用STM8S003进入TIM4中断后不能对UIF清0....

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action99|

楼主 | 2015-11-3 14:06 | 只看该作者 |只看大图回帖奖励

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TI, STM8S003, ui, TE, ni

本帖最后由 action99 于 2015-11-3 14:13 编辑

用STM8S003进入TIM4中断后不能对UIF清0，死循环在TIM4中断里面，请高手来解决。。谢谢。
void TIM4_Configuration(void)
{
  /*
TIM4_TimeBaseInit(TIM4_PRESCALER_128 ,200); //煦128 RES=200
TIM4_ARRPreloadConfig(ENABLE);       //赻雄蚾婥妏夔
TIM4_PrescalerConfig(TIM4_PRESCALER_128,TIM4_PSCRELOADMODE_IMMEDIATE);
TIM4_SetAutoreload(200);
TIM4_Cmd(ENABLE); //數杅妏夔
TIM4_ITConfig(TIM4_IT_UPDATE,ENABLE); //笢剿羲宎
  */

  TIM4->IER=0x00;//輦砦笢剿
  TIM4->EGR=0X01;//埰勍奀夔載陔岈璃
  TIM4->PSCR=0x07;// 數杅奀笘=翋奀笘/128=16MHZ/128=125KHZ=8us
  TIM4->ARR=51;//赻雄蚾婥硉˙隅奀笚=8us*51=408us
  TIM4->CNTR=51;//數杅場硉
  TIM4->CR1=0x01;//奀夔數杅

}

INTERRUPT_HANDLER(TIM4_UPD_OVF_IRQHandler, 23) //隅奀21.2US
{
  /* In order to detect unexpected events during development,
   it is recommended to set a breakpoint on the following instruction.
  */

   //TimingDelay_Decrement();
   TIM4_ClearITPendingBit(TIM4_IT_UPDATE);
   TIM4->SR1 &=0xfe;

}

int main(void)
{

      /* 扢离俋窒16M儒淥峈炵苀翋奀笘 */
      SystemClock_Init(HSE_Clock);
      Key_Init();
      LED_Init();

      Tim1_Init();    //PC1~4岆PWM 怀堤

      TIM4_Configuration();

      enableInterrupts();       /* 羲軞笢剿 */

      while (1)
      {

         Operation();

      }
}

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