/**
* @brief Enable the write protection of the desired bank1 or bank 2 sectors
*
* @note When the memory read protection level is selected (RDP level = 1),
* it is not possible to program or erase the flash sector i if CortexM4
* debug features are connected or boot code is executed in RAM, even if nWRPi = 1
* @note Active value of nWRPi bits is inverted when PCROP mode is active (SPRMOD =1).
*
* @param WRPSector: specifies the sector(s) to be write protected.
* This parameter can be one of the following values:
* @arg WRPSector: A value between OB_WRP_SECTOR_0 and OB_WRP_SECTOR_23
* @arg OB_WRP_SECTOR_All
* @note BANK2 starts from OB_WRP_SECTOR_12
*
* @param Banks: Enable write protection on all the sectors for the specific bank
* This parameter can be one of the following values:
* @arg FLASH_BANK_1: WRP on all sectors of bank1
* @arg FLASH_BANK_2: WRP on all sectors of bank2
* @arg FLASH_BANK_BOTH: WRP on all sectors of bank1 & bank2
*
* @retval HAL FLASH State
*/
static HAL_StatusTypeDef FLASH_OB_EnableWRP(uint32_t WRPSector, uint32_t Banks)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_OB_WRP_SECTOR(WRPSector));
assert_param(IS_FLASH_BANK(Banks));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
if(((WRPSector == OB_WRP_SECTOR_All) && ((Banks == FLASH_BANK_1) || (Banks == FLASH_BANK_BOTH))) ||
(WRPSector < OB_WRP_SECTOR_12))
{
if(WRPSector == OB_WRP_SECTOR_All)
{
/*Write protection on all sector of BANK1*/
*(__IO uint16_t*)OPTCR_BYTE2_ADDRESS &= (~(WRPSector>>12));
}
else
{
/*Write protection done on sectors of BANK1*/
*(__IO uint16_t*)OPTCR_BYTE2_ADDRESS &= (~WRPSector);
}
}
/**
* @brief Enable the write protection of the desired bank1 or bank 2 sectors
* @param WRPSector specifies the sector(s) to be write protected.
* This parameter can be one of the following values:
* @arg WRPSector: A combination of OB_WRP_SECTOR_0 to OB_WRP_SECTOR_0 or OB_WRP_SECTOR_All
*
* @param Banks the specific bank to apply WRP sectors
* This parameter can be one of the following values:
* @arg FLASH_BANK_1: WRP enable on specified bank1 sectors
* @arg FLASH_BANK_2: WRP enable on specified bank2 sectors
* @arg FLASH_BANK_BOTH: WRP enable bank1 and bank2 specified sectors
*
* @retval HAL FLASH State
*/
static HAL_StatusTypeDef FLASH_OB_EnableWRP(uint32_t WRPSector, uint32_t Banks)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_FLASH_BANK(Banks));
if((Banks & FLASH_BANK_1) == FLASH_BANK_1)
{
assert_param(IS_OB_WRP_SECTOR(WRPSector));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE, FLASH_BANK_1);
if(status == HAL_OK)
{
FLASH->WPSN_PRG1 &= (~(WRPSector & FLASH_WPSN_WRPSN));
}
}
if((Banks & FLASH_BANK_2) == FLASH_BANK_2)
{
assert_param(IS_OB_WRP_SECTOR(WRPSector));
/* Wait for last operation to be completed */
status |= FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE, FLASH_BANK_2);
if(status == HAL_OK)
{
FLASH->WPSN_PRG2 &= (~(WRPSector & FLASH_WPSN_WRPSN));
}
}
if((Banks & FLASH_BANK_1) == FLASH_BANK_1)
{
/* Wait for last operation to be completed */
status |= FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE, FLASH_BANK_1);
}
if((Banks & FLASH_BANK_2) == FLASH_BANK_2)
{
/* Wait for last operation to be completed */
status |= FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE, FLASH_BANK_2);
}
return status;
}
/**
* @brief Disable the write protection of the desired bank 1 sectors
*
* @note When the memory read protection level is selected (RDP level = 1),
* it is not possible to program or erase the flash sector if CortexM3
* debug features are connected or boot code is executed in RAM, even if nWRPi = 1
*
* @param WRPSector: specifies the sector(s) to be write protected.
* The value of this parameter depend on device used within the same series
*
* @param Banks: Enable write protection on all the sectors for the specific bank
* This parameter can be one of the following values:
* @arg FLASH_BANK_1: WRP on all sectors of bank1
*
* @retval HAL Status
*/
static HAL_StatusTypeDef FLASH_OB_DisableWRP(uint32_t WRPSector, uint32_t Banks)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the parameters */
assert_param(IS_OB_WRP_SECTOR(WRPSector));
assert_param(IS_FLASH_BANK(Banks));
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE);
if(status == HAL_OK)
{
*(__IO uint16_t*)OPTCR_BYTE2_ADDRESS |= (uint16_t)WRPSector;
}
return status;
}
