RTC的例程复位后死循环

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LBZZYH|

楼主 | 2008-5-16 10:51 | 只看该作者回帖奖励

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RTC, se, TI, ST, CONFIG

int main(void)
{
#ifdef DEBUG
  debug();
#endif

  /* System Clocks Configuration */
  RCC_Configuration();

  /* NVIC configuration */
  NVIC_Configuration();

  /* Configure the GPIOs */
  GPIO_Configuration();

  /* Configure the USART1 */
  USART_Configuration();

  if(BKP_ReadBackupRegister(BKP_DR1) != 0xA5A5)
  {
    /* Backup data register value is not correct or not yet programmed (when
       the first time the program is executed) */

    printf(" RTC not yet configured....");

    /* RTC Configuration */
    RTC_Configuration();

     printf(" RTC configured....");

    /* Adjust time by values entred by the user on the hyperterminal */
    Time_Adjust();

    BKP_WriteBackupRegister(BKP_DR1, 0xA5A5);
  }
  else
  {
    /* Check if the Power On Reset flag is set */
    if(RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
    {
      printf(" Power On Reset occurred....");
    }
    /* Check if the Pin Reset flag is set */
    else if(RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET)
    {
      printf(" External Reset occurred....");
    }

    printf(" No need to configure RTC....");
    /* Wait for RTC registers synchronization */
    RTC_WaitForSynchro();---------------------------------->复位后在这个函数中出不来

    /* Enable the RTC Second */
    RTC_ITConfig(RTC_IT_SEC, ENABLE);
    /* Wait until last write operation on RTC registers has finished */
    RTC_WaitForLastTask();
  }

  /* Clear reset flags */
  RCC_ClearFlag();

  /* Display time in infinte loop */
  Time_Show();
}

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