Jetson AGX cannot control the PAC.04 pin in version R36.3

Autonomous Machines Jetson & Embedded Systems Jetson AGX Orin
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1

I need to change PAC.04 to output mode and need it to output a high level, but I find that I can’t get it to output a high level properly either while driving or in the system to control it.

The operation method is as follows:
image

I measured with a multimeter and found that the voltage was still 0v. So there are other ways I can control the pin output high level?

2

Hi,
If the device cannot be flashed/booted, please refer to the page to get uart log from the device:
Jetson/General debug - eLinux.org
And get logs of host PC and Jetson device for reference. If you are using custom board, you can compare uart log of developer kit and custom board to get more information.
Also please check FAQs:
Jetson AGX Orin FAQ
If possible, we would suggest follow quick start in developer guide to re-flash the system:
Quick Start — NVIDIA Jetson Linux Developer Guide 1 documentation
And see if the issue still persists on a clean-flashed system.
Thanks!

3

Hi,
I use the R35.4 system version and can control the pin normally, but when I update to R36.3, I have this problem.

4

  1. Please use rel-36.4.

  2. Please read this post for checking. The pin is different but debug logic is same.
    Jetpack 6 on Jetson Orin Nano Devkit 8GB cannot LED ON/OFF via GPIO - #31 by sergiosolorzano
    It could be wrong pinmux setting too.

5

Hi,
I updated to version R36.4.1 and I found the same problem. Still can’t pull up this GPIO.

6

So have you dumped the register to check the status of the GPIO?

Have you confirmed your pinmux setting is correct?