关于输入捕获定时器中断问题

AAAING

我使用的是战舰的板子，开启定时器4的全部通道进行输入捕获，运行过程中除了通道4以外，其他通道在未接输入的情况下频繁中断，如下图：

串口返回的值

初始化程序和中断程序如下：
TIM_ICInitTypeDef  TIM4_ICInitStructure;
void TIM4_Cap_Init(int arr,int psc)
{  
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
    NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

GPIO_InitStructure.GPIO_Pin  = GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_ResetBits(GPIOB,GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9);     


TIM_TimeBaseStructure.TIM_Period = arr;
TIM_TimeBaseStructure.TIM_Prescaler =psc;  
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure);
  

TIM4_ICInitStructure.TIM_Channel = TIM_Channel_4|TIM_Channel_1|TIM_Channel_2|TIM_Channel_3;
   TIM4_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising;
   TIM4_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI;
   TIM4_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;
   TIM4_ICInitStructure.TIM_ICFilter = 0x00;
   TIM_ICInit(TIM4, &TIM4_ICInitStructure);

//ÖжϷÖ×é³õʼ»¯
NVIC_InitStructure.NVIC_IRQChannel = TIM4_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;  
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;  
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

TIM_ITConfig(TIM4,TIM_IT_Update|TIM_IT_CC1|TIM_IT_CC2|TIM_IT_CC3|TIM_IT_CC4,ENABLE)；

    TIM_Cmd(TIM4,ENABLE );  
   
}
int  TIM4CH1_CAPTURE_STA=0;      
int TIM4CH1_CAPTURE_VAL;
int TIM4CH1_CAPTURE_VAL_LAST;
int  TIM4CH2_CAPTURE_STA=0;   
int TIM4CH2_CAPTURE_VAL;
int TIM4CH2_CAPTURE_VAL_LAST;
int  TIM4CH3_CAPTURE_STA=0;  
int TIM4CH3_CAPTURE_VAL;
int TIM4CH3_CAPTURE_VAL_LAST;
int  TIM4CH4_CAPTURE_STA=0;   
int TIM4CH4_CAPTURE_VAL;
int TIM4CH4_CAPTURE_VAL_LAST;


void TIM4_IRQHandler(void)
{
//CH1
if((TIM4CH1_CAPTURE_STA&0X80)==0)
{   
  if (TIM_GetITStatus(TIM4, TIM_IT_Update) != RESET)
   
  {     
   if(TIM4CH1_CAPTURE_STA&0X40)
   {
    if((TIM4CH1_CAPTURE_STA&0X3F)==0X3F)
    {
     TIM4CH1_CAPTURE_STA|=0X80;
     TIM4CH1_CAPTURE_VAL=0XFFFF;
    }else TIM4CH1_CAPTURE_STA++;
   }  
  }
if (TIM_GetITStatus(TIM4, TIM_IT_CC1) != RESET)
  {
   if(TIM4CH1_CAPTURE_STA&0X40)
   {      
    TIM4CH1_CAPTURE_STA|=0X80;
    TIM4CH1_CAPTURE_VAL=TIM_GetCapture1(TIM4);
    if(TIM4CH1_CAPTURE_VAL<=TIM4CH1_CAPTURE_VAL_LAST)
    {
     TIM4CH1_CAPTURE_VAL=TIM4CH1_CAPTURE_VAL+65536-TIM4CH1_CAPTURE_VAL_LAST;
     TIM4CH1_CAPTURE_STA--;
    }
    else TIM4CH1_CAPTURE_VAL-=TIM4CH1_CAPTURE_VAL_LAST;
       TIM_OC1PolarityConfig(TIM4,TIM_ICPolarity_Rising);
   }else     
   {
    TIM4CH1_CAPTURE_VAL_LAST=TIM4CH1_CAPTURE_VAL;
    TIM4CH1_CAPTURE_STA=0;
    TIM4CH1_CAPTURE_VAL=0;
    TIM4CH1_CAPTURE_STA|=0X40;
       TIM_OC1PolarityConfig(TIM4,TIM_ICPolarity_Falling);
   }      
  }                     
  }
//CH2
if((TIM4CH2_CAPTURE_STA&0X80)==0)
{   
  if (TIM_GetITStatus(TIM4, TIM_IT_Update) != RESET)
   
  {     
   if(TIM4CH2_CAPTURE_STA&0X40)
   {
    if((TIM4CH2_CAPTURE_STA&0X3F)==0X3F)
    {
     TIM4CH2_CAPTURE_STA|=0X80;
     TIM4CH2_CAPTURE_VAL=0XFFFF;
    }else TIM4CH2_CAPTURE_STA++;
   }  
  }
if (TIM_GetITStatus(TIM4, TIM_IT_CC2) != RESET)
  {
   if(TIM4CH2_CAPTURE_STA&0X40)
   {      
    TIM4CH2_CAPTURE_STA|=0X80;
    TIM4CH2_CAPTURE_VAL=TIM_GetCapture2(TIM4);
    if(TIM4CH2_CAPTURE_VAL<=TIM4CH2_CAPTURE_VAL_LAST)
    {
     TIM4CH2_CAPTURE_VAL=TIM4CH2_CAPTURE_VAL+65536-TIM4CH2_CAPTURE_VAL_LAST;
     TIM4CH2_CAPTURE_STA--;
    }
    else TIM4CH2_CAPTURE_VAL-=TIM4CH2_CAPTURE_VAL_LAST;
       TIM_OC2PolarityConfig(TIM4,TIM_ICPolarity_Rising);
   }else        
   {
    TIM4CH2_CAPTURE_VAL_LAST=TIM4CH2_CAPTURE_VAL;
    TIM4CH2_CAPTURE_STA=0;
    TIM4CH2_CAPTURE_VAL=0;
    TIM4CH2_CAPTURE_STA|=0X40;
       TIM_OC2PolarityConfig(TIM4,TIM_ICPolarity_Falling);
   }      
  }                     
  }
//CH3
if((TIM4CH3_CAPTURE_STA&0X80)==0)
{   
  if (TIM_GetITStatus(TIM4, TIM_IT_Update) != RESET)
   
