FLASH freertos hard fault

[Recep]

Hi

STM32H563ZI, I am using freertos and in first task I try to make flash write operation code;

Flash::Error Flash::flashErase(const uint8_t sectorNumber)

{

uint32_t sector_error = 0;

FLASH_EraseInitTypeDef erase;

erase.TypeErase = FLASH_TYPEERASE_SECTORS;

erase.Banks = FLASH_BANK_2;

erase.Sector = sectorNumber;

erase.NbSectors = SINGLE_SECTOR_SIZE;

 

xSemaphoreTake(FlashMutex, portMAX_DELAY);

HAL_FLASH_Unlock();

if (HAL_FLASHEx_Erase(&erase, &sector_error) != HAL_OK)

{

HAL_FLASH_Lock();

xSemaphoreGive(FlashMutex);

return Error::kEraseFail;

}

HAL_FLASH_Lock();

xSemaphoreGive(FlashMutex);

return Error::kEraseSuccess;

}

 

but it goes hard fault

if I dont use HAL_FLASH_Unlock(); functions it is normal but it cant erase so it is ridiculous

how can I work this ?

[Tesla DeLorean]

Not sat down and tested this, but suspect you need to config the MPU, change the protection mode it's running in or watch you don't erase active code.

https://github.com/STMicroelectronics/STM32CubeH5/blob/main/Projects/NUCLEO-H563ZI/Examples/FLASH/FLASH_EraseProgram/Src/main.c

[Tesla DeLorean]

https://community.st.com/t5/stm32-mcus-products/stm32h563-reading-flash-size-data-register-at-0x08fff80c-gt-hard/td-p/618904