/*******************************************************************************
* Function Name : FLASH_If_Erase
* Description : Erase sector
* Input : None
* Output : None
* Return : None
*******************************************************************************/
uint16_t FLASH_If_Erase(uint32_t Add)
{
/* Unlock the internal flash */
FLASH_Unlock();
FLASH_ClearFlags();
#if defined (STM32F2XX) || defined (STM32F4XX)
/* Disable sector write protection if it's already protected */
uint16_t OB_WRP_Sector = FLASH_SectorToWriteProtect(FLASH_INTERNAL, Add);
FLASH_WriteProtection_Disable(OB_WRP_Sector);
/* Check which sector has to be erased */
uint16_t FLASH_Sector = FLASH_SectorToErase(FLASH_INTERNAL, Add);
FLASH_Status status = FLASH_EraseSector(FLASH_Sector, VoltageRange_3);
#elif defined(STM32F10X_CL)
/* Call the standard Flash erase function */
FLASH_ErasePage(Add);
#endif /* STM32F2XX */
/* Lock the internal flash */
FLASH_Lock();
if (status != FLASH_COMPLETE) return MAL_FAIL;
return MAL_OK;
}
bool FLASH_WriteProtectMemory(flash_device_t flashDeviceID, uint32_t startAddress, uint32_t length, bool protect)
{
if (FLASH_CheckValidAddressRange(flashDeviceID, startAddress, length) != true)
{
return false;
}
if (flashDeviceID == FLASH_INTERNAL)
{
/* Get the first OB_WRP_Sector */
uint16_t OB_WRP_Sector = FLASH_SectorToWriteProtect(FLASH_INTERNAL, startAddress);
uint16_t end = FLASH_SectorToWriteProtect(FLASH_INTERNAL, startAddress+length-1)<<1;
if (OB_WRP_Sector < OB_WRP_Sector_0)
{
return false;
}
while (!(OB_WRP_Sector & end))
{
if (protect)
{
FLASH_WriteProtection_Enable(OB_WRP_Sector);
}
else
{
FLASH_WriteProtection_Disable(OB_WRP_Sector);
}
OB_WRP_Sector <<= 1;
}
return true;
}
return false;
}
