【stm32f0】关于定时器进不了中断

只看该作者 · 2014-3-4 18:21

初学STM32，按照例子程序写的定时器触发中断控制LED等亮灭的程序，编译通过，但仿真只看到灯亮，没有进入中断，调了几天也没弄出来。。。希望帮帮忙看下是什么问题。。。
main.c
int main(void)
{
TIM_NVIC_Config();
LED_InitC();
LED_Open3();
TIM_Config();
  while (1)
  {
  }
}

time.c
#include "time.h"

void TIM_NVIC_Config(void)
{
  NVIC_InitTypeDef NVIC_InitStructure;
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);
  NVIC_InitStructure.NVIC_IRQChannel=TIM3_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPriority=0;
  NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
  NVIC_Init(&NVIC_InitStructure);
}

void TIM_Config(void)
{
__IO uint16_t CCR3_Val = 13654;
__IO uint16_t CCR4_Val = 6826;
uint16_t PrescalerValue = 0;

  TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
  TIM_OCInitTypeDef  TIM_OCInitStructure;

  PrescalerValue = (uint16_t) (SystemCoreClock  / 6000000) - 1;

TIM_TimeBaseStructure.TIM_Period=65535;
            TIM_TimeBaseStructure.TIM_Prescaler=0;
TIM_TimeBaseStructure.TIM_ClockDivision=0;
            TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up;
            TIM_TimeBaseInit(TIM3,&TIM_TimeBaseStructure);
            TIM_PrescalerConfig(TIM3, PrescalerValue, TIM_PSCReloadMode_Immediate);

TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_Timing;
            TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = CCR3_Val;
TIM_OC3Init(TIM3,&TIM_OCInitStructure);
TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Disable);

TIM_ITConfig(TIM3,TIM_IT_CC3,ENABLE);
TIM_Cmd(TIM3,ENABLE);
}
中断
void TIM3_IRQHandler(void)
{
  if (TIM_GetITStatus(TIM3, TIM_IT_CC3) != RESET)
  {
TIM_ClearITPendingBit(TIM3, TIM_IT_CC3);
LED3_Toggle();
capture = TIM_GetCapture3(TIM3);
TIM_SetCompare3(TIM3, capture + CCR3_Val);
  }
}

3万 · 2014-3-4 19:07

void
TIM1_Init(u32 TIM_Period)//TIM_PeriodÎª16Î»µÄÊý
{
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
/* Time base configuration */
TIM_TimeBaseStructure.TIM_Period =TIM_Period;
TIM_TimeBaseStructure.TIM_Prescaler = 0; //¶¨Ê±Æ÷Ê±ÖÓ·ÖÆµ
TIM_TimeBaseStructure.TIM_ClockDivision = 0; //²ÉÑù·ÖÆµ
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //ÏòÉÏ¼ÆÊý
TIM_TimeBaseInit(TIM11, &TIM_TimeBaseStructure);
    TIM_PrescalerConfig(TIM11, 13, TIM_PSCReloadMode_Immediate );
    TIM_ITConfig(TIM11, TIM_IT_Update, ENABLE);
    TIM_Cmd(TIM11, ENABLE);
}

    NVIC_InitTypeDef  NVIC_InitStructure;

   RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM11, ENABLE);
    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);

3万 · 2014-3-4 19:08

void TIM1_TRG_COM_TIM11_IRQHandler(void)
{
      //
      // Clear the timer interrupt.
      //
  if(TIM_GetITStatus(TIM11,TIM_IT_Update)!=RESET)
      {
}
}
参考，不过我的是M4

只看该作者 · 2014-3-4 19:31

mmuuss586 发表于 2014-3-4 19:08
void TIM1_TRG_COM_TIM11_IRQHandler(void)
{
//

嗯嗯谢谢，我的用的是STM320518—EVAL的板子，我的设置都差不多，我能把工程发给你看能进入中断么？实在是弄了很久不好意思

3万 · 2014-3-4 19:33

我手上没板子，要不然可以试下。

3万 · 2014-3-4 19:42

void TIM3_IRQHandler(void)
{
  if (TIM_GetITStatus(TIM3, TIM_IT_CC3) != RESET)
  {
TIM_ClearITPendingBit(TIM3, TIM_IT_CC3);

/* LED3 toggling with frequency = 219.7 Hz */
STM_EVAL_LEDToggle(LED3);
capture = TIM_GetCapture3(TIM3);
TIM_SetCompare3(TIM3, capture + CCR3_Val);
  }
  else
  {
TIM_ClearITPendingBit(TIM3, TIM_IT_CC4);

/* LED4 toggling with frequency = 439.4 Hz */
STM_EVAL_LEDToggle(LED4);
capture = TIM_GetCapture4(TIM3);
TIM_SetCompare4(TIM3, capture + CCR4_Val);
  }
}
看你程序和例程差不多，中断有不一样