STM32F207VG TIM1 不中断怎么回事啊？

只看该作者 · 2013-6-4 18:11

STM32F207VG TIM1 不中断怎么回事啊？
波形从脚PE11进入

设置如下：

void TIM1_Configuration(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;
  NVIC_InitTypeDef NVIC_InitStructure;
  TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;

  RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOE, ENABLE);

  // TIM1 channel 2 pin (PE.11) configuration
  GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_11;          //GPIO_Pin_11;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd  = GPIO_PuPd_UP ;
  GPIO_Init(GPIOE, &GPIO_InitStructure);

  GPIO_PinAFConfig(GPIOE, GPIO_PinSource11, GPIO_AF_TIM1);//GPIO_PinSource11,

NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
NVIC_InitStructure.NVIC_IRQChannel=TIM1_TRG_COM_TIM11_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

NVIC_InitStructure.NVIC_IRQChannel=TIM1_UP_TIM10_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

  TIM_DeInit(TIM1);
  TIM_TimeBaseStructure.TIM_Prescaler=0;
  TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up;
  TIM_TimeBaseStructure.TIM_Period=0xffff;
  TIM_TimeBaseStructure.TIM_ClockDivision = 0;
  TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);

  TIM_ClearFlag(TIM1,(TIM_FLAG_Update|TIM_FLAG_Trigger));
}

只看该作者 · 2013-6-4 18:19

自已再说清楚一下：在中断设置里如果改为CCP捕捉配置，则可以产生中断。

1万 · 2013-6-5 10:25

没有开中断吧？

1万 · 2013-6-5 10:25

先使能中断才能执行的。

只看该作者 · 2013-6-5 19:19

后来设置成PA12脚外接脉冲计数也进入不了中断，但直接能读出TIM1 COUN1=TIM1->CNT 里面的值，能看到TIM1一直在计数，哪位大侠指导一下啊

怎么才能计TIM1脉冲计数产生中断呢？？

设置如下：
  NVIC_InitTypeDef NVIC_InitStructure;
   GPIO_InitTypeDef GPIO_InitStructure;
   TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;

   RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
   RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);

   NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
   NVIC_InitStructure.NVIC_IRQChannel=TIM1_TRG_COM_TIM11_IRQn;
   NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
   NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
   NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
   NVIC_Init(&NVIC_InitStructure);

   NVIC_InitStructure.NVIC_IRQChannel=TIM1_UP_TIM10_IRQn;
   NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
   NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
   NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
   NVIC_Init(&NVIC_InitStructure);

///************************************************************
   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
   GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
   GPIO_Init(GPIOA, &GPIO_InitStructure);

   GPIO_PinAFConfig(GPIOA, GPIO_PinSource12, GPIO_AF_TIM1);
   TIM_DeInit(TIM1);
   TIM_TimeBaseStructure.TIM_Period = 0xFFFF;
   TIM_TimeBaseStructure.TIM_Prescaler = 0x00;
   TIM_TimeBaseStructure.TIM_ClockDivision = 0x0;
      TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
      TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); // Time base configuration

      TIM_ETRClockMode2Config(TIM1, TIM_ExtTRGPSC_OFF, TIM_ExtTRGPolarity_NonInverted, 0);
//***************************************************************************************
   TIM_UpdateDisableConfig(TIM1, ENABLE);
   TIM_UpdateRequestConfig(TIM1, TIM_UpdateSource_Global);
   TIM_SelectInputTrigger(TIM1, TIM_TS_ETRF);//External Trigger input
   TIM_ITConfig(TIM1,TIM_IT_Trigger,ENABLE);
   TIM_SetCounter(TIM1, 0);
   TIM_ClearFlag(TIM1,(TIM_FLAG_Update|TIM_FLAG_Trigger));
   TIM_Cmd(TIM1, DISABLE);

void TIM1_UP_TIM10_IRQHandler(void)
{ //puts("11UP");
if(TIM_GetITStatus(TIM1,TIM_IT_Update)==SET)
{
  RTC_WakeUpCmd(DISABLE);
  n_Counter=T_Counter;
  T_Counter=0;
  RTC_ClearITPendingBit(RTC_IT_WUT);
  EXTI_ClearITPendingBit(EXTI_Line22);

  TIM_ClearITPendingBit(TIM1, TIM_FLAG_Update); //???
  TIM1->CR1&=0XFFFE; //¹Ø±Õ¶¨Ê±Æ÷1
  Flag=1;             //1s±êÖ¾Î»ÖÃ1
  TIM1->SR&=0XFFFE;    //ÍË³ö¶¨Ê±Æ÷1Òç³öÖÐ¶ÏÖ®Ç°,±ØÐëÇå³ý¶¨Ê±Æ÷1µÄÒç³ö±êÖ¾Î»
}
}
void TIM1_TRG_COM_TIM11_IRQHandler(void)
{ puts("11TR");
if(TIM_GetITStatus(TIM1,TIM_IT_Trigger)==SET)

  TIM1->DIER&=0XFFBF;
  TIM1->DIER|=0X0001;
  RTC_WakeUpCmd(ENABLE);
  TIM1->SR&=0XFFBF;
}
}

只看该作者 · 2013-6-6 22:02

终于可以了，是没开，想用一下 TIM1_TRG_COM_TIM11_IRQHandler 这个怎么用啊

STM32F207VG TIM1 不中断怎么回事啊？

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