  {     
   if(TIM4CH3_CAPTURE_STA&0X40)
   {
    if((TIM4CH3_CAPTURE_STA&0X3F)==0X3F)
    {
     TIM4CH3_CAPTURE_STA|=0X80;
     TIM4CH3_CAPTURE_VAL=0XFFFF;
    }else TIM4CH3_CAPTURE_STA++;
   }  
  }
if (TIM_GetITStatus(TIM4, TIM_IT_CC3) != RESET)
  {
   if(TIM4CH3_CAPTURE_STA&0X40)
   {      
    TIM4CH3_CAPTURE_STA|=0X80;
    TIM4CH3_CAPTURE_VAL=TIM_GetCapture3(TIM4);
     if(TIM4CH3_CAPTURE_VAL<=TIM4CH3_CAPTURE_VAL_LAST)
    {
     TIM4CH3_CAPTURE_VAL=TIM4CH3_CAPTURE_VAL+65536-TIM4CH3_CAPTURE_VAL_LAST;
     TIM4CH3_CAPTURE_STA--;
    }
    else TIM4CH3_CAPTURE_VAL-=TIM4CH3_CAPTURE_VAL_LAST;
       TIM_OC3PolarityConfig(TIM4,TIM_ICPolarity_Rising);
   }else      
   {
    TIM4CH3_CAPTURE_VAL_LAST=TIM4CH3_CAPTURE_VAL;
    TIM4CH3_CAPTURE_STA=0;
    TIM4CH3_CAPTURE_VAL=0;
    TIM4CH3_CAPTURE_STA|=0X40;
       TIM_OC3PolarityConfig(TIM4,TIM_ICPolarity_Falling);
   }      
  }                     
  }
//CH4
  if((TIM4CH4_CAPTURE_STA&0X80)==0)
{   
  if (TIM_GetITStatus(TIM4, TIM_IT_Update) != RESET)
   
  {     
   if(TIM4CH4_CAPTURE_STA&0X40)
   {
    if((TIM4CH4_CAPTURE_STA&0X3F)==0X3F)
    {
     TIM4CH4_CAPTURE_STA|=0X80;
     TIM4CH4_CAPTURE_VAL=0XFFFF;
    }else TIM4CH4_CAPTURE_STA++;
   }  
  }
if (TIM_GetITStatus(TIM4, TIM_IT_CC4) != RESET)
  {
   if(TIM4CH4_CAPTURE_STA&0X40)
   {      
    TIM4CH4_CAPTURE_STA|=0X80;
    TIM4CH4_CAPTURE_VAL=TIM_GetCapture4(TIM4);
    if(TIM4CH4_CAPTURE_VAL<=TIM4CH4_CAPTURE_VAL_LAST)
    {
     TIM4CH4_CAPTURE_VAL=TIM4CH4_CAPTURE_VAL+65536-TIM4CH4_CAPTURE_VAL_LAST;
     TIM4CH4_CAPTURE_STA--;
    }
    else TIM4CH4_CAPTURE_VAL-=TIM4CH4_CAPTURE_VAL_LAST;
       TIM_OC4PolarityConfig(TIM4,TIM_ICPolarity_Rising);
   }else
   {
    TIM4CH4_CAPTURE_VAL_LAST=TIM4CH4_CAPTURE_VAL;
    TIM4CH4_CAPTURE_STA=0;
    TIM4CH4_CAPTURE_VAL=0;
    TIM4CH4_CAPTURE_STA|=0X40;
       TIM_OC4PolarityConfig(TIM4,TIM_ICPolarity_Falling);
   }      
  }                     
  }

    TIM_ClearITPendingBit(TIM4, TIM_IT_Update|TIM_IT_CC1|TIM_IT_CC2|TIM_IT_CC3|TIM_IT_CC4);
}

请诸位大神帮帮忙

AAAING

已经解决了，不烦劳各位大神了。

TIM4_ICInitStructure.TIM_Channel = TIM_Channel_4|TIM_Channel_1|TIM_Channel_2|TIM_Channel_3;
   TIM4_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising;
   TIM4_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI;
   TIM4_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;
   TIM4_ICInitStructure.TIM_ICFilter = 0x00;
   TIM_ICInit(TIM4, &TIM4_ICInitStructure);

TIM4_ICInitStructure.TIM_Channel = TIM_Channel_4|TIM_Channel_1|TIM_Channel_2|TIM_Channel_3;

这一行有问题，不能用或的方式，应该逐个传递通道地址，如下：

TIM4_ICInitStructure.TIM_Channel = TIM_Channel_1;

   TIM4_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising;

   TIM4_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI;

   TIM4_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;

   TIM4_ICInitStructure.TIM_ICFilter = 0x00;

   TIM_ICInit(TIM4, &TIM4_ICInitStructure);

TIM4_ICInitStructure.TIM_Channel = TIM_Channel_2;

TIM_ICInit(TIM4, &TIM4_ICInitStructure);

TIM4_ICInitStructure.TIM_Channel = TIM_Channel_3;

TIM_ICInit(TIM4, &TIM4_ICInitStructure);

TIM4_ICInitStructure.TIM_Channel = TIM_Channel_4;

TIM_ICInit(TIM4, &TIM4_ICInitStructure);

虽然不知道为什么，可能通道地址位数冲突

mhsdsa

如何解决，谢谢分享