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## What's new in NEW YEAR 2023 release ##

Browse Source 
- Support for Input Shaping in the Special Configuration repository
- Add MPC as default for precompiled version if program memory space allows it
- TMC Trinamic driver current editor menu when it is supported (not for standalone)
- Menu item for enable/disable Adaptive Step Smoothing when it is supported
- Reset Print stats confirmation
- Show message when is not possible to park head on pause
- Preheat hotend menu for Prepare/Filament management menu
- Mesh Leveling progress viewer
- Added PETG Preheat in precompiled versions (Current source supports 10 material preheats)
- And many improvements and fixes

From Marlin 2.1.2
- More SCURVE cycles on unoptimized cortex-m0 (#24955)
- Fix G-code resend race condition
- G30 move to logical XY (#24953)
- and many more fixes from latest bugfix 2.1.x
pull/668/head 20221222
Miguel Risco-Castillo 1 year ago
parent 8f2d09c334
commit 72b6093669
1637 changed files with 1457483 additions and 84 deletions
Show Stats Download Patch File Download Diff File

23
.editorconfig
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@ -0,0 +1,23 @@
# editorconfig.org
root = true
[{*.patch,syntax_test_*}]
trim_trailing_whitespace = false
[{*.c,*.cpp,*.h,*.ino}]
charset = utf-8
[{*.c,*.cpp,*.h,*.ino,Makefile}]
trim_trailing_whitespace = true
insert_final_newline = true
end_of_line = lf
indent_style = space
indent_size = 2
[{*.py}]
indent_style = space
indent_size = 4
[{*.conf,*.sublime-project}]
indent_style = tab
indent_size = 4

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.gitattributes vendored
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@ -0,0 +1,21 @@
# Set the default behavior, in case people don't have core.autocrlf set.
* text=auto
# Files with Unix line endings
*.c text eol=lf
*.cpp text eol=lf
*.h text eol=lf
*.ino text eol=lf
*.py text eol=lf
*.sh text eol=lf
*.scad text eol=lf
# Files with native line endings
# *.sln text
# Binary files
*.png binary
*.jpg binary
*.fon binary
*.bin binary
*.woff binary

14
.github/ISSUE_TEMPLATE/config.yml vendored
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@ -0,0 +1,14 @@
blank_issues_enabled: false
contact_links:
- name: 📖 Professional Firmware Documentation
url: https://github.com/mriscoc/Ender3V2S1/wiki
about: Lots of documentation about firmware settings and features.
- name: 📖 Marlin Documentation
url: https://marlinfw.org/
about: Lots of documentation on installing and using Marlin.
- name: 👤 Professional Firmware Facebook group
url: https://www.facebook.com/groups/513889302986197
about: Please ask and answer questions here.
- name: 💸 Want to donate?
url: https://www.paypal.com/paypalme/mriscoc
about: Your contribution to this project is always welcome!

17
.github/contributing.md vendored
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@ -34,8 +34,11 @@ This project and everyone participating in it is governed by the [Marlin Code of
We have a Message Board and a Facebook group where our knowledgable user community can provide helpful advice if you have questions.
* [Marlin RepRap forum](https://reprap.org/forum/list.php?415)
* [MarlinFirmware on Facebook](https://www.facebook.com/groups/1049718498464482/)
- [Marlin Documentation](https://marlinfw.org) - Official Marlin documentation
- Facebook Group ["Marlin Firmware"](https://www.facebook.com/groups/1049718498464482/)
- RepRap.org [Marlin Forum](https://forums.reprap.org/list.php?415)
- Facebook Group ["Marlin Firmware for 3D Printers"](https://www.facebook.com/groups/3Dtechtalk/)
- [Marlin Configuration](https://www.youtube.com/results?search_query=marlin+configuration) on YouTube
If chat is more your speed, you can join the MarlinFirmware Discord server:
@ -50,13 +53,13 @@ If chat is more your speed, you can join the MarlinFirmware Discord server:
This section guides you through submitting a Bug Report for Marlin. Following these guidelines helps maintainers and the community understand your report, reproduce the behavior, and find related reports.
Before creating a Bug Report, please test the "nightly" development branch, as you might find out that you don't need to create one. When you are creating a Bug Report, please [include as many details as possible](#how-do-i-submit-a-good-bug-report). Fill out [the required template](issue_template.md), the information it asks for helps us resolve issues faster.
Before creating a Bug Report, please test the "nightly" development branch, as you might find out that you don't need to create one. When you are creating a Bug Report, please [include as many details as possible](#how-do-i-submit-a-good-bug-report). Fill out [the required template](ISSUE_TEMPLATE/bug_report.yml), the information it asks for helps us resolve issues faster.
> **Note:** Regressions can happen. If you find a **Closed** issue that seems like your issue, go ahead and open a new issue and include a link to the original issue in the body of your new one. All you need to create a link is the issue number, preceded by #. For example, #8888.
#### How Do I Submit A (Good) Bug Report?
Bugs are tracked as [GitHub issues](https://guides.github.com/features/issues/). Use the New Issue button to create an issue and provide the following information by filling in [the template](issue_template.md).
Bugs are tracked as [GitHub issues](https://guides.github.com/features/issues/). Use the New Issue button to create an issue and provide the following information by filling in [the template](ISSUE_TEMPLATE/bug_report.yml).
Explain the problem and include additional details to help maintainers reproduce the problem:
@ -88,12 +91,12 @@ Include details about your configuration and environment:
This section guides you through submitting a suggestion for Marlin, including completely new features and minor improvements to existing functionality. Following these guidelines helps maintainers and the community understand your suggestion and find related suggestions.
Before creating a suggestion, please check [this list](#before-submitting-a-suggestion) as you might find out that you don't need to create one. When you are creating an enhancement suggestion, please [include as many details as possible](#how-do-i-submit-a-good-enhancement-suggestion). Fill in [the template](issue_template.md), including the steps that you imagine you would take if the feature you're requesting existed.
Before creating a suggestion, please check [this list](https://github.com/MarlinFirmware/Marlin/issues?q=is%3Aopen+is%3Aissue+label%3A%22T%3A+Feature+Request%22) as you might find out that you don't need to create one. When you are creating an enhancement suggestion, please [include as many details as possible](#how-do-i-submit-a-good-feature-request). Fill in [the template](ISSUE_TEMPLATE/feature_request.yml), including the steps that you imagine you would take if the feature you're requesting existed.
#### Before Submitting a Feature Request
* **Check the [Marlin website](https://marlinfw.org/)** for tips — you might discover that the feature is already included. Most importantly, check if you're using [the latest version of Marlin](https://github.com/MarlinFirmware/Marlin/releases) and if you can get the desired behavior by changing [Marlin's config settings](https://marlinfw.org/docs/configuration/configuration.html).
* **Perform a [cursory search](https://github.com/MarlinFirmware/Marlin/issues?q=is%3Aissue)** to see if the enhancement has already been suggested. If it has, add a comment to the existing issue instead of opening a new one.
* **Perform a [cursory search](https://github.com/MarlinFirmware/Marlin/issues?q=is%3Aopen+is%3Aissue+label%3A%22T%3A+Feature+Request%22)** to see if the enhancement has already been suggested. If it has, add a comment to the existing issue instead of opening a new one.
#### How Do I Submit A (Good) Feature Request?
@ -116,7 +119,7 @@ Unsure where to begin contributing to Marlin? You can start by looking through t
### Pull Requests
Pull Requests should always be targeted to working branches (e.g., `bugfix-1.1.x` and/or `bugfix-2.0.x`) and never to release branches (e.g., `1.1.x`). If this is your first Pull Request, please read our [Guide to Pull Requests](https://marlinfw.org/docs/development/getting_started_pull_requests.html) and Github's [Pull Request](https://help.github.com/articles/creating-a-pull-request/) documentation.
Pull Requests should always be targeted to working branches (e.g., `bugfix-2.1.x` and/or `bugfix-1.1.x`) and never to release branches (e.g., `2.0.x` and/or `1.1.x`). If this is your first Pull Request, please read our [Guide to Pull Requests](https://marlinfw.org/docs/development/getting_started_pull_requests.html) and Github's [Pull Request](https://help.github.com/articles/creating-a-pull-request/) documentation.
* Fill in [the required template](pull_request_template.md).
* Don't include issue numbers in the PR title.

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@ -1,35 +0,0 @@
<!--
Have you read Marlin's Code of Conduct? By filing an Issue, you are expected to comply with it, including treating everyone with respect: https://github.com/MarlinFirmware/Marlin/blob/bugfix-2.0.x/.github/code_of_conduct.md
Do you want to ask a question? Are you looking for support? Please don't post here. Instead use one of the following options:
- The Marlin Firmware forum at https://reprap.org/forum/list.php?415
- The MarlinFirmware Facebook Group at https://www.facebook.com/groups/1049718498464482/
- The MarlinFirmware Discord Server at https://discord.gg/n5NJ59y.
Before filing an issue be sure to test the latest "bugfix" branch to see whether the issue is already addressed.
-->
### Description
<!-- Description of the bug or requested feature -->
### Steps to Reproduce
<!-- If this is a Bug Report, please describe the steps needed to reproduce the issue -->
1. [First Step]
2. [Second Step]
3. [and so on...]
**Expected behavior:** [What you expect to happen]
**Actual behavior:** [What actually happens]
#### Additional Information
* Include a ZIP file containing your `Configuration.h` and `Configuration_adv.h` files.
* Provide pictures or links to videos that clearly demonstrate the issue.
* See [How Can I Contribute](#how-can-i-contribute) for additional guidelines.

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.github/pull_request_template.md vendored
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@ -1,23 +1,33 @@
### Requirements
<!--
Submitting a Pull Request
- Please fill out all sections of this form. You can delete the helpful comments.
- Pull Requests without clear information will take longer and may even be rejected.
- We get a high volume of submissions so please be patient during review.
* Filling out this template is required. Pull Requests without a clear description may be closed at the maintainers' discretion.
-->
### Description
<!--
We must be able to understand your proposed change from this description. If we can't understand what the code will do from this description, the Pull Request may be closed at the maintainers' discretion. Keep in mind that the maintainer reviewing this PR may not be familiar with or have worked with the code recently, so please walk us through the concepts.
Clearly describe the submitted changes with lots of details. Include images where helpful. Initial reviewers may not be familiar with the subject, so be as thorough as possible. You can use MarkDown syntax to improve readability with bullet lists, code blocks, and so on. PREVIEW and fix up formatting before submitting.
-->
### Requirements
<!-- Does this PR require a specific board, LCD, etc.? -->
### Benefits
<!-- What does this fix or improve? -->
<!-- What does this PR fix or improve? -->
### Configurations
<!-- Attach any Configuration.h, Configuration_adv.h, or platformio.ini files needed to compile/test your Pull Request. -->
<!-- Attach Configurations ZIP and any other files needed to test this PR. -->
### Related Issues
<!-- Whether this fixes a bug or fulfills a feature request, please list any related Issues here. -->
<!-- Does this PR fix a bug or fulfill a Feature Request? Link related Issues here. -->

59
.github/workflows/bump-date.yml vendored
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@ -0,0 +1,59 @@
#
# bump-date.yml
# Bump the distribution date once per day
#
name: Bump Distribution Date
on:
schedule:
- cron: '0 */6 * * *'
jobs:
bump_date:
name: Bump Distribution Date
if: github.repository == 'MarlinFirmware/Marlin'
runs-on: ubuntu-latest
steps:
- name: Check out bugfix-2.1.x
uses: actions/checkout@v2
with:
ref: bugfix-2.1.x
- name: Bump Date (bugfix-2.0.x)
run: |
# Inline Bump Script
if [[ ! "$( git log -1 --pretty=%B )" =~ ^\[cron\] ]]; then
DIST=$( date +"%Y-%m-%d" )
eval "sed -E -i 's/(#define +STRING_DISTRIBUTION_DATE) .*$/\1 \"$DIST\"/g' Marlin/src/inc/Version.h" && \
eval "sed -E -i 's/(#define +STRING_DISTRIBUTION_DATE) .*$/\1 \"$DIST\"/g' Marlin/Version.h" && \
git config user.name "${GITHUB_ACTOR}" && \
git config user.email "${GITHUB_ACTOR}@users.noreply.github.com" && \
git add . && \
git commit -m "[cron] Bump distribution date ($DIST)" && \
git push
fi
exit 0
- name: Check out bugfix-2.1.x
uses: actions/checkout@v2
with:
ref: bugfix-2.1.x
- name: Bump Date (bugfix-2.1.x)
run: |
# Inline Bump Script
if [[ ! "$( git log -1 --pretty=%B )" =~ ^\[cron\] ]]; then
DIST=$( date +"%Y-%m-%d" )
eval "sed -E -i 's/(#define +STRING_DISTRIBUTION_DATE) .*$/\1 \"$DIST\"/g' Marlin/src/inc/Version.h" && \
eval "sed -E -i 's/(#define +STRING_DISTRIBUTION_DATE) .*$/\1 \"$DIST\"/g' Marlin/Version.h" && \
git config user.name "${GITHUB_ACTOR}" && \
git config user.email "${GITHUB_ACTOR}@users.noreply.github.com" && \
git add . && \
git commit -m "[cron] Bump distribution date ($DIST)" && \
git push
fi
exit 0

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.github/workflows/check-pr.yml vendored
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@ -0,0 +1,34 @@
#
# check-pr.yml
# Close PRs directed at release branches
#
name: PR Bad Target
on:
pull_request_target:
types: [opened]
branches:
- 1.0.x
- 1.1.x
- 2.0.x
- 2.1.x
jobs:
bad_target:
name: PR Bad Target
if: github.repository == 'MarlinFirmware/Marlin'
runs-on: ubuntu-latest
steps:
- uses: superbrothers/close-pull-request@v3
with:
comment: >
Thanks for your contribution! Unfortunately we can't accept PRs directed at release branches. We make patches to the bugfix branches and only later do we push them out as releases.
Please redo this PR starting with the `bugfix-2.1.x` branch and be careful to target `bugfix-2.1.x` when resubmitting the PR. Patches may also target `bugfix-2.0.x` if they are specifically for 2.0.9.x.
It may help to set your fork's default branch to `bugfix-2.1.x`.
See [this page](https://marlinfw.org/docs/development/getting_started_pull_requests.html) for full instructions.

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.github/workflows/clean-closed.yml vendored
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@ -0,0 +1,39 @@
#
# clean-closed.yml
# Remove obsolete labels when an Issue or PR is closed
#
name: Clean Closed
on:
pull_request:
types: [closed]
issues:
types: [closed]
jobs:
remove_label:
runs-on: ubuntu-latest
strategy:
matrix:
label:
- "S: Don't Merge"
- "S: Hold for 2.1"
- "S: Please Merge"
- "S: Please Test"
- "help wanted"
- "Needs: Discussion"
- "Needs: Documentation"
- "Needs: More Data"
- "Needs: Patch"
- "Needs: Testing"
- "Needs: Work"
steps:
- uses: actions/checkout@v2
- name: Remove Labels
uses: actions-ecosystem/action-remove-labels@v1
with:
github_token: ${{ github.token }}
labels: ${{ matrix.label }}

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.github/workflows/close-stale.yml vendored
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@ -0,0 +1,28 @@
#
# close-stale.yml
# Close open issues after a period of inactivity
#
name: Close Stale Issues
on:
schedule:
- cron: "22 1 * * *"
jobs:
stale:
name: Close Stale Issues
if: github.repository == 'MarlinFirmware/Marlin'
runs-on: ubuntu-latest
steps:
- uses: actions/stale@v3
with:
repo-token: ${{ secrets.GITHUB_TOKEN }}
stale-issue-message: 'This issue has had no activity in the last 60 days. Please add a reply if you want to keep this issue active, otherwise it will be automatically closed within 10 days.'
days-before-stale: 60
days-before-close: 10
stale-issue-label: 'stale-closing-soon'
exempt-all-assignees: true
exempt-issue-labels: 'Bug: Confirmed !,T: Feature Request,Needs: More Data,Needs: Discussion,Needs: Documentation,Needs: Patch,Needs: Work,Needs: Testing,help wanted,no-locking'

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@ -0,0 +1,32 @@
#
# lock-closed.yml
# Lock closed issues after a period of inactivity
#
name: Lock Closed Issues
on:
schedule:
- cron: '0 1/13 * * *'
jobs:
lock:
name: Lock Closed Issues
if: github.repository == 'MarlinFirmware/Marlin'
runs-on: ubuntu-latest
steps:
- uses: dessant/lock-threads@v2
with:
github-token: ${{ github.token }}
process-only: 'issues'
issue-lock-inactive-days: '60'
issue-exclude-created-before: ''
issue-exclude-labels: 'no-locking'
issue-lock-labels: ''
issue-lock-comment: >
This issue has been automatically locked since there
has not been any recent activity after it was closed.
Please open a new issue for related bugs.
issue-lock-reason: ''

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.github/workflows/test-builds.yml vendored
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@ -8,7 +8,7 @@ name: CI
on:
pull_request:
branches:
- bugfix-2.0.x
- bugfix-2.1.x
paths-ignore:
- config/**
- data/**
@ -16,7 +16,7 @@ on:
- '**/*.md'
push:
branches:
- bugfix-2.0.x
- bugfix-2.1.x
paths-ignore:
- config/**
- data/**
@ -44,7 +44,9 @@ jobs:
- teensy31
- teensy35
- teensy41
- SAMD21_minitronics20
- SAMD51_grandcentral_m4
- PANDA_PI_V29
# Extended AVR Environments
@ -59,13 +61,13 @@ jobs:
#- STM32F103RC_btt_maple
- STM32F103RC_btt_USB_maple
- STM32F103RC_fysetc_maple
- STM32F103RC_meeb
- STM32F103RC_meeb_maple
- jgaurora_a5s_a1_maple
- STM32F103VE_longer_maple
#- mks_robin_maple
- mks_robin_lite_maple
- mks_robin_pro_maple
#- mks_robin_nano35_maple
#- mks_robin_nano_v1v2_maple
#- STM32F103RE_creality_maple
- STM32F103VE_ZM3E4V2_USB_maple
@ -76,9 +78,9 @@ jobs:
- STM32F103RE_btt
- STM32F103RE_btt_USB
- STM32F103RE_creality
- STM32F401RC_creality
- STM32F103VE_longer
- STM32F407VE_black
- STM32F401VE_STEVAL
- BIGTREE_BTT002
- BIGTREE_SKR_PRO
- BIGTREE_GTR_V1_0
@ -92,12 +94,17 @@ jobs:
- rumba32
- LERDGEX
- LERDGEK
- mks_robin_nano35
- mks_robin_nano_v1v2
#- mks_robin_nano_v1v2_usbmod
#- mks_robin_nano_v1_3_f4_usbmod
- NUCLEO_F767ZI
- REMRAM_V1
- BTT_SKR_SE_BX
- chitu_f103
- Index_Mobo_Rev03
- Opulo_Lumen_REV3
# ESP32 environments
- mks_tinybee
# Put lengthy tests last
@ -113,10 +120,10 @@ jobs:
steps:
- name: Check out the PR
uses: actions/checkout@v2
uses: actions/checkout@v3
- name: Cache pip
uses: actions/cache@v2
uses: actions/cache@v3
with:
path: ~/.cache/pip
key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
@ -124,21 +131,22 @@ jobs:
${{ runner.os }}-pip-
- name: Cache PlatformIO
uses: actions/cache@v2
uses: actions/cache@v3
with:
path: ~/.platformio
key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
- name: Select Python 3.7
uses: actions/setup-python@v2
uses: actions/setup-python@v3
with:
python-version: '3.7' # Version range or exact version of a Python version to use, using semvers version range syntax.
architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
- name: Install PlatformIO
run: |
pip install -U https://github.com/platformio/platformio-core/archive/develop.zip
platformio update
pip install -U platformio
pio upgrade --dev
pio pkg update --global
- name: Run ${{ matrix.test-platform }} Tests
run: |

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@ -0,0 +1,22 @@
#
# unlock-reopened.yml
# Unlock an issue whenever it is re-opened
#
name: "Unlock reopened issue"
on:
issues:
types: [reopened]
jobs:
unlock:
name: Unlock Reopened
if: github.repository == 'MarlinFirmware/Marlin'
runs-on: ubuntu-latest
steps:
- uses: OSDKDev/unlock-issues@v1.1
with:
repo-token: "${{ secrets.GITHUB_TOKEN }}"

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.gitignore vendored
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@ -0,0 +1,172 @@
#
# Marlin 3D Printer Firmware
# Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
#
# Based on Sprinter and grbl.
# Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
# Generated files
_Version.h
bdf2u8g
marlin_config.json
mczip.h
*.gen
*.sublime-workspace
#
# OS
#
applet/
.DS_Store
#
# Misc
#
*~
*.orig
*.rej
*.bak
*.idea
*.i
*.ii
*.swp
tags
#
# C++
#
# Compiled Object files
*.slo
*.lo
*.o
*.obj
*.ino.cpp
# Precompiled Headers
*.gch
*.pch
# Compiled Dynamic libraries
*.so
*.dylib
*.dll
# Fortran module files
*.mod
*.smod
# Compiled Static libraries
*.lai
*.la
*.a
*.lib
# Executables
*.exe
*.out
*.app
#
# C
#
# Object files
*.o
*.ko
*.obj
*.elf
# Precompiled Headers
*.gch
*.pch
# Libraries
*.lib
*.a
*.la
*.lo
# Shared objects (inc. Windows DLLs)
*.dll
*.so
*.so.*
*.dylib
# Executables
*.exe
*.out
*.app
*.i*86
*.x86_64
*.hex
# Debug files
*.dSYM/
*.su
# PlatformIO files/dirs
.pio*
.pioenvs
.piolibdeps
.clang_complete
.gcc-flags.json
/lib/
# Secure Credentials
Configuration_Secure.h
# Visual Studio
*.sln
*.vcxproj
*.vcxproj.user
*.vcxproj.filters
Release/
Debug/
__vm/
.vs/
vc-fileutils.settings
# Visual Studio Code
.vscode/*
!.vscode/extensions.json
#Simulation
imgui.ini
eeprom.dat
spi_flash.bin
fs.img
#cmake
CMakeLists.txt
src/CMakeLists.txt
CMakeListsPrivate.txt
build/
# CLion
cmake-build-*
# Eclipse
.project
.cproject
.pydevproject
.settings
.classpath
# Python
__pycache__
# IOLogger logs
*_log.csv

52
Makefile
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@ -0,0 +1,52 @@
help:
@echo "Tasks for local development:"
@echo "* tests-single-ci: Run a single test from inside the CI"
@echo "* tests-single-local: Run a single test locally"
@echo "* tests-single-local-docker: Run a single test locally, using docker-compose"
@echo "* tests-all-local: Run all tests locally"
@echo "* tests-all-local-docker: Run all tests locally, using docker-compose"
@echo "* setup-local-docker: Setup local docker-compose"
@echo ""
@echo "Options for testing:"
@echo " TEST_TARGET Set when running tests-single-*, to select the"
@echo " test. If you set it to ALL it will run all "
@echo " tests, but some of them are broken: use "
@echo " tests-all-* instead to run only the ones that "
@echo " run on GitHub CI"
@echo " ONLY_TEST Limit tests to only those that contain this, or"
@echo " the index of the test (1-based)"
@echo " VERBOSE_PLATFORMIO If you want the full PIO output, set any value"
@echo " GIT_RESET_HARD Used by CI: reset all local changes. WARNING:"
@echo " THIS WILL UNDO ANY CHANGES YOU'VE MADE!"
.PHONY: help
tests-single-ci:
export GIT_RESET_HARD=true
$(MAKE) tests-single-local TEST_TARGET=$(TEST_TARGET)
.PHONY: tests-single-ci
tests-single-local:
@if ! test -n "$(TEST_TARGET)" ; then echo "***ERROR*** Set TEST_TARGET=<your-module> or use make tests-all-local" ; return 1; fi
export PATH="./buildroot/bin/:./buildroot/tests/:${PATH}" \
&& export VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) \
&& run_tests . $(TEST_TARGET) "$(ONLY_TEST)"
.PHONY: tests-single-local
tests-single-local-docker:
@if ! test -n "$(TEST_TARGET)" ; then echo "***ERROR*** Set TEST_TARGET=<your-module> or use make tests-all-local-docker" ; return 1; fi
docker-compose run --rm marlin $(MAKE) tests-single-local TEST_TARGET=$(TEST_TARGET) VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) GIT_RESET_HARD=$(GIT_RESET_HARD) ONLY_TEST="$(ONLY_TEST)"
.PHONY: tests-single-local-docker
tests-all-local:
export PATH="./buildroot/bin/:./buildroot/tests/:${PATH}" \
&& export VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) \
&& for TEST_TARGET in $$(./get_test_targets.py) ; do echo "Running tests for $$TEST_TARGET" ; run_tests . $$TEST_TARGET ; done
.PHONY: tests-all-local
tests-all-local-docker:
docker-compose run --rm marlin $(MAKE) tests-all-local VERBOSE_PLATFORMIO=$(VERBOSE_PLATFORMIO) GIT_RESET_HARD=$(GIT_RESET_HARD)
.PHONY: tests-all-local-docker
setup-local-docker:
docker-compose build
.PHONY: setup-local-docker

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Marlin/Marlin.ino
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/*==============================================================================
Marlin Firmware
(c) 2011-2020 MarlinFirmware
Portions of Marlin are (c) by their respective authors.
All code complies with GPLv2 and/or GPLv3
================================================================================
Greetings! Thank you for choosing Marlin 2 as your 3D printer firmware.
To configure Marlin you must edit Configuration.h and Configuration_adv.h
located in the root 'Marlin' folder. Check our Configurations repository to
see if there's a more suitable starting-point for your specific hardware.
Before diving in, we recommend the following essential links:
Marlin Firmware Official Website
- https://marlinfw.org/
The official Marlin Firmware website contains the most up-to-date
documentation. Contributions are always welcome!
Configuration
- https://github.com/MarlinFirmware/Configurations
Example configurations for several printer models.
- https://www.youtube.com/watch?v=3gwWVFtdg-4
A good 20-minute overview of Marlin configuration by Tom Sanladerer.
(Applies to Marlin 1.0.x, so Jerk and Acceleration should be halved.)
Also... https://www.google.com/search?tbs=vid%3A1&q=configure+marlin
- https://marlinfw.org/docs/configuration/configuration.html
Marlin's configuration options are explained in more detail here.
Getting Help
- https://reprap.org/forum/list.php?415
The Marlin Discussion Forum is a great place to get help from other Marlin
users who may have experienced similar issues to your own.
- https://github.com/MarlinFirmware/Marlin/issues
With a free GitHub account you can provide us with feedback, bug reports,
and feature requests via the Marlin Issue Queue.
Contributing
- https://marlinfw.org/docs/development/contributing.html
If you'd like to contribute to Marlin, read this first!
- https://marlinfw.org/docs/development/coding_standards.html
Before submitting code get to know the Coding Standards.
------------------------------------------------------------------------------*/

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Marlin/Version.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
////////////////////////////
// VENDOR VERSION EXAMPLE //
////////////////////////////
/**
* Marlin release version identifier
*/
#define SHORT_BUILD_VERSION "2.1.3 MRiscoC"
/**
* Verbose version identifier which should contain a reference to the location
* from where the binary was downloaded or the source code was compiled.
*/
#define DETAILED_BUILD_VERSION SHORT_BUILD_VERSION " Ender3V2-422-MM, based on bugfix-2.1.x"
/**
* The STRING_DISTRIBUTION_DATE represents when the binary file was built,
* here we define this default string as the date where the latest release
* version was tagged.
*/
//#define STRING_DISTRIBUTION_DATE "2022-12-14"
#define STRING_DISTRIBUTION_DATE __DATE__
#define STRING_DISTRIBUTION_TIME __TIME__
/**
* Defines a generic printer name to be output to the LCD after booting Marlin.
*/
#define MACHINE_NAME "Ender 3V2"
/**
* The SOURCE_CODE_URL is the location where users will find the Marlin Source
* Code which is installed on the device. In most cases —unless the manufacturer
* has a distinct Github fork— the Source Code URL should just be the main
* Marlin repository.
*/
#define SOURCE_CODE_URL "github.com/mriscoc/Ender3V2S1"
/**
* Default generic printer UUID.
*/
//#define DEFAULT_MACHINE_UUID "cede2a2f-41a2-4748-9b12-c55c62f367ff"
/**
* The WEBSITE_URL is the location where users can get more information such as
* documentation about a specific Marlin release.
*/
#define WEBSITE_URL "github.com/mriscoc/Ender3V2S1/wiki"
/**
* Set the vendor info the serial USB interface, if changable
* Currently only supported by DUE platform
*/
//#define USB_DEVICE_VENDOR_ID 0x0000
//#define USB_DEVICE_PRODUCT_ID 0x0000
//#define USB_DEVICE_MANUFACTURE_NAME WEBSITE_URL

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Marlin/config.ini
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#
# Marlin Firmware
# config.ini - Options to apply before the build
#
[config:base]
ini_use_config = none
# Load all config: sections in this file
;ini_use_config = all
# Load config file relative to Marlin/
;ini_use_config = another.ini
# Download configurations from GitHub
;ini_use_config = example/Creality/Ender-5 Plus @ bugfix-2.1.x
# Download configurations from your server
;ini_use_config = https://me.myserver.com/path/to/configs
# Evaluate config:base and do a config dump
;ini_use_config = base
;config_export = 2
[config:minimal]
motherboard = BOARD_RAMPS_14_EFB
serial_port = 0
baudrate = 250000
use_watchdog = on
thermal_protection_hotends = on
thermal_protection_hysteresis = 4
thermal_protection_period = 40
bufsize = 4
block_buffer_size = 16
max_cmd_size = 96
extruders = 1
temp_sensor_0 = 1
temp_hysteresis = 3
heater_0_mintemp = 5
heater_0_maxtemp = 275
preheat_1_temp_hotend = 180
bang_max = 255
pidtemp = on
pid_k1 = 0.95
pid_max = BANG_MAX
pid_functional_range = 10
default_kp = 22.20
default_ki = 1.08
default_kd = 114.00
x_driver_type = A4988
y_driver_type = A4988
z_driver_type = A4988
e0_driver_type = A4988
x_bed_size = 200
x_min_pos = 0
x_max_pos = X_BED_SIZE
y_bed_size = 200
y_min_pos = 0
y_max_pos = Y_BED_SIZE
z_min_pos = 0
z_max_pos = 200
x_home_dir = -1
y_home_dir = -1
z_home_dir = -1
use_xmin_plug = on
use_ymin_plug = on
use_zmin_plug = on
x_min_endstop_inverting = false
y_min_endstop_inverting = false
z_min_endstop_inverting = false
default_axis_steps_per_unit = { 80, 80, 400, 500 }
axis_relative_modes = { false, false, false, false }
default_max_feedrate = { 300, 300, 5, 25 }
default_max_acceleration = { 3000, 3000, 100, 10000 }
homing_feedrate_mm_m = { (50*60), (50*60), (4*60) }
homing_bump_divisor = { 2, 2, 4 }
x_enable_on = 0
y_enable_on = 0
z_enable_on = 0
e_enable_on = 0
invert_x_dir = false
invert_y_dir = true
invert_z_dir = false
invert_e0_dir = false
invert_e_step_pin = false
invert_x_step_pin = false
invert_y_step_pin = false
invert_z_step_pin = false
disable_x = false
disable_y = false
disable_z = false
disable_e = false
proportional_font_ratio = 1.0
default_nominal_filament_dia = 1.75
junction_deviation_mm = 0.013
default_acceleration = 3000
default_travel_acceleration = 3000
default_retract_acceleration = 3000
default_minimumfeedrate = 0.0
default_mintravelfeedrate = 0.0
minimum_planner_speed = 0.05
min_steps_per_segment = 6
default_minsegmenttime = 20000
[config:basic]
bed_overshoot = 10
busy_while_heating = on
default_ejerk = 5.0
default_keepalive_interval = 2
default_leveling_fade_height = 0.0
disable_inactive_extruder = on
display_charset_hd44780 = JAPANESE
eeprom_boot_silent = on
eeprom_chitchat = on
endstoppullups = on
extrude_maxlength = 200
extrude_mintemp = 170
host_keepalive_feature = on
hotend_overshoot = 15
jd_handle_small_segments = on
lcd_info_screen_style = 0
lcd_language = en
max_bed_power = 255
mesh_inset = 0
min_software_endstops = on
max_software_endstops = on
min_software_endstop_x = on
min_software_endstop_y = on
min_software_endstop_z = on
max_software_endstop_x = on
max_software_endstop_y = on
max_software_endstop_z = on
preheat_1_fan_speed = 0
preheat_1_label = "PLA"
preheat_1_temp_bed = 70
prevent_cold_extrusion = on
prevent_lengthy_extrude = on
printjob_timer_autostart = on
probing_margin = 10
show_bootscreen = on
soft_pwm_scale = 0
string_config_h_author = "(none, default config)"
temp_bed_hysteresis = 3
temp_bed_residency_time = 10
temp_bed_window = 1
temp_residency_time = 10
temp_window = 1
validate_homing_endstops = on
xy_probe_feedrate = (133*60)
z_clearance_between_probes = 5
z_clearance_deploy_probe = 10
z_clearance_multi_probe = 5
[config:advanced]
arc_support = on
auto_report_temperatures = on
autotemp = on
autotemp_oldweight = 0.98
bed_check_interval = 5000
default_stepper_deactive_time = 120
default_volumetric_extruder_limit = 0.00
disable_inactive_e = true
disable_inactive_x = true
disable_inactive_y = true
disable_inactive_z = true
e0_auto_fan_pin = -1
encoder_100x_steps_per_sec = 80
encoder_10x_steps_per_sec = 30
encoder_rate_multiplier = on
extended_capabilities_report = on
extruder_auto_fan_speed = 255
extruder_auto_fan_temperature = 50
fanmux0_pin = -1
fanmux1_pin = -1
fanmux2_pin = -1
faster_gcode_parser = on
homing_bump_mm = { 5, 5, 2 }
max_arc_segment_mm = 1.0
min_arc_segment_mm = 0.1
min_circle_segments = 72
n_arc_correction = 25
serial_overrun_protection = on
slowdown = on
slowdown_divisor = 2
temp_sensor_bed = 0
thermal_protection_bed_hysteresis = 2
thermocouple_max_errors = 15
tx_buffer_size = 0
watch_bed_temp_increase = 2
watch_bed_temp_period = 60
watch_temp_increase = 2
watch_temp_period = 20

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Marlin/lib/readme.txt
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This directory is intended for the project specific (private) libraries.
PlatformIO will compile them to static libraries and link to executable file.
The source code of each library should be placed in separate directory, like
"lib/private_lib/[here are source files]".
For example, see how can be organized `Foo` and `Bar` libraries:
|--lib
| |--Bar
| | |--docs
| | |--examples
| | |--src
| | |- Bar.c
| | |- Bar.h
| |--Foo
| | |- Foo.c
| | |- Foo.h
| |- readme.txt --> THIS FILE
|- platformio.ini
|--src
|- main.c
Then in `src/main.c` you should use:
#include <Foo.h>
#include <Bar.h>
// rest H/C/CPP code
PlatformIO will find your libraries automatically, configure preprocessor's
include paths and build them.
More information about PlatformIO Library Dependency Finder
- https://docs.platformio.org/page/librarymanager/ldf.html

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Marlin/src/HAL/HAL.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#include "platforms.h"
#ifndef GCC_VERSION
#define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
#endif
#include HAL_PATH(.,HAL.h)
extern MarlinHAL hal;
#define HAL_ADC_RANGE _BV(HAL_ADC_RESOLUTION)
#ifndef I2C_ADDRESS
#define I2C_ADDRESS(A) uint8_t(A)
#endif
// Needed for AVR sprintf_P PROGMEM extension
#ifndef S_FMT
#define S_FMT "%s"
#endif
// String helper
#ifndef PGMSTR
#define PGMSTR(NAM,STR) const char NAM[] = STR
#endif

