求助！！STM32L151中的RTC唤醒（wake up）中断问题

只看该作者 · 2013-2-27 13:54

各位大大，我最近在做STM32L151时出现了一个问题，就是RTC唤醒（wake up）中断不会中断啊，不知道为什么。下面是我的部分程序：

  void RTC_Configuration(void)
{
/* Enable PWR and BKP clock */
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
  /* Allow access to BKP Domain */
  PWR_RTCAccessCmd(ENABLE);


/* Enable the LSE OSC */
  RCC_LSEConfig(RCC_LSE_ON);

  /* Wait till LSE is ready */
  while(RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
  {
  }

  /* Select the RTC Clock Source */
  RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
/* Enable the RTC Clock */
  RCC_RTCCLKCmd(ENABLE);
  /* Wait for RTC APB registers synchronisation */
  RTC_WaitForSynchro();

  RTC_InitStructure.RTC_AsynchPrediv = 0x06;
  RTC_InitStructure.RTC_SynchPrediv  = 0x66;
  RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
  RTC_Init(&RTC_InitStructure);

/* Configure the RTC WakeUp Clock source: CK_SPRE (1Hz) */
  RTC_WakeUpClockConfig(RTC_WakeUpClock_CK_SPRE_16bits);
  RTC_SetWakeUpCounter(0x0);
/* Enable the RTC Wakeup Interrupt */
  RTC_ITConfig(RTC_IT_WUT, ENABLE);
/* Enable Wakeup Counter */
  RTC_WakeUpCmd(ENABLE);

}

  void NVIC_Configuration(void)
{
  NVIC_InitTypeDef NVIC_InitStructure;
// Set the Vector Table base location at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);

// 1 bits for Preemption Priority and 3 bits for Sub Priority */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);

NVIC_InitStructure.NVIC_IRQChannel = RTC_WKUP_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

时钟用的是LSE，就是外部低速晶振（32.768K）的

一直不能产生中断，各位大大，帮我看看是怎么回事吧，小弟在此谢过了...