STM32低功耗模式简介

/*按钮GPIOB9进入睡眠，WKUP pin(GPIOA0)唤醒，GPIOD3-LED 200ms闪烁*/
int main(void)
{
  /* System Clocks Configuration **********************************************/
  RCC_Configuration();
 

  GPIO_Configuration();

   /* Enable PWR and BKP clock */
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);

  /* Enable WKUP pin */
  PWR_WakeUpPinCmd(ENABLE);

  /* Allow access to BKP Domain */
  PWR_BackupAccessCmd(ENABLE);

  //RTC_Configuration();

  EXTI_Configuration();

  NVIC_Configuration();

  SysTick_Config(SystemFrequency / 1000 *200 );    //200ms

  while (1)
  {
  
    Delay(0xAFFFF);

  }
}