S32G中的主题 Re: PWM capture in S32G linux bsp

PWM capture in S32G linux bsp

xiaochun — Tue, 09 May 2023 09:30:13 GMT

Hello NXP,

These days I try to use PWM capture function of S32G3. PWM output is OK. But PWM capture doesn't work.

root@ubuntu-s32g399ardb3:/sys/devices/platform/soc/402e4000.pwm/pwm/pwmchip6/pwm0# cat capture
cat: capture: Function not implemented

So, How can I use pwm capture in linux application? thanks!

Re: PWM capture in S32G linux bsp

Daniel-Aguirre — Tue, 09 May 2023 22:22:06 GMT

Hi,

Can you let us know which BSP version are you using?

Please, let us know.

Re: PWM capture in S32G linux bsp

xiaochun — Tue, 09 May 2023 23:13:24 GMT

Hello Daniel-Aguirre,

The used BSP version is Linux BSP 33.0.

Thanks!

Re: PWM capture in S32G linux bsp

Daniel-Aguirre — Wed, 10 May 2023 19:28:05 GMT

Hi,

Thanks for your feedback.

It may seem that the driver being used might not have the capture function integrated into it.

Let us confirm this situation with our internal team.

Please, let us know.

Re: PWM capture in S32G linux bsp

Daniel-Aguirre — Wed, 24 May 2023 20:51:21 GMT

We do apologize for the delay.

We have the following update from our internal team:

"The PWM capture feature is not supported at this moment. I also didn't find any plan to implement this feature in S32G software offering schedule.

However, the S32G FlexTimer(FTM) support pin input capture (on rising edges, falling edges or both edges), customers could implement this feature through their own code."

Please, let us know.