flash_unlock_acr allows to unlock RUN_PD bit from FLASH_ACR register. Relock is done automatically when writing 0 to RUN_PD, so no flash_lock_acr method.
flash_unlock_acr allows to unlock RUN_PD bit from FLASH_ACR register. Relock is done automatically when writing 0 to RUN_PD, so no flash_lock_acr method.