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Update flash.c to support the G0 programming

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The STM32G0 uses double word programming for flash.  Update the routine to handle this new architecture.
This commit is contained in:
Ryan Edwards 2022-11-01 22:25:10 -04:00 committed by fenugrec
parent b24cba3a55
commit d719705e93
1 changed files with 22 additions and 1 deletions
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21
src/flash.c
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@ -79,6 +79,12 @@ void flash_flush(void)
erase_pages.TypeErase = FLASH_TYPEERASE_SECTORS;
erase_pages.Sector = FLASH_SECTOR_7;
erase_pages.NbSectors = 1U;
#elif defined(STM32G0)
uint32_t user_id_page = ((uint32_t)&flash_data_rom - FLASH_BASE) / FLASH_PAGE_SIZE;
erase_pages.TypeErase = FLASH_TYPEERASE_PAGES;
erase_pages.Banks = 0;
erase_pages.Page = user_id_page;
erase_pages.NbPages = 1;
#endif
HAL_FLASH_Unlock();
@ -87,11 +93,26 @@ void flash_flush(void)
#elif defined(STM32F4)
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR |
FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
#elif defined(STM32G0)
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_OPTVERR);
#endif
uint32_t error = 0;
HAL_FLASHEx_Erase(&erase_pages, &error);
if (error==0xFFFFFFFF) { // erase finished successfully
#if defined(STM32G0)
uint32_t address = (uint32_t)&flash_data_rom;
uint32_t end_address = (uint32_t)&flash_data_rom + (sizeof(flash_data_t));
while (address < end_address)
{
uint64_t data_64 = *(uint64_t*)(&flash_data_ram + (address - (uint32_t)&flash_data_rom));
if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_DOUBLEWORD, address, data_64) == HAL_OK) {
address = address + 8; /* increment to next double word*/
}
}
#else
HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, (uint32_t)&flash_data_rom.user_id[0], flash_data_ram.user_id[0]);
#endif
}
HAL_FLASH_Lock();