I tried two methods - my first code is as follows:FLASH_OBProgramInitTypeDef flashUserConfig = {0};flashUserConfig.OptionType = OPTIONBYTE_USER;flashUserConfig.USERType = OB_USER_IWDG_STOP;flashUserConfig.USERConfig = OB_IWDG_STOP_FREEZE;HAL_FLASHEx_...