Jetson Orin Nano UART /dev/ttyTSH0 not working

Hello, Im trying to connect a pixhawk px4 to the Jetson Orin Nano Expansion Header J12 Pins 8,9,10 but when i run the command --master=/dev/ttyTHS0

i get:

Connect /dev/ttyTHS0 source_system=255
Log Directory: 
Telemetry log: mav.tlog
Waiting for heartbeat from /dev/ttyTHS0
MAV> link 1 down

there seems to be an issue with communication through the GPIO pins, has anyone else resolved this issue?

thank you for your time

I am able to connect through USB but i cannot use USB since it interferes with the RC control and im not able to use it.

There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.

Hi castej10,

Are you using the devkit or custom board for Orin Nano?
What’s your Jetpack version in use?

What is this python coming from and the usage?
Is that the script to setup the UART to communicate with your px4?

Could you clarify what’s your issue currently?
Are you using USB or UART from Orin Nano to communicate with your px4?

Please also share the full dmesg for further check.