Failed to set GPIO on JP6

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
1

Hello,

I’m trying to use the GPIO on Agx Orin (Running JP6.0). I’ve followed the instruction here to change a the pin to GPIO output dynamically.
The command I used to configure the GPIO is:
sudo busybox devmem 0x02435008 w 0x004

I can see that the pin (GPIO_08, pin 16 on the 40 header) has been set to output mode with gpioinfo tool.
image

But when I used the jetson-gpio to set this pin output state, it doesn’t work. Measured with multimetter, the output never changes.

The tricky thing is I did the same thing on (GPIO_33, pin 7 on the 40 header), it worked fine.

Please help with this, anything I did wrong?

2

Hi,
There is a known issue in GPIO control. Please apply the patch and rebuild kernel:

Jetson/L4T/r36.3.x patches - eLinux.org
[GPIO] Fix bit 10(SFIO) been set by gpiod

And please use libgpiod.

3

Thanks. Will try it.

4

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