I use orin Nano development board, which file should be modified to modify the device tree?

Robotics & Edge Computing Jetson & Embedded Systems Jetson Orin Nano
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Development board environment:Jetson Linux35.3.1
core board：orin Nano4GB
board：Jetson Orin Nano Developer Kit

I’m new to this。
I use orin Nano development board, which file should be modified to modify the device tree?

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Hi 56101855,

May I know what’s your requirement to modify device tree?

If you want to modify some property for experiment, you can just decompile /boot/dtb/kernel_XXXX.dtb on your board to dts and assemble it back to dtb.
If you want to modify device tree before flash, please refer to Kernel Customization — Jetson Linux Developer Guide documentation to sync the source and build kernel image/dtb.

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I want to modify the device tree before flash to add my own device node. (Say I want to manipulate a GPIO, add a GPIO node to the device tree, and write the driver myself).

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1731640109886

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Okay, please just refer to Kernel Customization — Jetson Linux Developer Guide documentation to download the kernel source.
You can add the custom driver and configure the device tree.

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