使用了定时器同步触发采用pwm输出比较模式，但却始终无法进入中断，占空比始终为50%，希望原子哥和广大吧友能够帮忙找出问题在哪

samk

#include "timer.h"
#include "stm32f10x.h"

extern u16 ccr1;


void TIM3_IRQHandler(void)   //TIM3ÖD¶Ï
{
        if (TIM_GetITStatus(TIM3, TIM_IT_CC1) != RESET) //¼ì2éÖ¸¶¨μÄTIMÖD¶Ï·￠éúóë·ñ:TIM ÖD¶ÏÔ′
                {
                TIM_ClearITPendingBit(TIM3, TIM_IT_CC1  );  //Çå3yTIMxμÄÖD¶Ï′y′|àíλ:TIM ÖD¶ÏÔ′
                        if(ccr1==150-1)
                        {
                                ccr1=50-1;
                                TIM_SetCompare1(TIM3,ccr1);
                        }
                        else if(ccr1==50-1)
                        {
                                ccr1=150-1;
                                TIM_SetCompare1(TIM3,ccr1);
                        }
                }
        }

void TIM13_Configuration(void)
{
        TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
        TIM_OCInitTypeDef  TIM_OCInitStructure;
       
       
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 , ENABLE);

  /* TIM3 and TIM4 clock enable */
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
       
        TIM_TimeBaseStructure.TIM_Period = 255;
  TIM_TimeBaseStructure.TIM_Prescaler =0;
  TIM_TimeBaseStructure.TIM_ClockDivision = 0;
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;

  TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
       
        GPIO_PinRemapConfig(GPIO_FullRemap_TIM3, ENABLE);
  TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle;
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
        TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
  TIM_OCInitStructure.TIM_Pulse = 50-1;
       
       
        TIM_ClearFlag(TIM3, TIM_FLAG_CC1);
  TIM_ITConfig(TIM3,TIM_IT_CC1,ENABLE);//ÖD¶Ïê1Äü
       

  TIM_OC1Init(TIM3, &TIM_OCInitStructure);
        TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Disable);
       
       
         

  /* Slave Mode selection: TIM3 */
  TIM_SelectSlaveMode(TIM3, TIM_SlaveMode_Trigger);
  TIM_SelectInputTrigger(TIM3, TIM_TS_ITR0);
       
       
        TIM_TimeBaseStructure.TIM_Prescaler = 0;
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
  TIM_TimeBaseStructure.TIM_Period = 255;
  TIM_TimeBaseStructure.TIM_ClockDivision = 0;
  TIM_TimeBaseStructure.TIM_RepetitionCounter = 4;

  TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);

  /* Channel 1 Configuration in PWM mode */
  TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
  TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
  TIM_OCInitStructure.TIM_Pulse = 127;
       
        TIM_OC1Init(TIM1, &TIM_OCInitStructure);
       
        GPIO_PinRemapConfig(GPIO_FullRemap_TIM1, ENABLE);
       
       
        TIM_SelectOutputTrigger(TIM1, TIM_TRGOSource_Update);

  /* Select the Master Slave Mode */
  TIM_SelectMasterSlaveMode(TIM1, TIM_MasterSlaveMode_Enable);

  /* TIM1 counter enable */
  TIM_Cmd(TIM1, ENABLE);

  /* TIM enable counter */
  TIM_Cmd(TIM3, ENABLE);


  /* Main Output Enable */
  TIM_CtrlPWMOutputs(TIM1, ENABLE);




}

void GPIO_Configuration(void)
{
       
        GPIO_InitTypeDef GPIO_InitStructure;
       
        RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOE |RCC_APB2Periph_GPIOC | RCC_APB2Periph_AFIO, ENABLE);
       
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_8;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOE, &GPIO_InitStructure);
       
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
}

void NVIC_Configuration(void)
{
        NVIC_InitTypeDef NVIC_InitStructure;
        NVIC_InitStructure.NVIC_IRQChannel=TIM3_IRQn;//ê1ÄüÖD¶Ï
       
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority=1;
        NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
        NVIC_Init(&NVIC_InitStructure);

}

       
       

正点原子

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includeDami

TIM1和TIM2或者TIM3的同步设置怎么设置的，TIM1做主，TIM2或者TIM3做从，求配置过程，谢谢了

Time_Zero

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