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Marlin/src/HAL/SAMD21/HAL.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#ifdef __SAMD21__
#include "../../inc/MarlinConfig.h"
#include <wiring_private.h>
#if USING_HW_SERIALUSB
DefaultSerial1 MSerialUSB(false, SerialUSB);
#endif
#if USING_HW_SERIAL0
DefaultSerial2 MSerial1(false, Serial1);
#endif
#if USING_HW_SERIAL1
DefaultSerial3 MSerial2(false, Serial2);
#endif
#define WDT_CONFIG_PER_7_Val 0x9u
#define WDT_CONFIG_PER_Pos 0
#define WDT_CONFIG_PER_7 (WDT_CONFIG_PER_7_Val << WDT_CONFIG_PER_Pos)
#if ENABLED(USE_WATCHDOG)
#define WDT_TIMEOUT_REG TERN(WATCHDOG_DURATION_8S, WDT_CONFIG_PER_CYC8192, WDT_CONFIG_PER_CYC4096) // 4 or 8 second timeout
void MarlinHAL::watchdog_init() {
// Set up the generic clock (GCLK2) used to clock the watchdog timer at 1.024kHz
GCLK->GENDIV.reg = GCLK_GENDIV_DIV(4) | // Divide the 32.768kHz clock source by divisor 32, where 2^(4 + 1): 32.768kHz/32=1.024kHz
GCLK_GENDIV_ID(2); // Select Generic Clock (GCLK) 2
while (GCLK->STATUS.bit.SYNCBUSY); // Wait for synchronization
REG_GCLK_GENCTRL = GCLK_GENCTRL_DIVSEL | // Set to divide by 2^(GCLK_GENDIV_DIV(4) + 1)
GCLK_GENCTRL_IDC | // Set the duty cycle to 50/50 HIGH/LOW
GCLK_GENCTRL_GENEN | // Enable GCLK2
GCLK_GENCTRL_SRC_OSCULP32K | // Set the clock source to the ultra low power oscillator (OSCULP32K)
GCLK_GENCTRL_ID(2); // Select GCLK2
while (GCLK->STATUS.bit.SYNCBUSY); // Wait for synchronization
// Feed GCLK2 to WDT (Watchdog Timer)
REG_GCLK_CLKCTRL = GCLK_CLKCTRL_CLKEN | // Enable GCLK2 to the WDT
GCLK_CLKCTRL_GEN_GCLK2 | // Select GCLK2
GCLK_CLKCTRL_ID_WDT; // Feed the GCLK2 to the WDT
while (GCLK->STATUS.bit.SYNCBUSY); // Wait for synchronization
WDT->CONFIG.bit.PER = WDT_CONFIG_PER_7; // Set the WDT reset timeout to 4 seconds
while (WDT->STATUS.bit.SYNCBUSY); // Wait for synchronization
REG_WDT_CTRL = WDT_CTRL_ENABLE; // Enable the WDT in normal mode
while (WDT->STATUS.bit.SYNCBUSY); // Wait for synchronization
}
// Reset watchdog. MUST be called at least every 4 seconds after the
// first watchdog_init or SAMD will go into emergency procedures.
void MarlinHAL::watchdog_refresh() {
WDT->CLEAR.reg = WDT_CLEAR_CLEAR_KEY;
while (WDT->STATUS.bit.SYNCBUSY);
}
#endif
// ------------------------
// Types
// ------------------------
// ------------------------
// Private Variables
// ------------------------
// ------------------------
// Private functions
// ------------------------
void MarlinHAL::dma_init() {}
// ------------------------
// Public functions
// ------------------------
// HAL initialization task
void MarlinHAL::init() {
TERN_(DMA_IS_REQUIRED, dma_init());
#if ENABLED(SDSUPPORT)
#if HAS_SD_DETECT && SD_CONNECTION_IS(ONBOARD)
SET_INPUT_PULLUP(SD_DETECT_PIN);
#endif
OUT_WRITE(SDSS, HIGH); // Try to set SDSS inactive before any other SPI users start up
#endif
}
#pragma push_macro("WDT")
#undef WDT // Required to be able to use '.bit.WDT'. Compiler wrongly replace struct field with WDT define
uint8_t MarlinHAL::get_reset_source() {
return 0;
}
#pragma pop_macro("WDT")
void MarlinHAL::reboot() { NVIC_SystemReset(); }
extern "C" {
void * _sbrk(int incr);
extern unsigned int __bss_end__; // end of bss section
}
// Return free memory between end of heap (or end bss) and whatever is current
int freeMemory() {
int free_memory, heap_end = (int)_sbrk(0);
return (int)&free_memory - (heap_end ?: (int)&__bss_end__);
}
// ------------------------
// ADC
// ------------------------
uint16_t MarlinHAL::adc_result;
void MarlinHAL::adc_init() {
/* thanks to https://www.eevblog.com/forum/microcontrollers/samd21g18-adc-with-resrdy-interrupts-only-reads-once-or-twice/ */
ADC->CTRLA.bit.ENABLE = false;
while(ADC->STATUS.bit.SYNCBUSY);
// load chip corrections
uint32_t bias = (*((uint32_t *) ADC_FUSES_BIASCAL_ADDR) & ADC_FUSES_BIASCAL_Msk) >> ADC_FUSES_BIASCAL_Pos;
uint32_t linearity = (*((uint32_t *) ADC_FUSES_LINEARITY_0_ADDR) & ADC_FUSES_LINEARITY_0_Msk) >> ADC_FUSES_LINEARITY_0_Pos;
linearity |= ((*((uint32_t *) ADC_FUSES_LINEARITY_1_ADDR) & ADC_FUSES_LINEARITY_1_Msk) >> ADC_FUSES_LINEARITY_1_Pos) << 5;
/* Wait for bus synchronization. */
while (ADC->STATUS.bit.SYNCBUSY) {};
ADC->CALIB.reg = ADC_CALIB_BIAS_CAL(bias) | ADC_CALIB_LINEARITY_CAL(linearity);
/* Wait for bus synchronization. */
while (ADC->STATUS.bit.SYNCBUSY) {};
ADC->CTRLA.bit.SWRST = true;
while(ADC->STATUS.bit.SYNCBUSY);
ADC->REFCTRL.reg = ADC_REFCTRL_REFSEL_INTVCC1;
ADC->AVGCTRL.reg = ADC_AVGCTRL_SAMPLENUM_32| ADC_AVGCTRL_ADJRES(4);;
ADC->CTRLB.reg = ADC_CTRLB_PRESCALER_DIV128 |
ADC_CTRLB_RESSEL_16BIT |
ADC_CTRLB_FREERUN;
while(ADC->STATUS.bit.SYNCBUSY);
ADC->SAMPCTRL.bit.SAMPLEN = 0x00;
while(ADC->STATUS.bit.SYNCBUSY);
ADC->INPUTCTRL.reg = ADC_INPUTCTRL_INPUTSCAN(HAL_ADC_AIN_LEN) // scan (INPUTSCAN + NUM_EXTUDERS - 1) pins
| ADC_INPUTCTRL_GAIN_DIV2 |ADC_INPUTCTRL_MUXNEG_GND| HAL_ADC_AIN_START ; /* set to first AIN */
while(ADC->STATUS.bit.SYNCBUSY);
ADC->INTENSET.reg |= ADC_INTENSET_RESRDY; // enable Result Ready ADC interrupts
while (ADC->STATUS.bit.SYNCBUSY);
NVIC_EnableIRQ(ADC_IRQn); // enable ADC interrupts
NVIC_SetPriority(ADC_IRQn, 3);
ADC->CTRLA.bit.ENABLE = true;
}
volatile uint32_t adc_results[HAL_ADC_AIN_NUM_SENSORS];
void ADC_Handler() {
while(ADC->STATUS.bit.SYNCBUSY == 1);
int pos = ADC->INPUTCTRL.bit.INPUTOFFSET;
adc_results[pos] = ADC->RESULT.reg; /* Read the value. */
ADC->INTFLAG.reg = ADC_INTENSET_RESRDY; /* Clear the data ready flag. */
}
void MarlinHAL::adc_start(const pin_t pin) {
/* due to the way INPUTOFFSET works, the last sensor is the first position in the array
and we want the ADC_handler interrupt to be as simple possible, so we do the calculation here.
*/
unsigned int pos = PIN_TO_INPUTCTRL(pin) - HAL_ADC_AIN_START + 1;
if (pos == HAL_ADC_AIN_NUM_SENSORS) pos = 0;
adc_result = adc_results[pos]; // 16-bit resolution
//adc_result = 0xFFFF;
}
#endif // __SAMD21__

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Marlin/src/HAL/SAMD21/HAL.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#define CPU_32_BIT
#include "../shared/Marduino.h"
#include "../shared/math_32bit.h"
#include "../shared/HAL_SPI.h"
#include "fastio.h"
// ------------------------
// Serial ports
// ------------------------
#include "../../core/serial_hook.h"
typedef ForwardSerial1Class< decltype(SerialUSB) > DefaultSerial1;
extern DefaultSerial1 MSerialUSB;
// Serial ports
typedef ForwardSerial1Class< decltype(Serial1) > DefaultSerial2;
typedef ForwardSerial1Class< decltype(Serial2) > DefaultSerial3;
extern DefaultSerial2 MSerial0;
extern DefaultSerial3 MSerial1;
#define __MSERIAL(X) MSerial##X
#define _MSERIAL(X) __MSERIAL(X)
#define MSERIAL(X) _MSERIAL(INCREMENT(X))
#if WITHIN(SERIAL_PORT, 0, 1)
#define MYSERIAL1 MSERIAL(SERIAL_PORT)
#elif SERIAL_PORT == -1
#define MYSERIAL1 MSerialUSB
#else
#error "SERIAL_PORT must be -1 (Native USB only)."
#endif
#ifdef SERIAL_PORT_2
#if WITHIN(SERIAL_PORT_2, 0, 1)
#define MYSERIAL2 MSERIAL(SERIAL_PORT)
#elif SERIAL_PORT_2 == -1
#define MYSERIAL2 MSerialUSB
#else
#error "SERIAL_PORT_2 must be -1 (Native USB only)."
#endif
#endif
#ifdef MMU2_SERIAL_PORT
#if WITHIN(MMU2_SERIAL_PORT, 0, 1)
#define MMU2_SERIAL MSERIAL(SERIAL_PORT)
#elif MMU2_SERIAL_PORT == -1
#define MMU2_SERIAL MSerialUSB
#else
#error "MMU2_SERIAL_PORT must be -1 (Native USB only)."
#endif
#endif
#ifdef LCD_SERIAL_PORT
#if WITHIN(LCD_SERIAL_PORT, 0, 1)
#define LCD_SERIAL MSERIAL(SERIAL_PORT)
#elif LCD_SERIAL_PORT == -1
#define LCD_SERIAL MSerialUSB
#else
#error "LCD_SERIAL_PORT must be -1 (Native USB only)."
#endif
#endif
typedef int8_t pin_t;
#define SHARED_SERVOS HAS_SERVOS // Use shared/servos.cpp
class Servo;
typedef Servo hal_servo_t;
//
// Interrupts
//
#define CRITICAL_SECTION_START() const bool irqon = !__get_PRIMASK(); __disable_irq()
#define CRITICAL_SECTION_END() if (irqon) __enable_irq()
#define cli() __disable_irq() // Disable interrupts
#define sei() __enable_irq() // Enable interrupts
//
// ADC
//
#define HAL_ADC_FILTERED 1 // Disable Marlin's oversampling. The HAL filters ADC values.
#define HAL_ADC_VREF 3.3
#define HAL_ADC_RESOLUTION 12
#define HAL_ADC_AIN_START ADC_INPUTCTRL_MUXPOS_PIN3
#define HAL_ADC_AIN_NUM_SENSORS 3
#define HAL_ADC_AIN_LEN HAL_ADC_AIN_NUM_SENSORS-1
//
// Pin Mapping for M42, M43, M226
//
#define GET_PIN_MAP_PIN(index) index
#define GET_PIN_MAP_INDEX(pin) pin
#define PARSED_PIN_INDEX(code, dval) parser.intval(code, dval)
//
// Tone
//
void tone(const pin_t _pin, const unsigned int frequency, const unsigned long duration=0);
void noTone(const pin_t _pin);
// ------------------------
// Class Utilities
// ------------------------
#pragma GCC diagnostic push
#if GCC_VERSION <= 50000
#pragma GCC diagnostic ignored "-Wunused-function"
#endif
#ifdef __cplusplus
extern "C" {
#endif
char *dtostrf(double __val, signed char __width, unsigned char __prec, char *__s);
extern "C" int freeMemory();
#ifdef __cplusplus
}
#endif
#pragma GCC diagnostic pop
// ------------------------
// MarlinHAL Class
// ------------------------
class MarlinHAL {
public:
// Earliest possible init, before setup()
MarlinHAL() {}
// Watchdog
static void watchdog_init() IF_DISABLED(USE_WATCHDOG, {});
static void watchdog_refresh() IF_DISABLED(USE_WATCHDOG, {});
static void init(); // Called early in setup()
static void init_board() {} // Called less early in setup()
static void reboot(); // Restart the firmware from 0x0
// Interrupts
static bool isr_state() { return !__get_PRIMASK(); }
static void isr_on() { sei(); }
static void isr_off() { cli(); }
static void delay_ms(const int ms) { delay(ms); }
// Tasks, called from idle()
static void idletask() {}
// Reset
static uint8_t get_reset_source();
static void clear_reset_source() {}
// Free SRAM
static int freeMemory() { return ::freeMemory(); }
//
// ADC Methods
//
static uint16_t adc_result;
// Called by Temperature::init once at startup
static void adc_init();
// Called by Temperature::init for each sensor at startup
static void adc_enable(const uint8_t ch) {}
// Begin ADC sampling on the given pin. Called from Temperature::isr!
static void adc_start(const pin_t pin);
// Is the ADC ready for reading?
static bool adc_ready() { return true; }
// The current value of the ADC register
static uint16_t adc_value() { return adc_result; }
/**
* Set the PWM duty cycle for the pin to the given value.
* No option to invert the duty cycle [default = false]
* No option to change the scale of the provided value to enable finer PWM duty control [default = 255]
*/
static void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t=255, const bool=false) {
analogWrite(pin, v);
}
private:
static void dma_init();
};

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Marlin/src/HAL/SAMD21/HAL_SPI.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
/**
* Hardware and software SPI implementations are included in this file.
*
* Control of the slave select pin(s) is handled by the calling routines and
* SAMD21 let hardware SPI handling to remove SS from its logic.
*/
#ifdef __SAMD21__
// --------------------------------------------------------------------------
// Includes
// --------------------------------------------------------------------------
#include "../../inc/MarlinConfig.h"
#include <SPI.h>
// --------------------------------------------------------------------------
// Public functions
// --------------------------------------------------------------------------
#if EITHER(SOFTWARE_SPI, FORCE_SOFT_SPI)
// ------------------------
// Software SPI
// ------------------------
#error "Software SPI not supported for SAMD21. Use Hardware SPI."
#else // !SOFTWARE_SPI
static SPISettings spiConfig;
// ------------------------
// Hardware SPI
// ------------------------
void spiBegin() {
spiInit(SPI_HALF_SPEED);
}
void spiInit(uint8_t spiRate) {
// Use datarates Marlin uses
uint32_t clock;
switch (spiRate) {
case SPI_FULL_SPEED: clock = 8000000; break;
case SPI_HALF_SPEED: clock = 4000000; break;
case SPI_QUARTER_SPEED: clock = 2000000; break;
case SPI_EIGHTH_SPEED: clock = 1000000; break;
case SPI_SIXTEENTH_SPEED: clock = 500000; break;
case SPI_SPEED_5: clock = 250000; break;
case SPI_SPEED_6: clock = 125000; break;
default: clock = 4000000; break; // Default from the SPI library
}
spiConfig = SPISettings(clock, MSBFIRST, SPI_MODE0);
SPI.begin();
}
/**
* @brief Receives a single byte from the SPI port.
*
* @return Byte received
*
* @details
*/
uint8_t spiRec() {
SPI.beginTransaction(spiConfig);
uint8_t returnByte = SPI.transfer(0xFF);
SPI.endTransaction();
return returnByte;
}
/**
* @brief Receives a number of bytes from the SPI port to a buffer
*
* @param buf Pointer to starting address of buffer to write to.
* @param nbyte Number of bytes to receive.
* @return Nothing
*/
void spiRead(uint8_t *buf, uint16_t nbyte) {
if (nbyte == 0) return;
memset(buf, 0xFF, nbyte);
SPI.beginTransaction(spiConfig);
SPI.transfer(buf, nbyte);
SPI.endTransaction();
}
/**
* @brief Sends a single byte on SPI port
*
* @param b Byte to send
*
* @details
*/
void spiSend(uint8_t b) {
SPI.beginTransaction(spiConfig);
SPI.transfer(b);
SPI.endTransaction();
}
/**
* @brief Write token and then write from 512 byte buffer to SPI (for SD card)
*
* @param buf Pointer with buffer start address
* @return Nothing
*
* @details Uses DMA
*/
void spiSendBlock(uint8_t token, const uint8_t *buf) {
SPI.beginTransaction(spiConfig);
SPI.transfer(token);
SPI.transfer((uint8_t*)buf, 512);
SPI.endTransaction();
}
void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) {
spiConfig = SPISettings(spiClock, (BitOrder)bitOrder, dataMode);
SPI.beginTransaction(spiConfig);
}
#endif // !SOFTWARE_SPI
#endif // __SAMD21__

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Marlin/src/HAL/SAMD21/MarlinSPI.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#pragma once
#include <SPI.h>
using MarlinSPI = SPIClass;

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Marlin/src/HAL/SAMD21/QSPIFlash.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#include "../../inc/MarlinConfig.h"
#if ENABLED(QSPI_EEPROM)
#include "QSPIFlash.h"
#define INVALID_ADDR 0xFFFFFFFF
#define SECTOR_OF(a) (a & ~(SFLASH_SECTOR_SIZE - 1))
#define OFFSET_OF(a) (a & (SFLASH_SECTOR_SIZE - 1))
Adafruit_SPIFlashBase * QSPIFlash::_flashBase = nullptr;
uint8_t QSPIFlash::_buf[SFLASH_SECTOR_SIZE];
uint32_t QSPIFlash::_addr = INVALID_ADDR;
void QSPIFlash::begin() {
if (_flashBase) return;
_flashBase = new Adafruit_SPIFlashBase(new Adafruit_FlashTransport_QSPI());
_flashBase->begin(nullptr);
}
size_t QSPIFlash::size() {
return _flashBase->size();
}
uint8_t QSPIFlash::readByte(const uint32_t address) {
if (SECTOR_OF(address) == _addr) return _buf[OFFSET_OF(address)];
return _flashBase->read8(address);
}
void QSPIFlash::writeByte(const uint32_t address, const uint8_t value) {
uint32_t const sector_addr = SECTOR_OF(address);
// Page changes, flush old and update new cache
if (sector_addr != _addr) {
flush();
_addr = sector_addr;
// read a whole page from flash
_flashBase->readBuffer(sector_addr, _buf, SFLASH_SECTOR_SIZE);
}
_buf[OFFSET_OF(address)] = value;
}
void QSPIFlash::flush() {
if (_addr == INVALID_ADDR) return;
_flashBase->eraseSector(_addr / SFLASH_SECTOR_SIZE);
_flashBase->writeBuffer(_addr, _buf, SFLASH_SECTOR_SIZE);
_addr = INVALID_ADDR;
}
#endif // QSPI_EEPROM

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Marlin/src/HAL/SAMD21/QSPIFlash.h
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/**
* @file QSPIFlash.h
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Ha Thach and Dean Miller for Adafruit Industries LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* Derived from Adafruit_SPIFlash class with no SdFat references
*/
#pragma once
#include <Adafruit_SPIFlashBase.h>
// This class extends Adafruit_SPIFlashBase by adding caching support.
//
// This class will use 4096 Bytes of RAM as a block cache.
class QSPIFlash {
public:
static void begin();
static size_t size();
static uint8_t readByte(const uint32_t address);
static void writeByte(const uint32_t address, const uint8_t v);
static void flush();
private:
static Adafruit_SPIFlashBase * _flashBase;
static uint8_t _buf[SFLASH_SECTOR_SIZE];
static uint32_t _addr;
};
extern QSPIFlash qspi;

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Marlin/src/HAL/SAMD21/SAMD21.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#define SYNC(sc) while (sc) { \
asm(""); \
}
// Get SAMD port/pin from specified arduino pin
#define GET_SAMD_PORT(P) _GET_SAMD_PORT(PIN_TO_SAMD_PIN(P))
#define GET_SAMD_PIN(P) _GET_SAMD_PIN(PIN_TO_SAMD_PIN(P))
// Get external interrupt line associated to specified arduino pin
#define PIN_TO_EILINE(P) _SAMDPORTPIN_TO_EILINE(GET_SAMD_PORT(P), GET_SAMD_PIN(P))
// Get adc/ain associated to specified arduino pin
#define PIN_TO_ADC(P) (ANAPIN_TO_ADCAIN(P) >> 8)
// Private defines
#define PIN_TO_SAMD_PIN(P) DIO##P##_PIN
#define _GET_SAMD_PORT(P) ((P) >> 5)
#define _GET_SAMD_PIN(P) ((P) & 0x1F)
// Get external interrupt line
#define _SAMDPORTPIN_TO_EILINE(P,B) ((P == 0 && WITHIN(B, 0, 31) && B != 26 && B != 28 && B != 29) ? (B) & 0xF \
: (P == 1 && (WITHIN(B, 0, 25) || WITHIN(B, 30, 31))) ? (B) & 0xF \
: (P == 1 && WITHIN(B, 26, 29)) ? 12 + (B) - 26 \
: (P == 2 && (WITHIN(B, 0, 6) || WITHIN(B, 10, 31)) && B != 29) ? (B) & 0xF \
: (P == 2 && B == 7) ? 9 \
: (P == 3 && WITHIN(B, 0, 1)) ? (B) \
: (P == 3 && WITHIN(B, 8, 12)) ? 3 + (B) - 8 \
: (P == 3 && WITHIN(B, 20, 21)) ? 10 + (B) - 20 \
: -1)
#define A2_AIN 3
#define A3_AIN 4
#define A4_AIN 5
#define PIN_TO_AIN(P) A##P##_AIN
#define AIN_TO_RESULT(P) ( (P - HAL_ADC_AIN_START == HAL_ADC_AIN_NUM_SENSORS-1) ? 0 : (P - HAL_ADC_AIN_START + 1) )

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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
/**
* This comes from Arduino library which at the moment is buggy and uncompilable
*/
#ifdef __SAMD21__
#include "../../inc/MarlinConfig.h"
#if HAS_SERVOS
#include "../shared/servo.h"
#include "../shared/servo_private.h"
#include "SAMD21.h"
#define __TC_GCLK_ID(t) TC##t##_GCLK_ID
#define _TC_GCLK_ID(t) __TC_GCLK_ID(t)
#define TC_GCLK_ID _TC_GCLK_ID(SERVO_TC)
#define _TC_PRESCALER(d) TC_CTRLA_PRESCALER_DIV##d##_Val
#define TC_PRESCALER(d) _TC_PRESCALER(d)
#define __SERVO_IRQn(t) TC##t##_IRQn
#define _SERVO_IRQn(t) __SERVO_IRQn(t)
#define SERVO_IRQn _SERVO_IRQn(SERVO_TC)
#define HAL_SERVO_TIMER_ISR() TC_HANDLER(SERVO_TC)
#define TIMER_TCCHANNEL(t) ((t) & 1)
#define TC_COUNTER_START_VAL 0xFFFF
static volatile int8_t currentServoIndex[_Nbr_16timers]; // index for the servo being pulsed for each timer (or -1 if refresh interval)
FORCE_INLINE static uint16_t getTimerCount() {
Tcc * const tc = timer_config[SERVO_TC].pTcc;
tc->CTRLBSET.reg = TCC_CTRLBCLR_CMD_READSYNC;
SYNC(tc->STATUS.reg & TC_STATUS_SYNCBUSY);
return tc->COUNT.bit.COUNT;
}
// ----------------------------
// Interrupt handler for the TC
// ----------------------------
HAL_SERVO_TIMER_ISR() {
Tcc * const tc = timer_config[SERVO_TC].pTcc;
const timer16_Sequence_t timer =
#ifndef _useTimer1
_timer2
#elif !defined(_useTimer2)
_timer1
#else
(tc->INTFLAG.reg & tc->INTENSET.reg & TC_INTFLAG_MC0) ? _timer1 : _timer2
#endif
;
const uint8_t tcChannel = TIMER_TCCHANNEL(timer);
int8_t cho = currentServoIndex[timer]; // Handle the prior servo first
if (cho < 0) { // Servo -1 indicates the refresh interval completed...
#if defined(_useTimer1) && defined(_useTimer2)
if (currentServoIndex[timer ^ 1] >= 0) {
// Wait for both channels
// Clear the interrupt
tc->INTFLAG.reg = (tcChannel == 0) ? TC_INTFLAG_MC0 : TC_INTFLAG_MC1;
return;
}
#endif
tc->COUNT.reg = TC_COUNTER_START_VAL; // ...so reset the timer
SYNC(tc->STATUS.reg & TC_STATUS_SYNCBUSY);
}
else if (SERVO_INDEX(timer, cho) < ServoCount) // prior channel handled?
digitalWrite(SERVO(timer, cho).Pin.nbr, LOW); // pulse the prior channel LOW
currentServoIndex[timer] = ++cho; // go to the next channel (or 0)
if (cho < SERVOS_PER_TIMER && SERVO_INDEX(timer, cho) < ServoCount) {
if (SERVO(timer, cho).Pin.isActive) // activated?
digitalWrite(SERVO(timer, cho).Pin.nbr, HIGH); // yes: pulse HIGH
tc->CC[tcChannel].reg = getTimerCount() - (uint16_t)SERVO(timer, cho).ticks;
}
else {
// finished all channels so wait for the refresh period to expire before starting over
currentServoIndex[timer] = -1; // reset the timer COUNT.reg on the next call
const uint16_t cval = getTimerCount() - 256 / (SERVO_TIMER_PRESCALER), // allow 256 cycles to ensure the next CV not missed
ival = (TC_COUNTER_START_VAL) - (uint16_t)usToTicks(REFRESH_INTERVAL); // at least REFRESH_INTERVAL has elapsed
tc->CC[tcChannel].reg = min(cval, ival);
}
if (tcChannel == 0) {
SYNC(tc->SYNCBUSY.bit.CC0);
tc->INTFLAG.reg = TC_INTFLAG_MC0; // Clear the interrupt
}
else {
SYNC(tc->SYNCBUSY.bit.CC1);
tc->INTFLAG.reg = TC_INTFLAG_MC1; // Clear the interrupt
}
}
void initISR(const timer16_Sequence_t timer) {
Tcc * const tc = timer_config[SERVO_TC].pTcc;
const uint8_t tcChannel = TIMER_TCCHANNEL(timer);
static bool initialized = false; // Servo TC has been initialized
if (!initialized) {
NVIC_DisableIRQ(SERVO_IRQn);
// Disable the timer
tc->CTRLA.bit.ENABLE = false;
SYNC(tc->STATUS.reg & TC_STATUS_SYNCBUSY);
// Select GCLK0 as timer/counter input clock source
GCLK->CLKCTRL.reg =(GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | GCLK_CLKCTRL_ID(TCC0_GCLK_ID));
SYNC (GCLK->STATUS.bit.SYNCBUSY);
// Reset the timer
tc->CTRLA.bit.SWRST = true;
SYNC(tc->CTRLA.bit.SWRST);
// Set timer counter mode to 16 bits
tc->CTRLA.reg = TC_CTRLA_MODE_COUNT16;
// Set timer counter mode as normal PWM
tc->WAVE.bit.WAVEGEN = TCC_WAVE_WAVEGEN_NPWM_Val;
// Set the prescaler factor
tc->CTRLA.bit.PRESCALER = TC_PRESCALER(SERVO_TIMER_PRESCALER);
// Count down
tc->CTRLBSET.reg = TCC_CTRLBCLR_DIR;
SYNC(tc->SYNCBUSY.bit.CTRLB);
// Reset all servo indexes
memset((void *)currentServoIndex, 0xFF, sizeof(currentServoIndex));
// Configure interrupt request
NVIC_ClearPendingIRQ(SERVO_IRQn);
NVIC_SetPriority(SERVO_IRQn, 5);
NVIC_EnableIRQ(SERVO_IRQn);
initialized = true;
}
if (!tc->CTRLA.bit.ENABLE) {
// Reset the timer counter
tc->COUNT.reg = TC_COUNTER_START_VAL;
SYNC(tc->STATUS.reg & TC_STATUS_SYNCBUSY);
// Enable the timer and start it
tc->CTRLA.bit.ENABLE = true;
SYNC(tc->STATUS.reg & TC_STATUS_SYNCBUSY);
}
// First interrupt request after 1 ms
tc->CC[tcChannel].reg = getTimerCount() - (uint16_t)usToTicks(1000UL);
if (tcChannel == 0 ) {
SYNC(tc->SYNCBUSY.bit.CC0);
// Clear pending match interrupt
tc->INTFLAG.reg = TC_INTENSET_MC0;
// Enable the match channel interrupt request
tc->INTENSET.reg = TC_INTENSET_MC0;
}
else {
SYNC(tc->SYNCBUSY.bit.CC1);
// Clear pending match interrupt
tc->INTFLAG.reg = TC_INTENSET_MC1;
// Enable the match channel interrupt request
tc->INTENSET.reg = TC_INTENSET_MC1;
}
}
void finISR(const timer16_Sequence_t timer_index) {
Tcc * const tc = timer_config[SERVO_TC].pTcc;
const uint8_t tcChannel = TIMER_TCCHANNEL(timer_index);
// Disable the match channel interrupt request
tc->INTENCLR.reg = (tcChannel == 0) ? TC_INTENCLR_MC0 : TC_INTENCLR_MC1;
if (true
#if defined(_useTimer1) && defined(_useTimer2)
&& (tc->INTENCLR.reg & (TC_INTENCLR_MC0|TC_INTENCLR_MC1)) == 0
#endif
) {
// Disable the timer if not used
tc->CTRLA.bit.ENABLE = false;
SYNC(tc->STATUS.reg & TC_STATUS_SYNCBUSY);
}
}
#endif // HAS_SERVOS
#endif // __SAMD21__

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Marlin/src/HAL/SAMD21/ServoTimers.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#define _useTimer1
#define _useTimer2
#define TRIM_DURATION 5 // compensation ticks to trim adjust for digitalWrite delays
#define SERVO_TIMER_PRESCALER 64 // timer prescaler factor to 64 (avoid overflowing 16-bit clock counter, at 120MHz this is 1831 ticks per millisecond
#define SERVO_TC 3
typedef enum {
#ifdef _useTimer1
_timer1,
#endif
#ifdef _useTimer2
_timer2,
#endif
_Nbr_16timers
} timer16_Sequence_t;

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Marlin/src/HAL/SAMD21/eeprom_flash.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#ifdef __SAMD21__
#include "../../inc/MarlinConfig.h"
#if ENABLED(FLASH_EEPROM_EMULATION)
#define TOTAL_FLASH_SIZE (MARLIN_EEPROM_SIZE+255)/256*256
/* reserve flash memory */
static const uint8_t flashdata[TOTAL_FLASH_SIZE] __attribute__((__aligned__(256))) { }; \
#include "../shared/eeprom_api.h"
size_t PersistentStore::capacity() {
return MARLIN_EEPROM_SIZE;
/* const uint8_t psz = NVMCTRL->SEESTAT.bit.PSZ,
sblk = NVMCTRL->SEESTAT.bit.SBLK;
return (!psz && !sblk) ? 0
: (psz <= 2) ? (0x200 << psz)
: (sblk == 1 || psz == 3) ? 4096
: (sblk == 2 || psz == 4) ? 8192
: (sblk <= 4 || psz == 5) ? 16384
: (sblk >= 9 && psz == 7) ? 65536
: 32768;*/
}
uint32_t PAGE_SIZE;
uint32_t ROW_SIZE;
bool hasWritten = false;
uint8_t * buffer;
void _erase(const volatile void *flash_ptr) {
NVMCTRL->ADDR.reg = ((uint32_t)flash_ptr) / 2;
NVMCTRL->CTRLA.reg = NVMCTRL_CTRLA_CMDEX_KEY | NVMCTRL_CTRLA_CMD_ER;
while (!NVMCTRL->INTFLAG.bit.READY) { }
}
void erase(const volatile void *flash_ptr, uint32_t size) {
const uint8_t *ptr = (const uint8_t *)flash_ptr;
while (size > ROW_SIZE) {
_erase(ptr);
ptr += ROW_SIZE;
size -= ROW_SIZE;
}
_erase(ptr);
}
bool PersistentStore::access_start() {
/* clear page buffer*/
NVMCTRL->CTRLA.reg = NVMCTRL_CTRLA_CMDEX_KEY | NVMCTRL_CTRLA_CMD_PBC;
while (NVMCTRL->INTFLAG.bit.READY == 0) { }
PAGE_SIZE = pow(2,3 + NVMCTRL->PARAM.bit.PSZ);
ROW_SIZE= PAGE_SIZE * 4;
/*NVMCTRL->SEECFG.reg = NVMCTRL_SEECFG_WMODE_BUFFERED; // Buffered mode and segment reallocation active
if (NVMCTRL->SEESTAT.bit.RLOCK)
NVMCTRL_CMD(NVMCTRL_CTRLB_CMD_USEE); */ // Unlock E2P data write access
// erase(&flashdata[0], TOTAL_FLASH_SIZE);
return true;
}
bool PersistentStore::access_finish() {
if (hasWritten) {
erase(&flashdata[0], TOTAL_FLASH_SIZE);
NVMCTRL->CTRLA.reg = NVMCTRL_CTRLA_CMDEX_KEY | NVMCTRL_CTRLA_CMD_PBC;
while (NVMCTRL->INTFLAG.bit.READY == 0) { }
NVMCTRL->CTRLB.bit.MANW = 0;
volatile uint32_t *dst_addr = (volatile uint32_t *) &flashdata;
uint32_t *pointer = (uint32_t *) buffer;
for (uint32_t i = 0; i < TOTAL_FLASH_SIZE; i+=4) {
*dst_addr = (uint32_t) *pointer;
pointer++;
dst_addr ++;
}
// Execute "WP" Write Page
NVMCTRL->CTRLA.reg = NVMCTRL_CTRLA_CMDEX_KEY | NVMCTRL_CTRLA_CMD_WP;
while (NVMCTRL->INTFLAG.bit.READY == 0) { }
free(buffer);
hasWritten = false;
}
return true;
}
bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
if (!hasWritten) {
// init temp buffer
buffer = (uint8_t *) malloc(MARLIN_EEPROM_SIZE);
hasWritten=true;
}
memcpy(buffer+pos,value,size);
pos += size;
return false;
}
bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
volatile uint8_t *dst_addr = (volatile uint8_t *) &flashdata;
dst_addr += pos;
memcpy(value,(const void *) dst_addr,size);
pos += size;
return false;
}
#endif // FLASH_EEPROM_EMULATION
#endif // __SAMD21__

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Marlin/src/HAL/SAMD21/eeprom_qspi.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#ifdef __SAMD21__
#include "../../inc/MarlinConfig.h"
#if ENABLED(QSPI_EEPROM)
#error "QSPI_EEPROM emulation Not implemented on SAMD21"
#include "../shared/eeprom_api.h"
#include "QSPIFlash.h"
static bool initialized;
size_t PersistentStore::capacity() { return qspi.size(); }
bool PersistentStore::access_start() {
if (!initialized) {
qspi.begin();
initialized = true;
}
return true;
}
bool PersistentStore::access_finish() {
qspi.flush();
return true;
}
bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
while (size--) {
const uint8_t v = *value;
qspi.writeByte(pos, v);
crc16(crc, &v, 1);
pos++;
value++;
}
return false;
}
bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
while (size--) {
uint8_t c = qspi.readByte(pos);
if (writing) *value = c;
crc16(crc, &c, 1);
pos++;
value++;
}
return false;
}
#endif // QSPI_EEPROM
#endif // __SAMD21__

