How to change the default GPIO about Jetson NX

[anrui]

Hi:
I have some problem about the GPIO about the Jetson Xavier NX, I want to change the GPIO12 (pin218) to be output drive 0;

But I look up the dts,about tegra194-p3668-all-p3509-0000.dts, I don’t see that about the gpio default config. such as below.

I tried to insert the default title to the dts, but It does’t effect, how can I change the default gpio by change dts.

[JerryChang]

hello anrui,

this is pin is default configure as Baseboard 40 Pin Header PWM
please download pinmux spreadsheets to change the pin configurations to modify the pin settings.
thanks

[anrui]

hello
I tried to pinmux spreadsheets to do, I Click on the botton of generate, it’s generate there dtsi,such as flow.

but I can not find The corresponding dtsi in my sdkpackage

[JerryChang]

hello anrui,

you must convert the .dtsi file generated by Excel into a .cfg file,
please check developer guide, pinmux changes.
you’ll need to perform the script, $OUT/Linux_for_Tegra/kernel/pinmux/t19x/pinmux-dts2cfg.py to convert the files.
thanks

[anrui]

It’s ok，thank you！