求解 time4接霍尔 ch3一直为低

linyili89

/**********************************************************************
* Description   : None
* Input         : None
* Output         : None
* Return         : None
* Attention     : None
**********************************************************************/
void BLDC_GPIOConfig(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
   
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10;  //TIM1????
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;   
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
 
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15;//TIM1????
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;   
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);

// GPIO_PinRemapConfig(GPIO_Remap_SWJ_Disable , ENABLE);
 
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8;//TIM8????
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;   
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOC, &GPIO_InitStructure);

// GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;  //TIM8????
//     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;   
// GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
//     GPIO_Init(GPIOA, &GPIO_InitStructure);
//
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1;//TIM8????
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;   
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);
  /*
   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2;              //TIM3??????????
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
 */
 
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2;              //TIM2??????????
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8;               //TIM4??????????
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOB, &GPIO_InitStructure);  
     
}
/**********************************************************************
* Description   : None
* Input         : None
* Output         : None
* Return         : None
* Attention     : None
**********************************************************************/
void BLDC_TIM1Config(void)
{
   TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;   //?ù±??á????±????¨??
   TIM_OCInitTypeDef  TIM_OCInitStructure;                     //?????á????±????¨??
   TIM_BDTRInitTypeDef  TIM_BDTRInitStructure;   //?????????á????±????¨??

   TIM_DeInit(TIM1);

   TIM_TimeBaseStructure.TIM_Prescaler = 2;   //TIM?ù±???????
   TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_CenterAligned2;//????????????????
   TIM_TimeBaseStructure.TIM_Period = 1499;   //PWM 16K
   TIM_TimeBaseStructure.TIM_ClockDivision = 0;
   TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;

   TIM_TimeBaseInit(TIM1,&TIM_TimeBaseStructure);

   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;   //TIM?????¨????????
   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Disable; 
   TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Disable;                  
   TIM_OCInitStructure.TIM_Pulse =600; 
   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; 
   TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;         
   TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
   TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset;          
  
   TIM_OC1Init(TIM1,&TIM_OCInitStructure); 

   TIM_OCInitStructure.TIM_Pulse =600;
   TIM_OC2Init(TIM1,&TIM_OCInitStructure);

   TIM_OCInitStructure.TIM_Pulse =600;
   TIM_OC3Init(TIM1,&TIM_OCInitStructure);

   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;   //TIM?????¨??4??????????????·?AD×??????ù
   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Disable;                   
   TIM_OCInitStructure.TIM_Pulse =1495; 
   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;           
  
   TIM_OC4Init(TIM1,&TIM_OCInitStructure); 
 
   TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable; //??????????????
   TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable;
   TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_OFF; 
   TIM_BDTRInitStructure.TIM_DeadTime = 100;
   TIM_BDTRInitStructure.TIM_Break = TIM_Break_Disable; //???ò???????ú????????×???????????????
   TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_Low;
   TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Disable;

   TIM_BDTRConfig(TIM1,&TIM_BDTRInitStructure);

   TIM_OC1PreloadConfig(TIM1,TIM_OCPreload_Enable);  //????????±????????÷?¤×°???¨?¨??1?©

   TIM_OC2PreloadConfig(TIM1,TIM_OCPreload_Enable); //????????±????????÷?¤×°???¨?¨??2?©

   TIM_OC3PreloadConfig(TIM1,TIM_OCPreload_Enable); //????????±????????÷?¤×°???¨?¨??3?©
   
   TIM_SelectInputTrigger(TIM1, TIM_TS_ITR1);        //??????·???????TIM2   
  
   //TIM_SelectSlaveMode(TIM1, TIM_SlaveMode_Trigger);//?????????? ??·?  

   TIM_CtrlPWMOutputs(TIM1,ENABLE);

   TIM_Cmd(TIM1,ENABLE);
}
/**********************************************************************
* Description   : None
* Input         : None
* Output         : None
* Return         : None
* Attention     : None
**********************************************************************/
void BLDC_TIM8Config(void)
{
   TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;   //?ù±??á????±????¨??
   TIM_OCInitTypeDef  TIM_OCInitStructure;                     //?????á????±????¨??
   TIM_BDTRInitTypeDef  TIM_BDTRInitStructure;   //?????????á????±????¨??

   TIM_DeInit(TIM8);

   TIM_TimeBaseStructure.TIM_Prescaler = 2;   //TIM?ù±???????
   TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_CenterAligned2;//????????????????
   TIM_TimeBaseStructure.TIM_Period = 1499;   //PWM 16K
   TIM_TimeBaseStructure.TIM_ClockDivision = 0;
   TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;

   TIM_TimeBaseInit(TIM8,&TIM_TimeBaseStructure);

   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;   //TIM?????¨????????
   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Disable; 
   TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Disable;                  
   TIM_OCInitStructure.TIM_Pulse =600; 
   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; 
   TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;         
   TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
   TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset;          
  
   TIM_OC1Init(TIM8,&TIM_OCInitStructure); 

   TIM_OCInitStructure.TIM_Pulse =600;
   TIM_OC2Init(TIM8,&TIM_OCInitStructure);