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Marlin/src/HAL/SAMD21/eeprom_wired.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#ifdef __SAMD21__
#include "../../inc/MarlinConfig.h"
#if USE_WIRED_EEPROM
#error "USE_WIRED_EEPROM emulation Not implemented on SAMD21"
/**
* PersistentStore for Arduino-style EEPROM interface
* with simple implementations supplied by Marlin.
*/
#include "../shared/eeprom_if.h"
#include "../shared/eeprom_api.h"
#ifndef MARLIN_EEPROM_SIZE
#error "MARLIN_EEPROM_SIZE is required for I2C / SPI EEPROM."
#endif
size_t PersistentStore::capacity() { return MARLIN_EEPROM_SIZE; }
bool PersistentStore::access_start() { eeprom_init(); return true; }
bool PersistentStore::access_finish() { return true; }
bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
uint16_t written = 0;
while (size--) {
const uint8_t v = *value;
uint8_t * const p = (uint8_t * const)pos;
if (v != eeprom_read_byte(p)) { // EEPROM has only ~100,000 write cycles, so only write bytes that have changed!
eeprom_write_byte(p, v);
if (++written & 0x7F) delay(2); else safe_delay(2); // Avoid triggering watchdog during long EEPROM writes
if (eeprom_read_byte(p) != v) {
SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
return true;
}
}
crc16(crc, &v, 1);
pos++;
value++;
}
return false;
}
bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
while (size--) {
uint8_t c = eeprom_read_byte((uint8_t*)pos);
if (writing) *value = c;
crc16(crc, &c, 1);
pos++;
value++;
}
return false;
}
#endif // USE_WIRED_EEPROM
#endif // __SAMD21__

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Marlin/src/HAL/SAMD21/endstop_interrupts.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
/**
* Endstop interrupts for ATMEL SAMD21 based targets.
*
* On SAMD21, all pins support external interrupt capability.
* Any pin can be used for external interrupts, but there are some restrictions.
* At most 16 different external interrupts can be used at one time.
* Further, you can’t just pick any 16 pins to use. This is because every pin on the SAMD21
* connects to what is called an EXTINT line, and only one pin per EXTINT line can be used for external
* interrupts at a time
*/
/**
* Endstop Interrupts
*
* Without endstop interrupts the endstop pins must be polled continually in
* the temperature-ISR via endstops.update(), most of the time finding no change.
* With this feature endstops.update() is called only when we know that at
* least one endstop has changed state, saving valuable CPU cycles.
*
* This feature only works when all used endstop pins can generate an 'external interrupt'.
*
* Test whether pins issue interrupts on your board by flashing 'pin_interrupt_test.ino'.
* (Located in Marlin/buildroot/share/pin_interrupt_test/pin_interrupt_test.ino)
*/
#include "../../module/endstops.h"
#define MATCH_EILINE(P1,P2) (P1 != P2 && PIN_TO_EILINE(P1) == PIN_TO_EILINE(P2))
#define MATCH_X_MAX_EILINE(P) TERN0(HAS_X_MAX, DEFER4(MATCH_EILINE)(P, X_MAX_PIN))
#define MATCH_X_MIN_EILINE(P) TERN0(HAS_X_MIN, DEFER4(MATCH_EILINE)(P, X_MIN_PIN))
#define MATCH_Y_MAX_EILINE(P) TERN0(HAS_Y_MAX, DEFER4(MATCH_EILINE)(P, Y_MAX_PIN))
#define MATCH_Y_MIN_EILINE(P) TERN0(HAS_Y_MIN, DEFER4(MATCH_EILINE)(P, Y_MIN_PIN))
#define MATCH_Z_MAX_EILINE(P) TERN0(HAS_Z_MAX, DEFER4(MATCH_EILINE)(P, Z_MAX_PIN))
#define MATCH_Z_MIN_EILINE(P) TERN0(HAS_Z_MIN, DEFER4(MATCH_EILINE)(P, Z_MIN_PIN))
#define MATCH_I_MAX_EILINE(P) TERN0(HAS_I_MAX, DEFER4(MATCH_EILINE)(P, I_MAX_PIN))
#define MATCH_I_MIN_EILINE(P) TERN0(HAS_I_MIN, DEFER4(MATCH_EILINE)(P, I_MIN_PIN))
#define MATCH_J_MAX_EILINE(P) TERN0(HAS_J_MAX, DEFER4(MATCH_EILINE)(P, J_MAX_PIN))
#define MATCH_J_MIN_EILINE(P) TERN0(HAS_J_MIN, DEFER4(MATCH_EILINE)(P, J_MIN_PIN))
#define MATCH_K_MAX_EILINE(P) TERN0(HAS_K_MAX, DEFER4(MATCH_EILINE)(P, K_MAX_PIN))
#define MATCH_K_MIN_EILINE(P) TERN0(HAS_K_MIN, DEFER4(MATCH_EILINE)(P, K_MIN_PIN))
#define MATCH_U_MAX_EILINE(P) TERN0(HAS_U_MAX, DEFER4(MATCH_EILINE)(P, U_MAX_PIN))
#define MATCH_U_MIN_EILINE(P) TERN0(HAS_U_MIN, DEFER4(MATCH_EILINE)(P, U_MIN_PIN))
#define MATCH_V_MAX_EILINE(P) TERN0(HAS_V_MAX, DEFER4(MATCH_EILINE)(P, V_MAX_PIN))
#define MATCH_V_MIN_EILINE(P) TERN0(HAS_V_MIN, DEFER4(MATCH_EILINE)(P, V_MIN_PIN))
#define MATCH_W_MAX_EILINE(P) TERN0(HAS_W_MAX, DEFER4(MATCH_EILINE)(P, W_MAX_PIN))
#define MATCH_W_MIN_EILINE(P) TERN0(HAS_W_MIN, DEFER4(MATCH_EILINE)(P, W_MIN_PIN))
#define MATCH_Z2_MAX_EILINE(P) TERN0(HAS_Z2_MAX, DEFER4(MATCH_EILINE)(P, Z2_MAX_PIN))
#define MATCH_Z2_MIN_EILINE(P) TERN0(HAS_Z2_MIN, DEFER4(MATCH_EILINE)(P, Z2_MIN_PIN))
#define MATCH_Z3_MAX_EILINE(P) TERN0(HAS_Z3_MAX, DEFER4(MATCH_EILINE)(P, Z3_MAX_PIN))
#define MATCH_Z3_MIN_EILINE(P) TERN0(HAS_Z3_MIN, DEFER4(MATCH_EILINE)(P, Z3_MIN_PIN))
#define MATCH_Z4_MAX_EILINE(P) TERN0(HAS_Z4_MAX, DEFER4(MATCH_EILINE)(P, Z4_MAX_PIN))
#define MATCH_Z4_MIN_EILINE(P) TERN0(HAS_Z4_MIN, DEFER4(MATCH_EILINE)(P, Z4_MIN_PIN))
#define MATCH_Z_MIN_PROBE_EILINE(P) TERN0(HAS_Z_MIN_PROBE_PIN, DEFER4(MATCH_EILINE)(P, Z_MIN_PROBE_PIN))
#define AVAILABLE_EILINE(P) ( PIN_TO_EILINE(P) != -1 \
&& !MATCH_X_MAX_EILINE(P) && !MATCH_X_MIN_EILINE(P) \
&& !MATCH_Y_MAX_EILINE(P) && !MATCH_Y_MIN_EILINE(P) \
&& !MATCH_Z_MAX_EILINE(P) && !MATCH_Z_MIN_EILINE(P) \
&& !MATCH_I_MAX_EILINE(P) && !MATCH_I_MIN_EILINE(P) \
&& !MATCH_J_MAX_EILINE(P) && !MATCH_J_MIN_EILINE(P) \
&& !MATCH_K_MAX_EILINE(P) && !MATCH_K_MIN_EILINE(P) \
&& !MATCH_U_MAX_EILINE(P) && !MATCH_U_MIN_EILINE(P) \
&& !MATCH_V_MAX_EILINE(P) && !MATCH_V_MIN_EILINE(P) \
&& !MATCH_W_MAX_EILINE(P) && !MATCH_W_MIN_EILINE(P) \
&& !MATCH_Z2_MAX_EILINE(P) && !MATCH_Z2_MIN_EILINE(P) \
&& !MATCH_Z3_MAX_EILINE(P) && !MATCH_Z3_MIN_EILINE(P) \
&& !MATCH_Z4_MAX_EILINE(P) && !MATCH_Z4_MIN_EILINE(P) \
&& !MATCH_Z_MIN_PROBE_EILINE(P) )
// One ISR for all EXT-Interrupts
void endstop_ISR() { endstops.update(); }
void setup_endstop_interrupts() {
#define _ATTACH(P) attachInterrupt(P, endstop_ISR, CHANGE)
#if HAS_X_MAX
#if !AVAILABLE_EILINE(X_MAX_PIN)
#error "X_MAX_PIN has no EXTINT line available."
#endif
_ATTACH(X_MAX_PIN);
#endif
#if HAS_X_MIN
#if !AVAILABLE_EILINE(X_MIN_PIN)
#error "X_MIN_PIN has no EXTINT line available."
#endif
_ATTACH(X_MIN_PIN);
#endif
#if HAS_Y_MAX
#if !AVAILABLE_EILINE(Y_MAX_PIN)
#error "Y_MAX_PIN has no EXTINT line available."
#endif
_ATTACH(Y_MAX_PIN);
#endif
#if HAS_Y_MIN
#if !AVAILABLE_EILINE(Y_MIN_PIN)
#error "Y_MIN_PIN has no EXTINT line available."
#endif
_ATTACH(Y_MIN_PIN);
#endif
#if HAS_Z_MAX
#if !AVAILABLE_EILINE(Z_MAX_PIN)
#error "Z_MAX_PIN has no EXTINT line available."
#endif
_ATTACH(Z_MAX_PIN);
#endif
#if HAS_Z_MIN
#if !AVAILABLE_EILINE(Z_MIN_PIN)
#error "Z_MIN_PIN has no EXTINT line available."
#endif
_ATTACH(Z_MIN_PIN);
#endif
#if HAS_Z2_MAX
#if !AVAILABLE_EILINE(Z2_MAX_PIN)
#error "Z2_MAX_PIN has no EXTINT line available."
#endif
_ATTACH(Z2_MAX_PIN);
#endif
#if HAS_Z2_MIN
#if !AVAILABLE_EILINE(Z2_MIN_PIN)
#error "Z2_MIN_PIN has no EXTINT line available."
#endif
_ATTACH(Z2_MIN_PIN);
#endif
#if HAS_Z3_MAX
#if !AVAILABLE_EILINE(Z3_MAX_PIN)
#error "Z3_MAX_PIN has no EXTINT line available."
#endif
_ATTACH(Z3_MAX_PIN);
#endif
#if HAS_Z3_MIN
#if !AVAILABLE_EILINE(Z3_MIN_PIN)
#error "Z3_MIN_PIN has no EXTINT line available."
#endif
_ATTACH(Z3_MIN_PIN);
#endif
#if HAS_Z4_MAX
#if !AVAILABLE_EILINE(Z4_MAX_PIN)
#error "Z4_MAX_PIN has no EXTINT line available."
#endif
_ATTACH(Z4_MAX_PIN);
#endif
#if HAS_Z4_MIN
#if !AVAILABLE_EILINE(Z4_MIN_PIN)
#error "Z4_MIN_PIN has no EXTINT line available."
#endif
_ATTACH(Z4_MIN_PIN);
#endif
#if HAS_Z_MIN_PROBE_PIN
#if !AVAILABLE_EILINE(Z_MIN_PROBE_PIN)
#error "Z_MIN_PROBE_PIN has no EXTINT line available."
#endif
_ATTACH(Z_MIN_PROBE_PIN);
#endif
#if HAS_I_MAX
#if !AVAILABLE_EILINE(I_MAX_PIN)
#error "I_MAX_PIN has no EXTINT line available."
#endif
attachInterrupt(I_MAX_PIN, endstop_ISR, CHANGE);
#endif
#if HAS_I_MIN
#if !AVAILABLE_EILINE(I_MIN_PIN)
#error "I_MIN_PIN has no EXTINT line available."
#endif
attachInterrupt(I_MIN_PIN, endstop_ISR, CHANGE);
#endif
#if HAS_J_MAX
#if !AVAILABLE_EILINE(J_MAX_PIN)
#error "J_MAX_PIN has no EXTINT line available."
#endif
attachInterrupt(J_MAX_PIN, endstop_ISR, CHANGE);
#endif
#if HAS_J_MIN
#if !AVAILABLE_EILINE(J_MIN_PIN)
#error "J_MIN_PIN has no EXTINT line available."
#endif
attachInterrupt(J_MIN_PIN, endstop_ISR, CHANGE);
#endif
#if HAS_K_MAX
#if !AVAILABLE_EILINE(K_MAX_PIN)
#error "K_MAX_PIN has no EXTINT line available."
#endif
attachInterrupt(K_MAX_PIN, endstop_ISR, CHANGE);
#endif
#if HAS_K_MIN
#if !AVAILABLE_EILINE(K_MIN_PIN)
#error "K_MIN_PIN has no EXTINT line available."
#endif
attachInterrupt(K_MIN_PIN, endstop_ISR, CHANGE);
#endif
#if HAS_U_MAX
#if !AVAILABLE_EILINE(U_MAX_PIN)
#error "U_MAX_PIN has no EXTINT line available."
#endif
attachInterrupt(U_MAX_PIN, endstop_ISR, CHANGE);
#endif
#if HAS_U_MIN
#if !AVAILABLE_EILINE(U_MIN_PIN)
#error "U_MIN_PIN has no EXTINT line available."
#endif
attachInterrupt(U_MIN_PIN, endstop_ISR, CHANGE);
#endif
#if HAS_V_MAX
#if !AVAILABLE_EILINE(V_MAX_PIN)
#error "V_MAX_PIN has no EXTINT line available."
#endif
attachInterrupt(V_MAX_PIN, endstop_ISR, CHANGE);
#endif
#if HAS_V_MIN
#if !AVAILABLE_EILINE(V_MIN_PIN)
#error "V_MIN_PIN has no EXTINT line available."
#endif
attachInterrupt(V_MIN_PIN, endstop_ISR, CHANGE);
#endif
#if HAS_W_MAX
#if !AVAILABLE_EILINE(W_MAX_PIN)
#error "W_MAX_PIN has no EXTINT line available."
#endif
attachInterrupt(W_MAX_PIN, endstop_ISR, CHANGE);
#endif
#if HAS_W_MIN
#if !AVAILABLE_EILINE(W_MIN_PIN)
#error "W_MIN_PIN has no EXTINT line available."
#endif
attachInterrupt(W_MIN_PIN, endstop_ISR, CHANGE);
#endif
}

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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
/**
* Fast IO functions for SAMD21
*/
#include "SAMD21.h"
/**
* Utility functions
*/
#ifndef MASK
#define MASK(PIN) _BV(PIN)
#endif
/**
* Magic I/O routines
*
* Now you can simply SET_OUTPUT(IO); WRITE(IO, HIGH); WRITE(IO, LOW);
*/
// Read a pin
#define READ(IO) ((PORT->Group[(EPortType)GET_SAMD_PORT(IO)].IN.reg & MASK(GET_SAMD_PIN(IO))) != 0)
// Write to a pin
#define WRITE(IO,V) do{ \
const EPortType port = (EPortType)GET_SAMD_PORT(IO); \
const uint32_t mask = MASK(GET_SAMD_PIN(IO)); \
\
if (V) PORT->Group[port].OUTSET.reg = mask; \
else PORT->Group[port].OUTCLR.reg = mask; \
}while(0)
// Toggle a pin
#define TOGGLE(IO) PORT->Group[(EPortType)GET_SAMD_PORT(IO)].OUTTGL.reg = MASK(GET_SAMD_PIN(IO));
// Set pin as input
#define SET_INPUT(IO) do{ \
const EPortType port = (EPortType)GET_SAMD_PORT(IO); \
const uint32_t pin = GET_SAMD_PIN(IO); \
\
PORT->Group[port].PINCFG[pin].reg = (uint8_t)(PORT_PINCFG_INEN); \
PORT->Group[port].DIRCLR.reg = MASK(pin); \
}while(0)
// Set pin as input with pullup
#define SET_INPUT_PULLUP(IO) do{ \
const EPortType port = (EPortType)GET_SAMD_PORT(IO); \
const uint32_t pin = GET_SAMD_PIN(IO); \
const uint32_t mask = MASK(pin); \
\
PORT->Group[port].PINCFG[pin].reg = (uint8_t)(PORT_PINCFG_INEN | PORT_PINCFG_PULLEN); \
PORT->Group[port].DIRCLR.reg = mask; \
PORT->Group[port].OUTSET.reg = mask; \
}while(0)
// Set pin as input with pulldown
#define SET_INPUT_PULLDOWN(IO) do{ \
const EPortType port = (EPortType)GET_SAMD_PORT(IO); \
const uint32_t pin = GET_SAMD_PIN(IO); \
const uint32_t mask = MASK(pin); \
\
PORT->Group[port].PINCFG[pin].reg = (uint8_t)(PORT_PINCFG_INEN | PORT_PINCFG_PULLEN); \
PORT->Group[port].DIRCLR.reg = mask; \
PORT->Group[port].OUTCLR.reg = mask; \
}while(0)
// Set pin as output (push pull)
#define SET_OUTPUT(IO) do{ \
const EPortType port = (EPortType)GET_SAMD_PORT(IO); \
const uint32_t pin = GET_SAMD_PIN(IO); \
\
PORT->Group[port].DIRSET.reg = MASK(pin); \
PORT->Group[port].PINCFG[pin].reg = 0; \
}while(0)
// Set pin as output (open drain)
#define SET_OUTPUT_OD(IO) do{ \
const EPortType port = (EPortType)GET_SAMD_PORT(IO); \
const uint32_t pin = GET_SAMD_PIN(IO); \
\
PORT->Group[port].PINCFG[pin].reg = (uint8_t)(PORT_PINCFG_PULLEN); \
PORT->Group[port].DIRCLR.reg = MASK(pin); \
}while(0)
// Set pin as PWM (push pull)
#define SET_PWM SET_OUTPUT
// Set pin as PWM (open drain)
#define SET_PWM_OD SET_OUTPUT_OD
// check if pin is an output
#define IS_OUTPUT(IO) ((PORT->Group[(EPortType)GET_SAMD_PORT(IO)].DIR.reg & MASK(GET_SAMD_PIN(IO))) \
|| (PORT->Group[(EPortType)GET_SAMD_PORT(IO)].PINCFG[GET_SAMD_PIN(IO)].reg & (PORT_PINCFG_INEN | PORT_PINCFG_PULLEN)) == PORT_PINCFG_PULLEN)
// check if pin is an input
#define IS_INPUT(IO) !IS_OUTPUT(IO)
// Shorthand
#define OUT_WRITE(IO,V) do{ SET_OUTPUT(IO); WRITE(IO,V); }while(0)
#define OUT_WRITE_OD(IO,V) do{ SET_OUTPUT_OD(IO); WRITE(IO,V); }while(0)
// digitalRead/Write wrappers
#define extDigitalRead(IO) digitalRead(IO)
#define extDigitalWrite(IO,V) digitalWrite(IO,V)
/**
* Ports and functions
* Added as necessary or if I feel like it- not a comprehensive list!
*/
/*
* Some of these share the same source and so can't be used in the same time
*/
#define PWM_PIN(P) (WITHIN(P, 2, 13) || WITHIN(P, 22, 23) || WITHIN(P, 44, 45) || P == 48)
// Return fulfilled ADCx->INPUTCTRL.reg
#define PIN_TO_INPUTCTRL(P) ( (P == 0) ? ADC_INPUTCTRL_MUXPOS_PIN0 \
: ((P) == 1) ? ADC_INPUTCTRL_MUXPOS_PIN1 \
: ((P) == 2) ? ADC_INPUTCTRL_MUXPOS_PIN3 \
: ((P) == 3) ? ADC_INPUTCTRL_MUXPOS_PIN4 \
: ((P) == 4) ? ADC_INPUTCTRL_MUXPOS_PIN5 \
: ((P) == 5) ? ADC_INPUTCTRL_MUXPOS_PIN5 \
: ((P) == 6) ? ADC_INPUTCTRL_MUXPOS_PIN6 \
: ((P) == 7) ? ADC_INPUTCTRL_MUXPOS_PIN7 \
: ((P) == 8) ? ADC_INPUTCTRL_MUXPOS_PIN8 \
: ((P) == 9) ? ADC_INPUTCTRL_MUXPOS_PIN9 \
: ((P) == 10) ? ADC_INPUTCTRL_MUXPOS_PIN10 \
: ((P) == 11) ? ADC_INPUTCTRL_MUXPOS_PIN11 \
: ((P) == 12) ? ADC_INPUTCTRL_MUXPOS_PIN12 \
: ((P) == 13) ? ADC_INPUTCTRL_MUXPOS_PIN13 \
: ((P) == 14) ? ADC_INPUTCTRL_MUXPOS_PIN14 \
: ADC_INPUTCTRL_MUXPOS_PIN15)
#define digitalPinToAnalogInput(P) (WITHIN(P, 67, 74) ? (P) - 67 : WITHIN(P, 54, 61) ? 8 + (P) - 54 : WITHIN(P, 12, 13) ? 16 + (P) - 12 : P == 9 ? 18 : -1)
/**
* pins
*/
// PORTA
#define DIO28_PIN PIN_PA02 // A0
#define DIO56_PIN PIN_PA03 // A13
#define DIO31_PIN PIN_PA04 // A13
#define DIO32_PIN PIN_PA05 // A1
#define DIO8_PIN PIN_PA06 // A14
#define DIO9_PIN PIN_PA07 // A15
#define DIO4_PIN PIN_PA08 // A15
#define DIO3_PIN PIN_PA09 // A15
#define DIO1_PIN PIN_PA10
#define DIO0_PIN PIN_PA11
#define DIO18_PIN PIN_PA12
#define DIO52_PIN PIN_PA13
#define DIO2_PIN PIN_PA14
#define DIO5_PIN PIN_PA15
#define DIO11_PIN PIN_PA16
#define DIO13_PIN PIN_PA17
#define DIO10_PIN PIN_PA18
#define DIO12_PIN PIN_PA19
#define DIO6_PIN PIN_PA20
#define DIO07_PIN PIN_PA21
#define DIO34_PIN PIN_PA22
#define DIO35_PIN PIN_PA23
#define DIO42_PIN PIN_PA24
#define DIO43_PIN PIN_PA25
#define DIO40_PIN PIN_PA27
#define DIO26_PIN PIN_PB00
#define DIO27_PIN PIN_PB01 // A0
#define DIO33_PIN PIN_PB02
#define DIO39_PIN PIN_PB03
#define DIO14_PIN PIN_PB04
#define DIO15_PIN PIN_PB05
#define DIO16_PIN PIN_PB06
#define DIO17_PIN PIN_PB07
#define DIO29_PIN PIN_PB08
#define DIO30_PIN PIN_PB09
#define DIO37_PIN PIN_PB10
#define DIO38_PIN PIN_PB11
#define DIO36_PIN PIN_PB12
#define DIO19_PIN PIN_PB13
#define DIO20_PIN PIN_PB14
#define DIO21_PIN PIN_PB15
#define DIO22_PIN PIN_PB16
#define DIO23_PIN PIN_PB17
#define DIO44_PIN PIN_PB22
#define DIO45_PIN PIN_PB23
#define DIO24_PIN PIN_PB30
#define DIO25_PIN PIN_PB31
#define DIO53_PIN PIN_PA21
#define DIO54_PIN PIN_PA06
#define DIO55_PIN PIN_PA07

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Marlin/src/HAL/SAMD21/inc/Conditionals_LCD.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#pragma once
#if HAS_SPI_TFT || HAS_FSMC_TFT
#error "Sorry! TFT displays are not available for HAL/SAMD21."
#endif

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Marlin/src/HAL/SAMD21/inc/Conditionals_adv.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#pragma once

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Marlin/src/HAL/SAMD21/inc/Conditionals_post.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#pragma once
#if USE_FALLBACK_EEPROM
#define FLASH_EEPROM_EMULATION
#elif EITHER(I2C_EEPROM, SPI_EEPROM)
#define USE_SHARED_EEPROM 1
#endif

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Marlin/src/HAL/SAMD21/inc/SanityCheck.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
/**
* Test SAMD21 specific configuration values for errors at compile-time.
*/
#if SERVO_TC == MF_TIMER_RTC
#error "Servos can't use RTC timer"
#endif
#if ENABLED(EMERGENCY_PARSER)
#error "EMERGENCY_PARSER is not yet implemented for SAMD21. Disable EMERGENCY_PARSER to continue."
#endif
#if ENABLED(SDIO_SUPPORT)
#error "SDIO_SUPPORT is not supported on SAMD21."
#endif
#if ENABLED(FAST_PWM_FAN)
#error "Features requiring Hardware PWM (FAST_PWM_FAN) are not yet supported on SAMD21."
#endif
#if ENABLED(POSTMORTEM_DEBUGGING)
#error "POSTMORTEM_DEBUGGING is not yet supported on SAMD21."
#endif

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Marlin/src/HAL/SAMD21/pinsDebug.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#define NUMBER_PINS_TOTAL PINS_COUNT
#define digitalRead_mod(p) extDigitalRead(p)
#define PRINT_PORT(p) do{ SERIAL_ECHOPGM(" Port: "); sprintf_P(buffer, PSTR("%c%02ld"), 'A' + g_APinDescription[p].ulPort, g_APinDescription[p].ulPin); SERIAL_ECHO(buffer); }while (0)
#define PRINT_ARRAY_NAME(x) do{ sprintf_P(buffer, PSTR("%-" STRINGIFY(MAX_NAME_LENGTH) "s"), pin_array[x].name); SERIAL_ECHO(buffer); }while(0)
#define PRINT_PIN(p) do{ sprintf_P(buffer, PSTR("%3d "), p); SERIAL_ECHO(buffer); }while(0)
#define PRINT_PIN_ANALOG(p) do{ sprintf_P(buffer, PSTR(" (A%2d) "), DIGITAL_PIN_TO_ANALOG_PIN(pin)); SERIAL_ECHO(buffer); }while(0)
#define GET_ARRAY_PIN(p) pin_array[p].pin
#define GET_ARRAY_IS_DIGITAL(p) pin_array[p].is_digital
#define VALID_PIN(pin) (pin >= 0 && pin < (int8_t)NUMBER_PINS_TOTAL)
#define DIGITAL_PIN_TO_ANALOG_PIN(p) digitalPinToAnalogInput(p)
#define IS_ANALOG(P) (DIGITAL_PIN_TO_ANALOG_PIN(P)!=-1)
#define pwm_status(pin) digitalPinHasPWM(pin)
#define MULTI_NAME_PAD 27 // space needed to be pretty if not first name assigned to a pin
// pins that will cause hang/reset/disconnect in M43 Toggle and Watch utilities
// uses pin index
#define M43_NEVER_TOUCH(Q) ((Q) >= 75)
bool GET_PINMODE(int8_t pin) { // 1: output, 0: input
const EPortType samdport = g_APinDescription[pin].ulPort;
const uint32_t samdpin = g_APinDescription[pin].ulPin;
return PORT->Group[samdport].DIR.reg & MASK(samdpin) || (PORT->Group[samdport].PINCFG[samdpin].reg & (PORT_PINCFG_INEN | PORT_PINCFG_PULLEN)) == PORT_PINCFG_PULLEN;
}
void pwm_details(int32_t pin) {
if (pwm_status(pin)) {
//uint32_t chan = g_APinDescription[pin].ulPWMChannel TODO when fast pwm is operative;
//SERIAL_ECHOPGM("PWM = ", duty);
}
}
/**
* SAMD21 Board pin| PORT | Label
* ----------------+--------+-------
* 0 | PB25 | "RX0"
* 1 | PB24 | "TX0"
* 2 | PC18 |
* 3 | PC19 |
* 4 | PC20 |
* 5 | PC21 |
* 6 | PD20 |
* 7 | PD21 |
* 8 | PB18 |
* 9 | PB2 |
* 10 | PB22 |
* 11 | PB23 |
* 12 | PB0 | "A16"
* 13 | PB1 | LED AMBER "L" / "A17"
* 14 | PB16 | "TX3"
* 15 | PB17 | "RX3"
* 16 | PC22 | "TX2"
* 17 | PC23 | "RX2"
* 18 | PB12 | "TX1" / "A18"
* 19 | PB13 | "RX1"
* 20 | PB20 | "SDA"
* 21 | PB21 | "SCL"
* 22 | PD12 |
* 23 | PA15 |
* 24 | PC17 |
* 25 | PC16 |
* 26 | PA12 |
* 27 | PA13 |
* 28 | PA14 |
* 29 | PB19 |
* 30 | PA23 |
* 31 | PA22 |
* 32 | PA21 |
* 33 | PA20 |
* 34 | PA19 |
* 35 | PA18 |
* 36 | PA17 |
* 37 | PA16 |
* 38 | PB15 |
* 39 | PB14 |
* 40 | PC13 |
* 41 | PC12 |
* 42 | PC15 |
* 43 | PC14 |
* 44 | PC11 |
* 45 | PC10 |
* 46 | PC6 |
* 47 | PC7 |
* 48 | PC4 |
* 49 | PC5 |
* 50 | PD11 |
* 51 | PD8 |
* 52 | PD9 |
* 53 | PD10 |
* 54 | PB5 | "A8"
* 55 | PB6 | "A9"
* 56 | PB7 | "A10"
* 57 | PB8 | "A11"
* 58 | PB9 | "A12"
* 69 | PA4 | "A13"
* 60 | PA6 | "A14"
* 61 | PA7 | "A15"
* 62 | PB17 |
* 63 | PB20 |
* 64 | PD11 |
* 65 | PD8 |
* 66 | PD9 |
* 67 | PA2 | "A0" / "DAC0"
* 68 | PA5 | "A1" / "DAC1"
* 69 | PB3 | "A2"
* 70 | PC0 | "A3"
* 71 | PC1 | "A4"
* 72 | PC2 | "A5"
* 73 | PC3 | "A6"
* 74 | PB4 | "A7"
* 75 | PC31 | LED GREEN "RX"
* 76 | PC30 | LED GREEN "TX"
* 77 | PA27 | USB: Host enable
* 78 | PA24 | USB: D-
* 79 | PA25 | USB: D+
* 80 | PB29 | SD: MISO
* 81 | PB27 | SD: SCK
* 82 | PB26 | SD: MOSI
* 83 | PB28 | SD: CS
* 84 | PA3 | AREF
* 85 | PA2 | DAC0 (Duplicate)
* 86 | PA5 | DAC1 (Duplicate)
* 87 | PB1 | LED AMBER "L" (Duplicate)
* 88 | PC24 | NeoPixel
* 89 | PB10 | QSPI: SCK
* 90 | PB11 | QSPI: CS
* 91 | PA8 | QSPI: IO0
* 92 | PA9 | QSPI: IO1
* 93 | PA10 | QSPI: IO2
* 94 | PA11 | QSPI: IO3
* 95 | PB31 | SD: DETECT
*/

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Marlin/src/HAL/SAMD21/spi_pins.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
/**
* SAMD21 Default SPI Pins
*
* SS SCK MISO MOSI
* +-------------------------+
* SPI | 53 52 50 51 |
* SPI1 | 83 81 80 82 |
* +-------------------------+
* Any pin can be used for Chip Select (SD_SS_PIN)
*/
#ifndef SD_SCK_PIN
#define SD_SCK_PIN 38
#endif
#ifndef SD_MISO_PIN
#define SD_MISO_PIN 36
#endif
#ifndef SD_MOSI_PIN
#define SD_MOSI_PIN 37
#endif
#ifndef SDSS
#define SDSS 18
#endif
#ifndef SD_SS_PIN
#define SD_SS_PIN SDSS
#endif

