NVIDIA Jetson Orin Nano Engineering Reference Developer Kit Super Board GPIO unable to work !
Please provide more details of your issue, then we can know how to help. Thanks
Below is a summary of what I have tried so far and the issue observed:
-
Platform: JetPack 6 (R36.4.4), kernel 5.15.148-tegra
-
Board reports as generic on JP6
-
Target pin: 40-pin header Pin 7 (PG.01, gpiochip0 line 36)
Actions performed:
-
Configured the pin using Jetson-IO
-
Function set to GPIO
-
Pin Direction set to Bidirectional
-
Configuration saved and system rebooted
-
-
Verified GPIO visibility using:
gpioinfo /dev/gpiochip0
-
Attempted to drive the pin using:
-
gpioset /dev/gpiochip0 36=1 -
Python control using libgpiod (v2 API)
-
-
Tested with no external load connected
-
Verified 3.3 V rail is present on Pin 1
Issue observed:
-
GPIO state changes logically in software, but
no 3.3 V output is measurable on the physical pin -
Pin remains at 0 V even when driven HIGH
Please advise on the next steps.
Basically I just need to set to bidirectional as input/output
Hi bryan.lee-zn,
If you want to control the GPIO, please configure it as Output or Bi-directional in pinmux spreadsheet.
Please try using the following command instead.
# gpioset --mode=wait `gpiofind "PG.01"`=0
# gpioset --mode=wait `gpiofind "PG.01"`=1
It seems you are using JP6.1.2, please also apply the following patch to check if it could help for your case.
40hdr - SPI1 gpio padctl register bit[10] effect by gpiod tools in JP6 - #20 by KevinFFF
Can you guide me step by step on how to configure it as Output or Bi-directional in pinmux spreadsheet and flash to the board? thanks
I found this is incorrect.
PIN7 of 40 pins expansion header is PAC.06 as following.
You can configure it as following in pinmux spreadsheet.
Please refer to Jetson AGX Orin Platform Adaptation and Bring-Up — NVIDIA Jetson Linux Developer Guide to apply the change.