topic Re: IMX8QM SDK2.9 PWM driver missing in i.MX Processors

IMX8QM SDK2.9 PWM driver missing

AhmedMobarez — Fri, 09 Sep 2022 07:10:43 GMT

Hello everyone,

I just started using IMX8 QuadMax, going through the reference manual I can see that there are multiple ways to generate PWM, which are:

- TPM module : fsl_tpm.c , fsl_tpm.h

- FTM module : fsl_ftm.c, fsl_ftm.h

- PWM module : No driver available

In the latest available SDK2.9 there is no "fsl_pwm.c/.h" drivers available, is there something I am missing ?

please let me know if this driver is available or not, I know it should be there as it is mentioned in the datasheet and also the online SDK https://mcuxpresso.nxp.com/api_doc/dev/1523/a00063.html

I would like to use the PWM module rather than the other ones as I have more PWM pins available on the board I am using.

Thank you

Dhruvit — Mon, 19 Sep 2022 07:07:50 GMT

Yes, you are right, there is no build error or anything that you have missed. But for i.MX8QM, there is no specific PWM driver support.

One can take reference of "/boards/mekmimx8qm/driver_examples/tpm/".

Best Regards,
Dhruvit.

AhmedMobarez — Mon, 19 Sep 2022 07:19:09 GMT

Thanks for the reply

Is there any plan for supporting the PWM module ? if not, is it possible to port the pwm.c/.h from another SDK for use with the IMX8QM ?

Thank you

Dhruvit — Mon, 19 Sep 2022 08:41:25 GMT

There is no update planned related to this PWM driver for i.MX8QM as of now.

Yes, one can port the pwm.c/.h from another SDK for use with the IMX8QM, but NXP does not provide any support for it.

Thank you.

Best Regards,
Dhruvit.