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Marlin/src/HAL/SAMD21/timers.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#ifdef __SAMD21__
// --------------------------------------------------------------------------
// Includes
// --------------------------------------------------------------------------
#include "../../inc/MarlinConfig.h"
#include "ServoTimers.h" // for SERVO_TC
// --------------------------------------------------------------------------
// Local defines
// --------------------------------------------------------------------------
#define NUM_HARDWARE_TIMERS 9
// --------------------------------------------------------------------------
// Private Variables
// --------------------------------------------------------------------------
const tTimerConfig timer_config[NUM_HARDWARE_TIMERS] = {
{ {.pTcc=TCC0}, TimerType::tcc, TCC0_IRQn, TC_PRIORITY(0) }, // 0 - stepper (assigned priority 2)
{ {.pTcc=TCC1}, TimerType::tcc, TCC1_IRQn, TC_PRIORITY(1) }, // 1 - stepper (needed by 32 bit timers)
{ {.pTcc=TCC2}, TimerType::tcc, TCC2_IRQn, 5 }, // 2 - tone (reserved by framework and fixed assigned priority 5)
{ {.pTc=TC3}, TimerType::tc, TC3_IRQn, TC_PRIORITY(3) }, // 3 - servo (assigned priority 1)
{ {.pTc=TC4}, TimerType::tc, TC4_IRQn, TC_PRIORITY(4) }, // 4 - software serial (no interrupts used)
{ {.pTc=TC5}, TimerType::tc, TC5_IRQn, TC_PRIORITY(5) },
{ {.pTc=TC6}, TimerType::tc, TC6_IRQn, TC_PRIORITY(6) },
{ {.pTc=TC7}, TimerType::tc, TC7_IRQn, TC_PRIORITY(7) },
{ {.pRtc=RTC}, TimerType::rtc, RTC_IRQn, TC_PRIORITY(8) } // 8 - temperature (assigned priority 6)
};
// --------------------------------------------------------------------------
// Private functions
// --------------------------------------------------------------------------
FORCE_INLINE void Disable_Irq(IRQn_Type irq) {
NVIC_DisableIRQ(irq);
// We NEED memory barriers to ensure Interrupts are actually disabled!
// ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
__DSB();
__ISB();
}
static bool tcIsSyncing(Tc * tc) {
return tc->COUNT32.STATUS.reg & TC_STATUS_SYNCBUSY;
}
static void tcReset( Tc * tc) {
tc->COUNT32.CTRLA.reg = TC_CTRLA_SWRST;
while (tcIsSyncing(tc)) {}
while (tc->COUNT32.CTRLA.bit.SWRST) {}
}
// --------------------------------------------------------------------------
// Public functions
// --------------------------------------------------------------------------
void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency) {
IRQn_Type irq = timer_config[timer_num].IRQ_Id;
// Disable interrupt, just in case it was already enabled
NVIC_DisableIRQ(irq);
NVIC_ClearPendingIRQ(irq);
if (timer_num == MF_TIMER_RTC) {
// https://github.com/arduino-libraries/RTCZero
Rtc * const rtc = timer_config[timer_num].pRtc;
PM->APBAMASK.reg |= PM_APBAMASK_RTC;
GCLK->CLKCTRL.reg = (uint32_t)((GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK4 | (RTC_GCLK_ID << GCLK_CLKCTRL_ID_Pos)));
while (GCLK->STATUS.bit.SYNCBUSY) {}
GCLK->GENCTRL.reg = (GCLK_GENCTRL_GENEN | GCLK_GENCTRL_SRC_OSCULP32K | GCLK_GENCTRL_ID(4) | GCLK_GENCTRL_DIVSEL );
while (GCLK->STATUS.reg & GCLK_STATUS_SYNCBUSY) {}
GCLK->GENDIV.reg = GCLK_GENDIV_ID(4);
GCLK->GENDIV.bit.DIV=4;
while (GCLK->STATUS.reg & GCLK_STATUS_SYNCBUSY) {}
// Disable timer interrupt
rtc->MODE0.INTENCLR.reg = RTC_MODE0_INTENCLR_CMP0;
SYNC(rtc->MODE0.STATUS.bit.SYNCBUSY);
while(rtc->MODE0.STATUS.bit.SYNCBUSY) {}
// Stop timer, just in case, to be able to reconfigure it
rtc->MODE0.CTRL.reg =
RTC_MODE0_CTRL_MODE_COUNT32 | // Mode 0 = 32-bits counter
RTC_MODE0_CTRL_PRESCALER_DIV1024; // Divisor = 1024
while(rtc->MODE0.STATUS.bit.SYNCBUSY) {}
// Mode, reset counter on match
rtc->MODE0.CTRL.reg = RTC_MODE0_CTRL_MODE_COUNT32 | RTC_MODE0_CTRL_MATCHCLR;
// Set compare value
rtc->MODE0.COMP[0].reg = (32768 + frequency / 2) / frequency;
SYNC(rtc->MODE0.STATUS.bit.SYNCBUSY);
// Enable interrupt on compare
rtc->MODE0.INTFLAG.reg = RTC_MODE0_INTFLAG_CMP0; // reset pending interrupt
rtc->MODE0.INTENSET.reg = RTC_MODE0_INTENSET_CMP0; // enable compare 0 interrupt
// And start timer
rtc->MODE0.CTRL.bit.ENABLE = true;
SYNC(rtc->MODE0.STATUS.bit.SYNCBUSY);
}
else if (timer_config[timer_num].type==TimerType::tcc) {
Tcc * const tc = timer_config[timer_num].pTcc;
PM->APBCMASK.reg |= PM_APBCMASK_TCC0;
GCLK->CLKCTRL.reg =(GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | GCLK_CLKCTRL_ID(TCC0_GCLK_ID));
SYNC (GCLK->STATUS.bit.SYNCBUSY);
tc->CTRLA.reg = TCC_CTRLA_SWRST;
SYNC (tc->SYNCBUSY.reg & TCC_SYNCBUSY_SWRST) {}
SYNC (tc->CTRLA.bit.SWRST);
tc->CTRLA.reg &= ~(TCC_CTRLA_ENABLE); // disable TC module
tc->CTRLA.reg |= TCC_WAVE_WAVEGEN_MFRQ;
tc->CTRLA.reg |= TCC_CTRLA_PRESCALER_DIV2;
tc->CC[0].reg = (HAL_TIMER_RATE) / frequency;
tc->INTENSET.reg = TCC_INTFLAG_MC0;
tc->CTRLA.reg |= TCC_CTRLA_ENABLE;
tc->INTFLAG.reg = 0xFF;
SYNC ( tc->STATUS.reg & TC_STATUS_SYNCBUSY);
}
else {
Tc * const tc = timer_config[timer_num].pTc;
// Disable timer interrupt
tc->COUNT32.INTENCLR.reg = TC_INTENCLR_OVF; // disable overflow interrupt
// TCn clock setup
GCLK->CLKCTRL.reg = (uint16_t) (GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | GCLK_CLKCTRL_ID(GCM_TC4_TC5)) ;
SYNC (GCLK->STATUS.bit.SYNCBUSY);
tcReset(tc); // reset TC
// Set Timer counter 5 Mode to 16 bits, it will become a 16bit counter ('mode1' in the datasheet)
tc->COUNT32.CTRLA.reg |= TC_CTRLA_MODE_COUNT32;
// Set TC waveform generation mode to 'match frequency'
tc->COUNT32.CTRLA.reg |= TC_CTRLA_WAVEGEN_MFRQ;
//set prescaler
//the clock normally counts at the GCLK_TC frequency, but we can set it to divide that frequency to slow it down
//you can use different prescaler divisons here like TC_CTRLA_PRESCALER_DIV1 to get a different range
tc->COUNT32.CTRLA.reg |= TC_CTRLA_PRESCALER_DIV1 | TC_CTRLA_ENABLE; //it will divide GCLK_TC frequency by 1024
//set the compare-capture register.
//The counter will count up to this value (it's a 16bit counter so we use uint16_t)
//this is how we fine-tune the frequency, make it count to a lower or higher value
//system clock should be 1MHz (8MHz/8) at Reset by default
tc->COUNT32.CC[0].reg = (uint16_t) (HAL_TIMER_RATE / frequency);
while (tcIsSyncing(tc)) {}
// Enable the TC interrupt request
tc->COUNT32.INTENSET.bit.MC0 = 1;
while (tcIsSyncing(tc)) {}
}
NVIC_SetPriority(irq, timer_config[timer_num].priority);
NVIC_EnableIRQ(irq);
}
void HAL_timer_enable_interrupt(const uint8_t timer_num) {
const IRQn_Type irq = timer_config[timer_num].IRQ_Id;
NVIC_EnableIRQ(irq);
}
void HAL_timer_disable_interrupt(const uint8_t timer_num) {
const IRQn_Type irq = timer_config[timer_num].IRQ_Id;
Disable_Irq(irq);
}
// missing from CMSIS: Check if interrupt is enabled or not
static bool NVIC_GetEnabledIRQ(IRQn_Type IRQn) {
return TEST(NVIC->ISER[uint32_t(IRQn) >> 5], uint32_t(IRQn) & 0x1F);
}
bool HAL_timer_interrupt_enabled(const uint8_t timer_num) {
const IRQn_Type irq = timer_config[timer_num].IRQ_Id;
return NVIC_GetEnabledIRQ(irq);
}
#endif // __SAMD21__

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Marlin/src/HAL/SAMD21/timers.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#include <stdint.h>
// --------------------------------------------------------------------------
// Defines
// --------------------------------------------------------------------------
typedef uint32_t hal_timer_t;
#define HAL_TIMER_TYPE_MAX 0xFFFFFFFF
#define HAL_TIMER_RATE F_CPU // frequency of timers peripherals
#define MF_TIMER_RTC 8 // This is not a TC but a RTC
#ifndef MF_TIMER_STEP
#define MF_TIMER_STEP 4 // Timer Index for Stepper
#endif
#ifndef MF_TIMER_PULSE
#define MF_TIMER_PULSE MF_TIMER_STEP
#endif
#ifndef MF_TIMER_TEMP
#define MF_TIMER_TEMP MF_TIMER_RTC // Timer Index for Temperature
#endif
#define TEMP_TIMER_FREQUENCY 1000 // temperature interrupt frequency
#define STEPPER_TIMER_RATE HAL_TIMER_RATE // frequency of stepper timer (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE)
#define STEPPER_TIMER_TICKS_PER_US (STEPPER_TIMER_RATE / 1000000) // stepper timer ticks per µs
#define STEPPER_TIMER_PRESCALE (CYCLES_PER_MICROSECOND / STEPPER_TIMER_TICKS_PER_US)
#define PULSE_TIMER_RATE STEPPER_TIMER_RATE
#define PULSE_TIMER_PRESCALE STEPPER_TIMER_PRESCALE
#define PULSE_TIMER_TICKS_PER_US STEPPER_TIMER_TICKS_PER_US
#define ENABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_STEP)
#define DISABLE_STEPPER_DRIVER_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_STEP)
#define STEPPER_ISR_ENABLED() HAL_timer_interrupt_enabled(MF_TIMER_STEP)
#define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(MF_TIMER_TEMP)
#define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(MF_TIMER_TEMP)
#define TC_PRIORITY(t) ( t == SERVO_TC ? 1 \
: (t == MF_TIMER_STEP || t == MF_TIMER_PULSE) ? 2 \
: (t == MF_TIMER_TEMP) ? 6 : 7 )
#define _TC_HANDLER(t) void TC##t##_Handler()
#define TC_HANDLER(t) _TC_HANDLER(t)
#ifndef HAL_STEP_TIMER_ISR
#define HAL_STEP_TIMER_ISR() TC_HANDLER(MF_TIMER_STEP)
#endif
#if MF_TIMER_STEP != MF_TIMER_PULSE
#define HAL_PULSE_TIMER_ISR() TC_HANDLER(MF_TIMER_PULSE)
#endif
#if MF_TIMER_TEMP == MF_TIMER_RTC
#define HAL_TEMP_TIMER_ISR() void RTC_Handler()
#else
#define HAL_TEMP_TIMER_ISR() TC_HANDLER(MF_TIMER_TEMP)
#endif
// --------------------------------------------------------------------------
// Types
// --------------------------------------------------------------------------
typedef enum { tcc, tc, rtc } TimerType;
typedef struct {
union {
Tc *pTc;
Tcc *pTcc;
Rtc *pRtc;
};
TimerType type;
IRQn_Type IRQ_Id;
uint8_t priority;
} tTimerConfig;
// --------------------------------------------------------------------------
// Public Variables
// --------------------------------------------------------------------------
extern const tTimerConfig timer_config[];
// --------------------------------------------------------------------------
// Public functions
// --------------------------------------------------------------------------
void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);
FORCE_INLINE static void HAL_timer_set_compare(const uint8_t timer_num, const hal_timer_t compare) {
// Should never be called with timer MF_TIMER_RTC
Tc * const tc = timer_config[timer_num].pTc;
tc->COUNT32.CC[0].reg = compare;
}
FORCE_INLINE static hal_timer_t HAL_timer_get_compare(const uint8_t timer_num) {
// Should never be called with timer MF_TIMER_RTC
Tc * const tc = timer_config[timer_num].pTc;
return (hal_timer_t)tc->COUNT32.CC[0].reg;
}
FORCE_INLINE static hal_timer_t HAL_timer_get_count(const uint8_t timer_num) {
// Should never be called with timer MF_TIMER_RTC
Tc * const tc = timer_config[timer_num].pTc;
tc->COUNT32.READREQ.reg = TC_READREQ_RREQ;
// Request a read synchronization
SYNC (tc->COUNT32.STATUS.bit.SYNCBUSY);
//SYNC(tc->COUNT32.STATUS.bit.SYNCBUSY );
return tc->COUNT32.COUNT.reg;
}
void HAL_timer_enable_interrupt(const uint8_t timer_num);
void HAL_timer_disable_interrupt(const uint8_t timer_num);
bool HAL_timer_interrupt_enabled(const uint8_t timer_num);
FORCE_INLINE static void HAL_timer_isr_prologue(const uint8_t timer_num) {
if (timer_num == MF_TIMER_RTC) {
Rtc * const rtc = timer_config[timer_num].pRtc;
// Clear interrupt flag
rtc->MODE0.INTFLAG.reg = RTC_MODE0_INTFLAG_CMP0| RTC_MODE0_INTFLAG_OVF;
}
else if (timer_config[timer_num].type == TimerType::tcc){
Tcc * const tc = timer_config[timer_num].pTcc;
// Clear interrupt flag
tc->INTFLAG.reg = TCC_INTFLAG_OVF;
}
else {
Tc * const tc = timer_config[timer_num].pTc;
// Clear interrupt flag
tc->COUNT32.INTFLAG.bit.MC0 = 1;
}
}
#define HAL_timer_isr_epilogue(timer_num)

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Marlin/src/HAL/SAMD21/u8g/LCD_I2C_routines.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
// adapted from I2C/master/master.c example
// https://www-users.cs.york.ac.uk/~pcc/MCP/HAPR-Course-web/CMSIS/examples/html/master_8c_source.html
#ifdef __SAMD21__
#endif // __SAMD21__

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Marlin/src/HAL/SAMD21/u8g/LCD_I2C_routines.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#pragma once

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Marlin/src/HAL/SAMD21/u8g/LCD_defines.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#pragma once
/**
* SAMD21 LCD-specific defines
*/
// The following are optional depending on the platform.
// definitions of HAL specific com and device drivers.
uint8_t u8g_com_samd21_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
uint8_t u8g_com_samd21_st7920_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr);
// connect U8g com generic com names to the desired driver
#define U8G_COM_HW_SPI u8g_com_samd21_st7920_hw_spi_fn // use SAMD21 specific hardware SPI routine
#define U8G_COM_ST7920_HW_SPI u8g_com_samd21_st7920_hw_spi_fn

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Marlin/src/HAL/SAMD21/u8g/LCD_pin_routines.c
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
/**
* Low level pin manipulation routines - used by all the drivers.
*
* These are based on the SAMD51 pinMode, digitalRead & digitalWrite routines.
*
* Couldn't just call exact copies because the overhead killed the LCD update speed
* With an intermediate level the softspi was running in the 10-20kHz range which
* resulted in using about about 25% of the CPU's time.
*/
#ifdef __SAMD21__
#include <Arduino.h>
#endif // __SAMD21__

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Marlin/src/HAL/SAMD21/u8g/LCD_pin_routines.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
#pragma once
/**
* Low level pin manipulation routines - used by all the drivers.
*
* These are based on the SAMD51 pinMode, digitalRead & digitalWrite routines.
*
* Couldn't just call exact copies because the overhead killed the LCD update speed
* With an intermediate level the softspi was running in the 10-20kHz range which
* resulted in using about about 25% of the CPU's time.
*/
void u8g_SetPinOutput(uint8_t internal_pin_number);
void u8g_SetPinInput(uint8_t internal_pin_number);
void u8g_SetPinLevel(uint8_t pin, uint8_t pin_status);
uint8_t u8g_GetPinLevel(uint8_t pin);

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Marlin/src/HAL/SAMD21/u8g/u8g_com_HAL_samd21_shared_hw_spi.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2022 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/**
* SAMD21 HAL developed by Bart Meijer (brupje)
* Based on SAMD51 HAL by Giuliano Zaro (AKA GMagician)
*/
/**
* Based on u8g_com_msp430_hw_spi.c
*
* Universal 8bit Graphics Library
*
* Copyright (c) 2012, olikraus@gmail.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef __SAMD21__
#include <U8glib-HAL.h>
#include "SPI.h"
#include "../../shared/HAL_SPI.h"
#ifndef LCD_SPI_SPEED
#define LCD_SPI_SPEED SPI_QUARTER_SPEED
#endif
void u8g_SetPIOutput(u8g_t *u8g, uint8_t pin_index) {
if (u8g->pin_list[pin_index]!= U8G_PIN_NONE)
pinMode(u8g->pin_list[pin_index],OUTPUT);
}
void u8g_SetPILevel(u8g_t *u8g, uint8_t pin_index, uint8_t level) {
if (u8g->pin_list[pin_index]!= U8G_PIN_NONE)
digitalWrite(u8g->pin_list[pin_index],level);
}
uint8_t u8g_com_samd21_st7920_hw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {
static SPISettings lcdSPIConfig;
switch (msg) {
case U8G_COM_MSG_STOP:
break;
case U8G_COM_MSG_INIT:
u8g_SetPIOutput(u8g, U8G_PI_CS);
u8g_SetPIOutput(u8g, U8G_PI_A0);
u8g_SetPIOutput(u8g, U8G_PI_RESET);
u8g_SetPILevel(u8g, U8G_PI_CS, LOW);
spiBegin();
lcdSPIConfig = SPISettings(900000, MSBFIRST, SPI_MODE0);
u8g->pin_list[U8G_PI_A0_STATE] = 0;
break;
case U8G_COM_MSG_ADDRESS: // define cmd (arg_val = 0) or data mode (arg_val = 1)
u8g_SetPILevel(u8g, U8G_PI_A0, arg_val);
u8g->pin_list[U8G_PI_A0_STATE] = arg_val;
break;
case U8G_COM_MSG_CHIP_SELECT: // arg_val == 1 means chip selected, but ST7920 is active high, so needs inverting
u8g_SetPILevel(u8g, U8G_PI_CS, arg_val ? HIGH : LOW);
break;
case U8G_COM_MSG_RESET:
u8g_SetPILevel(u8g, U8G_PI_RESET, arg_val);
break;
case U8G_COM_MSG_WRITE_BYTE:
SPI.beginTransaction(lcdSPIConfig);
if (u8g->pin_list[U8G_PI_A0_STATE] == 0) { // command
SPI.transfer(0x0f8); u8g->pin_list[U8G_PI_A0_STATE] = 2;
}
else if (u8g->pin_list[U8G_PI_A0_STATE] == 1) { // data
SPI.transfer(0x0fa); u8g->pin_list[U8G_PI_A0_STATE] = 2;
}
SPI.transfer(arg_val & 0x0f0);
SPI.transfer(arg_val << 4);
SPI.endTransaction();
break;
case U8G_COM_MSG_WRITE_SEQ:
SPI.beginTransaction(lcdSPIConfig);
if (u8g->pin_list[U8G_PI_A0_STATE] == 0 ) { // command
SPI.transfer(0x0f8); u8g->pin_list[U8G_PI_A0_STATE] = 2;
}
else if (u8g->pin_list[U8G_PI_A0_STATE] == 1) { // data
SPI.transfer(0x0fa); u8g->pin_list[U8G_PI_A0_STATE] = 2;
}
uint8_t *ptr = (uint8_t*)arg_ptr;
while (arg_val > 0) {
SPI.transfer((*ptr) & 0x0f0);
SPI.transfer((*ptr) << 4);
ptr++;
arg_val--;
}
SPI.endTransaction();
break;
}
return 1;
}
#endif // __SAMD21__

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/**
* Marlin 3D Printer Firmware
*
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
* Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
* Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
* Copyright (c) 2017 Victor Perez
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
#include "../../inc/MarlinConfig.h"
#include "../shared/Delay.h"
#include "usb_serial.h"
#ifdef USBCON
DefaultSerial1 MSerialUSB(false, SerialUSB);
#endif
#if ENABLED(SRAM_EEPROM_EMULATION)
#if STM32F7xx
#include <stm32f7xx_ll_pwr.h>
#elif STM32F4xx
#include <stm32f4xx_ll_pwr.h>
#else
#error "SRAM_EEPROM_EMULATION is currently only supported for STM32F4xx and STM32F7xx"
#endif
#endif
#if HAS_SD_HOST_DRIVE
#include "msc_sd.h"
#include "usbd_cdc_if.h"
#endif
// ------------------------
// Public Variables
// ------------------------
uint16_t MarlinHAL::adc_result;
// ------------------------
// Public functions
// ------------------------
#if ENABLED(POSTMORTEM_DEBUGGING)
extern void install_min_serial();
#endif
// HAL initialization task
void MarlinHAL::init() {
// Ensure F_CPU is a constant expression.
// If the compiler breaks here, it means that delay code that should compute at compile time will not work.
// So better safe than sorry here.
constexpr int cpuFreq = F_CPU;
UNUSED(cpuFreq);
#if ENABLED(SDSUPPORT) && DISABLED(SDIO_SUPPORT) && (defined(SDSS) && SDSS != -1)
OUT_WRITE(SDSS, HIGH); // Try to set SDSS inactive before any other SPI users start up
#endif
#if PIN_EXISTS(LED)
OUT_WRITE(LED_PIN, LOW);
#endif
#if ENABLED(SRAM_EEPROM_EMULATION)
__HAL_RCC_PWR_CLK_ENABLE();
HAL_PWR_EnableBkUpAccess(); // Enable access to backup SRAM
__HAL_RCC_BKPSRAM_CLK_ENABLE();
LL_PWR_EnableBkUpRegulator(); // Enable backup regulator
while (!LL_PWR_IsActiveFlag_BRR()); // Wait until backup regulator is initialized
#endif
SetTimerInterruptPriorities();
#if ENABLED(EMERGENCY_PARSER) && (USBD_USE_CDC || USBD_USE_CDC_MSC)
USB_Hook_init();
#endif
TERN_(POSTMORTEM_DEBUGGING, install_min_serial()); // Install the min serial handler
TERN_(HAS_SD_HOST_DRIVE, MSC_SD_init()); // Enable USB SD card access
#if PIN_EXISTS(USB_CONNECT)
OUT_WRITE(USB_CONNECT_PIN, !USB_CONNECT_INVERTING); // USB clear connection
delay(1000); // Give OS time to notice
WRITE(USB_CONNECT_PIN, USB_CONNECT_INVERTING);
#endif
}
// HAL idle task
void MarlinHAL::idletask() {
#if HAS_SHARED_MEDIA
// Stm32duino currently doesn't have a "loop/idle" method
CDC_resume_receive();
CDC_continue_transmit();
#endif
}
void MarlinHAL::reboot() { NVIC_SystemReset(); }
uint8_t MarlinHAL::get_reset_source() {
return
#ifdef RCC_FLAG_IWDGRST // Some sources may not exist...
RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_IWDGRST) ? RST_WATCHDOG :
#endif
#ifdef RCC_FLAG_IWDG1RST
RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_IWDG1RST) ? RST_WATCHDOG :
#endif
#ifdef RCC_FLAG_IWDG2RST
RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_IWDG2RST) ? RST_WATCHDOG :
#endif
#ifdef RCC_FLAG_SFTRST
RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_SFTRST) ? RST_SOFTWARE :
#endif
#ifdef RCC_FLAG_PINRST
RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_PINRST) ? RST_EXTERNAL :
#endif
#ifdef RCC_FLAG_PORRST
RESET != __HAL_RCC_GET_FLAG(RCC_FLAG_PORRST) ? RST_POWER_ON :
#endif
0
;
}
void MarlinHAL::clear_reset_source() { __HAL_RCC_CLEAR_RESET_FLAGS(); }
// ------------------------
// Watchdog Timer
// ------------------------
#if ENABLED(USE_WATCHDOG)
#define WDT_TIMEOUT_US TERN(WATCHDOG_DURATION_8S, 8000000, 4000000) // 4 or 8 second timeout
#include <IWatchdog.h>
void MarlinHAL::watchdog_init() {
IF_DISABLED(DISABLE_WATCHDOG_INIT, IWatchdog.begin(WDT_TIMEOUT_US));
}
void MarlinHAL::watchdog_refresh() {
IWatchdog.reload();
#if DISABLED(PINS_DEBUGGING) && PIN_EXISTS(LED)
TOGGLE(LED_PIN); // heartbeat indicator
#endif
}
#endif
extern "C" {
extern unsigned int _ebss; // end of bss section
}
// Reset the system to initiate a firmware flash
WEAK void flashFirmware(const int16_t) { hal.reboot(); }
// Maple Compatibility
volatile uint32_t systick_uptime_millis = 0;
systickCallback_t systick_user_callback;
void systick_attach_callback(systickCallback_t cb) { systick_user_callback = cb; }
void HAL_SYSTICK_Callback() {
systick_uptime_millis++;
if (systick_user_callback) systick_user_callback();
}
#endif // HAL_STM32

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/**
* Marlin 3D Printer Firmware
*
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
* Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
* Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
* Copyright (c) 2017 Victor Perez
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#define CPU_32_BIT
#include "../../core/macros.h"
#include "../shared/Marduino.h"
#include "../shared/math_32bit.h"
#include "../shared/HAL_SPI.h"
#include "fastio.h"
#include "Servo.h"
#include "MarlinSerial.h"
#include "../../inc/MarlinConfigPre.h"
#include <stdint.h>
//
// Default graphical display delays
//
#define CPU_ST7920_DELAY_1 300
#define CPU_ST7920_DELAY_2 40
#define CPU_ST7920_DELAY_3 340
// ------------------------
// Serial ports
// ------------------------
#ifdef USBCON
#include <USBSerial.h>
#include "../../core/serial_hook.h"
typedef ForwardSerial1Class< decltype(SerialUSB) > DefaultSerial1;
extern DefaultSerial1 MSerialUSB;
#endif
#define _MSERIAL(X) MSerial##X
#define MSERIAL(X) _MSERIAL(X)
#if WITHIN(SERIAL_PORT, 1, 6)
#define MYSERIAL1 MSERIAL(SERIAL_PORT)
#elif !defined(USBCON)
#error "SERIAL_PORT must be from 1 to 6."
#elif SERIAL_PORT == -1
#define MYSERIAL1 MSerialUSB
#else
#error "SERIAL_PORT must be from 1 to 6, or -1 for Native USB."
#endif
#ifdef SERIAL_PORT_2
#if WITHIN(SERIAL_PORT_2, 1, 6)
#define MYSERIAL2 MSERIAL(SERIAL_PORT_2)
#elif !defined(USBCON)
#error "SERIAL_PORT must be from 1 to 6."
#elif SERIAL_PORT_2 == -1
#define MYSERIAL2 MSerialUSB
#else
#error "SERIAL_PORT_2 must be from 1 to 6, or -1 for Native USB."
#endif
#endif
#ifdef SERIAL_PORT_3
#if WITHIN(SERIAL_PORT_3, 1, 6)
#define MYSERIAL3 MSERIAL(SERIAL_PORT_3)
#elif !defined(USBCON)
#error "SERIAL_PORT must be from 1 to 6."
#elif SERIAL_PORT_3 == -1
#define MYSERIAL3 MSerialUSB
#else
#error "SERIAL_PORT_3 must be from 1 to 6, or -1 for Native USB."
#endif
#endif
#ifdef MMU2_SERIAL_PORT
#if WITHIN(MMU2_SERIAL_PORT, 1, 6)
#define MMU2_SERIAL MSERIAL(MMU2_SERIAL_PORT)
#elif !defined(USBCON)
#error "SERIAL_PORT must be from 1 to 6."
#elif MMU2_SERIAL_PORT == -1
#define MMU2_SERIAL MSerialUSB
#else
#error "MMU2_SERIAL_PORT must be from 1 to 6, or -1 for Native USB."
#endif
#endif
#ifdef LCD_SERIAL_PORT
#if WITHIN(LCD_SERIAL_PORT, 1, 6)
#define LCD_SERIAL MSERIAL(LCD_SERIAL_PORT)
#elif !defined(USBCON)
#error "SERIAL_PORT must be from 1 to 6."
#elif LCD_SERIAL_PORT == -1
#define LCD_SERIAL MSerialUSB
#else
#error "LCD_SERIAL_PORT must be from 1 to 6, or -1 for Native USB."
#endif
#if HAS_DGUS_LCD
#define SERIAL_GET_TX_BUFFER_FREE() LCD_SERIAL.availableForWrite()
#endif
#endif
/**
* TODO: review this to return 1 for pins that are not analog input
*/
#ifndef analogInputToDigitalPin
#define analogInputToDigitalPin(p) (p)
#endif
//
// Interrupts
//
#define CRITICAL_SECTION_START() const bool irqon = !__get_PRIMASK(); __disable_irq()
#define CRITICAL_SECTION_END() if (irqon) __enable_irq()
#define cli() __disable_irq()
#define sei() __enable_irq()
// ------------------------
// Types
// ------------------------
typedef double isr_float_t; // FPU ops are used for single-precision, so use double for ISRs.
#ifdef STM32G0B1xx
typedef int32_t pin_t;
#else
typedef int16_t pin_t;
#endif
class libServo;
typedef libServo hal_servo_t;
#define PAUSE_SERVO_OUTPUT() libServo::pause_all_servos()
#define RESUME_SERVO_OUTPUT() libServo::resume_all_servos()
// ------------------------
// ADC
// ------------------------
#ifdef ADC_RESOLUTION
#define HAL_ADC_RESOLUTION ADC_RESOLUTION
#else
#define HAL_ADC_RESOLUTION 12
#endif
#define HAL_ADC_VREF 3.3
//
// Pin Mapping for M42, M43, M226
//
#define GET_PIN_MAP_PIN(index) index
#define GET_PIN_MAP_INDEX(pin) pin
#define PARSED_PIN_INDEX(code, dval) parser.intval(code, dval)
#ifdef STM32F1xx
#define JTAG_DISABLE() AFIO_DBGAFR_CONFIG(AFIO_MAPR_SWJ_CFG_JTAGDISABLE)
#define JTAGSWD_DISABLE() AFIO_DBGAFR_CONFIG(AFIO_MAPR_SWJ_CFG_DISABLE)
#define JTAGSWD_RESET() AFIO_DBGAFR_CONFIG(AFIO_MAPR_SWJ_CFG_RESET); // Reset: FULL SWD+JTAG
#endif
#define PLATFORM_M997_SUPPORT
void flashFirmware(const int16_t);
// Maple Compatibility
typedef void (*systickCallback_t)(void);
void systick_attach_callback(systickCallback_t cb);
void HAL_SYSTICK_Callback();
extern volatile uint32_t systick_uptime_millis;
#define HAL_CAN_SET_PWM_FREQ // This HAL supports PWM Frequency adjustment
// ------------------------
// Class Utilities
// ------------------------
// Memory related
#define __bss_end __bss_end__
extern "C" char* _sbrk(int incr);
#pragma GCC diagnostic push
#if GCC_VERSION <= 50000
#pragma GCC diagnostic ignored "-Wunused-function"
#endif
static inline int freeMemory() {
volatile char top;
return &top - reinterpret_cast<char*>(_sbrk(0));
}
#pragma GCC diagnostic pop
// ------------------------
// MarlinHAL Class
// ------------------------
class MarlinHAL {
public:
// Earliest possible init, before setup()
MarlinHAL() {}
// Watchdog
static void watchdog_init() IF_DISABLED(USE_WATCHDOG, {});
static void watchdog_refresh() IF_DISABLED(USE_WATCHDOG, {});
static void init(); // Called early in setup()
static void init_board() {} // Called less early in setup()
static void reboot(); // Restart the firmware from 0x0
// Interrupts
static bool isr_state() { return !__get_PRIMASK(); }
static void isr_on() { sei(); }
static void isr_off() { cli(); }
static void delay_ms(const int ms) { delay(ms); }
// Tasks, called from idle()
static void idletask();
// Reset
static uint8_t get_reset_source();
static void clear_reset_source();
// Free SRAM
static int freeMemory() { return ::freeMemory(); }
//
// ADC Methods
//
static uint16_t adc_result;
// Called by Temperature::init once at startup
static void adc_init() {
analogReadResolution(HAL_ADC_RESOLUTION);
}
// Called by Temperature::init for each sensor at startup
static void adc_enable(const pin_t pin) { pinMode(pin, INPUT); }
// Begin ADC sampling on the given pin. Called from Temperature::isr!
static void adc_start(const pin_t pin) { adc_result = analogRead(pin); }
// Is the ADC ready for reading?
static bool adc_ready() { return true; }
// The current value of the ADC register
static uint16_t adc_value() { return adc_result; }
/**
* Set the PWM duty cycle for the pin to the given value.
* Optionally invert the duty cycle [default = false]
* Optionally change the maximum size of the provided value to enable finer PWM duty control [default = 255]
*/
static void set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size=255, const bool invert=false);
/**
* Set the frequency of the timer for the given pin.
* All Timer PWM pins run at the same frequency.
*/
static void set_pwm_frequency(const pin_t pin, const uint16_t f_desired);
};

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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
* Copyright (c) 2017 Victor Perez
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
#include "../../inc/MarlinConfig.h"
#include <SPI.h>
// ------------------------
// Public Variables
// ------------------------
static SPISettings spiConfig;
// ------------------------
// Public functions
// ------------------------
#if ENABLED(SOFTWARE_SPI)
// ------------------------
// Software SPI
// ------------------------
#include "../shared/Delay.h"
void spiBegin(void) {
#if PIN_EXISTS(SD_SS)
OUT_WRITE(SD_SS_PIN, HIGH);
#endif
OUT_WRITE(SD_SCK_PIN, HIGH);
SET_INPUT(SD_MISO_PIN);
OUT_WRITE(SD_MOSI_PIN, HIGH);
}
// Use function with compile-time value so we can actually reach the desired frequency
// Need to adjust this a little bit: on a 72MHz clock, we have 14ns/clock
// and we'll use ~3 cycles to jump to the method and going back, so it'll take ~40ns from the given clock here
#define CALLING_COST_NS (3U * 1000000000U) / (F_CPU)
void (*delaySPIFunc)();
void delaySPI_125() { DELAY_NS(125 - CALLING_COST_NS); }
void delaySPI_250() { DELAY_NS(250 - CALLING_COST_NS); }
void delaySPI_500() { DELAY_NS(500 - CALLING_COST_NS); }
void delaySPI_1000() { DELAY_NS(1000 - CALLING_COST_NS); }
void delaySPI_2000() { DELAY_NS(2000 - CALLING_COST_NS); }
void delaySPI_4000() { DELAY_NS(4000 - CALLING_COST_NS); }
void spiInit(uint8_t spiRate) {
// Use datarates Marlin uses
switch (spiRate) {
case SPI_FULL_SPEED: delaySPIFunc = &delaySPI_125; break; // desired: 8,000,000 actual: ~1.1M
case SPI_HALF_SPEED: delaySPIFunc = &delaySPI_125; break; // desired: 4,000,000 actual: ~1.1M
case SPI_QUARTER_SPEED:delaySPIFunc = &delaySPI_250; break; // desired: 2,000,000 actual: ~890K
case SPI_EIGHTH_SPEED: delaySPIFunc = &delaySPI_500; break; // desired: 1,000,000 actual: ~590K
case SPI_SPEED_5: delaySPIFunc = &delaySPI_1000; break; // desired: 500,000 actual: ~360K
case SPI_SPEED_6: delaySPIFunc = &delaySPI_2000; break; // desired: 250,000 actual: ~210K
default: delaySPIFunc = &delaySPI_4000; break; // desired: 125,000 actual: ~123K
}
SPI.begin();
}
// Begin SPI transaction, set clock, bit order, data mode
void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode) { /* do nothing */ }
uint8_t HAL_SPI_STM32_SpiTransfer_Mode_3(uint8_t b) { // using Mode 3
for (uint8_t bits = 8; bits--;) {
WRITE(SD_SCK_PIN, LOW);
WRITE(SD_MOSI_PIN, b & 0x80);
delaySPIFunc();
WRITE(SD_SCK_PIN, HIGH);
delaySPIFunc();
b <<= 1; // little setup time
b |= (READ(SD_MISO_PIN) != 0);
}
DELAY_NS(125);
return b;
}
// Soft SPI receive byte
uint8_t spiRec() {
hal.isr_off(); // No interrupts during byte receive
const uint8_t data = HAL_SPI_STM32_SpiTransfer_Mode_3(0xFF);
hal.isr_on(); // Enable interrupts
return data;
}
// Soft SPI read data
void spiRead(uint8_t *buf, uint16_t nbyte) {
for (uint16_t i = 0; i < nbyte; i++)
buf[i] = spiRec();
}
// Soft SPI send byte
void spiSend(uint8_t data) {
hal.isr_off(); // No interrupts during byte send
HAL_SPI_STM32_SpiTransfer_Mode_3(data); // Don't care what is received
hal.isr_on(); // Enable interrupts
}
// Soft SPI send block
void spiSendBlock(uint8_t token, const uint8_t *buf) {
spiSend(token);
for (uint16_t i = 0; i < 512; i++)
spiSend(buf[i]);
}
#else
// ------------------------
// Hardware SPI
// ------------------------
/**
* VGPV SPI speed start and PCLK2/2, by default 108/2 = 54Mhz
*/
/**
* @brief Begin SPI port setup
*
* @return Nothing
*
* @details Only configures SS pin since stm32duino creates and initialize the SPI object
*/
void spiBegin() {
#if PIN_EXISTS(SD_SS)
OUT_WRITE(SD_SS_PIN, HIGH);
#endif
}
// Configure SPI for specified SPI speed
void spiInit(uint8_t spiRate) {
// Use datarates Marlin uses
uint32_t clock;
switch (spiRate) {
case SPI_FULL_SPEED: clock = 20000000; break; // 13.9mhz=20000000 6.75mhz=10000000 3.38mhz=5000000 .833mhz=1000000
case SPI_HALF_SPEED: clock = 5000000; break;
case SPI_QUARTER_SPEED: clock = 2500000; break;
case SPI_EIGHTH_SPEED: clock = 1250000; break;
case SPI_SPEED_5: clock = 625000; break;
case SPI_SPEED_6: clock = 300000; break;
default:
clock = 4000000; // Default from the SPI library
}
spiConfig = SPISettings(clock, MSBFIRST, SPI_MODE0);
SPI.setMISO(SD_MISO_PIN);
SPI.setMOSI(SD_MOSI_PIN);
SPI.setSCLK(SD_SCK_PIN);
SPI.begin();
}
/**
* @brief Receives a single byte from the SPI port.
*
* @return Byte received
*
* @details
*/
uint8_t spiRec() {
uint8_t returnByte = SPI.transfer(0xFF);
return returnByte;
}
/**
* @brief Receive a number of bytes from the SPI port to a buffer
*
* @param buf Pointer to starting address of buffer to write to.
* @param nbyte Number of bytes to receive.
* @return Nothing
*
* @details Uses DMA
*/
void spiRead(uint8_t *buf, uint16_t nbyte) {
if (nbyte == 0) return;
memset(buf, 0xFF, nbyte);
SPI.transfer(buf, nbyte);
}
/**
* @brief Send a single byte on SPI port
*
* @param b Byte to send
*
* @details
*/
void spiSend(uint8_t b) {
SPI.transfer(b);
}
/**
* @brief Write token and then write from 512 byte buffer to SPI (for SD card)
*
* @param buf Pointer with buffer start address
* @return Nothing
*
* @details Use DMA
*/
void spiSendBlock(uint8_t token, const uint8_t *buf) {
uint8_t rxBuf[512];
SPI.transfer(token);
SPI.transfer((uint8_t*)buf, &rxBuf, 512);
}
#endif // SOFTWARE_SPI
#endif // HAL_STM32

