Orin Nano pin question

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

Hi,

Can you please help me understand if this gpio is exposed on the Orin Nano Devkit, on which pin, or if it’s connected to anything. I can see it being configured as output, default high in:

Linux_for_Tegra/bootloader/tegra234-mb1-bct-gpio-p3767-hdmi-a03.dtsi

TEGRA234_AON_GPIO(CC, 1)

and in

Linux_for_Tegra/bootloader/generic/BCT/tegra234-mb1-bct-pinmux-p3767-hdmi-a03.dtsi

 			spi2_miso_pcc1 {
 				nvidia,pins = "spi2_miso_pcc1";
 				nvidia,function = "rsvd1";
				nvidia,pull = <TEGRA_PIN_PULL_NONE>;
				nvidia,tristate = <TEGRA_PIN_DISABLE>;
				nvidia,enable-input = <TEGRA_PIN_DISABLE>;

Is it pin 22 on the 40pin header or something else?

Thank you

2

Hello AlexCo

Based on the pinmux document: Jetson Orin NX Series and Jetson Orin Nano Series Pinmux the usage is Baseboard Power LED Control.

SODIMM Pin  Jetson Orin NX        Customer Usage   Devkit Usage
            and Nano Function
127         GPIO04                GPIO3_PCC.01     Baseboard Power LED Control

Manuel Leiva
Embedded SW Engineer at RidgeRun
Contact us: support@ridgerun.com
Developers wiki: https://developer.ridgerun.com
Website: www.ridgerun.com

4

Thanks, so that controls the power LED located near the USB. It can be toggled using sudo gpioset --mode=wait gpiochip1 13=0 and the line -13 - can be determined with sudo gpioinfo 1 in case it’s helpful for anyone else.

5

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