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ff35dc6d3f
That zone is used by some boot loaders to save flags that control the flashing at boot process. The exclusion zone should be defined in the **.INI** board environments that require it by: ```log -DEEPROM_EXCL_ZONE=100,200 ``` or in the board pin file by: ```c++ #define EEPROM_EXCL_ZONE 100,200 // Test a range or #define EEPROM_EXCL_ZONE 333 // Test a single byte ``` For example, in the Ender-3S1 F4: Marlin\src\pins\stm32f4\pins_CREALITY_V24S1_301F4.h: ```c++ #define EEPROM_EXCL_ZONE 919,926 // Test a range ``` ### Related Issues In the Ender-3 S1 with the STM32F401 SoC the range of exclusion is from 919 to 926. Even if the zone is filled with 0xFF values, the boot loader changes it when the printer is rebooted: ```log 0370: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 0380: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 0390: FF FF FF FF 00 FF FF FF FF FF FF FF FF 66 FF FF 03A0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 03B0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ``` If the zone is not excluded, the boot loader may not allow flashing new firmware and may also cause CRC EEPROM corruption. Perhaps related to: https://github.com/mriscoc/Ender3V2S1/issues/125 https://github.com/mriscoc/Ender3V2S1/issues/1180 https://github.com/MarlinFirmware/Marlin/issues/26144 |
9 months ago | |
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| stm32f1 | 9 months ago | |
| stm32f4 | 9 months ago | |
| stm32g0 | 9 months ago | |