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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#if defined(HAL_STM32) && !defined(STM32H7xx)
#include "MarlinSPI.h"
static void spi_init(spi_t *obj, uint32_t speed, spi_mode_e mode, uint8_t msb, uint32_t dataSize) {
spi_init(obj, speed, mode, msb);
// spi_init set 8bit always
// TODO: copy the code from spi_init and handle data size, to avoid double init always!!
if (dataSize != SPI_DATASIZE_8BIT) {
obj->handle.Init.DataSize = dataSize;
HAL_SPI_Init(&obj->handle);
__HAL_SPI_ENABLE(&obj->handle);
}
}
void MarlinSPI::setClockDivider(uint8_t _div) {
_speed = spi_getClkFreq(&_spi);// / _div;
_clockDivider = _div;
}
void MarlinSPI::begin(void) {
//TODO: only call spi_init if any parameter changed!!
spi_init(&_spi, _speed, _dataMode, _bitOrder, _dataSize);
}
void MarlinSPI::setupDma(SPI_HandleTypeDef &_spiHandle, DMA_HandleTypeDef &_dmaHandle, uint32_t direction, bool minc) {
_dmaHandle.Init.Direction = direction;
_dmaHandle.Init.PeriphInc = DMA_PINC_DISABLE;
_dmaHandle.Init.Mode = DMA_NORMAL;
_dmaHandle.Init.Priority = DMA_PRIORITY_LOW;
_dmaHandle.Init.MemInc = minc ? DMA_MINC_ENABLE : DMA_MINC_DISABLE;
if (_dataSize == DATA_SIZE_8BIT) {
_dmaHandle.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
_dmaHandle.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
}
else {
_dmaHandle.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
_dmaHandle.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
}
#ifdef STM32F4xx
_dmaHandle.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
#endif
// start DMA hardware
// TODO: check if hardware is already enabled
#ifdef SPI1_BASE
if (_spiHandle.Instance == SPI1) {
#ifdef STM32F1xx
__HAL_RCC_DMA1_CLK_ENABLE();
_dmaHandle.Instance = (direction == DMA_MEMORY_TO_PERIPH) ? DMA1_Channel3 : DMA1_Channel2;
#elif defined(STM32F4xx)
__HAL_RCC_DMA2_CLK_ENABLE();
_dmaHandle.Init.Channel = DMA_CHANNEL_3;
_dmaHandle.Instance = (direction == DMA_MEMORY_TO_PERIPH) ? DMA2_Stream3 : DMA2_Stream0;
#endif
}
#endif
#ifdef SPI2_BASE
if (_spiHandle.Instance == SPI2) {
#ifdef STM32F1xx
__HAL_RCC_DMA1_CLK_ENABLE();
_dmaHandle.Instance = (direction == DMA_MEMORY_TO_PERIPH) ? DMA1_Channel5 : DMA1_Channel4;
#elif defined(STM32F4xx)
__HAL_RCC_DMA1_CLK_ENABLE();
_dmaHandle.Init.Channel = DMA_CHANNEL_0;
_dmaHandle.Instance = (direction == DMA_MEMORY_TO_PERIPH) ? DMA1_Stream4 : DMA1_Stream3;
#endif
}
#endif
#ifdef SPI3_BASE
if (_spiHandle.Instance == SPI3) {
#ifdef STM32F1xx
__HAL_RCC_DMA2_CLK_ENABLE();
_dmaHandle.Instance = (direction == DMA_MEMORY_TO_PERIPH) ? DMA2_Channel2 : DMA2_Channel1;
#elif defined(STM32F4xx)
__HAL_RCC_DMA1_CLK_ENABLE();
_dmaHandle.Init.Channel = DMA_CHANNEL_0;
_dmaHandle.Instance = (direction == DMA_MEMORY_TO_PERIPH) ? DMA1_Stream5 : DMA1_Stream2;
#endif
}
#endif
HAL_DMA_Init(&_dmaHandle);
}
byte MarlinSPI::transfer(uint8_t _data) {
uint8_t rxData = 0xFF;
HAL_SPI_TransmitReceive(&_spi.handle, &_data, &rxData, 1, HAL_MAX_DELAY);
return rxData;
}
__STATIC_INLINE void LL_SPI_EnableDMAReq_RX(SPI_TypeDef *SPIx) { SET_BIT(SPIx->CR2, SPI_CR2_RXDMAEN); }
__STATIC_INLINE void LL_SPI_EnableDMAReq_TX(SPI_TypeDef *SPIx) { SET_BIT(SPIx->CR2, SPI_CR2_TXDMAEN); }
uint8_t MarlinSPI::dmaTransfer(const void *transmitBuf, void *receiveBuf, uint16_t length) {
const uint8_t ff = 0xFF;
//if (!LL_SPI_IsEnabled(_spi.handle)) // only enable if disabled
__HAL_SPI_ENABLE(&_spi.handle);
if (receiveBuf) {
setupDma(_spi.handle, _dmaRx, DMA_PERIPH_TO_MEMORY, true);
HAL_DMA_Start(&_dmaRx, (uint32_t)&(_spi.handle.Instance->DR), (uint32_t)receiveBuf, length);
LL_SPI_EnableDMAReq_RX(_spi.handle.Instance); // Enable Rx DMA Request
}
// check for 2 lines transfer
bool mincTransmit = true;
if (transmitBuf == nullptr && _spi.handle.Init.Direction == SPI_DIRECTION_2LINES && _spi.handle.Init.Mode == SPI_MODE_MASTER) {
transmitBuf = &ff;
mincTransmit = false;
}
if (transmitBuf) {
setupDma(_spi.handle, _dmaTx, DMA_MEMORY_TO_PERIPH, mincTransmit);
HAL_DMA_Start(&_dmaTx, (uint32_t)transmitBuf, (uint32_t)&(_spi.handle.Instance->DR), length);
LL_SPI_EnableDMAReq_TX(_spi.handle.Instance); // Enable Tx DMA Request
}
if (transmitBuf) {
HAL_DMA_PollForTransfer(&_dmaTx, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY);
HAL_DMA_Abort(&_dmaTx);
HAL_DMA_DeInit(&_dmaTx);
}
// while ((_spi.handle.Instance->SR & SPI_FLAG_RXNE) != SPI_FLAG_RXNE) {}
if (receiveBuf) {
HAL_DMA_PollForTransfer(&_dmaRx, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY);
HAL_DMA_Abort(&_dmaRx);
HAL_DMA_DeInit(&_dmaRx);
}
return 1;
}
uint8_t MarlinSPI::dmaSend(const void * transmitBuf, uint16_t length, bool minc) {
setupDma(_spi.handle, _dmaTx, DMA_MEMORY_TO_PERIPH, minc);
HAL_DMA_Start(&_dmaTx, (uint32_t)transmitBuf, (uint32_t)&(_spi.handle.Instance->DR), length);
__HAL_SPI_ENABLE(&_spi.handle);
LL_SPI_EnableDMAReq_TX(_spi.handle.Instance); // Enable Tx DMA Request
HAL_DMA_PollForTransfer(&_dmaTx, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY);
HAL_DMA_Abort(&_dmaTx);
// DeInit objects
HAL_DMA_DeInit(&_dmaTx);
return 1;
}
#endif // HAL_STM32 && !STM32H7xx

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Marlin/src/HAL/STM32/MarlinSPI.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#include "HAL.h"
#include <SPI.h>
extern "C" {
#include <utility/spi_com.h>
}
/**
* Marlin currently requires 3 SPI classes:
*
* SPIClass:
* This class is normally provided by frameworks and has a semi-default interface.
* This is needed because some libraries reference it globally.
*
* SPISettings:
* Container for SPI configs for SPIClass. As above, libraries may reference it globally.
*
* These two classes are often provided by frameworks so we cannot extend them to add
* useful methods for Marlin.
*
* MarlinSPI:
* Provides the default SPIClass interface plus some Marlin goodies such as a simplified
* interface for SPI DMA transfer.
*
*/
#define DATA_SIZE_8BIT SPI_DATASIZE_8BIT
#define DATA_SIZE_16BIT SPI_DATASIZE_16BIT
class MarlinSPI {
public:
MarlinSPI() : MarlinSPI(NC, NC, NC, NC) {}
MarlinSPI(pin_t mosi, pin_t miso, pin_t sclk, pin_t ssel = (pin_t)NC) : _mosiPin(mosi), _misoPin(miso), _sckPin(sclk), _ssPin(ssel) {
_spi.pin_miso = digitalPinToPinName(_misoPin);
_spi.pin_mosi = digitalPinToPinName(_mosiPin);
_spi.pin_sclk = digitalPinToPinName(_sckPin);
_spi.pin_ssel = digitalPinToPinName(_ssPin);
_dataSize = DATA_SIZE_8BIT;
_bitOrder = MSBFIRST;
_dataMode = SPI_MODE_0;
_spi.handle.State = HAL_SPI_STATE_RESET;
setClockDivider(SPI_SPEED_CLOCK_DIV2_MHZ);
}
void begin(void);
void end(void) {}
byte transfer(uint8_t _data);
uint8_t dmaTransfer(const void *transmitBuf, void *receiveBuf, uint16_t length);
uint8_t dmaSend(const void * transmitBuf, uint16_t length, bool minc = true);
/* These methods are deprecated and kept for compatibility.
* Use SPISettings with SPI.beginTransaction() to configure SPI parameters.
*/
void setBitOrder(BitOrder _order) { _bitOrder = _order; }
void setDataMode(uint8_t _mode) {
switch (_mode) {
case SPI_MODE0: _dataMode = SPI_MODE_0; break;
case SPI_MODE1: _dataMode = SPI_MODE_1; break;
case SPI_MODE2: _dataMode = SPI_MODE_2; break;
case SPI_MODE3: _dataMode = SPI_MODE_3; break;
}
}
void setClockDivider(uint8_t _div);
private:
void setupDma(SPI_HandleTypeDef &_spiHandle, DMA_HandleTypeDef &_dmaHandle, uint32_t direction, bool minc = false);
spi_t _spi;
DMA_HandleTypeDef _dmaTx;
DMA_HandleTypeDef _dmaRx;
BitOrder _bitOrder;
spi_mode_e _dataMode;
uint8_t _clockDivider;
uint32_t _speed;
uint32_t _dataSize;
pin_t _mosiPin;
pin_t _misoPin;
pin_t _sckPin;
pin_t _ssPin;
};

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Marlin/src/HAL/STM32/MarlinSerial.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
#include "../../inc/MarlinConfig.h"
#include "MarlinSerial.h"
#if ENABLED(EMERGENCY_PARSER)
#include "../../feature/e_parser.h"
#endif
#ifndef USART4
#define USART4 UART4
#endif
#ifndef USART5
#define USART5 UART5
#endif
#define DECLARE_SERIAL_PORT(ser_num) \
void _rx_complete_irq_ ## ser_num (serial_t * obj); \
MSerialT MSerial ## ser_num (true, USART ## ser_num, &_rx_complete_irq_ ## ser_num); \
void _rx_complete_irq_ ## ser_num (serial_t * obj) { MSerial ## ser_num ._rx_complete_irq(obj); }
#if USING_HW_SERIAL1
DECLARE_SERIAL_PORT(1)
#endif
#if USING_HW_SERIAL2
DECLARE_SERIAL_PORT(2)
#endif
#if USING_HW_SERIAL3
DECLARE_SERIAL_PORT(3)
#endif
#if USING_HW_SERIAL4
DECLARE_SERIAL_PORT(4)
#endif
#if USING_HW_SERIAL5
DECLARE_SERIAL_PORT(5)
#endif
#if USING_HW_SERIAL6
DECLARE_SERIAL_PORT(6)
#endif
#if USING_HW_SERIAL7
DECLARE_SERIAL_PORT(7)
#endif
#if USING_HW_SERIAL8
DECLARE_SERIAL_PORT(8)
#endif
#if USING_HW_SERIAL9
DECLARE_SERIAL_PORT(9)
#endif
#if USING_HW_SERIAL10
DECLARE_SERIAL_PORT(10)
#endif
#if USING_HW_SERIALLP1
DECLARE_SERIAL_PORT(LP1)
#endif
void MarlinSerial::begin(unsigned long baud, uint8_t config) {
HardwareSerial::begin(baud, config);
// Replace the IRQ callback with the one we have defined
TERN_(EMERGENCY_PARSER, _serial.rx_callback = _rx_callback);
}
// This function is Copyright (c) 2006 Nicholas Zambetti.
void MarlinSerial::_rx_complete_irq(serial_t *obj) {
// No Parity error, read byte and store it in the buffer if there is room
unsigned char c;
if (uart_getc(obj, &c) == 0) {
rx_buffer_index_t i = (unsigned int)(obj->rx_head + 1) % SERIAL_RX_BUFFER_SIZE;
// if we should be storing the received character into the location
// just before the tail (meaning that the head would advance to the
// current location of the tail), we're about to overflow the buffer
// and so we don't write the character or advance the head.
if (i != obj->rx_tail) {
obj->rx_buff[obj->rx_head] = c;
obj->rx_head = i;
}
#if ENABLED(EMERGENCY_PARSER)
emergency_parser.update(static_cast<MSerialT*>(this)->emergency_state, c);
#endif
}
}
#endif // HAL_STM32

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Marlin/src/HAL/STM32/MarlinSerial.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#include "../../inc/MarlinConfigPre.h"
#if ENABLED(EMERGENCY_PARSER)
#include "../../feature/e_parser.h"
#endif
#include "../../core/serial_hook.h"
typedef void (*usart_rx_callback_t)(serial_t * obj);
struct MarlinSerial : public HardwareSerial {
MarlinSerial(void *peripheral, usart_rx_callback_t rx_callback) :
HardwareSerial(peripheral), _rx_callback(rx_callback)
{ }
void begin(unsigned long baud, uint8_t config);
inline void begin(unsigned long baud) { begin(baud, SERIAL_8N1); }
void _rx_complete_irq(serial_t *obj);
protected:
usart_rx_callback_t _rx_callback;
};
typedef Serial1Class<MarlinSerial> MSerialT;
extern MSerialT MSerial1;
extern MSerialT MSerial2;
extern MSerialT MSerial3;
extern MSerialT MSerial4;
extern MSerialT MSerial5;
extern MSerialT MSerial6;
extern MSerialT MSerial7;
extern MSerialT MSerial8;
extern MSerialT MSerial9;
extern MSerialT MSerial10;
extern MSerialT MSerialLP1;

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Marlin/src/HAL/STM32/MinSerial.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
* Copyright (c) 2017 Victor Perez
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
#include "../../inc/MarlinConfigPre.h"
#if ENABLED(POSTMORTEM_DEBUGGING)
#include "../shared/MinSerial.h"
/* Instruction Synchronization Barrier */
#define isb() __asm__ __volatile__ ("isb" : : : "memory")
/* Data Synchronization Barrier */
#define dsb() __asm__ __volatile__ ("dsb" : : : "memory")
// Dumb mapping over the registers of a USART device on STM32
struct USARTMin {
volatile uint32_t SR;
volatile uint32_t DR;
volatile uint32_t BRR;
volatile uint32_t CR1;
volatile uint32_t CR2;
};
#if WITHIN(SERIAL_PORT, 1, 6)
// Depending on the CPU, the serial port is different for USART1
static const uintptr_t regsAddr[] = {
TERN(STM32F1xx, 0x40013800, 0x40011000), // USART1
0x40004400, // USART2
0x40004800, // USART3
0x40004C00, // UART4_BASE
0x40005000, // UART5_BASE
0x40011400 // USART6
};
static USARTMin * regs = (USARTMin*)regsAddr[SERIAL_PORT - 1];
#endif
static void TXBegin() {
#if !WITHIN(SERIAL_PORT, 1, 6)
#warning "Using POSTMORTEM_DEBUGGING requires a physical U(S)ART hardware in case of severe error."
#warning "Disabling the severe error reporting feature currently because the used serial port is not a HW port."
#else
// This is common between STM32F1/STM32F2 and STM32F4
const int nvicUART[] = { /* NVIC_USART1 */ 37, /* NVIC_USART2 */ 38, /* NVIC_USART3 */ 39, /* NVIC_UART4 */ 52, /* NVIC_UART5 */ 53, /* NVIC_USART6 */ 71 };
int nvicIndex = nvicUART[SERIAL_PORT - 1];
struct NVICMin {
volatile uint32_t ISER[32];
volatile uint32_t ICER[32];
};
NVICMin *nvicBase = (NVICMin*)0xE000E100;
SBI32(nvicBase->ICER[nvicIndex >> 5], nvicIndex & 0x1F);
// We NEED memory barriers to ensure Interrupts are actually disabled!
// ( https://dzone.com/articles/nvic-disabling-interrupts-on-arm-cortex-m-and-the )
dsb();
isb();
// Example for USART1 disable: (RCC->APB2ENR &= ~(RCC_APB2ENR_USART1EN))
// Too difficult to reimplement here, let's query the STM32duino macro here
#if SERIAL_PORT == 1
__HAL_RCC_USART1_CLK_DISABLE();
__HAL_RCC_USART1_CLK_ENABLE();
#elif SERIAL_PORT == 2
__HAL_RCC_USART2_CLK_DISABLE();
__HAL_RCC_USART2_CLK_ENABLE();
#elif SERIAL_PORT == 3
__HAL_RCC_USART3_CLK_DISABLE();
__HAL_RCC_USART3_CLK_ENABLE();
#elif SERIAL_PORT == 4
__HAL_RCC_UART4_CLK_DISABLE(); // BEWARE: UART4 and not USART4 here
__HAL_RCC_UART4_CLK_ENABLE();
#elif SERIAL_PORT == 5
__HAL_RCC_UART5_CLK_DISABLE(); // BEWARE: UART5 and not USART5 here
__HAL_RCC_UART5_CLK_ENABLE();
#elif SERIAL_PORT == 6
__HAL_RCC_USART6_CLK_DISABLE();
__HAL_RCC_USART6_CLK_ENABLE();
#endif
uint32_t brr = regs->BRR;
regs->CR1 = 0; // Reset the USART
regs->CR2 = 0; // 1 stop bit
// If we don't touch the BRR (baudrate register), we don't need to recompute.
regs->BRR = brr;
regs->CR1 = _BV(3) | _BV(13); // 8 bits, no parity, 1 stop bit (TE | UE)
#endif
}
// A SW memory barrier, to ensure GCC does not overoptimize loops
#define sw_barrier() __asm__ volatile("": : :"memory");
static void TX(char c) {
#if WITHIN(SERIAL_PORT, 1, 6)
constexpr uint32_t usart_sr_txe = _BV(7);
while (!(regs->SR & usart_sr_txe)) {
hal.watchdog_refresh();
sw_barrier();
}
regs->DR = c;
#else
// Let's hope a mystical guru will fix this, one day by writing interrupt-free USB CDC ACM code (or, at least, by polling the registers since interrupt will be queued but will never trigger)
// For now, it's completely lost to oblivion.
#endif
}
void install_min_serial() {
HAL_min_serial_init = &TXBegin;
HAL_min_serial_out = &TX;
}
#if NONE(DYNAMIC_VECTORTABLE, STM32F0xx, STM32G0xx) // Cortex M0 can't jump to a symbol that's too far from the current function, so we work around this in exception_arm.cpp
extern "C" {
__attribute__((naked)) void JumpHandler_ASM() {
__asm__ __volatile__ (
"b CommonHandler_ASM\n"
);
}
void __attribute__((naked, alias("JumpHandler_ASM"), nothrow)) HardFault_Handler();
void __attribute__((naked, alias("JumpHandler_ASM"), nothrow)) BusFault_Handler();
void __attribute__((naked, alias("JumpHandler_ASM"), nothrow)) UsageFault_Handler();
void __attribute__((naked, alias("JumpHandler_ASM"), nothrow)) MemManage_Handler();
void __attribute__((naked, alias("JumpHandler_ASM"), nothrow)) NMI_Handler();
}
#endif
#endif // POSTMORTEM_DEBUGGING
#endif // HAL_STM32

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Marlin/src/HAL/STM32/README.md
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# Generic STM32 HAL based on the stm32duino core
This HAL is intended to act as the generic STM32 HAL for all STM32 chips (The whole F, H and L family).
Currently it supports:
* STM32F0xx
* STM32F1xx
* STM32F4xx
* STM32F7xx
Targeting the official [Arduino STM32 Core](https://github.com/stm32duino/Arduino_Core_STM32).

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Marlin/src/HAL/STM32/Servo.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
* Copyright (c) 2017 Victor Perez
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
#include "../../inc/MarlinConfig.h"
#if HAS_SERVOS
#include "Servo.h"
static uint_fast8_t servoCount = 0;
static libServo *servos[NUM_SERVOS] = {0};
constexpr millis_t servoDelay[] = SERVO_DELAY;
static_assert(COUNT(servoDelay) == NUM_SERVOS, "SERVO_DELAY must be an array NUM_SERVOS long.");
// Initialize to the default timer priority. This will be overridden by a call from timers.cpp.
// This allows all timer interrupt priorities to be managed from a single location in the HAL.
static uint32_t servo_interrupt_priority = NVIC_EncodePriority(NVIC_GetPriorityGrouping(), TIM_IRQ_PRIO, TIM_IRQ_SUBPRIO);
// This must be called after the STM32 Servo class has initialized the timer.
// It may only be needed after the first call to attach(), but it is possible
// that is is necessary after every detach() call. To be safe this is currently
// called after every call to attach().
static void fixServoTimerInterruptPriority() {
NVIC_SetPriority(getTimerUpIrq(TIMER_SERVO), servo_interrupt_priority);
}
libServo::libServo()
: delay(servoDelay[servoCount]),
was_attached_before_pause(false),
value_before_pause(0)
{
servos[servoCount++] = this;
}
int8_t libServo::attach(const int pin) {
if (servoCount >= MAX_SERVOS) return -1;
if (pin > 0) servo_pin = pin;
auto result = stm32_servo.attach(servo_pin);
fixServoTimerInterruptPriority();
return result;
}
int8_t libServo::attach(const int pin, const int min, const int max) {
if (servoCount >= MAX_SERVOS) return -1;
if (pin > 0) servo_pin = pin;
auto result = stm32_servo.attach(servo_pin, min, max);
fixServoTimerInterruptPriority();
return result;
}
void libServo::move(const int value) {
if (attach(0) >= 0) {
stm32_servo.write(value);
safe_delay(delay);
TERN_(DEACTIVATE_SERVOS_AFTER_MOVE, detach());
}
}
void libServo::pause() {
was_attached_before_pause = stm32_servo.attached();
if (was_attached_before_pause) {
value_before_pause = stm32_servo.read();
stm32_servo.detach();
}
}
void libServo::resume() {
if (was_attached_before_pause) {
attach();
move(value_before_pause);
}
}
void libServo::pause_all_servos() {
for (auto& servo : servos)
if (servo) servo->pause();
}
void libServo::resume_all_servos() {
for (auto& servo : servos)
if (servo) servo->resume();
}
void libServo::setInterruptPriority(uint32_t preemptPriority, uint32_t subPriority) {
servo_interrupt_priority = NVIC_EncodePriority(NVIC_GetPriorityGrouping(), preemptPriority, subPriority);
}
#endif // HAS_SERVOS
#endif // HAL_STM32

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Marlin/src/HAL/STM32/Servo.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
* Copyright (c) 2017 Victor Perez
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#include <Servo.h>
#include "../../core/millis_t.h"
// Inherit and expand on the official library
class libServo {
public:
libServo();
int8_t attach(const int pin = 0); // pin == 0 uses value from previous call
int8_t attach(const int pin, const int min, const int max);
void detach() { stm32_servo.detach(); }
int read() { return stm32_servo.read(); }
void move(const int value);
void pause();
void resume();
static void pause_all_servos();
static void resume_all_servos();
static void setInterruptPriority(uint32_t preemptPriority, uint32_t subPriority);
private:
Servo stm32_servo;
int servo_pin = 0;
millis_t delay = 0;
bool was_attached_before_pause;
int value_before_pause;
};

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Marlin/src/HAL/STM32/eeprom_bl24cxx.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
/**
* PersistentStore for Arduino-style EEPROM interface
* with simple implementations supplied by Marlin.
*/
#include "../../inc/MarlinConfig.h"
#if ENABLED(IIC_BL24CXX_EEPROM)
#include "../shared/eeprom_if.h"
#include "../shared/eeprom_api.h"
//
// PersistentStore
//
#ifndef MARLIN_EEPROM_SIZE
#error "MARLIN_EEPROM_SIZE is required for IIC_BL24CXX_EEPROM."
#endif
size_t PersistentStore::capacity() { return MARLIN_EEPROM_SIZE; }
bool PersistentStore::access_start() { eeprom_init(); return true; }
bool PersistentStore::access_finish() { return true; }
bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
uint16_t written = 0;
while (size--) {
uint8_t v = *value;
uint8_t * const p = (uint8_t * const)pos;
if (v != eeprom_read_byte(p)) { // EEPROM has only ~100,000 write cycles, so only write bytes that have changed!
eeprom_write_byte(p, v);
if (++written & 0x7F) delay(2); else safe_delay(2); // Avoid triggering watchdog during long EEPROM writes
if (eeprom_read_byte(p) != v) {
SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
return true;
}
}
crc16(crc, &v, 1);
pos++;
value++;
}
return false;
}
bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
do {
uint8_t * const p = (uint8_t * const)pos;
uint8_t c = eeprom_read_byte(p);
if (writing) *value = c;
crc16(crc, &c, 1);
pos++;
value++;
} while (--size);
return false;
}
#endif // IIC_BL24CXX_EEPROM
#endif // HAL_STM32

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Marlin/src/HAL/STM32/eeprom_flash.cpp
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/**
* Marlin 3D Printer Firmware
*
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
* Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
* Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
* Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
#include "../../inc/MarlinConfig.h"
#if ENABLED(FLASH_EEPROM_EMULATION)
#include "../shared/eeprom_api.h"
// Better: "utility/stm32_eeprom.h", but only after updating stm32duino to 2.0.0
// Use EEPROM.h for compatibility, for now.
#include <EEPROM.h>
/**
* The STM32 HAL supports chips that deal with "pages" and some with "sectors" and some that
* even have multiple "banks" of flash.
*
* This code is a bit of a mashup of
* framework-arduinoststm32/cores/arduino/stm32/stm32_eeprom.c
* hal/hal_lpc1768/persistent_store_flash.cpp
*
* This has only be written against those that use a single "sector" design.
*
* Those that deal with "pages" could be made to work. Looking at the STM32F07 for example, there are
* 128 "pages", each 2kB in size. If we continued with our EEPROM being 4Kb, we'd always need to operate
* on 2 of these pages. Each write, we'd use 2 different pages from a pool of pages until we are done.
*/
#if ENABLED(FLASH_EEPROM_LEVELING)
#include "stm32_def.h"
#define DEBUG_OUT ENABLED(EEPROM_CHITCHAT)
#include "../../core/debug_out.h"
#ifndef MARLIN_EEPROM_SIZE
#define MARLIN_EEPROM_SIZE 0x1000 // 4KB
#endif
#ifndef FLASH_SECTOR
#define FLASH_SECTOR (FLASH_SECTOR_TOTAL - 1)
#endif
#ifndef FLASH_UNIT_SIZE
#define FLASH_UNIT_SIZE 0x20000 // 128kB
#endif
#ifndef FLASH_ADDRESS_START
#define FLASH_ADDRESS_START (FLASH_END - ((FLASH_SECTOR_TOTAL - (FLASH_SECTOR)) * (FLASH_UNIT_SIZE)) + 1)
#endif
#define FLASH_ADDRESS_END (FLASH_ADDRESS_START + FLASH_UNIT_SIZE - 1)
#define EEPROM_SLOTS ((FLASH_UNIT_SIZE) / (MARLIN_EEPROM_SIZE))
#define SLOT_ADDRESS(slot) (FLASH_ADDRESS_START + (slot * (MARLIN_EEPROM_SIZE)))
#define UNLOCK_FLASH() if (!flash_unlocked) { \
HAL_FLASH_Unlock(); \
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | \
FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR); \
flash_unlocked = true; \
}
#define LOCK_FLASH() if (flash_unlocked) { HAL_FLASH_Lock(); flash_unlocked = false; }
#define EMPTY_UINT32 ((uint32_t)-1)
#define EMPTY_UINT8 ((uint8_t)-1)
static uint8_t ram_eeprom[MARLIN_EEPROM_SIZE] __attribute__((aligned(4))) = {0};
static int current_slot = -1;
static_assert(0 == MARLIN_EEPROM_SIZE % 4, "MARLIN_EEPROM_SIZE must be a multiple of 4"); // Ensure copying as uint32_t is safe
static_assert(0 == FLASH_UNIT_SIZE % MARLIN_EEPROM_SIZE, "MARLIN_EEPROM_SIZE must divide evenly into your FLASH_UNIT_SIZE");
static_assert(FLASH_UNIT_SIZE >= MARLIN_EEPROM_SIZE, "FLASH_UNIT_SIZE must be greater than or equal to your MARLIN_EEPROM_SIZE");
static_assert(IS_FLASH_SECTOR(FLASH_SECTOR), "FLASH_SECTOR is invalid");
static_assert(IS_POWER_OF_2(FLASH_UNIT_SIZE), "FLASH_UNIT_SIZE should be a power of 2, please check your chip's spec sheet");
#endif // FLASH_EEPROM_LEVELING
static bool eeprom_data_written = false;
#ifndef MARLIN_EEPROM_SIZE
#define MARLIN_EEPROM_SIZE size_t(E2END + 1)
#endif
size_t PersistentStore::capacity() { return MARLIN_EEPROM_SIZE; }
bool PersistentStore::access_start() {
EEPROM.begin(); // Avoid STM32 EEPROM.h warning (do nothing)
#if ENABLED(FLASH_EEPROM_LEVELING)
if (current_slot == -1 || eeprom_data_written) {
// This must be the first time since power on that we have accessed the storage, or someone
// loaded and called write_data and never called access_finish.
// Lets go looking for the slot that holds our configuration.
if (eeprom_data_written) DEBUG_ECHOLNPGM("Dangling EEPROM write_data");
uint32_t address = FLASH_ADDRESS_START;
while (address <= FLASH_ADDRESS_END) {
uint32_t address_value = (*(__IO uint32_t*)address);
if (address_value != EMPTY_UINT32) {
current_slot = (address - (FLASH_ADDRESS_START)) / (MARLIN_EEPROM_SIZE);
break;
}
address += sizeof(uint32_t);
}
if (current_slot == -1) {
// We didn't find anything, so we'll just initialize to empty
for (int i = 0; i < MARLIN_EEPROM_SIZE; i++) ram_eeprom[i] = EMPTY_UINT8;
current_slot = EEPROM_SLOTS;
}
else {
// load current settings
uint8_t *eeprom_data = (uint8_t *)SLOT_ADDRESS(current_slot);
for (int i = 0; i < MARLIN_EEPROM_SIZE; i++) ram_eeprom[i] = eeprom_data[i];
DEBUG_ECHOLNPGM("EEPROM loaded from slot ", current_slot, ".");
}
eeprom_data_written = false;
}
#else
eeprom_buffer_fill();
#endif
return true;
}
bool PersistentStore::access_finish() {
if (eeprom_data_written) {
#ifdef STM32F4xx
// MCU may come up with flash error bits which prevent some flash operations.
// Clear flags prior to flash operations to prevent errors.
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
#endif
#if ENABLED(FLASH_EEPROM_LEVELING)
HAL_StatusTypeDef status = HAL_ERROR;
bool flash_unlocked = false;
if (--current_slot < 0) {
// all slots have been used, erase everything and start again
FLASH_EraseInitTypeDef EraseInitStruct;
uint32_t SectorError = 0;
EraseInitStruct.TypeErase = FLASH_TYPEERASE_SECTORS;
EraseInitStruct.VoltageRange = FLASH_VOLTAGE_RANGE_3;
EraseInitStruct.Sector = FLASH_SECTOR;
EraseInitStruct.NbSectors = 1;
current_slot = EEPROM_SLOTS - 1;
UNLOCK_FLASH();
TERN_(HAS_PAUSE_SERVO_OUTPUT, PAUSE_SERVO_OUTPUT());
hal.isr_off();
status = HAL_FLASHEx_Erase(&EraseInitStruct, &SectorError);
hal.isr_on();
TERN_(HAS_PAUSE_SERVO_OUTPUT, RESUME_SERVO_OUTPUT());
if (status != HAL_OK) {
DEBUG_ECHOLNPGM("HAL_FLASHEx_Erase=", status);
DEBUG_ECHOLNPGM("GetError=", HAL_FLASH_GetError());
DEBUG_ECHOLNPGM("SectorError=", SectorError);
LOCK_FLASH();
return false;
}
}
UNLOCK_FLASH();
uint32_t offset = 0,
address = SLOT_ADDRESS(current_slot),
address_end = address + MARLIN_EEPROM_SIZE,
data = 0;
bool success = true;
while (address < address_end) {
memcpy(&data, ram_eeprom + offset, sizeof(data));
status = HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, address, data);
if (status == HAL_OK) {
address += sizeof(uint32_t);
offset += sizeof(uint32_t);
}
else {
DEBUG_ECHOLNPGM("HAL_FLASH_Program=", status);
DEBUG_ECHOLNPGM("GetError=", HAL_FLASH_GetError());
DEBUG_ECHOLNPGM("address=", address);
success = false;
break;
}
}
LOCK_FLASH();
if (success) {
eeprom_data_written = false;
DEBUG_ECHOLNPGM("EEPROM saved to slot ", current_slot, ".");
}
return success;
#else // !FLASH_EEPROM_LEVELING
// The following was written for the STM32F4 but may work with other MCUs as well.
// Most STM32F4 flash does not allow reading from flash during erase operations.
// This takes about a second on a STM32F407 with a 128kB sector used as EEPROM.
// Interrupts during this time can have unpredictable results, such as killing Servo
// output. Servo output still glitches with interrupts disabled, but recovers after the
// erase.
TERN_(HAS_PAUSE_SERVO_OUTPUT, PAUSE_SERVO_OUTPUT());
hal.isr_off();
eeprom_buffer_flush();
hal.isr_on();
TERN_(HAS_PAUSE_SERVO_OUTPUT, RESUME_SERVO_OUTPUT());
eeprom_data_written = false;
#endif // !FLASH_EEPROM_LEVELING
}
return true;
}
bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
while (size--) {
uint8_t v = *value;
#if ENABLED(FLASH_EEPROM_LEVELING)
if (v != ram_eeprom[pos]) {
ram_eeprom[pos] = v;
eeprom_data_written = true;
}
#else
if (v != eeprom_buffered_read_byte(pos)) {
eeprom_buffered_write_byte(pos, v);
eeprom_data_written = true;
}
#endif
crc16(crc, &v, 1);
pos++;
value++;
}
return false;
}
bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
do {
const uint8_t c = TERN(FLASH_EEPROM_LEVELING, ram_eeprom[pos], eeprom_buffered_read_byte(pos));
if (writing) *value = c;
crc16(crc, &c, 1);
pos++;
value++;
} while (--size);
return false;
}
#endif // FLASH_EEPROM_EMULATION
#endif // HAL_STM32

