如题，谢谢！

我现在的程序如下，进入halt后就是不能唤醒。
CLK_LSICmd(ENABLE);
  /* Enable RTC clock */
  CLK_RTCClockConfig(CLK_RTCCLKSource_LSE, CLK_RTCCLKDiv_1);
  /* Wait for LSE clock to be ready */
  while (CLK_GetFlagStatus(CLK_FLAG_LSERDY) == RESET);
  /* wait for 1 second for the LSE Stabilisation */
  LSE_StabTime();
  CLK_PeripheralClockConfig(CLK_Peripheral_RTC, ENABLE);

  /* Configures the RTC wakeup timer_step = RTCCLK/16 = LSE/16 = 488.28125 us */
  RTC_WakeUpClockConfig(RTC_WakeUpClock_RTCCLK_Div16);

  /* Enable wake up unit Interrupt */
  RTC_ITConfig(RTC_IT_WUT, ENABLE);

  /* Enable general Interrupt*/


         /* RTC wake-up event every 500 ms (timer_step x (1023 + 1) )*/
  RTC_SetWakeUpCounter(23);
  RTC_WakeUpCmd(ENABLE);
        enableInterrupts(); //使能中断
        _asm("halt");
        _asm("nop");
        _asm("nop");
        _asm("nop"); 此帖出自小平头技术问答