TIM3和TIM8定时器冲突

tianhaolan

按照网上给的方法添加代码后也不对，以下为源代码：
TIM8：
void TIM8_PWM_Init(u16 per,u16 psc)
{
       
       
        GPIO_InitTypeDef GPIO_InitStructure;
        TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
        TIM_OCInitTypeDef  TIM_OCInitStructure;
         

        RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM8, ENABLE);
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC , ENABLE);  
                                                                                    
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
        GPIO_Init(GPIOC, &GPIO_InitStructure);
       
        TIM_TimeBaseStructure.TIM_Period = per;
        TIM_TimeBaseStructure.TIM_Prescaler =psc;
        TIM_TimeBaseStructure.TIM_ClockDivision = 0;
        TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  
        TIM_TimeBaseInit(TIM8, &TIM_TimeBaseStructure);


        TIM_OCInitStructure.TIM_Pulse = 0;                
        TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;  
        TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
        TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
        TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
        TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
        TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;
        TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;
        TIM_OC1Init(TIM8, &TIM_OCInitStructure);
       
        TIM_OCInitStructure.TIM_Pulse = 0;                
        TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;  
        TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
        TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
        TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
        TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
        TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;
        TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;
        TIM_OC2Init(TIM8, &TIM_OCInitStructure);
       
        TIM_OCInitStructure.TIM_Pulse = 0;                
        TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;  
        TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
        TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
        TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
        TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
        TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;
        TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;
        TIM_OC3Init(TIM8, &TIM_OCInitStructure);
       
        TIM_OCInitStructure.TIM_Pulse = 0;                
        TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;  
        TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
        TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
        TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
        TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
        TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;
        TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;
        TIM_OC4Init(TIM8, &TIM_OCInitStructure);

        TIM_OC1PreloadConfig(TIM8, TIM_OCPreload_Enable);
        TIM_OC2PreloadConfig(TIM8, TIM_OCPreload_Enable);
        TIM_OC3PreloadConfig(TIM8, TIM_OCPreload_Enable);
        TIM_OC4PreloadConfig(TIM8, TIM_OCPreload_Enable);
        TIM_ARRPreloadConfig(TIM8, ENABLE);
       
        TIM_CtrlPWMOutputs(TIM8,ENABLE);
        TIM_Cmd(TIM8, ENABLE);

  TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Disable;
  TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset ;
  TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;

}

TIM3：
void TIM3_PWM_Init(u16 arr,u16 psc)
{  
        GPIO_InitTypeDef GPIO_InitStructure;
        TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
        TIM_OCInitTypeDef  TIM_OCInitStructure;
       

        RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);        //ê1Äü¶¨ê±Æ÷3ê±Öó
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE);  //ê1ÄüGPIOCíaéèoíAFIO¸′óÃ1|ÄüÄ￡¿éê±Öó
       
        GPIO_PinRemapConfig(GPIO_PartialRemap_TIM3, ENABLE); //Timer3 è«2¿ÖØó3éä
       
        GPIO_InitStructure.GPIO_Pin=GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_4|GPIO_Pin_5;
        GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
        GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;
        GPIO_Init(GPIOB,&GPIO_InitStructure);

   //3õê¼»ˉTIM3
        TIM_TimeBaseStructure.TIM_Period = arr; //éèÖÃÔúÏÂò»¸ö¸üDÂê¼t×°èë»î¶ˉμÄ×Ô¶ˉÖØ×°ÔؼÄ′æÆ÷ÖüÆúμÄÖμ
        TIM_TimeBaseStructure.TIM_Prescaler =psc; //éèÖÃóÃà′×÷ÎaTIMxê±ÖóÆμÂê3yêyμÄÔ¤·ÖÆμÖμ
        TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //éèÖÃê±Öó·Ö¸î:TDTS = Tck_tim
        TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //TIMÏòéϼÆêyÄ￡ê½
        TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //¸ù¾YTIM_TimeBaseInitStructÖDÖ¸¶¨μÄ2Îêy3õê¼»ˉTIMxμÄê±¼ä»ùêyμ￥λ
       
        TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM2;
        TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_Low;
        TIM_OCInitStructure.TIM_Pulse=1500;  
        TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
        TIM_OC1Init(TIM3,&TIM_OCInitStructure);
       
  TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM2;
        TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_Low;
        TIM_OCInitStructure.TIM_Pulse=1500;
        TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
        TIM_OC2Init(TIM3,&TIM_OCInitStructure);
       
        TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM2;
        TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_Low;
        TIM_OCInitStructure.TIM_Pulse=1500;
        TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
        TIM_OC4Init(TIM3,&TIM_OCInitStructure);
       
        TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM2;
        TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_Low;
        TIM_OCInitStructure.TIM_Pulse=1500;
        TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
        TIM_OC3Init(TIM3,&TIM_OCInitStructure);
       
        TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable);  //ê1ÄüTIM3ÔúCCR2éÏμÄԤװÔؼÄ′æÆ÷
        TIM_OC2PreloadConfig(TIM3, TIM_OCPreload_Enable);  //ê1ÄüTIM3ÔúCCR2éÏμÄԤװÔؼÄ′æÆ÷
        TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Enable);  //ê1ÄüTIM3ÔúCCR2éÏμÄԤװÔؼÄ′æÆ÷
        TIM_OC4PreloadConfig(TIM3, TIM_OCPreload_Enable);  //ê1ÄüTIM3ÔúCCR2éÏμÄԤװÔؼÄ′æÆ÷
                               
  TIM_ARRPreloadConfig(TIM3,ENABLE);//éèÖÃAPRE=1

        TIM_Cmd(TIM3, ENABLE);  //ê1ÄüTIM3

}