S32K116 FTM input capture

[hanchengyu11]

I set FTM0_CH4 for input capture（Capture on Rising Edge Only）.After ftm initialization is complete, an interrupt occurs，But there is no input change on the FTM0_CH4 pin。（This pin has to do 5v pull-up）

[Robin_Shen]

Hi 

Which interrupt occurs after ftm initialization is complete? Did you check the flags? 
47.7.1 Timer Overflow Interrupt
The timer overflow interrupt is generated when (TOIE = 1) and (TOF = 1).
47.7.3 Channel (n) Interrupt
The channel (n) interrupt is generated when (CHIE = 1) and (CHF = 1).

Are you testing the code of 3.5. Single-edge capture mode of AN5303 AN5303SW? Or test the examples in the S32K1 SDK?

Best Regards,
Robin
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[hanchengyu11]

I use 47.7.3 Channel (n) Interrupt ,and the CHF flag is set.

I've used  the examples in the S32K1 SDK, the phenomenon is the same。