Hi Everyone,
I have written a firmware which write some meta data in STM32L4 internal flash memory. But sometimes it happens that code gets stuck in a loop while erasing the flash memory.
uint32_t UserFunctionForErasingFlash(void) {
FLASH_EraseInitTypeDef EraseInitStruct;
uint32_t SectorError = 0;
uint32_t Success=1;
EraseInitStruct.TypeErase = FLASH_TYPEERASE_PAGES;
EraseInitStruct.Banks = GetBank(MDM_FLASH_ADD);
EraseInitStruct.Page = GetPage(MDM_FLASH_ADD);
EraseInitStruct.NbPages = 2;
/* Unlock the Flash to enable the flash control register access *************/
g_unlock_erase_flash = HAL_FLASH_Unlock();
// clear_flash_flags();
if(HAL_FLASHEx_Erase(&EraseInitStruct, &SectorError) != HAL_OK){
g_erase_error_code = HAL_FLASH_GetError();
Success=0;
Error_Handler();
}
/* Lock the Flash to disable the flash control register access (recommended
to protect the FLASH memory against possible unwanted operation) *********/
HAL_FLASH_Lock();
return Success;
}
Above is the code snippet, where I checked FLASH_UNLOCK is happening perfectly. And also Bank and page number are also correct. But Erasing the flash memory is giving error HAL_FLASH_ERROR_PGS and HAL_FLASH_ERROR_WRP.
To understand the reason, I uploaded the code again, and it gets stuck here (2 times I checked it). But when I started debugging line by line, then it worked perfectly. After erasing, write also happen correctly.
Has anyone encountered a similar issue or have insight, how can I recreate this issue and why erasing the internal flash is giving this issue and how can I resolve it?
