Hi, We connected a small LED to GPIO3_PAG.05 (gpio 509) and it lights by default upon power up. I wish to verify the followings to make sure we understood correctly: We can’t modify its value since its not part of the 40 pin header (using the GPIO tools). We can read its value using the debugfs…

I can confirm that its possible to do the followings: edit the pin settings via writes to its suitable register (for example changing from sfio to gpio) change the gpio value using debugfs by changing its direction first and its value later. It works. Thanks.

NVIDIA Developer Forums

Testing pinmux procedure & modifying GPIO value

Autonomous Machines Jetson & Embedded Systems Jetson Orin NX

phdm March 4, 2024, 8:45am 4

See Flashing to only qspi-nor for OrinNX - #11 by KevinFFF