How to config GPIO02 and GPIO10 with Xavier_NX

Autonomous Machines Jetson & Embedded Systems Jetson Xavier NX
1

GPIO02 and GPIO10 default config wake signal. We want to config to ordinary GPIO. How to change to ordinary GPIO?

2

Hi,

I am going to move this to the Jetson Xavier NX category for visibility.

Best,
Tom K

4

hello zhujinping,

may I know what’s your use-case.
those two pins were configured as GPIOs by default, such as… GPIO02 / GPIO3_PQ.03, and GPIO10 / GPIO3_PQ.01.
you may download pinmux spreadsheets to review the default settings, please check developer guide, Pinmux Changes for the instructions to change the pinmux configuration.
thanks

5

I use GPIO02 and GPIO10 as GPIOs,
GPIO02 config input as follows:
echo 419 > /sys/class/gpio/export
echo input > /sys/class/gpio/gpio419/direction
cat /sys/class/gpio/gpio419 value still 1 when input high or low level.
GPIO10 use 417 to test is the same result as GPIO02.

6

hello zhujinping,

please add a level shifter on the target signal line to convert from 3.3V to 1.8V level logic signal.
please also access app notes for GPIO usage considerations, thanks

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