GPIO Mapping in pinmux sheet to Jetson.GPIO python lib

[KevinFFF]

Hi r.vries,

Is your custom board desgin similar to the devkit?
If yes, you could try using Jetson GPIO, or add your own gpio configuration in the following.
jetson-gpio/gpio_pin_data.py at master · NVIDIA/jetson-gpio · GitHub

Or you could just use kernel level command with export to control GPIO.

#cat /sys/kernel/debug/gpio

Or you may refer to the following topic to access GPIO:
Jetson Nano Fast GPIO C++ Example with Direct Memory Access (DMA) - Jetson & Embedded Systems / Jetson Nano - NVIDIA Developer Forums