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Marlin/src/HAL/STM32/eeprom_if_iic.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
/**
* Platform-independent Arduino functions for I2C EEPROM.
* Enable USE_SHARED_EEPROM if not supplied by the framework.
*/
#include "../../inc/MarlinConfig.h"
#if ENABLED(IIC_BL24CXX_EEPROM)
#include "../../libs/BL24CXX.h"
#include "../shared/eeprom_if.h"
void eeprom_init() { BL24CXX::init(); }
// ------------------------
// Public functions
// ------------------------
void eeprom_write_byte(uint8_t *pos, uint8_t value) {
const unsigned eeprom_address = (unsigned)pos;
return BL24CXX::writeOneByte(eeprom_address, value);
}
uint8_t eeprom_read_byte(uint8_t *pos) {
const unsigned eeprom_address = (unsigned)pos;
return BL24CXX::readOneByte(eeprom_address);
}
#endif // IIC_BL24CXX_EEPROM
#endif // HAL_STM32

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Marlin/src/HAL/STM32/eeprom_sdcard.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
/**
* Implementation of EEPROM settings in SD Card
*/
#include "../../inc/MarlinConfig.h"
#if ENABLED(SDCARD_EEPROM_EMULATION)
#include "../shared/eeprom_api.h"
#include "../../sd/cardreader.h"
#define EEPROM_FILENAME "eeprom.dat"
#ifndef MARLIN_EEPROM_SIZE
#define MARLIN_EEPROM_SIZE 0x1000 // 4KB
#endif
size_t PersistentStore::capacity() { return MARLIN_EEPROM_SIZE; }
#define _ALIGN(x) __attribute__ ((aligned(x)))
static char _ALIGN(4) HAL_eeprom_data[MARLIN_EEPROM_SIZE];
bool PersistentStore::access_start() {
if (!card.isMounted()) return false;
SdFile file, root = card.getroot();
if (!file.open(&root, EEPROM_FILENAME, O_RDONLY))
return true;
int bytes_read = file.read(HAL_eeprom_data, MARLIN_EEPROM_SIZE);
if (bytes_read < 0) return false;
for (; bytes_read < MARLIN_EEPROM_SIZE; bytes_read++)
HAL_eeprom_data[bytes_read] = 0xFF;
file.close();
return true;
}
bool PersistentStore::access_finish() {
if (!card.isMounted()) return false;
SdFile file, root = card.getroot();
int bytes_written = 0;
if (file.open(&root, EEPROM_FILENAME, O_CREAT | O_WRITE | O_TRUNC)) {
bytes_written = file.write(HAL_eeprom_data, MARLIN_EEPROM_SIZE);
file.close();
}
return (bytes_written == MARLIN_EEPROM_SIZE);
}
bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
for (size_t i = 0; i < size; i++)
HAL_eeprom_data[pos + i] = value[i];
crc16(crc, value, size);
pos += size;
return false;
}
bool PersistentStore::read_data(int &pos, uint8_t *value, const size_t size, uint16_t *crc, const bool writing/*=true*/) {
for (size_t i = 0; i < size; i++) {
uint8_t c = HAL_eeprom_data[pos + i];
if (writing) value[i] = c;
crc16(crc, &c, 1);
}
pos += size;
return false;
}
#endif // SDCARD_EEPROM_EMULATION
#endif // HAL_STM32

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Marlin/src/HAL/STM32/eeprom_sram.cpp
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/**
* Marlin 3D Printer Firmware
*
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
* Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
* Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
* Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
#include "../../inc/MarlinConfig.h"
#if ENABLED(SRAM_EEPROM_EMULATION)
#include "../shared/eeprom_if.h"
#include "../shared/eeprom_api.h"
#ifndef MARLIN_EEPROM_SIZE
#define MARLIN_EEPROM_SIZE 0x1000 // 4KB
#endif
size_t PersistentStore::capacity() { return MARLIN_EEPROM_SIZE; }
bool PersistentStore::access_start() { return true; }
bool PersistentStore::access_finish() { return true; }
bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
while (size--) {
uint8_t v = *value;
// Save to Backup SRAM
*(__IO uint8_t *)(BKPSRAM_BASE + (uint8_t * const)pos) = v;
crc16(crc, &v, 1);
pos++;
value++;
};
return false;
}
bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
do {
// Read from either external EEPROM, program flash or Backup SRAM
const uint8_t c = ( *(__IO uint8_t *)(BKPSRAM_BASE + ((uint8_t*)pos)) );
if (writing) *value = c;
crc16(crc, &c, 1);
pos++;
value++;
} while (--size);
return false;
}
#endif // SRAM_EEPROM_EMULATION
#endif // HAL_STM32

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Marlin/src/HAL/STM32/eeprom_wired.cpp
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/**
* Marlin 3D Printer Firmware
*
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
* Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
* Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
* Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
#include "../../inc/MarlinConfig.h"
#if USE_WIRED_EEPROM
/**
* PersistentStore for Arduino-style EEPROM interface
* with simple implementations supplied by Marlin.
*/
#include "../shared/eeprom_if.h"
#include "../shared/eeprom_api.h"
#ifndef MARLIN_EEPROM_SIZE
#define MARLIN_EEPROM_SIZE size_t(E2END + 1)
#endif
size_t PersistentStore::capacity() { return MARLIN_EEPROM_SIZE; }
bool PersistentStore::access_start() { eeprom_init(); return true; }
bool PersistentStore::access_finish() { return true; }
bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
uint16_t written = 0;
while (size--) {
uint8_t v = *value;
uint8_t * const p = (uint8_t * const)pos;
if (v != eeprom_read_byte(p)) { // EEPROM has only ~100,000 write cycles, so only write bytes that have changed!
eeprom_write_byte(p, v);
if (++written & 0x7F) delay(2); else safe_delay(2); // Avoid triggering watchdog during long EEPROM writes
if (eeprom_read_byte(p) != v) {
SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
return true;
}
}
crc16(crc, &v, 1);
pos++;
value++;
}
return false;
}
bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
do {
// Read from either external EEPROM, program flash or Backup SRAM
const uint8_t c = eeprom_read_byte((uint8_t*)pos);
if (writing) *value = c;
crc16(crc, &c, 1);
pos++;
value++;
} while (--size);
return false;
}
#endif // USE_WIRED_EEPROM
#endif // HAL_STM32

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Marlin/src/HAL/STM32/endstop_interrupts.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
* Copyright (c) 2017 Victor Perez
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#include "../../module/endstops.h"
// One ISR for all EXT-Interrupts
void endstop_ISR() { endstops.update(); }
void setup_endstop_interrupts() {
#define _ATTACH(P) attachInterrupt(P, endstop_ISR, CHANGE)
TERN_(HAS_X_MAX, _ATTACH(X_MAX_PIN));
TERN_(HAS_X_MIN, _ATTACH(X_MIN_PIN));
TERN_(HAS_Y_MAX, _ATTACH(Y_MAX_PIN));
TERN_(HAS_Y_MIN, _ATTACH(Y_MIN_PIN));
TERN_(HAS_Z_MAX, _ATTACH(Z_MAX_PIN));
TERN_(HAS_Z_MIN, _ATTACH(Z_MIN_PIN));
TERN_(HAS_X2_MAX, _ATTACH(X2_MAX_PIN));
TERN_(HAS_X2_MIN, _ATTACH(X2_MIN_PIN));
TERN_(HAS_Y2_MAX, _ATTACH(Y2_MAX_PIN));
TERN_(HAS_Y2_MIN, _ATTACH(Y2_MIN_PIN));
TERN_(HAS_Z2_MAX, _ATTACH(Z2_MAX_PIN));
TERN_(HAS_Z2_MIN, _ATTACH(Z2_MIN_PIN));
TERN_(HAS_Z3_MAX, _ATTACH(Z3_MAX_PIN));
TERN_(HAS_Z3_MIN, _ATTACH(Z3_MIN_PIN));
TERN_(HAS_Z4_MAX, _ATTACH(Z4_MAX_PIN));
TERN_(HAS_Z4_MIN, _ATTACH(Z4_MIN_PIN));
TERN_(HAS_Z_MIN_PROBE_PIN, _ATTACH(Z_MIN_PROBE_PIN));
TERN_(HAS_I_MAX, _ATTACH(I_MAX_PIN));
TERN_(HAS_I_MIN, _ATTACH(I_MIN_PIN));
TERN_(HAS_J_MAX, _ATTACH(J_MAX_PIN));
TERN_(HAS_J_MIN, _ATTACH(J_MIN_PIN));
TERN_(HAS_K_MAX, _ATTACH(K_MAX_PIN));
TERN_(HAS_K_MIN, _ATTACH(K_MIN_PIN));
TERN_(HAS_U_MAX, _ATTACH(U_MAX_PIN));
TERN_(HAS_U_MIN, _ATTACH(U_MIN_PIN));
TERN_(HAS_V_MAX, _ATTACH(V_MAX_PIN));
TERN_(HAS_V_MIN, _ATTACH(V_MIN_PIN));
TERN_(HAS_W_MAX, _ATTACH(W_MAX_PIN));
TERN_(HAS_W_MIN, _ATTACH(W_MIN_PIN));
}

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Marlin/src/HAL/STM32/fast_pwm.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
#include "../../inc/MarlinConfig.h"
// Array to support sticky frequency sets per timer
static uint16_t timer_freq[TIMER_NUM];
void MarlinHAL::set_pwm_duty(const pin_t pin, const uint16_t v, const uint16_t v_size/*=255*/, const bool invert/*=false*/) {
const uint16_t duty = invert ? v_size - v : v;
if (PWM_PIN(pin)) {
const PinName pin_name = digitalPinToPinName(pin);
TIM_TypeDef * const Instance = (TIM_TypeDef *)pinmap_peripheral(pin_name, PinMap_PWM);
const timer_index_t index = get_timer_index(Instance);
const bool needs_freq = (HardwareTimer_Handle[index] == nullptr);
if (needs_freq) // A new instance must be set to the default frequency of PWM_FREQUENCY
HardwareTimer_Handle[index]->__this = new HardwareTimer((TIM_TypeDef *)pinmap_peripheral(pin_name, PinMap_PWM));
HardwareTimer * const HT = (HardwareTimer *)(HardwareTimer_Handle[index]->__this);
const uint32_t channel = STM_PIN_CHANNEL(pinmap_function(pin_name, PinMap_PWM));
const TimerModes_t previousMode = HT->getMode(channel);
if (previousMode != TIMER_OUTPUT_COMPARE_PWM1)
HT->setMode(channel, TIMER_OUTPUT_COMPARE_PWM1, pin);
if (needs_freq && timer_freq[index] == 0) // If the timer is unconfigured and no freq is set then default PWM_FREQUENCY
set_pwm_frequency(pin_name, PWM_FREQUENCY); // Set the frequency and save the value to the assigned index no.
// Note the resolution is sticky here, the input can be upto 16 bits and that would require RESOLUTION_16B_COMPARE_FORMAT (16)
// If such a need were to manifest then we would need to calc the resolution based on the v_size parameter and add code for it.
HT->setCaptureCompare(channel, duty, RESOLUTION_8B_COMPARE_FORMAT); // Set the duty, the calc is done in the library :)
pinmap_pinout(pin_name, PinMap_PWM); // Make sure the pin output state is set.
if (previousMode != TIMER_OUTPUT_COMPARE_PWM1) HT->resume();
}
else {
pinMode(pin, OUTPUT);
digitalWrite(pin, duty < v_size / 2 ? LOW : HIGH);
}
}
void MarlinHAL::set_pwm_frequency(const pin_t pin, const uint16_t f_desired) {
if (!PWM_PIN(pin)) return; // Don't proceed if no hardware timer
const PinName pin_name = digitalPinToPinName(pin);
TIM_TypeDef * const Instance = (TIM_TypeDef *)pinmap_peripheral(pin_name, PinMap_PWM); // Get HAL timer instance
const timer_index_t index = get_timer_index(Instance);
// Protect used timers.
#ifdef STEP_TIMER
if (index == TIMER_INDEX(STEP_TIMER)) return;
#endif
#ifdef TEMP_TIMER
if (index == TIMER_INDEX(TEMP_TIMER)) return;
#endif
#if defined(PULSE_TIMER) && MF_TIMER_PULSE != MF_TIMER_STEP
if (index == TIMER_INDEX(PULSE_TIMER)) return;
#endif
if (HardwareTimer_Handle[index] == nullptr) // If frequency is set before duty we need to create a handle here.
HardwareTimer_Handle[index]->__this = new HardwareTimer((TIM_TypeDef *)pinmap_peripheral(pin_name, PinMap_PWM));
HardwareTimer * const HT = (HardwareTimer *)(HardwareTimer_Handle[index]->__this);
HT->setOverflow(f_desired, HERTZ_FORMAT);
timer_freq[index] = f_desired; // Save the last frequency so duty will not set the default for this timer number.
}
#endif // HAL_STM32

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Marlin/src/HAL/STM32/fastio.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
* Copyright (c) 2017 Victor Perez
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
#include "../../inc/MarlinConfig.h"
GPIO_TypeDef* FastIOPortMap[LastPort + 1] = { 0 };
void FastIO_init() {
LOOP_L_N(i, NUM_DIGITAL_PINS)
FastIOPortMap[STM_PORT(digitalPin[i])] = get_GPIO_Port(STM_PORT(digitalPin[i]));
}
#endif // HAL_STM32

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Marlin/src/HAL/STM32/fastio.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
* Copyright (c) 2017 Victor Perez
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* Fast I/O interfaces for STM32
* These use GPIO register access for fast port manipulation.
*/
// ------------------------
// Public Variables
// ------------------------
extern GPIO_TypeDef * FastIOPortMap[];
// ------------------------
// Public functions
// ------------------------
void FastIO_init(); // Must be called before using fast io macros
#define FASTIO_INIT() FastIO_init()
// ------------------------
// Defines
// ------------------------
#define _BV32(b) (1UL << (b))
#ifndef PWM
#define PWM OUTPUT
#endif
#if defined(STM32F0xx) || defined(STM32F1xx) || defined(STM32F3xx) || defined(STM32L0xx) || defined(STM32L4xx)
#define _WRITE(IO, V) do { \
if (V) FastIOPortMap[STM_PORT(digitalPinToPinName(IO))]->BSRR = _BV32(STM_PIN(digitalPinToPinName(IO))) ; \
else FastIOPortMap[STM_PORT(digitalPinToPinName(IO))]->BRR = _BV32(STM_PIN(digitalPinToPinName(IO))) ; \
}while(0)
#else
#define _WRITE(IO, V) (FastIOPortMap[STM_PORT(digitalPinToPinName(IO))]->BSRR = _BV32(STM_PIN(digitalPinToPinName(IO)) + ((V) ? 0 : 16)))
#endif
#define _READ(IO) bool(READ_BIT(FastIOPortMap[STM_PORT(digitalPinToPinName(IO))]->IDR, _BV32(STM_PIN(digitalPinToPinName(IO)))))
#define _TOGGLE(IO) TBI32(FastIOPortMap[STM_PORT(digitalPinToPinName(IO))]->ODR, STM_PIN(digitalPinToPinName(IO)))
#define _GET_MODE(IO)
#define _SET_MODE(IO,M) pinMode(IO, M)
#define _SET_OUTPUT(IO) pinMode(IO, OUTPUT) //!< Output Push Pull Mode & GPIO_NOPULL
#define _SET_OUTPUT_OD(IO) pinMode(IO, OUTPUT_OPEN_DRAIN)
#define WRITE(IO,V) _WRITE(IO,V)
#define READ(IO) _READ(IO)
#define TOGGLE(IO) _TOGGLE(IO)
#define OUT_WRITE(IO,V) do{ _SET_OUTPUT(IO); WRITE(IO,V); }while(0)
#define OUT_WRITE_OD(IO,V) do{ _SET_OUTPUT_OD(IO); WRITE(IO,V); }while(0)
#define SET_INPUT(IO) _SET_MODE(IO, INPUT) //!< Input Floating Mode
#define SET_INPUT_PULLUP(IO) _SET_MODE(IO, INPUT_PULLUP) //!< Input with Pull-up activation
#define SET_INPUT_PULLDOWN(IO) _SET_MODE(IO, INPUT_PULLDOWN) //!< Input with Pull-down activation
#define SET_OUTPUT(IO) OUT_WRITE(IO, LOW)
#define SET_PWM(IO) _SET_MODE(IO, PWM)
#define IS_INPUT(IO)
#define IS_OUTPUT(IO)
#define PWM_PIN(P) digitalPinHasPWM(P)
#define NO_COMPILE_TIME_PWM
// digitalRead/Write wrappers
#define extDigitalRead(IO) digitalRead(IO)
#define extDigitalWrite(IO,V) digitalWrite(IO,V)

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Marlin/src/HAL/STM32/inc/Conditionals_LCD.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once

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Marlin/src/HAL/STM32/inc/Conditionals_adv.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#if BOTH(SDSUPPORT, USBD_USE_CDC_MSC) && DISABLED(NO_SD_HOST_DRIVE)
#define HAS_SD_HOST_DRIVE 1
#endif
// Fix F_CPU not being a compile-time constant in STSTM32 framework
#ifdef BOARD_F_CPU
#undef F_CPU
#define F_CPU BOARD_F_CPU
#endif
// The Sensitive Pins array is not optimizable
#define RUNTIME_ONLY_ANALOG_TO_DIGITAL

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Marlin/src/HAL/STM32/inc/Conditionals_post.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
// If no real or emulated EEPROM selected, fall back to SD emulation
#if USE_FALLBACK_EEPROM
#define SDCARD_EEPROM_EMULATION
#elif EITHER(I2C_EEPROM, SPI_EEPROM)
#define USE_SHARED_EEPROM 1
#endif
// Some STM32F4 boards may lose steps when saving to EEPROM during print (PR #17946)
#if defined(STM32F4xx) && ENABLED(FLASH_EEPROM_EMULATION) && PRINTCOUNTER_SAVE_INTERVAL > 0
#define PRINTCOUNTER_SYNC 1
#endif

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Marlin/src/HAL/STM32/inc/SanityCheck.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* Test STM32-specific configuration values for errors at compile-time.
*/
//#if ENABLED(SPINDLE_LASER_USE_PWM) && !(SPINDLE_LASER_PWM_PIN == 4 || SPINDLE_LASER_PWM_PIN == 6 || SPINDLE_LASER_PWM_PIN == 11)
// #error "SPINDLE_LASER_PWM_PIN must use SERVO0, SERVO1 or SERVO3 connector"
//#endif
#if ENABLED(SDCARD_EEPROM_EMULATION) && DISABLED(SDSUPPORT)
#undef SDCARD_EEPROM_EMULATION // Avoid additional error noise
#if USE_FALLBACK_EEPROM
#warning "EEPROM type not specified. Fallback is SDCARD_EEPROM_EMULATION."
#endif
#error "SDCARD_EEPROM_EMULATION requires SDSUPPORT. Enable SDSUPPORT or choose another EEPROM emulation."
#endif
#if !defined(STM32F4xx) && ENABLED(FLASH_EEPROM_LEVELING)
#error "FLASH_EEPROM_LEVELING is currently only supported on STM32F4 hardware."
#endif
#if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
#error "SERIAL_STATS_MAX_RX_QUEUED is not supported on STM32."
#elif ENABLED(SERIAL_STATS_DROPPED_RX)
#error "SERIAL_STATS_DROPPED_RX is not supported on STM32."
#endif
#if ANY(TFT_COLOR_UI, TFT_LVGL_UI, TFT_CLASSIC_UI) && NOT_TARGET(STM32H7xx, STM32F4xx, STM32F1xx)
#error "TFT_COLOR_UI, TFT_LVGL_UI and TFT_CLASSIC_UI are currently only supported on STM32H7, STM32F4 and STM32F1 hardware."
#endif
/**
* Check for common serial pin conflicts
*/
#define _CHECK_SERIAL_PIN(N) (( \
BTN_EN1 == N || DOGLCD_CS == N || HEATER_BED_PIN == N || FAN_PIN == N || \
SDIO_D2_PIN == N || SDIO_D3_PIN == N || SDIO_CK_PIN == N || SDIO_CMD_PIN == N \
))
#define CHECK_SERIAL_PIN(T,N) defined(UART##N##_##T##_PIN) && _CHECK_SERIAL_PIN(UART##N##_##T##_PIN)
#if SERIAL_IN_USE(1)
#if CHECK_SERIAL_PIN(TX,1)
#error "Serial Port 1 TX IO pins conflict with another pin on the board."
#endif
#if CHECK_SERIAL_PIN(RX,1)
#error "Serial Port 1 RX IO pins conflict with another pin on the board."
#endif
#endif
#if SERIAL_IN_USE(2)
#if CHECK_SERIAL_PIN(TX,2)
#error "Serial Port 2 TX IO pins conflict with another pin on the board."
#endif
#if CHECK_SERIAL_PIN(RX,2)
#error "Serial Port 2 RX IO pins conflict with another pin on the board."
#endif
#endif
#if SERIAL_IN_USE(3)
#if CHECK_SERIAL_PIN(TX,3)
#error "Serial Port 3 TX IO pins conflict with another pin on the board."
#endif
#if CHECK_SERIAL_PIN(RX,3)
#error "Serial Port 3 RX IO pins conflict with another pin on the board."
#endif
#endif
#if SERIAL_IN_USE(4)
#if CHECK_SERIAL_PIN(TX,4)
#error "Serial Port 4 TX IO pins conflict with another pin on the board."
#endif
#if CHECK_SERIAL_PIN(RX,4)
#error "Serial Port 4 RX IO pins conflict with another pin on the board."
#endif
#endif
#if SERIAL_IN_USE(5)
#if CHECK_SERIAL_PIN(TX,5)
#error "Serial Port 5 TX IO pins conflict with another pin on the board."
#endif
#if CHECK_SERIAL_PIN(RX,5)
#error "Serial Port 5 RX IO pins conflict with another pin on the board."
#endif
#endif
#if SERIAL_IN_USE(6)
#if CHECK_SERIAL_PIN(TX,6)
#error "Serial Port 6 TX IO pins conflict with another pin on the board."
#endif
#if CHECK_SERIAL_PIN(RX,6)
#error "Serial Port 6 RX IO pins conflict with another pin on the board."
#endif
#endif
#undef CHECK_SERIAL_PIN
#undef _CHECK_SERIAL_PIN

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Marlin/src/HAL/STM32/msc_sd.cpp
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/**
* Marlin 3D Printer Firmware
*
* Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
* Copyright (c) 2019 BigTreeTech [https://github.com/bigtreetech]
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
#include "../../inc/MarlinConfigPre.h"
#if HAS_SD_HOST_DRIVE
#include "../shared/Marduino.h"
#include "msc_sd.h"
#include "usbd_core.h"
#include "../../sd/cardreader.h"
#include <USB.h>
#include <USBMscHandler.h>
#define BLOCK_SIZE 512
#define PRODUCT_ID 0x29
class Sd2CardUSBMscHandler : public USBMscHandler {
public:
DiskIODriver* diskIODriver() {
#if ENABLED(MULTI_VOLUME)
#if SHARED_VOLUME_IS(SD_ONBOARD)
return &card.media_driver_sdcard;
#elif SHARED_VOLUME_IS(USB_FLASH_DRIVE)
return &card.media_driver_usbFlash;
#endif
#else
return card.diskIODriver();
#endif
}
bool GetCapacity(uint32_t *pBlockNum, uint16_t *pBlockSize) {
*pBlockNum = diskIODriver()->cardSize();
*pBlockSize = BLOCK_SIZE;
return true;
}
bool Write(uint8_t *pBuf, uint32_t blkAddr, uint16_t blkLen) {
auto sd2card = diskIODriver();
// single block
if (blkLen == 1) {
hal.watchdog_refresh();
sd2card->writeBlock(blkAddr, pBuf);
return true;
}
// multi block optimization
sd2card->writeStart(blkAddr, blkLen);
while (blkLen--) {
hal.watchdog_refresh();
sd2card->writeData(pBuf);
pBuf += BLOCK_SIZE;
}
sd2card->writeStop();
return true;
}
bool Read(uint8_t *pBuf, uint32_t blkAddr, uint16_t blkLen) {
auto sd2card = diskIODriver();
// single block
if (blkLen == 1) {
hal.watchdog_refresh();
sd2card->readBlock(blkAddr, pBuf);
return true;
}
// multi block optimization
sd2card->readStart(blkAddr);
while (blkLen--) {
hal.watchdog_refresh();
sd2card->readData(pBuf);
pBuf += BLOCK_SIZE;
}
sd2card->readStop();
return true;
}
bool IsReady() {
return diskIODriver()->isReady();
}
};
Sd2CardUSBMscHandler usbMscHandler;
/* USB Mass storage Standard Inquiry Data */
uint8_t Marlin_STORAGE_Inquirydata[] = { /* 36 */
/* LUN 0 */
0x00,
0x80,
0x02,
0x02,
(STANDARD_INQUIRY_DATA_LEN - 5),
0x00,
0x00,
0x00,
'M', 'A', 'R', 'L', 'I', 'N', ' ', ' ', /* Manufacturer : 8 bytes */
'P', 'r', 'o', 'd', 'u', 'c', 't', ' ', /* Product : 16 Bytes */
' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ',
'0', '.', '0', '1', /* Version : 4 Bytes */
};
USBMscHandler *pSingleMscHandler = &usbMscHandler;
void MSC_SD_init() {
USBDevice.end();
delay(200);
USBDevice.registerMscHandlers(1, &pSingleMscHandler, Marlin_STORAGE_Inquirydata);
USBDevice.begin();
}
#endif // HAS_SD_HOST_DRIVE
#endif // HAL_STM32

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Marlin/src/HAL/STM32/msc_sd.h
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/**
* Marlin 3D Printer Firmware
*
* Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
* Copyright (c) 2019 BigTreeTech [https://github.com/bigtreetech]
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
void MSC_SD_init();

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Marlin/src/HAL/STM32/pinsDebug.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#include <Arduino.h>
#ifndef NUM_DIGITAL_PINS
// Only in ST's Arduino core (STM32duino, STM32Core)
#error "Expected NUM_DIGITAL_PINS not found"
#endif
/**
* Life gets complicated if you want an easy to use 'M43 I' output (in port/pin order)
* because the variants in this platform do not always define all the I/O port/pins
* that a CPU has.
*
* VARIABLES:
* Ard_num - Arduino pin number - defined by the platform. It is used by digitalRead and
* digitalWrite commands and by M42.
* - does not contain port/pin info
* - is not in port/pin order
* - typically a variant will only assign Ard_num to port/pins that are actually used
* Index - M43 counter - only used to get Ard_num
* x - a parameter/argument used to search the pin_array to try to find a signal name
* associated with a Ard_num
* Port_pin - port number and pin number for use with CPU registers and printing reports
*
* Since M43 uses digitalRead and digitalWrite commands, only the Port_pins with an Ard_num
* are accessed and/or displayed.
*
* Three arrays are used.
*
* digitalPin[] is provided by the platform. It consists of the Port_pin numbers in
* Arduino pin number order.
*
* pin_array is a structure generated by the pins/pinsDebug.h header file. It is generated by
* the preprocessor. Only the signals associated with enabled options are in this table.
* It contains:
* - name of the signal
* - the Ard_num assigned by the pins_YOUR_BOARD.h file using the platform defines.
* EXAMPLE: "#define KILL_PIN PB1" results in Ard_num of 57. 57 is then used as the
* argument to digitalPinToPinName(IO) to get the Port_pin number
* - if it is a digital or analog signal. PWMs are considered digital here.
*
* pin_xref is a structure generated by this header file. It is generated by the
* preprocessor. It is in port/pin order. It contains just the port/pin numbers defined by the
* platform for this variant.
* - Ard_num
* - printable version of Port_pin
*
* Routines with an "x" as a parameter/argument are used to search the pin_array to try to
* find a signal name associated with a port/pin.
*
* NOTE - the Arduino pin number is what is used by the M42 command, NOT the port/pin for that
* signal. The Arduino pin number is listed by the M43 I command.
*/
////////////////////////////////////////////////////////
//
// make a list of the Arduino pin numbers in the Port/Pin order
//
#define _PIN_ADD(NAME_ALPHA, ARDUINO_NUM) { NAME_ALPHA, ARDUINO_NUM },
#define PIN_ADD(NAME) _PIN_ADD(#NAME, NAME)
typedef struct {
char Port_pin_alpha[5];
pin_t Ard_num;
} XrefInfo;
const XrefInfo pin_xref[] PROGMEM = {
#include "pins_Xref.h"
};
////////////////////////////////////////////////////////////
#define MODE_PIN_INPUT 0 // Input mode (reset state)
#define MODE_PIN_OUTPUT 1 // General purpose output mode
#define MODE_PIN_ALT 2 // Alternate function mode
#define MODE_PIN_ANALOG 3 // Analog mode
#define PIN_NUM(P) (P & 0x000F)
#define PIN_NUM_ALPHA_LEFT(P) (((P & 0x000F) < 10) ? ('0' + (P & 0x000F)) : '1')
#define PIN_NUM_ALPHA_RIGHT(P) (((P & 0x000F) > 9) ? ('0' + (P & 0x000F) - 10) : 0 )
#define PORT_NUM(P) ((P >> 4) & 0x0007)
#define PORT_ALPHA(P) ('A' + (P >> 4))
/**
* Translation of routines & variables used by pinsDebug.h
*/
#if NUM_ANALOG_FIRST >= NUM_DIGITAL_PINS
#define HAS_HIGH_ANALOG_PINS 1
#endif
#define NUM_ANALOG_LAST ((NUM_ANALOG_FIRST) + (NUM_ANALOG_INPUTS) - 1)
#define NUMBER_PINS_TOTAL ((NUM_DIGITAL_PINS) + TERN0(HAS_HIGH_ANALOG_PINS, NUM_ANALOG_INPUTS))
#define VALID_PIN(P) (WITHIN(P, 0, (NUM_DIGITAL_PINS) - 1) || TERN0(HAS_HIGH_ANALOG_PINS, WITHIN(P, NUM_ANALOG_FIRST, NUM_ANALOG_LAST)))
#define digitalRead_mod(Ard_num) extDigitalRead(Ard_num) // must use Arduino pin numbers when doing reads
#define PRINT_PIN(Q)
#define PRINT_PIN_ANALOG(p) do{ sprintf_P(buffer, PSTR(" (A%2d) "), DIGITAL_PIN_TO_ANALOG_PIN(pin)); SERIAL_ECHO(buffer); }while(0)
#define PRINT_PORT(ANUM) port_print(ANUM)
#define DIGITAL_PIN_TO_ANALOG_PIN(ANUM) -1 // will report analog pin number in the print port routine
// x is a variable used to search pin_array
#define GET_ARRAY_IS_DIGITAL(x) ((bool) pin_array[x].is_digital)
#define GET_ARRAY_PIN(x) ((pin_t) pin_array[x].pin)
#define PRINT_ARRAY_NAME(x) do{ sprintf_P(buffer, PSTR("%-" STRINGIFY(MAX_NAME_LENGTH) "s"), pin_array[x].name); SERIAL_ECHO(buffer); }while(0)
#define MULTI_NAME_PAD 33 // space needed to be pretty if not first name assigned to a pin
//
// Pin Mapping for M43
//
#define GET_PIN_MAP_PIN_M43(Index) pin_xref[Index].Ard_num
#ifndef M43_NEVER_TOUCH
#define _M43_NEVER_TOUCH(Index) (Index >= 9 && Index <= 12) // SERIAL/USB pins: PA9(TX) PA10(RX) PA11(USB_DM) PA12(USB_DP)
#ifdef KILL_PIN
#define M43_NEVER_TOUCH(Index) m43_never_touch(Index)
bool m43_never_touch(const pin_t Index) {
static pin_t M43_kill_index = -1;
if (M43_kill_index < 0)
for (M43_kill_index = 0; M43_kill_index < NUMBER_PINS_TOTAL; M43_kill_index++)
if (KILL_PIN == GET_PIN_MAP_PIN_M43(M43_kill_index)) break;
return _M43_NEVER_TOUCH(Index) || Index == M43_kill_index; // KILL_PIN and SERIAL/USB
}
#else
#define M43_NEVER_TOUCH(Index) _M43_NEVER_TOUCH(Index)
#endif
#endif
uint8_t get_pin_mode(const pin_t Ard_num) {
const PinName dp = digitalPinToPinName(Ard_num);
uint32_t ll_pin = STM_LL_GPIO_PIN(dp);
GPIO_TypeDef *port = get_GPIO_Port(STM_PORT(dp));
uint32_t mode = LL_GPIO_GetPinMode(port, ll_pin);
switch (mode) {
case LL_GPIO_MODE_ANALOG: return MODE_PIN_ANALOG;
case LL_GPIO_MODE_INPUT: return MODE_PIN_INPUT;
case LL_GPIO_MODE_OUTPUT: return MODE_PIN_OUTPUT;
case LL_GPIO_MODE_ALTERNATE: return MODE_PIN_ALT;
TERN_(STM32F1xx, case LL_GPIO_MODE_FLOATING:)
default: return 0;
}
}
bool GET_PINMODE(const pin_t Ard_num) {
const uint8_t pin_mode = get_pin_mode(Ard_num);
return pin_mode == MODE_PIN_OUTPUT || pin_mode == MODE_PIN_ALT; // assume all alt definitions are PWM
}
int8_t digital_pin_to_analog_pin(const pin_t Ard_num) {
if (WITHIN(Ard_num, NUM_ANALOG_FIRST, NUM_ANALOG_LAST))
return Ard_num - NUM_ANALOG_FIRST;
const uint32_t ind = digitalPinToAnalogInput(Ard_num);
return (ind < NUM_ANALOG_INPUTS) ? ind : -1;
}
bool IS_ANALOG(const pin_t Ard_num) {
return get_pin_mode(Ard_num) == MODE_PIN_ANALOG;
}
bool is_digital(const pin_t Ard_num) {
const uint8_t pin_mode = get_pin_mode(pin_array[Ard_num].pin);
return pin_mode == MODE_PIN_INPUT || pin_mode == MODE_PIN_OUTPUT;
}
void port_print(const pin_t Ard_num) {
char buffer[16];
pin_t Index;
for (Index = 0; Index < NUMBER_PINS_TOTAL; Index++)
if (Ard_num == GET_PIN_MAP_PIN_M43(Index)) break;
const char * ppa = pin_xref[Index].Port_pin_alpha;
sprintf_P(buffer, PSTR("%s"), ppa);
SERIAL_ECHO(buffer);
if (ppa[3] == '\0') SERIAL_CHAR(' ');
// print analog pin number
const int8_t Port_pin = digital_pin_to_analog_pin(Ard_num);
if (Port_pin >= 0) {
sprintf_P(buffer, PSTR(" (A%d) "), Port_pin);
SERIAL_ECHO(buffer);
if (Port_pin < 10) SERIAL_CHAR(' ');
}
else
SERIAL_ECHO_SP(7);
// Print number to be used with M42
int calc_p = Ard_num;
if (Ard_num > NUM_DIGITAL_PINS) {
calc_p -= NUM_ANALOG_FIRST;
if (calc_p > 7) calc_p += 8;
}
SERIAL_ECHOPGM(" M42 P", calc_p);
SERIAL_CHAR(' ');
if (calc_p < 100) {
SERIAL_CHAR(' ');
if (calc_p < 10)
SERIAL_CHAR(' ');
}
}
bool pwm_status(const pin_t Ard_num) {
return get_pin_mode(Ard_num) == MODE_PIN_ALT;
}
void pwm_details(const pin_t Ard_num) {
#ifndef STM32F1xx
if (pwm_status(Ard_num)) {
uint32_t alt_all = 0;
const PinName dp = digitalPinToPinName(Ard_num);
pin_t pin_number = uint8_t(PIN_NUM(dp));
const bool over_7 = pin_number >= 8;
const uint8_t ind = over_7 ? 1 : 0;
switch (PORT_ALPHA(dp)) { // get alt function
case 'A' : alt_all = GPIOA->AFR[ind]; break;
case 'B' : alt_all = GPIOB->AFR[ind]; break;
case 'C' : alt_all = GPIOC->AFR[ind]; break;
case 'D' : alt_all = GPIOD->AFR[ind]; break;
#ifdef PE_0
case 'E' : alt_all = GPIOE->AFR[ind]; break;
#elif defined(PF_0)
case 'F' : alt_all = GPIOF->AFR[ind]; break;
#elif defined(PG_0)
case 'G' : alt_all = GPIOG->AFR[ind]; break;
#elif defined(PH_0)
case 'H' : alt_all = GPIOH->AFR[ind]; break;
#elif defined(PI_0)
case 'I' : alt_all = GPIOI->AFR[ind]; break;
#elif defined(PJ_0)
case 'J' : alt_all = GPIOJ->AFR[ind]; break;
#elif defined(PK_0)
case 'K' : alt_all = GPIOK->AFR[ind]; break;
#elif defined(PL_0)
case 'L' : alt_all = GPIOL->AFR[ind]; break;
#endif
}
if (over_7) pin_number -= 8;
uint8_t alt_func = (alt_all >> (4 * pin_number)) & 0x0F;
SERIAL_ECHOPGM("Alt Function: ", alt_func);
if (alt_func < 10) SERIAL_CHAR(' ');
SERIAL_ECHOPGM(" - ");
switch (alt_func) {
case 0 : SERIAL_ECHOPGM("system (misc. I/O)"); break;
case 1 : SERIAL_ECHOPGM("TIM1/TIM2 (probably PWM)"); break;
case 2 : SERIAL_ECHOPGM("TIM3..5 (probably PWM)"); break;
case 3 : SERIAL_ECHOPGM("TIM8..11 (probably PWM)"); break;
case 4 : SERIAL_ECHOPGM("I2C1..3"); break;
case 5 : SERIAL_ECHOPGM("SPI1/SPI2"); break;
case 6 : SERIAL_ECHOPGM("SPI3"); break;
case 7 : SERIAL_ECHOPGM("USART1..3"); break;
case 8 : SERIAL_ECHOPGM("USART4..6"); break;
case 9 : SERIAL_ECHOPGM("CAN1/CAN2, TIM12..14 (probably PWM)"); break;
case 10 : SERIAL_ECHOPGM("OTG"); break;
case 11 : SERIAL_ECHOPGM("ETH"); break;
case 12 : SERIAL_ECHOPGM("FSMC, SDIO, OTG"); break;
case 13 : SERIAL_ECHOPGM("DCMI"); break;
case 14 : SERIAL_ECHOPGM("unused (shouldn't see this)"); break;
case 15 : SERIAL_ECHOPGM("EVENTOUT"); break;
}
}
#else
// TODO: F1 doesn't support changing pins function, so we need to check the function of the PIN and if it's enabled
#endif
} // pwm_details

