STM32F103VBT6 输入捕捉进不了中断

lazy_pig

在战舰板的输入捕捉例程上修改，用的是PE13

改的也就是几个通道值，其他没有啥变化，就是进不了捕捉中断，烦请大侠们指点迷津，万分感谢。

[mw_shl_code=c,true]/************************************************************************************ **?? ?? ??: TIM1_CC_Config( void ) **?? ??: TIM1?????? **????????: ?? **????????: ?? ************************************************************************************/ void TIM1_CC_Config( u16 arr,u16 psc ) { GPIO_InitTypeDef GPIO_InitStructure; TIM_ICInitTypeDef TIM1_ICInitStructure; TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; NVIC_InitTypeDef NVIC_InitStructure; RCC_APB1PeriphClockCmd( RCC_APB2Periph_TIM1, ENABLE ); //????TIM1?±?? RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOE, ENABLE ); //????GPIOE?±?? GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13; //PE13 ?????®?°?è?? GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //GPIO_Mode_IPD; //PE13 ???? GPIO_Init( GPIOE, &GPIO_InitStructure ); GPIO_ResetBits( GPIOE,GPIO_Pin_13 ); //PE13???? //???????¨?±?÷1 TIM1 TIM_TimeBaseStructure.TIM_Period = arr; //?è?¨?????÷×?????×°?? TIM_TimeBaseStructure.TIM_Prescaler =psc; //?¤·????÷ TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //?è???±??·???:TDTS = Tck_tim TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM?ò?????????? TIM_TimeBaseInit( TIM1, &TIM_TimeBaseStructure ); //?ù??TIM_TimeBaseInitStruct?????¨????????????TIMx???±???ù?????? //??????TIM1???????????? TIM1_ICInitStructure.TIM_Channel = TIM_Channel_3; //CC1S=01 ?????????? IC1??????TI1?? TIM1_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising; //?????????? TIM1_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI; //??????TI1?? TIM1_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1; //????????·???,??·??? TIM1_ICInitStructure.TIM_ICFilter = 0x00; //IC1F=0000 ???????????¨?÷ ?????¨ TIM_ICInit( TIM1, &TIM1_ICInitStructure ); //????·?×é?????? NVIC_InitStructure.NVIC_IRQChannel = TIM1_CC_IRQn; //TIM3???? NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2; //??????????2?? NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //????????0?? NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ?¨??±????? NVIC_Init( &NVIC_InitStructure ); //?ù??NVIC_InitStruct?????¨???????????????èNVIC?????÷ TIM_ITConfig( TIM1,TIM_IT_Update | TIM_IT_CC3,ENABLE );//???í?ü?????? ,???íCC1IE???????? TIM_Cmd( TIM1,ENABLE ); //?????¨?±?÷5 } /************************************************************************************ **?? ?? ??: TIM1_CC_IRQHandler( void ) **?? ??: TIM1????·??????? **????????: ?? **????????: ?? ************************************************************************************/ u8 TIM1CH1_CAPTURE_STA = 0; //????????×??? u16 TIM1CH1_CAPTURE_VAL; //?????????? //?¨?±?÷5????·??????ò void TIM1_CC_IRQHandler( void ) { LED3_OFF( ); if(( TIM1CH1_CAPTURE_STA & 0x80 ) == 0 )//???????????? { if( TIM_GetITStatus( TIM1, TIM_IT_Update ) != RESET ) { if( TIM1CH1_CAPTURE_STA & 0X40 )//?????????????????? { if(( TIM1CH1_CAPTURE_STA & 0x3F ) == 0x3F )//?????????¤?? { TIM1CH1_CAPTURE_STA |= 0x80;//±ê???????????????? TIM1CH1_CAPTURE_VAL = 0xFFFF; } else { TIM1CH1_CAPTURE_STA++; } } } if( TIM_GetITStatus( TIM1, TIM_IT_CC1 ) != RESET )//????1·??ú???????? { if( TIM1CH1_CAPTURE_STA & 0x40 ) //???????????????? { TIM1CH1_CAPTURE_STA |= 0x80; //±ê?????????????????????? TIM1CH1_CAPTURE_VAL = TIM_GetCapture1( TIM1 ); TIM_OC1PolarityConfig( TIM1,TIM_ICPolarity_Rising ); //CC1P=0 ?è?????????????? } else //????????,???????????????? { TIM1CH1_CAPTURE_STA = 0; //???? TIM1CH1_CAPTURE_VAL = 0; TIM_SetCounter( TIM1,0 ); TIM1CH1_CAPTURE_STA |= 0x40; //±ê???????????????? TIM_OC1PolarityConfig( TIM1,TIM_ICPolarity_Falling ); //CC1P=1 ?è?????????????? } } } TIM_ClearITPendingBit( TIM1, TIM_IT_CC3 | TIM_IT_Update ); //????????±ê???? LED3在开始点亮了，想进入中断把LED3熄灭，可是一直亮着。郁闷ing[/mw_shl_code]

正点原子

 参考下这个：http://www.openedv.com/posts/list/7606.htm