STM32L053 RTC备份数据问题

1万 · 2015-6-9 18:32

本帖最后由 jt4117 于 2015-7-29 15:39 编辑

void HAL_RTCEx_BKUPWrite(RTC_HandleTypeDef *hrtc, uint32_t BackupRegister, uint32_t Data)
{
  uint32_t tmp = 0;

  /* Check the parameters */
  assert_param(IS_RTC_BKP(BackupRegister));

  tmp = (uint32_t)&(hrtc->Instance->BKP0R);
  tmp += (BackupRegister * 4);

  /* Write the specified register */
  *(__IO uint32_t *)tmp = (uint32_t)Data;
}
//-----------------------------------------------------------------------------------------------------------
uint32_t HAL_RTCEx_BKUPRead(RTC_HandleTypeDef *hrtc, uint32_t BackupRegister)
{
  uint32_t tmp = 0;

  /* Check the parameters */
  assert_param(IS_RTC_BKP(BackupRegister));

  tmp = (uint32_t)&(hrtc->Instance->BKP0R);
  tmp += (BackupRegister * 4);

  /* Read the specified register */
  return (*(__IO uint32_t *)tmp);
}