612
Marlin/src/HAL/STM32/pins_Xref.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
//
// make a list of the Arduino pin numbers in the Port/Pin order
//
#ifdef PA0
PIN_ADD(PA0)
#endif
#ifdef PA1
PIN_ADD(PA1)
#endif
#ifdef PA2
PIN_ADD(PA2)
#endif
#ifdef PA3
PIN_ADD(PA3)
#endif
#ifdef PA4
PIN_ADD(PA4)
#endif
#ifdef PA5
PIN_ADD(PA5)
#endif
#ifdef PA6
PIN_ADD(PA6)
#endif
#ifdef PA7
PIN_ADD(PA7)
#endif
#ifdef PA8
PIN_ADD(PA8)
#endif
#ifdef PA9
PIN_ADD(PA9)
#endif
#ifdef PA10
PIN_ADD(PA10)
#endif
#ifdef PA11
PIN_ADD(PA11)
#endif
#ifdef PA12
PIN_ADD(PA12)
#endif
#ifdef PA13
PIN_ADD(PA13)
#endif
#ifdef PA14
PIN_ADD(PA14)
#endif
#ifdef PA15
PIN_ADD(PA15)
#endif
#ifdef PB0
PIN_ADD(PB0)
#endif
#ifdef PB1
PIN_ADD(PB1)
#endif
#ifdef PB2
PIN_ADD(PB2)
#endif
#ifdef PB3
PIN_ADD(PB3)
#endif
#ifdef PB4
PIN_ADD(PB4)
#endif
#ifdef PB5
PIN_ADD(PB5)
#endif
#ifdef PB6
PIN_ADD(PB6)
#endif
#ifdef PB7
PIN_ADD(PB7)
#endif
#ifdef PB8
PIN_ADD(PB8)
#endif
#ifdef PB9
PIN_ADD(PB9)
#endif
#ifdef PB10
PIN_ADD(PB10)
#endif
#ifdef PB11
PIN_ADD(PB11)
#endif
#ifdef PB12
PIN_ADD(PB12)
#endif
#ifdef PB13
PIN_ADD(PB13)
#endif
#ifdef PB14
PIN_ADD(PB14)
#endif
#ifdef PB15
PIN_ADD(PB15)
#endif
#ifdef PC0
PIN_ADD(PC0)
#endif
#ifdef PC1
PIN_ADD(PC1)
#endif
#ifdef PC2
PIN_ADD(PC2)
#endif
#ifdef PC3
PIN_ADD(PC3)
#endif
#ifdef PC4
PIN_ADD(PC4)
#endif
#ifdef PC5
PIN_ADD(PC5)
#endif
#ifdef PC6
PIN_ADD(PC6)
#endif
#ifdef PC7
PIN_ADD(PC7)
#endif
#ifdef PC8
PIN_ADD(PC8)
#endif
#ifdef PC9
PIN_ADD(PC9)
#endif
#ifdef PC10
PIN_ADD(PC10)
#endif
#ifdef PC11
PIN_ADD(PC11)
#endif
#ifdef PC12
PIN_ADD(PC12)
#endif
#ifdef PC13
PIN_ADD(PC13)
#endif
#ifdef PC14
PIN_ADD(PC14)
#endif
#ifdef PC15
PIN_ADD(PC15)
#endif
#ifdef PD0
PIN_ADD(PD0)
#endif
#ifdef PD1
PIN_ADD(PD1)
#endif
#ifdef PD2
PIN_ADD(PD2)
#endif
#ifdef PD3
PIN_ADD(PD3)
#endif
#ifdef PD4
PIN_ADD(PD4)
#endif
#ifdef PD5
PIN_ADD(PD5)
#endif
#ifdef PD6
PIN_ADD(PD6)
#endif
#ifdef PD7
PIN_ADD(PD7)
#endif
#ifdef PD8
PIN_ADD(PD8)
#endif
#ifdef PD9
PIN_ADD(PD9)
#endif
#ifdef PD10
PIN_ADD(PD10)
#endif
#ifdef PD11
PIN_ADD(PD11)
#endif
#ifdef PD12
PIN_ADD(PD12)
#endif
#ifdef PD13
PIN_ADD(PD13)
#endif
#ifdef PD14
PIN_ADD(PD14)
#endif
#ifdef PD15
PIN_ADD(PD15)
#endif
#ifdef PE0
PIN_ADD(PE0)
#endif
#ifdef PE1
PIN_ADD(PE1)
#endif
#ifdef PE2
PIN_ADD(PE2)
#endif
#ifdef PE3
PIN_ADD(PE3)
#endif
#ifdef PE4
PIN_ADD(PE4)
#endif
#ifdef PE5
PIN_ADD(PE5)
#endif
#ifdef PE6
PIN_ADD(PE6)
#endif
#ifdef PE7
PIN_ADD(PE7)
#endif
#ifdef PE8
PIN_ADD(PE8)
#endif
#ifdef PE9
PIN_ADD(PE9)
#endif
#ifdef PE10
PIN_ADD(PE10)
#endif
#ifdef PE11
PIN_ADD(PE11)
#endif
#ifdef PE12
PIN_ADD(PE12)
#endif
#ifdef PE13
PIN_ADD(PE13)
#endif
#ifdef PE14
PIN_ADD(PE14)
#endif
#ifdef PE15
PIN_ADD(PE15)
#endif
#ifdef PF0
PIN_ADD(PF0)
#endif
#ifdef PF1
PIN_ADD(PF1)
#endif
#ifdef PF2
PIN_ADD(PF2)
#endif
#ifdef PF3
PIN_ADD(PF3)
#endif
#ifdef PF4
PIN_ADD(PF4)
#endif
#ifdef PF5
PIN_ADD(PF5)
#endif
#ifdef PF6
PIN_ADD(PF6)
#endif
#ifdef PF7
PIN_ADD(PF7)
#endif
#ifdef PF8
PIN_ADD(PF8)
#endif
#ifdef PF9
PIN_ADD(PF9)
#endif
#ifdef PF10
PIN_ADD(PF10)
#endif
#ifdef PF11
PIN_ADD(PF11)
#endif
#ifdef PF12
PIN_ADD(PF12)
#endif
#ifdef PF13
PIN_ADD(PF13)
#endif
#ifdef PF14
PIN_ADD(PF14)
#endif
#ifdef PF15
PIN_ADD(PF15)
#endif
#ifdef PG0
PIN_ADD(PG0)
#endif
#ifdef PG1
PIN_ADD(PG1)
#endif
#ifdef PG2
PIN_ADD(PG2)
#endif
#ifdef PG3
PIN_ADD(PG3)
#endif
#ifdef PG4
PIN_ADD(PG4)
#endif
#ifdef PG5
PIN_ADD(PG5)
#endif
#ifdef PG6
PIN_ADD(PG6)
#endif
#ifdef PG7
PIN_ADD(PG7)
#endif
#ifdef PG8
PIN_ADD(PG8)
#endif
#ifdef PG9
PIN_ADD(PG9)
#endif
#ifdef PG10
PIN_ADD(PG10)
#endif
#ifdef PG11
PIN_ADD(PG11)
#endif
#ifdef PG12
PIN_ADD(PG12)
#endif
#ifdef PG13
PIN_ADD(PG13)
#endif
#ifdef PG14
PIN_ADD(PG14)
#endif
#ifdef PG15
PIN_ADD(PG15)
#endif
#ifdef PH0
PIN_ADD(PH0)
#endif
#ifdef PH1
PIN_ADD(PH1)
#endif
#ifdef PH2
PIN_ADD(PH2)
#endif
#ifdef PH3
PIN_ADD(PH3)
#endif
#ifdef PH4
PIN_ADD(PH4)
#endif
#ifdef PH5
PIN_ADD(PH5)
#endif
#ifdef PH6
PIN_ADD(PH6)
#endif
#ifdef PH7
PIN_ADD(PH7)
#endif
#ifdef PH8
PIN_ADD(PH8)
#endif
#ifdef PH9
PIN_ADD(PH9)
#endif
#ifdef PH10
PIN_ADD(PH10)
#endif
#ifdef PH11
PIN_ADD(PH11)
#endif
#ifdef PH12
PIN_ADD(PH12)
#endif
#ifdef PH13
PIN_ADD(PH13)
#endif
#ifdef PH14
PIN_ADD(PH14)
#endif
#ifdef PH15
PIN_ADD(PH15)
#endif
#ifdef PI0
PIN_ADD(PI0)
#endif
#ifdef PI1
PIN_ADD(PI1)
#endif
#ifdef PI2
PIN_ADD(PI2)
#endif
#ifdef PI3
PIN_ADD(PI3)
#endif
#ifdef PI4
PIN_ADD(PI4)
#endif
#ifdef PI5
PIN_ADD(PI5)
#endif
#ifdef PI6
PIN_ADD(PI6)
#endif
#ifdef PI7
PIN_ADD(PI7)
#endif
#ifdef PI8
PIN_ADD(PI8)
#endif
#ifdef PI9
PIN_ADD(PI9)
#endif
#ifdef PI10
PIN_ADD(PI10)
#endif
#ifdef PI11
PIN_ADD(PI11)
#endif
#ifdef PI12
PIN_ADD(PI12)
#endif
#ifdef PI13
PIN_ADD(PI13)
#endif
#ifdef PI14
PIN_ADD(PI14)
#endif
#ifdef PI15
PIN_ADD(PI15)
#endif
#ifdef PJ0
PIN_ADD(PJ0)
#endif
#ifdef PJ1
PIN_ADD(PJ1)
#endif
#ifdef PJ2
PIN_ADD(PJ2)
#endif
#ifdef PJ3
PIN_ADD(PJ3)
#endif
#ifdef PJ4
PIN_ADD(PJ4)
#endif
#ifdef PJ5
PIN_ADD(PJ5)
#endif
#ifdef PJ6
PIN_ADD(PJ6)
#endif
#ifdef PJ7
PIN_ADD(PJ7)
#endif
#ifdef PJ8
PIN_ADD(PJ8)
#endif
#ifdef PJ9
PIN_ADD(PJ9)
#endif
#ifdef PJ10
PIN_ADD(PJ10)
#endif
#ifdef PJ11
PIN_ADD(PJ11)
#endif
#ifdef PJ12
PIN_ADD(PJ12)
#endif
#ifdef PJ13
PIN_ADD(PJ13)
#endif
#ifdef PJ14
PIN_ADD(PJ14)
#endif
#ifdef PJ15
PIN_ADD(PJ15)
#endif
#ifdef PK0
PIN_ADD(PK0)
#endif
#ifdef PK1
PIN_ADD(PK1)
#endif
#ifdef PK2
PIN_ADD(PK2)
#endif
#ifdef PK3
PIN_ADD(PK3)
#endif
#ifdef PK4
PIN_ADD(PK4)
#endif
#ifdef PK5
PIN_ADD(PK5)
#endif
#ifdef PK6
PIN_ADD(PK6)
#endif
#ifdef PK7
PIN_ADD(PK7)
#endif
#ifdef PK8
PIN_ADD(PK8)
#endif
#ifdef PK9
PIN_ADD(PK9)
#endif
#ifdef PK10
PIN_ADD(PK10)
#endif
#ifdef PK11
PIN_ADD(PK11)
#endif
#ifdef PK12
PIN_ADD(PK12)
#endif
#ifdef PK13
PIN_ADD(PK13)
#endif
#ifdef PK14
PIN_ADD(PK14)
#endif
#ifdef PK15
PIN_ADD(PK15)
#endif
#ifdef PL0
PIN_ADD(PL0)
#endif
#ifdef PL1
PIN_ADD(PL1)
#endif
#ifdef PL2
PIN_ADD(PL2)
#endif
#ifdef PL3
PIN_ADD(PL3)
#endif
#ifdef PL4
PIN_ADD(PL4)
#endif
#ifdef PL5
PIN_ADD(PL5)
#endif
#ifdef PL6
PIN_ADD(PL6)
#endif
#ifdef PL7
PIN_ADD(PL7)
#endif
#ifdef PL8
PIN_ADD(PL8)
#endif
#ifdef PL9
PIN_ADD(PL9)
#endif
#ifdef PL10
PIN_ADD(PL10)
#endif
#ifdef PL11
PIN_ADD(PL11)
#endif
#ifdef PL12
PIN_ADD(PL12)
#endif
#ifdef PL13
PIN_ADD(PL13)
#endif
#ifdef PL14
PIN_ADD(PL14)
#endif
#ifdef PL15
PIN_ADD(PL15)
#endif

451
Marlin/src/HAL/STM32/sdio.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../platforms.h"
#ifdef HAL_STM32
#include "../../inc/MarlinConfig.h"
#if ENABLED(SDIO_SUPPORT)
#include "sdio.h"
#include <stdint.h>
#include <stdbool.h>
#if defined(STM32F103xE) || defined(STM32F103xG)
#include <stm32f1xx_hal_rcc_ex.h>
#include <stm32f1xx_hal_sd.h>
#elif defined(STM32F4xx)
#include <stm32f4xx_hal_rcc.h>
#include <stm32f4xx_hal_dma.h>
#include <stm32f4xx_hal_gpio.h>
#include <stm32f4xx_hal_sd.h>
#elif defined(STM32F7xx)
#include <stm32f7xx_hal_rcc.h>
#include <stm32f7xx_hal_dma.h>
#include <stm32f7xx_hal_gpio.h>
#include <stm32f7xx_hal_sd.h>
#elif defined(STM32H7xx)
#define SDIO_FOR_STM32H7
#include <stm32h7xx_hal_rcc.h>
#include <stm32h7xx_hal_dma.h>
#include <stm32h7xx_hal_gpio.h>
#include <stm32h7xx_hal_sd.h>
#else
#error "SDIO is only supported with STM32F103xE, STM32F103xG, STM32F4xx, STM32F7xx, and STM32H7xx."
#endif
// SDIO Max Clock (naming from STM Manual, don't change)
#define SDIOCLK 48000000
// Target Clock, configurable. Default is 18MHz, from STM32F1
#ifndef SDIO_CLOCK
#define SDIO_CLOCK 18000000 // 18 MHz
#endif
SD_HandleTypeDef hsd; // SDIO structure
static uint32_t clock_to_divider(uint32_t clk) {
#ifdef SDIO_FOR_STM32H7
// SDMMC_CK frequency = sdmmc_ker_ck / [2 * CLKDIV].
uint32_t sdmmc_clk = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SDMMC);
return sdmmc_clk / (2U * SDIO_CLOCK) + (sdmmc_clk % (2U * SDIO_CLOCK) != 0);
#else
// limit the SDIO master clock to 8/3 of PCLK2. See STM32 Manuals
// Also limited to no more than 48Mhz (SDIOCLK).
const uint32_t pclk2 = HAL_RCC_GetPCLK2Freq();
clk = min(clk, (uint32_t)(pclk2 * 8 / 3));
clk = min(clk, (uint32_t)SDIOCLK);
// Round up divider, so we don't run the card over the speed supported,
// and subtract by 2, because STM32 will add 2, as written in the manual:
// SDIO_CK frequency = SDIOCLK / [CLKDIV + 2]
return pclk2 / clk + (pclk2 % clk != 0) - 2;
#endif
}
// Start the SDIO clock
void HAL_SD_MspInit(SD_HandleTypeDef *hsd) {
UNUSED(hsd);
#ifdef SDIO_FOR_STM32H7
pinmap_pinout(PC_12, PinMap_SD);
pinmap_pinout(PD_2, PinMap_SD);
pinmap_pinout(PC_8, PinMap_SD);
#if PINS_EXIST(SDIO_D1, SDIO_D2, SDIO_D3) // Define D1-D3 only for 4-bit wide SDIO bus
pinmap_pinout(PC_9, PinMap_SD);
pinmap_pinout(PC_10, PinMap_SD);
pinmap_pinout(PC_11, PinMap_SD);
#endif
__HAL_RCC_SDMMC1_CLK_ENABLE();
HAL_NVIC_EnableIRQ(SDMMC1_IRQn);
#else
__HAL_RCC_SDIO_CLK_ENABLE();
#endif
}
#ifdef SDIO_FOR_STM32H7
#define SD_TIMEOUT 1000 // ms
extern "C" void SDMMC1_IRQHandler(void) { HAL_SD_IRQHandler(&hsd); }
uint8_t waitingRxCplt = 0, waitingTxCplt = 0;
void HAL_SD_TxCpltCallback(SD_HandleTypeDef *hsdio) { waitingTxCplt = 0; }
void HAL_SD_RxCpltCallback(SD_HandleTypeDef *hsdio) { waitingRxCplt = 0; }
void HAL_SD_MspDeInit(SD_HandleTypeDef *hsd) {
__HAL_RCC_SDMMC1_FORCE_RESET(); delay(10);
__HAL_RCC_SDMMC1_RELEASE_RESET(); delay(10);
}
bool SDIO_Init() {
HAL_StatusTypeDef sd_state = HAL_OK;
if (hsd.Instance == SDMMC1) HAL_SD_DeInit(&hsd);
// HAL SD initialization
hsd.Instance = SDMMC1;
hsd.Init.ClockEdge = SDMMC_CLOCK_EDGE_RISING;
hsd.Init.ClockPowerSave = SDMMC_CLOCK_POWER_SAVE_DISABLE;
hsd.Init.BusWide = SDMMC_BUS_WIDE_1B;
hsd.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_DISABLE;
hsd.Init.ClockDiv = clock_to_divider(SDIO_CLOCK);
sd_state = HAL_SD_Init(&hsd);
#if PINS_EXIST(SDIO_D1, SDIO_D2, SDIO_D3)
if (sd_state == HAL_OK)
sd_state = HAL_SD_ConfigWideBusOperation(&hsd, SDMMC_BUS_WIDE_4B);
#endif
return (sd_state == HAL_OK);
}
#else // !SDIO_FOR_STM32H7
#define SD_TIMEOUT 500 // ms
// SDIO retries, configurable. Default is 3, from STM32F1
#ifndef SDIO_READ_RETRIES
#define SDIO_READ_RETRIES 3
#endif
// F4 supports one DMA for RX and another for TX, but Marlin will never
// do read and write at same time, so we use the same DMA for both.
DMA_HandleTypeDef hdma_sdio;
#ifdef STM32F1xx
#define DMA_IRQ_HANDLER DMA2_Channel4_5_IRQHandler
#elif defined(STM32F4xx)
#define DMA_IRQ_HANDLER DMA2_Stream3_IRQHandler
#else
#error "Unknown STM32 architecture."
#endif
extern "C" void SDIO_IRQHandler(void) { HAL_SD_IRQHandler(&hsd); }
extern "C" void DMA_IRQ_HANDLER(void) { HAL_DMA_IRQHandler(&hdma_sdio); }
/*
SDIO_INIT_CLK_DIV is 118
SDIO clock frequency is 48MHz / (TRANSFER_CLOCK_DIV + 2)
SDIO init clock frequency should not exceed 400kHz = 48MHz / (118 + 2)
Default TRANSFER_CLOCK_DIV is 2 (118 / 40)
Default SDIO clock frequency is 48MHz / (2 + 2) = 12 MHz
This might be too fast for stable SDIO operations
MKS Robin SDIO seems stable with BusWide 1bit and ClockDiv 8 (i.e., 4.8MHz SDIO clock frequency)
More testing is required as there are clearly some 4bit init problems.
*/
void go_to_transfer_speed() {
/* Default SDIO peripheral configuration for SD card initialization */
hsd.Init.ClockEdge = hsd.Init.ClockEdge;
hsd.Init.ClockBypass = hsd.Init.ClockBypass;
hsd.Init.ClockPowerSave = hsd.Init.ClockPowerSave;
hsd.Init.BusWide = hsd.Init.BusWide;
hsd.Init.HardwareFlowControl = hsd.Init.HardwareFlowControl;
hsd.Init.ClockDiv = clock_to_divider(SDIO_CLOCK);
/* Initialize SDIO peripheral interface with default configuration */
SDIO_Init(hsd.Instance, hsd.Init);
}
void SD_LowLevel_Init() {
uint32_t tempreg;
// Enable GPIO clocks
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = 1; // GPIO_NOPULL
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
#if DISABLED(STM32F1xx)
GPIO_InitStruct.Alternate = GPIO_AF12_SDIO;
#endif
GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_12; // D0 & SCK
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
#if PINS_EXIST(SDIO_D1, SDIO_D2, SDIO_D3) // define D1-D3 only if have a four bit wide SDIO bus
GPIO_InitStruct.Pin = GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11; // D1-D3
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
#endif
// Configure PD.02 CMD line
GPIO_InitStruct.Pin = GPIO_PIN_2;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
// Setup DMA
#ifdef STM32F1xx
hdma_sdio.Init.Mode = DMA_NORMAL;
hdma_sdio.Instance = DMA2_Channel4;
HAL_NVIC_EnableIRQ(DMA2_Channel4_5_IRQn);
#elif defined(STM32F4xx)
hdma_sdio.Init.Mode = DMA_PFCTRL;
hdma_sdio.Instance = DMA2_Stream3;
hdma_sdio.Init.Channel = DMA_CHANNEL_4;
hdma_sdio.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
hdma_sdio.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_sdio.Init.MemBurst = DMA_MBURST_INC4;
hdma_sdio.Init.PeriphBurst = DMA_PBURST_INC4;
HAL_NVIC_EnableIRQ(DMA2_Stream3_IRQn);
#endif
HAL_NVIC_EnableIRQ(SDIO_IRQn);
hdma_sdio.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_sdio.Init.MemInc = DMA_MINC_ENABLE;
hdma_sdio.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
hdma_sdio.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
hdma_sdio.Init.Priority = DMA_PRIORITY_LOW;
__HAL_LINKDMA(&hsd, hdmarx, hdma_sdio);
__HAL_LINKDMA(&hsd, hdmatx, hdma_sdio);
#ifdef STM32F1xx
__HAL_RCC_SDIO_CLK_ENABLE();
__HAL_RCC_DMA2_CLK_ENABLE();
#else
__HAL_RCC_SDIO_FORCE_RESET(); delay(2);
__HAL_RCC_SDIO_RELEASE_RESET(); delay(2);
__HAL_RCC_SDIO_CLK_ENABLE();
__HAL_RCC_DMA2_FORCE_RESET(); delay(2);
__HAL_RCC_DMA2_RELEASE_RESET(); delay(2);
__HAL_RCC_DMA2_CLK_ENABLE();
#endif
// Initialize the SDIO (with initial <400Khz Clock)
tempreg = 0 // Reset value
| SDIO_CLKCR_CLKEN // Clock enabled
| SDIO_INIT_CLK_DIV; // Clock Divider. Clock = 48000 / (118 + 2) = 400Khz
// Keep the rest at 0 => HW_Flow Disabled, Rising Clock Edge, Disable CLK ByPass, Bus Width = 0, Power save Disable
SDIO->CLKCR = tempreg;
// Power up the SDIO
SDIO_PowerState_ON(SDIO);
hsd.Instance = SDIO;
}
bool SDIO_Init() {
uint8_t retryCnt = SDIO_READ_RETRIES;
bool status;
hsd.Instance = SDIO;
hsd.State = HAL_SD_STATE_RESET;
SD_LowLevel_Init();
uint8_t retry_Cnt = retryCnt;
for (;;) {
hal.watchdog_refresh();
status = (bool) HAL_SD_Init(&hsd);
if (!status) break;
if (!--retry_Cnt) return false; // return failing status if retries are exhausted
}
go_to_transfer_speed();
#if PINS_EXIST(SDIO_D1, SDIO_D2, SDIO_D3) // go to 4 bit wide mode if pins are defined
retry_Cnt = retryCnt;
for (;;) {
hal.watchdog_refresh();
if (!HAL_SD_ConfigWideBusOperation(&hsd, SDIO_BUS_WIDE_4B)) break; // some cards are only 1 bit wide so a pass here is not required
if (!--retry_Cnt) break;
}
if (!retry_Cnt) { // wide bus failed, go back to one bit wide mode
hsd.State = (HAL_SD_StateTypeDef) 0; // HAL_SD_STATE_RESET
SD_LowLevel_Init();
retry_Cnt = retryCnt;
for (;;) {
hal.watchdog_refresh();
status = (bool) HAL_SD_Init(&hsd);
if (!status) break;
if (!--retry_Cnt) return false; // return failing status if retries are exhausted
}
go_to_transfer_speed();
}
#endif
return true;
}
/**
* @brief Read or Write a block
* @details Read or Write a block with SDIO
*
* @param block The block index
* @param src The data buffer source for a write
* @param dst The data buffer destination for a read
*
* @return true on success
*/
static bool SDIO_ReadWriteBlock_DMA(uint32_t block, const uint8_t *src, uint8_t *dst) {
if (HAL_SD_GetCardState(&hsd) != HAL_SD_CARD_TRANSFER) return false;
hal.watchdog_refresh();
HAL_StatusTypeDef ret;
if (src) {
hdma_sdio.Init.Direction = DMA_MEMORY_TO_PERIPH;
HAL_DMA_Init(&hdma_sdio);
ret = HAL_SD_WriteBlocks_DMA(&hsd, (uint8_t*)src, block, 1);
}
else {
hdma_sdio.Init.Direction = DMA_PERIPH_TO_MEMORY;
HAL_DMA_Init(&hdma_sdio);
ret = HAL_SD_ReadBlocks_DMA(&hsd, (uint8_t*)dst, block, 1);
}
if (ret != HAL_OK) {
HAL_DMA_Abort_IT(&hdma_sdio);
HAL_DMA_DeInit(&hdma_sdio);
return false;
}
millis_t timeout = millis() + SD_TIMEOUT;
// Wait the transfer
while (hsd.State != HAL_SD_STATE_READY) {
if (ELAPSED(millis(), timeout)) {
HAL_DMA_Abort_IT(&hdma_sdio);
HAL_DMA_DeInit(&hdma_sdio);
return false;
}
}
while (__HAL_DMA_GET_FLAG(&hdma_sdio, __HAL_DMA_GET_TC_FLAG_INDEX(&hdma_sdio)) != 0
|| __HAL_DMA_GET_FLAG(&hdma_sdio, __HAL_DMA_GET_TE_FLAG_INDEX(&hdma_sdio)) != 0) { /* nada */ }
HAL_DMA_Abort_IT(&hdma_sdio);
HAL_DMA_DeInit(&hdma_sdio);
timeout = millis() + SD_TIMEOUT;
while (HAL_SD_GetCardState(&hsd) != HAL_SD_CARD_TRANSFER) if (ELAPSED(millis(), timeout)) return false;
return true;
}
#endif // !SDIO_FOR_STM32H7
/**
* @brief Read a block
* @details Read a block from media with SDIO
*
* @param block The block index
* @param src The block buffer
*
* @return true on success
*/
bool SDIO_ReadBlock(uint32_t block, uint8_t *dst) {
#ifdef SDIO_FOR_STM32H7
uint32_t timeout = HAL_GetTick() + SD_TIMEOUT;
while (HAL_SD_GetCardState(&hsd) != HAL_SD_CARD_TRANSFER)
if (HAL_GetTick() >= timeout) return false;
waitingRxCplt = 1;
if (HAL_SD_ReadBlocks_DMA(&hsd, (uint8_t*)dst, block, 1) != HAL_OK)
return false;
timeout = HAL_GetTick() + SD_TIMEOUT;
while (waitingRxCplt)
if (HAL_GetTick() >= timeout) return false;
return true;
#else
uint8_t retries = SDIO_READ_RETRIES;
while (retries--) if (SDIO_ReadWriteBlock_DMA(block, nullptr, dst)) return true;
return false;
#endif
}
/**
* @brief Write a block
* @details Write a block to media with SDIO
*
* @param block The block index
* @param src The block data
*
* @return true on success
*/
bool SDIO_WriteBlock(uint32_t block, const uint8_t *src) {
#ifdef SDIO_FOR_STM32H7
uint32_t timeout = HAL_GetTick() + SD_TIMEOUT;
while (HAL_SD_GetCardState(&hsd) != HAL_SD_CARD_TRANSFER)
if (HAL_GetTick() >= timeout) return false;
waitingTxCplt = 1;
if (HAL_SD_WriteBlocks_DMA(&hsd, (uint8_t*)src, block, 1) != HAL_OK)
return false;
timeout = HAL_GetTick() + SD_TIMEOUT;
while (waitingTxCplt)
if (HAL_GetTick() >= timeout) return false;
return true;
#else
uint8_t retries = SDIO_READ_RETRIES;
while (retries--) if (SDIO_ReadWriteBlock_DMA(block, src, nullptr)) return true;
return false;
#endif
}
bool SDIO_IsReady() {
return hsd.State == HAL_SD_STATE_READY;
}
uint32_t SDIO_GetCardSize() {
return (uint32_t)(hsd.SdCard.BlockNbr) * (hsd.SdCard.BlockSize);
}
#endif // SDIO_SUPPORT
#endif // HAL_STM32

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Marlin/src/HAL/STM32/sdio.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#define SDIO_D0_PIN PC8
#define SDIO_D1_PIN PC9
#define SDIO_D2_PIN PC10
#define SDIO_D3_PIN PC11
#define SDIO_CK_PIN PC12
#define SDIO_CMD_PIN PD2

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Marlin/src/HAL/STM32/spi_pins.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
/**
* Define SPI Pins: SCK, MISO, MOSI, SS
*/
#ifndef SD_SCK_PIN
#define SD_SCK_PIN PIN_SPI_SCK
#endif
#ifndef SD_MISO_PIN
#define SD_MISO_PIN PIN_SPI_MISO
#endif
#ifndef SD_MOSI_PIN
#define SD_MOSI_PIN PIN_SPI_MOSI
#endif
#ifndef SD_SS_PIN
#define SD_SS_PIN PIN_SPI_SS
#endif

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Marlin/src/HAL/STM32/tft/gt911.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../../platforms.h"
#ifdef HAL_STM32
#include "../../../inc/MarlinConfig.h"
#if ENABLED(TFT_TOUCH_DEVICE_GT911)
#include "gt911.h"
#include "pinconfig.h"
SW_IIC::SW_IIC(uint16_t sda, uint16_t scl) {
scl_pin = scl;
sda_pin = sda;
}
// Software I2C hardware io init
void SW_IIC::init() {
OUT_WRITE(scl_pin, HIGH);
OUT_WRITE(sda_pin, HIGH);
}
// Software I2C start signal
void SW_IIC::start() {
write_sda(HIGH); // SDA = 1
write_scl(HIGH); // SCL = 1
iic_delay(2);
write_sda(LOW); // SDA = 0
iic_delay(1);
write_scl(LOW); // SCL = 0 // keep SCL low, avoid false stop caused by level jump caused by SDA switching IN/OUT
}
// Software I2C stop signal
void SW_IIC::stop() {
write_scl(LOW); // SCL = 0
iic_delay(2);
write_sda(LOW); // SDA = 0
iic_delay(2);
write_scl(HIGH); // SCL = 1
iic_delay(2);
write_sda(HIGH); // SDA = 1
}
// Software I2C sends ACK or NACK signal
void SW_IIC::send_ack(bool ack) {
write_sda(ack ? LOW : HIGH); // SDA = !ack
iic_delay(2);
write_scl(HIGH); // SCL = 1
iic_delay(2);
write_scl(LOW); // SCL = 0
}
// Software I2C read ACK or NACK signal
bool SW_IIC::read_ack() {
bool error = 0;
set_sda_in();
iic_delay(2);
write_scl(HIGH); // SCL = 1
error = read_sda();
iic_delay(2);
write_scl(LOW); // SCL = 0
set_sda_out();
return error;
}
void SW_IIC::send_byte(uint8_t txd) {
LOOP_L_N(i, 8) {
write_sda(txd & 0x80); // write data bit
txd <<= 1;
iic_delay(1);
write_scl(HIGH); // SCL = 1
iic_delay(2);
write_scl(LOW); // SCL = 0
iic_delay(1);
}
read_ack(); // wait ack
}
uint8_t SW_IIC::read_byte(bool ack) {
uint8_t data = 0;
set_sda_in();
LOOP_L_N(i, 8) {
write_scl(HIGH); // SCL = 1
iic_delay(1);
data <<= 1;
if (read_sda()) data++;
write_scl(LOW); // SCL = 0
iic_delay(2);
}
set_sda_out();
send_ack(ack);
return data;
}
GT911_REG_MAP GT911::reg;
SW_IIC GT911::sw_iic = SW_IIC(GT911_SW_I2C_SDA_PIN, GT911_SW_I2C_SCL_PIN);
void GT911::write_reg(uint16_t reg, uint8_t reg_len, uint8_t* w_data, uint8_t w_len) {
sw_iic.start();
sw_iic.send_byte(gt911_slave_address); // Set IIC Slave address
LOOP_L_N(i, reg_len) { // Set reg address
uint8_t r = (reg >> (8 * (reg_len - 1 - i))) & 0xFF;
sw_iic.send_byte(r);
}
LOOP_L_N(i, w_len) { // Write data to reg
sw_iic.send_byte(w_data[i]);
}
sw_iic.stop();
}
void GT911::read_reg(uint16_t reg, uint8_t reg_len, uint8_t* r_data, uint8_t r_len) {
sw_iic.start();
sw_iic.send_byte(gt911_slave_address); // Set IIC Slave address
LOOP_L_N(i, reg_len) { // Set reg address
uint8_t r = (reg >> (8 * (reg_len - 1 - i))) & 0xFF;
sw_iic.send_byte(r);
}
sw_iic.start();
sw_iic.send_byte(gt911_slave_address + 1); // Set read mode
LOOP_L_N(i, r_len)
r_data[i] = sw_iic.read_byte(1); // Read data from reg
sw_iic.stop();
}
void GT911::Init() {
OUT_WRITE(GT911_RST_PIN, LOW);
OUT_WRITE(GT911_INT_PIN, LOW);
delay(11);
WRITE(GT911_INT_PIN, HIGH);
delayMicroseconds(110);
WRITE(GT911_RST_PIN, HIGH);
delay(6);
WRITE(GT911_INT_PIN, LOW);
delay(55);
SET_INPUT(GT911_INT_PIN);
sw_iic.init();
uint8_t clear_reg = 0x00;
write_reg(0x814E, 2, &clear_reg, 1); // Reset to 0 for start
}
bool GT911::getFirstTouchPoint(int16_t *x, int16_t *y) {
read_reg(0x814E, 2, &reg.REG.status, 1);
if (reg.REG.status >= 0x80 && reg.REG.status <= 0x85) {
read_reg(0x8150, 2, reg.map + 2, 38);
uint8_t clear_reg = 0x00;
write_reg(0x814E, 2, &clear_reg, 1); // Reset to 0 for start
// First touch point
*x = ((reg.REG.point[0].xh & 0x0F) << 8) | reg.REG.point[0].xl;
*y = ((reg.REG.point[0].yh & 0x0F) << 8) | reg.REG.point[0].yl;
return true;
}
return false;
}
bool GT911::getPoint(int16_t *x, int16_t *y) {
static bool touched = 0;
static int16_t read_x = 0, read_y = 0;
static millis_t next_time = 0;
if (ELAPSED(millis(), next_time)) {
touched = getFirstTouchPoint(&read_x, &read_y);
next_time = millis() + 20;
}
*x = read_x;
*y = read_y;
return touched;
}
#endif // TFT_TOUCH_DEVICE_GT911
#endif // HAL_STM32

