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GD32 flash workaround

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Addressing #181

At least some GD32 devices seem to require unlocking the flash twice. As the unlock function exits with `HAL_OK` if the flash is already unlocked, STM32 devices can run the same code without issues.
This commit is contained in:
M-Byte 2022-06-08 09:42:54 +02:00
parent b718295423
commit c6cd49d913
1 changed files with 5 additions and 0 deletions
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5
src/stm32_platform.cpp
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@ -60,6 +60,11 @@ void Stm32Platform::commitToEeprom()
return; return;
for (uint16_t i = 0; i < _eepromSize; ++i) for (uint16_t i = 0; i < _eepromSize; ++i)
eeprom_buffered_write_byte(i, _eepromPtr[i]); eeprom_buffered_write_byte(i, _eepromPtr[i]);
// For some GD32 chips, the flash needs to be unlocked twice
// and the first call will fail. If the first call is
// successful, the second one (inside eeprom_buffer_flush)
// does nothing.
HAL_FLASH_Unlock();
eeprom_buffer_flush(); eeprom_buffer_flush();
} }