I tried CRP protection for STM32H563IIK6.
But is it not working.
This is the code.
#define OB_RDP_LEVEL_0 ((uint8_t)0xAA)
#define OB_RDP_LEVEL_1 ((uint8_t)0x55)
#define OB_RDP_LEVEL_2 ((uint8_t)0xCC)
HAL_StatusTypeDef FLASH_If_WriteProtectionConfig(uint32_t modifier)
{
FLASH_OBProgramInitTypeDef OptionsBytesInit= {0};
u32 lu32_ReadValue =0;
if(modifier == OB_RDP_LEVEL_2 )
{
return 2;
}
HAL_FLASH_Unlock();
HAL_FLASH_OB_Unlock();
lu32_ReadValue = FLASH->OPTSR_PRG;
if(((lu32_ReadValue >>8) & 0xFF) == modifier )
{
return 1;
}
FLASH->OPTSR_PRG |= (modifier <<8);
//HAL_FLASHEx_OBProgram(&OptionsBytesInit);
/* Launch Option Bytes Loading */
HAL_FLASH_OB_Launch();
HAL_FLASH_OB_Lock();
HAL_FLASH_Lock();
return 0;
}
I'm calling this function with argument FLASH_If_WriteProtectionConfig(OB_RDP_LEVEL_1 )