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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#include "../../../inc/MarlinConfig.h"
#define GT911_SLAVE_ADDRESS 0x28
#if !PIN_EXISTS(GT911_RST)
#error "GT911_RST_PIN is not defined."
#elif !PIN_EXISTS(GT911_INT)
#error "GT911_INT_PIN is not defined."
#elif !PIN_EXISTS(GT911_SW_I2C_SCL)
#error "GT911_SW_I2C_SCL_PIN is not defined."
#elif !PIN_EXISTS(GT911_SW_I2C_SDA)
#error "GT911_SW_I2C_SDA_PIN is not defined."
#endif
class SW_IIC {
private:
uint16_t scl_pin;
uint16_t sda_pin;
void write_scl(bool level) { WRITE(scl_pin, level); }
void write_sda(bool level) { WRITE(sda_pin, level); }
bool read_sda() { return READ(sda_pin); }
void set_sda_out() { SET_OUTPUT(sda_pin); }
void set_sda_in() { SET_INPUT_PULLUP(sda_pin); }
static void iic_delay(uint8_t t) { delayMicroseconds(t); }
public:
SW_IIC(uint16_t sda, uint16_t scl);
// setSCL/SDA have to be called before begin()
void setSCL(uint16_t scl) { scl_pin = scl; }
void setSDA(uint16_t sda) { sda_pin = sda; }
void init(); // Initialize the IO port of IIC
void start(); // Send IIC start signal
void stop(); // Send IIC stop signal
void send_byte(uint8_t txd); // IIC sends a byte
uint8_t read_byte(bool ack); // IIC reads a byte
void send_ack(bool ack); // IIC sends ACK or NACK signal
bool read_ack();
};
typedef struct __attribute__((__packed__)) {
uint8_t xl;
uint8_t xh;
uint8_t yl;
uint8_t yh;
uint8_t sizel;
uint8_t sizeh;
uint8_t reserved;
uint8_t track_id;
} GT911_POINT;
typedef union __attribute__((__packed__)) {
uint8_t map[42];
struct {
uint8_t status; // 0x814E
uint8_t track_id; // 0x814F
GT911_POINT point[5]; // [0]:0x8150 - 0x8157 / [1]:0x8158 - 0x815F / [2]:0x8160 - 0x8167 / [3]:0x8168 - 0x816F / [4]:0x8170 - 0x8177
} REG;
} GT911_REG_MAP;
class GT911 {
private:
static const uint8_t gt911_slave_address = GT911_SLAVE_ADDRESS;
static GT911_REG_MAP reg;
static SW_IIC sw_iic;
static void write_reg(uint16_t reg, uint8_t reg_len, uint8_t* w_data, uint8_t w_len);
static void read_reg(uint16_t reg, uint8_t reg_len, uint8_t* r_data, uint8_t r_len);
public:
static void Init();
static bool getFirstTouchPoint(int16_t *x, int16_t *y);
static bool getPoint(int16_t *x, int16_t *y);
};

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Marlin/src/HAL/STM32/tft/tft_fsmc.cpp
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../../platforms.h"
#ifdef HAL_STM32
#include "../../../inc/MarlinConfig.h"
#if HAS_FSMC_TFT
#include "tft_fsmc.h"
#include "pinconfig.h"
SRAM_HandleTypeDef TFT_FSMC::SRAMx;
DMA_HandleTypeDef TFT_FSMC::DMAtx;
LCD_CONTROLLER_TypeDef *TFT_FSMC::LCD;
void TFT_FSMC::Init() {
uint32_t controllerAddress;
FSMC_NORSRAM_TimingTypeDef Timing, ExtTiming;
uint32_t NSBank = (uint32_t)pinmap_peripheral(digitalPinToPinName(TFT_CS_PIN), PinMap_FSMC_CS);
// Perform the SRAM1 memory initialization sequence
SRAMx.Instance = FSMC_NORSRAM_DEVICE;
SRAMx.Extended = FSMC_NORSRAM_EXTENDED_DEVICE;
// SRAMx.Init
SRAMx.Init.NSBank = NSBank;
SRAMx.Init.DataAddressMux = FSMC_DATA_ADDRESS_MUX_DISABLE;
SRAMx.Init.MemoryType = FSMC_MEMORY_TYPE_SRAM;
SRAMx.Init.MemoryDataWidth = TERN(TFT_INTERFACE_FSMC_8BIT, FSMC_NORSRAM_MEM_BUS_WIDTH_8, FSMC_NORSRAM_MEM_BUS_WIDTH_16);
SRAMx.Init.BurstAccessMode = FSMC_BURST_ACCESS_MODE_DISABLE;
SRAMx.Init.WaitSignalPolarity = FSMC_WAIT_SIGNAL_POLARITY_LOW;
SRAMx.Init.WrapMode = FSMC_WRAP_MODE_DISABLE;
SRAMx.Init.WaitSignalActive = FSMC_WAIT_TIMING_BEFORE_WS;
SRAMx.Init.WriteOperation = FSMC_WRITE_OPERATION_ENABLE;
SRAMx.Init.WaitSignal = FSMC_WAIT_SIGNAL_DISABLE;
SRAMx.Init.ExtendedMode = FSMC_EXTENDED_MODE_ENABLE;
SRAMx.Init.AsynchronousWait = FSMC_ASYNCHRONOUS_WAIT_DISABLE;
SRAMx.Init.WriteBurst = FSMC_WRITE_BURST_DISABLE;
#ifdef STM32F4xx
SRAMx.Init.PageSize = FSMC_PAGE_SIZE_NONE;
#endif
// Read Timing - relatively slow to ensure ID information is correctly read from TFT controller
// Can be decreases from 15-15-24 to 4-4-8 with risk of stability loss
Timing.AddressSetupTime = 15;
Timing.AddressHoldTime = 15;
Timing.DataSetupTime = 24;
Timing.BusTurnAroundDuration = 0;
Timing.CLKDivision = 16;
Timing.DataLatency = 17;
Timing.AccessMode = FSMC_ACCESS_MODE_A;
// Write Timing
// Can be decreases from 8-15-8 to 0-0-1 with risk of stability loss
ExtTiming.AddressSetupTime = 8;
ExtTiming.AddressHoldTime = 15;
ExtTiming.DataSetupTime = 8;
ExtTiming.BusTurnAroundDuration = 0;
ExtTiming.CLKDivision = 16;
ExtTiming.DataLatency = 17;
ExtTiming.AccessMode = FSMC_ACCESS_MODE_A;
__HAL_RCC_FSMC_CLK_ENABLE();
for (uint16_t i = 0; PinMap_FSMC[i].pin != NC; i++)
pinmap_pinout(PinMap_FSMC[i].pin, PinMap_FSMC);
pinmap_pinout(digitalPinToPinName(TFT_CS_PIN), PinMap_FSMC_CS);
pinmap_pinout(digitalPinToPinName(TFT_RS_PIN), PinMap_FSMC_RS);
controllerAddress = FSMC_BANK1_1;
#ifdef PF0
switch (NSBank) {
case FSMC_NORSRAM_BANK2: controllerAddress = FSMC_BANK1_2 ; break;
case FSMC_NORSRAM_BANK3: controllerAddress = FSMC_BANK1_3 ; break;
case FSMC_NORSRAM_BANK4: controllerAddress = FSMC_BANK1_4 ; break;
}
#endif
controllerAddress |= (uint32_t)pinmap_peripheral(digitalPinToPinName(TFT_RS_PIN), PinMap_FSMC_RS);
HAL_SRAM_Init(&SRAMx, &Timing, &ExtTiming);
__HAL_RCC_DMA2_CLK_ENABLE();
#ifdef STM32F1xx
DMAtx.Instance = DMA2_Channel1;
#elif defined(STM32F4xx)
DMAtx.Instance = DMA2_Stream0;
DMAtx.Init.Channel = DMA_CHANNEL_0;
DMAtx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
DMAtx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
DMAtx.Init.MemBurst = DMA_MBURST_SINGLE;
DMAtx.Init.PeriphBurst = DMA_PBURST_SINGLE;
#endif
DMAtx.Init.Direction = DMA_MEMORY_TO_MEMORY;
DMAtx.Init.MemInc = DMA_MINC_DISABLE;
DMAtx.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
DMAtx.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
DMAtx.Init.Mode = DMA_NORMAL;
DMAtx.Init.Priority = DMA_PRIORITY_HIGH;
LCD = (LCD_CONTROLLER_TypeDef *)controllerAddress;
}
uint32_t TFT_FSMC::GetID() {
uint32_t id;
WriteReg(0);
id = LCD->RAM;
if (id == 0)
id = ReadID(LCD_READ_ID);
if ((id & 0xFFFF) == 0 || (id & 0xFFFF) == 0xFFFF)
id = ReadID(LCD_READ_ID4);
return id;
}
uint32_t TFT_FSMC::ReadID(tft_data_t Reg) {
uint32_t id;
WriteReg(Reg);
id = LCD->RAM; // dummy read
id = Reg << 24;
id |= (LCD->RAM & 0x00FF) << 16;
id |= (LCD->RAM & 0x00FF) << 8;
id |= LCD->RAM & 0x00FF;
return id;
}
bool TFT_FSMC::isBusy() {
#ifdef STM32F1xx
#define __IS_DMA_ENABLED(__HANDLE__) ((__HANDLE__)->Instance->CCR & DMA_CCR_EN)
#define __IS_DMA_CONFIGURED(__HANDLE__) ((__HANDLE__)->Instance->CPAR != 0)
#elif defined(STM32F4xx)
#define __IS_DMA_ENABLED(__HANDLE__) ((__HANDLE__)->Instance->CR & DMA_SxCR_EN)
#define __IS_DMA_CONFIGURED(__HANDLE__) ((__HANDLE__)->Instance->PAR != 0)
#endif
if (!__IS_DMA_CONFIGURED(&DMAtx)) return false;
// Check if DMA transfer error or transfer complete flags are set
if ((__HAL_DMA_GET_FLAG(&DMAtx, __HAL_DMA_GET_TE_FLAG_INDEX(&DMAtx)) == 0) && (__HAL_DMA_GET_FLAG(&DMAtx, __HAL_DMA_GET_TC_FLAG_INDEX(&DMAtx)) == 0)) return true;
__DSB();
Abort();
return false;
}
void TFT_FSMC::Abort() {
HAL_DMA_Abort(&DMAtx); // Abort DMA transfer if any
HAL_DMA_DeInit(&DMAtx); // Deconfigure DMA
}
void TFT_FSMC::TransmitDMA(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count) {
DMAtx.Init.PeriphInc = MemoryIncrease;
HAL_DMA_Init(&DMAtx);
HAL_DMA_Start(&DMAtx, (uint32_t)Data, (uint32_t)&(LCD->RAM), Count);
}
void TFT_FSMC::Transmit(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count) {
DMAtx.Init.PeriphInc = MemoryIncrease;
HAL_DMA_Init(&DMAtx);
DataTransferBegin();
HAL_DMA_Start(&DMAtx, (uint32_t)Data, (uint32_t)&(LCD->RAM), Count);
HAL_DMA_PollForTransfer(&DMAtx, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY);
Abort();
}
#endif // HAS_FSMC_TFT
#endif // HAL_STM32

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Marlin/src/HAL/STM32/tft/tft_fsmc.h
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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#pragma once
#include "../../../inc/MarlinConfig.h"
#ifdef STM32F1xx
#include "stm32f1xx_hal.h"
#elif defined(STM32F4xx)
#include "stm32f4xx_hal.h"
#else
#error "FSMC TFT is currently only supported on STM32F1 and STM32F4 hardware."
#endif
#ifndef LCD_READ_ID
#define LCD_READ_ID 0x04 // Read display identification information (0xD3 on ILI9341)
#endif
#ifndef LCD_READ_ID4
#define LCD_READ_ID4 0xD3 // Read display identification information (0xD3 on ILI9341)
#endif
#define DATASIZE_8BIT SPI_DATASIZE_8BIT
#define DATASIZE_16BIT SPI_DATASIZE_16BIT
#define TFT_IO_DRIVER TFT_FSMC
#define DMA_MAX_SIZE 0xFFFF
#define TFT_DATASIZE TERN(TFT_INTERFACE_FSMC_8BIT, DATASIZE_8BIT, DATASIZE_16BIT)
typedef TERN(TFT_INTERFACE_FSMC_8BIT, uint8_t, uint16_t) tft_data_t;
typedef struct {
__IO tft_data_t REG;
__IO tft_data_t RAM;
} LCD_CONTROLLER_TypeDef;
class TFT_FSMC {
private:
static SRAM_HandleTypeDef SRAMx;
static DMA_HandleTypeDef DMAtx;
static LCD_CONTROLLER_TypeDef *LCD;
static uint32_t ReadID(tft_data_t Reg);
static void Transmit(tft_data_t Data) { LCD->RAM = Data; __DSB(); }
static void Transmit(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count);
static void TransmitDMA(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count);
public:
static void Init();
static uint32_t GetID();
static bool isBusy();
static void Abort();
static void DataTransferBegin(uint16_t DataWidth = TFT_DATASIZE) {}
static void DataTransferEnd() {};
static void WriteData(uint16_t Data) { Transmit(tft_data_t(Data)); }
static void WriteReg(uint16_t Reg) { LCD->REG = tft_data_t(Reg); __DSB(); }
static void WriteSequence_DMA(uint16_t *Data, uint16_t Count) { TransmitDMA(DMA_PINC_ENABLE, Data, Count); }
static void WriteMultiple_DMA(uint16_t Color, uint16_t Count) { static uint16_t Data; Data = Color; TransmitDMA(DMA_PINC_DISABLE, &Data, Count); }
static void WriteSequence(uint16_t *Data, uint16_t Count) { Transmit(DMA_PINC_ENABLE, Data, Count); }
static void WriteMultiple(uint16_t Color, uint32_t Count) {
while (Count > 0) {
Transmit(DMA_MINC_DISABLE, &Color, Count > DMA_MAX_SIZE ? DMA_MAX_SIZE : Count);
Count = Count > DMA_MAX_SIZE ? Count - DMA_MAX_SIZE : 0;
}
}
};
#ifdef STM32F1xx
#define FSMC_PIN_DATA STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, AFIO_NONE)
#elif defined(STM32F4xx)
#define FSMC_PIN_DATA STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, GPIO_AF12_FSMC)
#define FSMC_BANK1_1 0x60000000U
#define FSMC_BANK1_2 0x64000000U
#define FSMC_BANK1_3 0x68000000U
#define FSMC_BANK1_4 0x6C000000U
#else
#error No configuration for this MCU
#endif
const PinMap PinMap_FSMC[] = {
{PD_14, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D00
{PD_15, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D01
{PD_0, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D02
{PD_1, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D03
{PE_7, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D04
{PE_8, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D05
{PE_9, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D06
{PE_10, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D07
#if DISABLED(TFT_INTERFACE_FSMC_8BIT)
{PE_11, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D08
{PE_12, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D09
{PE_13, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D10
{PE_14, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D11
{PE_15, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D12
{PD_8, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D13
{PD_9, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D14
{PD_10, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_D15
#endif
{PD_4, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_NOE
{PD_5, FSMC_NORSRAM_DEVICE, FSMC_PIN_DATA}, // FSMC_NWE
{NC, NP, 0}
};
const PinMap PinMap_FSMC_CS[] = {
{PD_7, (void *)FSMC_NORSRAM_BANK1, FSMC_PIN_DATA}, // FSMC_NE1
#ifdef PF0
{PG_9, (void *)FSMC_NORSRAM_BANK2, FSMC_PIN_DATA}, // FSMC_NE2
{PG_10, (void *)FSMC_NORSRAM_BANK3, FSMC_PIN_DATA}, // FSMC_NE3
{PG_12, (void *)FSMC_NORSRAM_BANK4, FSMC_PIN_DATA}, // FSMC_NE4
#endif
{NC, NP, 0}
};
#if ENABLED(TFT_INTERFACE_FSMC_8BIT)
#define FSMC_RS(A) (void *)((2 << (A-1)) - 1)
#else
#define FSMC_RS(A) (void *)((2 << A) - 2)
#endif
const PinMap PinMap_FSMC_RS[] = {
#ifdef PF0
{PF_0, FSMC_RS( 0), FSMC_PIN_DATA}, // FSMC_A0
{PF_1, FSMC_RS( 1), FSMC_PIN_DATA}, // FSMC_A1
{PF_2, FSMC_RS( 2), FSMC_PIN_DATA}, // FSMC_A2
{PF_3, FSMC_RS( 3), FSMC_PIN_DATA}, // FSMC_A3
{PF_4, FSMC_RS( 4), FSMC_PIN_DATA}, // FSMC_A4
{PF_5, FSMC_RS( 5), FSMC_PIN_DATA}, // FSMC_A5
{PF_12, FSMC_RS( 6), FSMC_PIN_DATA}, // FSMC_A6
{PF_13, FSMC_RS( 7), FSMC_PIN_DATA}, // FSMC_A7
{PF_14, FSMC_RS( 8), FSMC_PIN_DATA}, // FSMC_A8
{PF_15, FSMC_RS( 9), FSMC_PIN_DATA}, // FSMC_A9
{PG_0, FSMC_RS(10), FSMC_PIN_DATA}, // FSMC_A10
{PG_1, FSMC_RS(11), FSMC_PIN_DATA}, // FSMC_A11
{PG_2, FSMC_RS(12), FSMC_PIN_DATA}, // FSMC_A12
{PG_3, FSMC_RS(13), FSMC_PIN_DATA}, // FSMC_A13
{PG_4, FSMC_RS(14), FSMC_PIN_DATA}, // FSMC_A14
{PG_5, FSMC_RS(15), FSMC_PIN_DATA}, // FSMC_A15
#endif
{PD_11, FSMC_RS(16), FSMC_PIN_DATA}, // FSMC_A16
{PD_12, FSMC_RS(17), FSMC_PIN_DATA}, // FSMC_A17
{PD_13, FSMC_RS(18), FSMC_PIN_DATA}, // FSMC_A18
{PE_3, FSMC_RS(19), FSMC_PIN_DATA}, // FSMC_A19
{PE_4, FSMC_RS(20), FSMC_PIN_DATA}, // FSMC_A20
{PE_5, FSMC_RS(21), FSMC_PIN_DATA}, // FSMC_A21
{PE_6, FSMC_RS(22), FSMC_PIN_DATA}, // FSMC_A22
{PE_2, FSMC_RS(23), FSMC_PIN_DATA}, // FSMC_A23
#ifdef PF0
{PG_13, FSMC_RS(24), FSMC_PIN_DATA}, // FSMC_A24
{PG_14, FSMC_RS(25), FSMC_PIN_DATA}, // FSMC_A25
#endif
{NC, NP, 0}
};

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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2021 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include "../../platforms.h"
#ifdef HAL_STM32
#include "../../../inc/MarlinConfig.h"
#if HAS_LTDC_TFT
#include "tft_ltdc.h"
#include "pinconfig.h"
#define FRAME_BUFFER_ADDRESS 0XC0000000 // SDRAM address
#define SDRAM_TIMEOUT ((uint32_t)0xFFFF)
#define REFRESH_COUNT ((uint32_t)0x02A5) // SDRAM refresh counter
#define SDRAM_MODEREG_BURST_LENGTH_1 ((uint16_t)0x0000)
#define SDRAM_MODEREG_BURST_LENGTH_2 ((uint16_t)0x0001)
#define SDRAM_MODEREG_BURST_LENGTH_4 ((uint16_t)0x0002)
#define SDRAM_MODEREG_BURST_LENGTH_8 ((uint16_t)0x0004)
#define SDRAM_MODEREG_BURST_TYPE_SEQUENTIAL ((uint16_t)0x0000)
#define SDRAM_MODEREG_BURST_TYPE_INTERLEAVED ((uint16_t)0x0008)
#define SDRAM_MODEREG_CAS_LATENCY_2 ((uint16_t)0x0020)
#define SDRAM_MODEREG_CAS_LATENCY_3 ((uint16_t)0x0030)
#define SDRAM_MODEREG_OPERATING_MODE_STANDARD ((uint16_t)0x0000)
#define SDRAM_MODEREG_WRITEBURST_MODE_PROGRAMMED ((uint16_t)0x0000)
#define SDRAM_MODEREG_WRITEBURST_MODE_SINGLE ((uint16_t)0x0200)
void SDRAM_Initialization_Sequence(SDRAM_HandleTypeDef *hsdram, FMC_SDRAM_CommandTypeDef *Command) {
__IO uint32_t tmpmrd =0;
/* Step 1: Configure a clock configuration enable command */
Command->CommandMode = FMC_SDRAM_CMD_CLK_ENABLE;
Command->CommandTarget = FMC_SDRAM_CMD_TARGET_BANK1;
Command->AutoRefreshNumber = 1;
Command->ModeRegisterDefinition = 0;
/* Send the command */
HAL_SDRAM_SendCommand(hsdram, Command, SDRAM_TIMEOUT);
/* Step 2: Insert 100 us minimum delay */
/* Inserted delay is equal to 1 ms due to systick time base unit (ms) */
HAL_Delay(1);
/* Step 3: Configure a PALL (precharge all) command */
Command->CommandMode = FMC_SDRAM_CMD_PALL;
Command->CommandTarget = FMC_SDRAM_CMD_TARGET_BANK1;
Command->AutoRefreshNumber = 1;
Command->ModeRegisterDefinition = 0;
/* Send the command */
HAL_SDRAM_SendCommand(hsdram, Command, SDRAM_TIMEOUT);
/* Step 4 : Configure a Auto-Refresh command */
Command->CommandMode = FMC_SDRAM_CMD_AUTOREFRESH_MODE;
Command->CommandTarget = FMC_SDRAM_CMD_TARGET_BANK1;
Command->AutoRefreshNumber = 8;
Command->ModeRegisterDefinition = 0;
/* Send the command */
HAL_SDRAM_SendCommand(hsdram, Command, SDRAM_TIMEOUT);
/* Step 5: Program the external memory mode register */
tmpmrd = (uint32_t)(SDRAM_MODEREG_BURST_LENGTH_1 |
SDRAM_MODEREG_BURST_TYPE_SEQUENTIAL |
SDRAM_MODEREG_CAS_LATENCY_2 |
SDRAM_MODEREG_OPERATING_MODE_STANDARD |
SDRAM_MODEREG_WRITEBURST_MODE_SINGLE);
Command->CommandMode = FMC_SDRAM_CMD_LOAD_MODE;
Command->CommandTarget = FMC_SDRAM_CMD_TARGET_BANK1;
Command->AutoRefreshNumber = 1;
Command->ModeRegisterDefinition = tmpmrd;
/* Send the command */
HAL_SDRAM_SendCommand(hsdram, Command, SDRAM_TIMEOUT);
/* Step 6: Set the refresh rate counter */
/* Set the device refresh rate */
HAL_SDRAM_ProgramRefreshRate(hsdram, REFRESH_COUNT);
}
void SDRAM_Config() {
__HAL_RCC_SYSCFG_CLK_ENABLE();
__HAL_RCC_FMC_CLK_ENABLE();
SDRAM_HandleTypeDef hsdram;
FMC_SDRAM_TimingTypeDef SDRAM_Timing;
FMC_SDRAM_CommandTypeDef command;
/* Configure the SDRAM device */
hsdram.Instance = FMC_SDRAM_DEVICE;
hsdram.Init.SDBank = FMC_SDRAM_BANK1;
hsdram.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_9;
hsdram.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_13;
hsdram.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_16;
hsdram.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
hsdram.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_2;
hsdram.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
hsdram.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
hsdram.Init.ReadBurst = FMC_SDRAM_RBURST_ENABLE;
hsdram.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_0;
/* Timing configuration for 100Mhz as SDRAM clock frequency (System clock is up to 200Mhz) */
SDRAM_Timing.LoadToActiveDelay = 2;
SDRAM_Timing.ExitSelfRefreshDelay = 8;
SDRAM_Timing.SelfRefreshTime = 6;
SDRAM_Timing.RowCycleDelay = 6;
SDRAM_Timing.WriteRecoveryTime = 2;
SDRAM_Timing.RPDelay = 2;
SDRAM_Timing.RCDDelay = 2;
/* Initialize the SDRAM controller */
if (HAL_SDRAM_Init(&hsdram, &SDRAM_Timing) != HAL_OK)
{
/* Initialization Error */
}
/* Program the SDRAM external device */
SDRAM_Initialization_Sequence(&hsdram, &command);
}
void LTDC_Config() {
__HAL_RCC_LTDC_CLK_ENABLE();
__HAL_RCC_DMA2D_CLK_ENABLE();
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
/* The PLL3R is configured to provide the LTDC PCLK clock */
/* PLL3_VCO Input = HSE_VALUE / PLL3M = 25Mhz / 5 = 5 Mhz */
/* PLL3_VCO Output = PLL3_VCO Input * PLL3N = 5Mhz * 160 = 800 Mhz */
/* PLLLCDCLK = PLL3_VCO Output/PLL3R = 800Mhz / 16 = 50Mhz */
/* LTDC clock frequency = PLLLCDCLK = 50 Mhz */
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
PeriphClkInitStruct.PLL3.PLL3M = 5;
PeriphClkInitStruct.PLL3.PLL3N = 160;
PeriphClkInitStruct.PLL3.PLL3FRACN = 0;
PeriphClkInitStruct.PLL3.PLL3P = 2;
PeriphClkInitStruct.PLL3.PLL3Q = 2;
PeriphClkInitStruct.PLL3.PLL3R = (800 / LTDC_LCD_CLK);
PeriphClkInitStruct.PLL3.PLL3VCOSEL = RCC_PLL3VCOWIDE;
PeriphClkInitStruct.PLL3.PLL3RGE = RCC_PLL3VCIRANGE_2;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
LTDC_HandleTypeDef hltdc_F;
LTDC_LayerCfgTypeDef pLayerCfg;
/* LTDC Initialization -------------------------------------------------------*/
/* Polarity configuration */
/* Initialize the horizontal synchronization polarity as active low */
hltdc_F.Init.HSPolarity = LTDC_HSPOLARITY_AL;
/* Initialize the vertical synchronization polarity as active low */
hltdc_F.Init.VSPolarity = LTDC_VSPOLARITY_AL;
/* Initialize the data enable polarity as active low */
hltdc_F.Init.DEPolarity = LTDC_DEPOLARITY_AL;
/* Initialize the pixel clock polarity as input pixel clock */
hltdc_F.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
/* Timing configuration */
hltdc_F.Init.HorizontalSync = (LTDC_LCD_HSYNC - 1);
hltdc_F.Init.VerticalSync = (LTDC_LCD_VSYNC - 1);
hltdc_F.Init.AccumulatedHBP = (LTDC_LCD_HSYNC + LTDC_LCD_HBP - 1);
hltdc_F.Init.AccumulatedVBP = (LTDC_LCD_VSYNC + LTDC_LCD_VBP - 1);
hltdc_F.Init.AccumulatedActiveH = (TFT_HEIGHT + LTDC_LCD_VSYNC + LTDC_LCD_VBP - 1);
hltdc_F.Init.AccumulatedActiveW = (TFT_WIDTH + LTDC_LCD_HSYNC + LTDC_LCD_HBP - 1);
hltdc_F.Init.TotalHeigh = (TFT_HEIGHT + LTDC_LCD_VSYNC + LTDC_LCD_VBP + LTDC_LCD_VFP - 1);
hltdc_F.Init.TotalWidth = (TFT_WIDTH + LTDC_LCD_HSYNC + LTDC_LCD_HBP + LTDC_LCD_HFP - 1);
/* Configure R,G,B component values for LCD background color : all black background */
hltdc_F.Init.Backcolor.Blue = 0;
hltdc_F.Init.Backcolor.Green = 0;
hltdc_F.Init.Backcolor.Red = 0;
hltdc_F.Instance = LTDC;
/* Layer0 Configuration ------------------------------------------------------*/
/* Windowing configuration */
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = TFT_WIDTH;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = TFT_HEIGHT;
/* Pixel Format configuration*/
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
/* Start Address configuration : frame buffer is located at SDRAM memory */
pLayerCfg.FBStartAdress = (uint32_t)(FRAME_BUFFER_ADDRESS);
/* Alpha constant (255 == totally opaque) */
pLayerCfg.Alpha = 255;
/* Default Color configuration (configure A,R,G,B component values) : no background color */
pLayerCfg.Alpha0 = 0; /* fully transparent */
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
/* Configure blending factors */
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_CA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_CA;
/* Configure the number of lines and number of pixels per line */
pLayerCfg.ImageWidth = TFT_WIDTH;
pLayerCfg.ImageHeight = TFT_HEIGHT;
/* Configure the LTDC */
if (HAL_LTDC_Init(&hltdc_F) != HAL_OK)
{
/* Initialization Error */
}
/* Configure the Layer*/
if (HAL_LTDC_ConfigLayer(&hltdc_F, &pLayerCfg, 0) != HAL_OK)
{
/* Initialization Error */
}
}
uint16_t TFT_LTDC::x_min = 0;
uint16_t TFT_LTDC::x_max = 0;
uint16_t TFT_LTDC::y_min = 0;
uint16_t TFT_LTDC::y_max = 0;
uint16_t TFT_LTDC::x_cur = 0;
uint16_t TFT_LTDC::y_cur = 0;
uint8_t TFT_LTDC::reg = 0;
volatile uint16_t* TFT_LTDC::framebuffer = (volatile uint16_t* )FRAME_BUFFER_ADDRESS;
void TFT_LTDC::Init() {
// SDRAM pins init
for (uint16_t i = 0; PinMap_SDRAM[i].pin != NC; i++)
pinmap_pinout(PinMap_SDRAM[i].pin, PinMap_SDRAM);
// SDRAM peripheral config
SDRAM_Config();
// LTDC pins init
for (uint16_t i = 0; PinMap_LTDC[i].pin != NC; i++)
pinmap_pinout(PinMap_LTDC[i].pin, PinMap_LTDC);
// LTDC peripheral config
LTDC_Config();
}
uint32_t TFT_LTDC::GetID() {
return 0xABAB;
}
uint32_t TFT_LTDC::ReadID(tft_data_t Reg) {
return 0xABAB;
}
bool TFT_LTDC::isBusy() {
return false;
}
uint16_t TFT_LTDC::ReadPoint(uint16_t x, uint16_t y) {
return framebuffer[(TFT_WIDTH * y) + x];
}
void TFT_LTDC::DrawPoint(uint16_t x, uint16_t y, uint16_t color) {
framebuffer[(TFT_WIDTH * y) + x] = color;
}
void TFT_LTDC::DrawRect(uint16_t sx, uint16_t sy, uint16_t ex, uint16_t ey, uint16_t color) {
if (sx == ex || sy == ey) return;
uint16_t offline = TFT_WIDTH - (ex - sx);
uint32_t addr = (uint32_t)&framebuffer[(TFT_WIDTH * sy) + sx];
CBI(DMA2D->CR, 0);
DMA2D->CR = 3 << 16;
DMA2D->OPFCCR = 0X02;
DMA2D->OOR = offline;
DMA2D->OMAR = addr;
DMA2D->NLR = (ey - sy) | ((ex - sx) << 16);
DMA2D->OCOLR = color;
SBI(DMA2D->CR, 0);
uint32_t timeout = 0;
while (!TEST(DMA2D->ISR, 1)) {
timeout++;
if (timeout > 0x1FFFFF) break;
}
SBI(DMA2D->IFCR, 1);
}
void TFT_LTDC::DrawImage(uint16_t sx, uint16_t sy, uint16_t ex, uint16_t ey, uint16_t *colors) {
if (sx == ex || sy == ey) return;
uint16_t offline = TFT_WIDTH - (ex - sx);
uint32_t addr = (uint32_t)&framebuffer[(TFT_WIDTH * sy) + sx];
CBI(DMA2D->CR, 0);
DMA2D->CR = 0 << 16;
DMA2D->FGPFCCR = 0X02;
DMA2D->FGOR = 0;
DMA2D->OOR = offline;
DMA2D->FGMAR = (uint32_t)colors;
DMA2D->OMAR = addr;
DMA2D->NLR = (ey - sy) | ((ex - sx) << 16);
SBI(DMA2D->CR, 0);
uint32_t timeout = 0;
while (!TEST(DMA2D->ISR, 1)) {
timeout++;
if (timeout > 0x1FFFFF) break;
}
SBI(DMA2D->IFCR, 1);
}
void TFT_LTDC::WriteData(uint16_t data) {
switch (reg) {
case 0x01: x_cur = x_min = data; return;
case 0x02: x_max = data; return;
case 0x03: y_cur = y_min = data; return;
case 0x04: y_max = data; return;
}
Transmit(data);
}
void TFT_LTDC::Transmit(tft_data_t Data) {
DrawPoint(x_cur, y_cur, Data);
x_cur++;
if (x_cur > x_max) {
x_cur = x_min;
y_cur++;
if (y_cur > y_max) y_cur = y_min;
}
}
void TFT_LTDC::WriteReg(uint16_t Reg) {
reg = Reg;
}
void TFT_LTDC::Transmit(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count) {
while (x_cur != x_min && Count) {
Transmit(*Data);
if (MemoryIncrease == DMA_PINC_ENABLE) Data++;
Count--;
}
uint16_t width = x_max - x_min + 1;
uint16_t height = Count / width;
uint16_t x_end_cnt = Count - (width * height);
if (height) {
if (MemoryIncrease == DMA_PINC_ENABLE) {
DrawImage(x_min, y_cur, x_min + width, y_cur + height, Data);
Data += width * height;
}
else
DrawRect(x_min, y_cur, x_min + width, y_cur + height, *Data);
y_cur += height;
}
while (x_end_cnt) {
Transmit(*Data);
if (MemoryIncrease == DMA_PINC_ENABLE) Data++;
x_end_cnt--;
}
}
#endif // HAS_LTDC_TFT
#endif // HAL_STM32

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