Pinmux configuration for MX9x

TheUncle — Sun, 22 Jun 2025 12:28:25 GMT

Hello,
I am exploring Zephyr (4.1) on MX9x (A55 core). I'm quite a newbie on Zephyr, but I'm getting into it. After checking available samples, I am now focusing on pinmux configuration.

According to the documentation, It should be possible to either:

generate .dtsi file for Zephyr from MCUXpresso Config Tool or
use modules gen_board_pinctrl.py to convert a .MEX file to .dtsi

BUT:

MCUXpresso Config Tool, as of version 25.3, does NOT support Zephyr dtsi files generation for i.MX93 yet (nor for any imx AP)
gen_board_pinctrl.py script only accepts .MEX created by MCUXpresso Config Tool V14, but even so, IMX9 family of processors is not supported out of the box. However, by specifying --controller IOMUX on the command line, I was able to get an apparently valid .dtsi file.

Am I missing something? I am aware that support for NXP's APs on Zephyr project is somewhat in progress, so I'd just like to know if there is currently any other better/proper way to generate pinmux configuration .dtsi files.

Thank you in advance and best regards.
Stefano

Re: Pinmux configuration for MX9x

June_Lu — Thu, 26 Jun 2025 07:46:27 GMT

Please refer to the file below to see if could solve your issue.

https://community.nxp.com/t5/Zephyr-Project-Knowledge-Base/Zephyr-custom-boards-and-applications/ta-p/2008567

Thanks

topic Re: Pinmux configuration for MX9x in Zephyr Project

Pinmux configuration for MX9x

Re: Pinmux configuration for MX9x