   TIM_OCInitStructure.TIM_Pulse =600;
   TIM_OC3Init(TIM8,&TIM_OCInitStructure);

   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;   //TIM?????¨??4??????????????·?AD×??????ù
   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Disable;                   
   TIM_OCInitStructure.TIM_Pulse =1495; 
   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;           
  
   TIM_OC4Init(TIM8,&TIM_OCInitStructure); 
 
   TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable; //??????????????
   TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable;
   TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_OFF; 
   TIM_BDTRInitStructure.TIM_DeadTime = 100;
   TIM_BDTRInitStructure.TIM_Break = TIM_Break_Disable; //???ò???????ú????????×???????????????
   TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_Low;
   TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Disable;

   TIM_BDTRConfig(TIM8,&TIM_BDTRInitStructure);

   TIM_OC1PreloadConfig(TIM8,TIM_OCPreload_Enable);  //????????±????????÷?¤×°???¨?¨??1?©

   TIM_OC2PreloadConfig(TIM8,TIM_OCPreload_Enable); //????????±????????÷?¤×°???¨?¨??2?©

   TIM_OC3PreloadConfig(TIM8,TIM_OCPreload_Enable); //????????±????????÷?¤×°???¨?¨??3?©
   
   TIM_SelectInputTrigger(TIM8, TIM_TS_ITR2);        //??????·???????TIM4   
  
   //TIM_SelectSlaveMode(TIM1, TIM_SlaveMode_Trigger);//?????????? ??·?  

   TIM_CtrlPWMOutputs(TIM8,ENABLE);

   TIM_Cmd(TIM8,ENABLE);
}

/**********************************************************************
* Description   : None
* Input         : None
* Output         : None
* Return         : None
* Attention     : None
**********************************************************************/
void BLDC_TIM4Config(void)
{
   TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;   //?ù±??á????±????¨??
   TIM_ICInitTypeDef TIM_ICInitStructure;                      //?¨???á????±???
   TIM_OCInitTypeDef  TIM_OCInitStructure;                     //?????á????±????¨??
      
   TIM_DeInit(TIM4);

   TIM_TimeBaseStructure.TIM_Prescaler = 71;   //TIM?ù±???????
   TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
   TIM_TimeBaseStructure.TIM_Period =65535;
   TIM_TimeBaseStructure.TIM_ClockDivision = 0;
   TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;

   TIM_TimeBaseInit(TIM4,&TIM_TimeBaseStructure);     
      
   TIM_ICInitStructure.TIM_Channel = TIM_Channel_1;            //?????¨??1
   TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising; //??????????????  
   TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_TRC;  //?????¨??????????????????????
   TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;       //?????????¤·?????
   TIM_ICInitStructure.TIM_ICFilter = 10;                      //???????¨?÷???í?è??

   TIM_ICInit(TIM4, &TIM_ICInitStructure);                     //?????¨??????

   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;    //TIM?????¨????????
   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;             
   TIM_OCInitStructure.TIM_Pulse =1023; 
   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;      
  
   TIM_OC2Init(TIM4,&TIM_OCInitStructure);

   TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Timing;    //TIM?????¨????????
   TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Disable;             
   TIM_OCInitStructure.TIM_Pulse =65535; 
   TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;      
  
   TIM_OC4Init(TIM4,&TIM_OCInitStructure);

   TIM_SelectHallSensor(TIM4,ENABLE);                          //????TIMx???????????÷????
   
   TIM_SelectInputTrigger(TIM4, TIM_TS_TI1F_ED);               //??????·???????   
  
   TIM_SelectSlaveMode(TIM4, TIM_SlaveMode_Reset);             //??????????

   TIM_SelectMasterSlaveMode(TIM4, TIM_MasterSlaveMode_Enable);//?÷??????????        
   
   TIM_SelectOutputTrigger(TIM4, TIM_TRGOSource_OC2Ref);      //??????????·?????(TRGO??)

   TIM_ITConfig(TIM4, TIM_IT_Trigger|TIM_IT_CC4, ENABLE);      //???¨?±?÷???? 
   //TIM_Cmd(TIM3,ENABLE);
}
以上是我的初始化程序，通过实验 timer1输出pwm与timer2接霍尔的一组无刷电机可以正常转，而timer8和timer4的不行，

 irq_zhuanzi1=(u8)(GPIOB->IDR&0x01C0)>>6; //??×?×?????


    switch(irq_zhuanzi1) //?ù??×?×??????????¨CCER?????à????×?×?×???????
    {
 case 0x06:{                      
 case 0x03:{
   TIM8->CCER=0x3180;//3??6 CB
   };break;
 case 0x02:{
 TIM8->CCER=0x3081; //AB             
           };break;
   case 0x06:{
 TIM8->CCER=0x3801;    //AC
   };break;
 case 0x04:{
 TIM8->CCER=0x3810;          
           };break;
 case 0x05:{
 TIM8->CCER=0x3018;          
           };break;
 case 0x01:{              
 TIM8->CCER=0x3108;          
           };break;
 default:break;  

    }  
  }
一上电， CB就有输出，对应case6. ch3为低，用万用表测外部PB8,是高电平