Add portable CRC and SMBus PEC crates

README.md

@@ -861,6 +861,7 @@ Work in progress drivers. Help the authors make these crates awesome!
 1. [`cmim`], or Cortex-M Interrupt Move: A crate for Cortex-M devices to move data to interrupt context, without needing a critical section to access the data within an interrupt, and to remove the need for the "mutex dance" - ![crates.io](https://img.shields.io/crates/v/cmim.svg)
 1. [dcmimu]: An algorithm for fusing low-cost triaxial MEMS gyroscope and accelerometer measurements ![crates.io](https://img.shields.io/crates/v/dcmimu.svg)
 1. [debouncr]: A simple no-std input debouncer to detect rising/falling edges with minimal RAM requirements. ![crates.io](https://img.shields.io/crates/v/debouncr.svg)
+1. [embedded-crc-macros](https://crates.io/crates/embedded-crc-macros): Macros implementing portable CRC algorithms and build-time lookup table generation. ![crates.io](https://img.shields.io/crates/v/embedded-crc-macros.svg)
 1. [embedded-websocket](https://crates.io/crates/embedded-websocket): A lightweight server and client websocket library for embedded systems. ![crates.io](https://img.shields.io/crates/v/embedded-websocket.svg)
 1. [endian_codec]: (En/De)code rust types as packed bytes with specific order (endian). Supports derive. - [![crates.io](https://img.shields.io/crates/v/endian_codec.svg)](https://crates.io/crates/endian_codec)
 1. [gcode](https://github.com/Michael-F-Bryan/gcode-rs): A gcode parser for no-std applications - [![crates.io](https://img.shields.io/crates/v/gcode.svg)](https://crates.io/crates/gcode)
@@ -883,6 +884,7 @@ Work in progress drivers. Help the authors make these crates awesome!
 1. [qemu-exit]: Quit a running QEMU session with user-defined exit code. Useful for unit or integration tests using QEMU. - ![crates.io](https://img.shields.io/crates/v/qemu-exit.svg)
 1. [register-rs](https://github.com/rust-embedded/register-rs): Unified interface for MMIO and CPU registers. Provides type-safe bitfield manipulation. `register-rs` is Tock registers with added support for CPU register definitions using the same API as for the MMIO registers. This enables homogeneous interfaces to registers of all kinds. - ![crates.io](https://img.shields.io/crates/v/register.svg)
 1. [scroll](https://crates.io/crates/scroll): extensible and endian-aware Read/Write traits for generic containers - ![crates.io](https://img.shields.io/crates/v/scroll.svg)
+1. [smbus-pec](https://crates.io/crates/smbus-pec): Minimal portable System Management Bus Packet Error Code calculation algorithm. ![crates.io](https://img.shields.io/crates/v/smbus-pec.svg)
 1. [smoltcp](https://github.com/m-labs/smoltcp): a small TCP/IP stack that runs without `alloc`. ![crates.io](https://img.shields.io/crates/v/smoltcp.svg)
 1. [tinybmp](https://crates.io/crates/tinybmp): No-std, no-alloc BMP parser for embedded systems. [Introductory blog post](https://wapl.es/rust/2019/03/04/embedded-graphics-0.4.7-bmp-support.html) - ![crates.io](https://img.shields.io/crates/v/tinybmp.svg)
 1. [vga-framebuffer]: A VGA signal generator and font renderer for VGA-less microcontrollers. Used by [Monotron](https://github.com/thejpster/monotron) to generate 48 by 36 character display using 3 SPI peripherals and a timer. ![crates.io](https://img.shields.io/crates/v/vga-framebuffer.svg)