topic Re: S32K116 FTM input capture in S32K

S32K116 FTM input capture

hanchengyu11 — Wed, 23 Aug 2023 05:16:04 GMT

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）

Re: S32K116 FTM input capture

Robin_Shen — Wed, 23 Aug 2023 11:43:37 GMT

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
-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!

- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------

Re: S32K116 FTM input capture

hanchengyu11 — Thu, 24 Aug 2023 00:28:02 GMT

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。