UART Not Working on Radxa Zero 3E with Armbian OS

[Amazmyh]

Hello everyone,

 

I’m using a Radxa Zero 3E with Armbian 24.8.1 Bookworm OS and trying to connect a device to Radxa via UART. However, I can’t seem to find the ttyAML0 interface. The only UART interfaces visible are ttyS1 and ttyFIQ0 , but neither works for my setup. I have connected the device to the UART_AO_A pins (pins 8 and 10).

 

Additionally, when I go to armbian-config -> System -> Hardware, no hardware appears on the screen.

 

Could this issue be related to the Armbian image I am using? I’ve already tried the b6 image, but it has a boot problem. I also noticed that the other official Radxa images are marked as pre-release.

 

Is there a specific image I should use for stable UART functionality, or is there a way to solve this issue on the current setup?

 

Any guidance on resolving the UART problem would be greatly appreciated!

Thanks in advance for your help!

[Werner]

Providing logs with 

armbianmonitor -u

 helps with troubleshooting and significantly raises chances that issue gets addressed.