UART enablement on Jetson Orin

Hi all,

Is it possible to use on AGX orin a uart from the header instead of TCU? It seems there are several uarts supported by the platform, are they enabled by the bootloader?

Or those uarts need to be explictely enabled?


Hi jorge.pereira,

Are you using the devkit or custom board for AGX Orin?

If you are using the devkit, you could use UART1 through 40-pins header and configuring them with jetson-io.

It seems that uarta is already there. Does it mean I can plug a cable ( and get access to the uart?

What about the uart clocks ? they are configured using bpmp, are they enabled by default at boot time, or linux has to enable it?


You could refer to the following thread about the UART on Orin series.
OrinNX : How to check UART is working? - #3 by KevinFFF

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