使用K64 配置input capture ，没有输入波形不断进入中断

魅影迷踪

使用K64 配置input capture ，没有输入波形不断进入中断。是什么原因啊。
下函数加入了参数的实际赋值
FTM_DRV_SetupChnInputCapture(BOARD_FTM_INSTANCE1= 1,ftm_ic_mode=1,BOARD_FTM_CHANNEL0=0,0);



void FTM_DRV_SetupChnInputCapture(uint32_t instance, ftm_input_capture_edge_mode_t captureMode,
                                            uint8_t channel, uint8_t filterVal)
{
    assert(instance < HW_FTM_INSTANCE_COUNT);
    assert(channel < FSL_FEATURE_FTM_CHANNEL_COUNTn(instance));

                uint32_t ftmBaseAddr = g_ftmBaseAddr[instance];
    uint32_t chnlPairnum = FTM_HAL_GetChnPairIndex(channel);

    FTM_HAL_SetClockSource(ftmBaseAddr, kClock_source_FTM_None);

    FTM_HAL_SetCounterInitVal(ftmBaseAddr,0);
    FTM_HAL_SetMod(ftmBaseAddr, 0xFFFF);
    FTM_HAL_SetCpwms(ftmBaseAddr, 0);
    FTM_HAL_SetDualChnCombineCmd(ftmBaseAddr, chnlPairnum, false);
    FTM_HAL_SetDualEdgeCaptureCmd(ftmBaseAddr, chnlPairnum, false);
    FTM_HAL_SetChnEdgeLevel(ftmBaseAddr, channel, captureMode);

    if (channel < CHAN4_IDX)
    {
        FTM_HAL_SetChnInputCaptureFilter(ftmBaseAddr, channel, filterVal);
    }

    FTM_HAL_SetChnMSnBAMode(ftmBaseAddr, channel, 0);
                FTM_DRV_SetTimeOverflowIntCmd(instance, true);
    /* Set clock source to start the counter */
    FTM_HAL_SetClockSource(ftmBaseAddr, kClock_source_FTM_SystemClk);
}



中断函数加1

void FTM1_IRQHandler(void)
{
                int_number++;
    FTM_DRV_IRQHandler(1U);
}


打印值
int_number =496690
int_number =496863
int_number =497035
int_number =497208
int_number =497381
int_number =497554
int_number =497727
int_number =497900
int_number =498073
int_number =498246
int_number =498419
int_number =498592
int_number =498765
int_number =498938
int_number =499111
int_number =499284
int_number =499457
int_number =499630
int_number =499803
int_number =499976
int_number =500149
int_number =500322
int_number =500495

阅读全文

FSL_TICS_ZP

建议你可以设置断点，查看一下引起中断的标志位是哪一个？

anger0925

配置好输入脚，估计有毛刺什么都会引起中断的。

魅影迷踪

哪这么脆弱，有filter的，不开启时filter为3个个时钟