OH3 + Armbian (or Dietpi) + odroid n2+ and UART

alda1 · March 30, 2023, 4:28pm

I have OH3 running on the armbian on odroid n2+.
My problem is that RX/TX isn’t working (pin8 and 10):

in armbian-config I switched on a uartA:

but what is device name ? I tried ttyS1 and also ttyAML1 but not working
What’s wrong ?
Please help
Thank you

Wolfgang_S · March 30, 2023, 5:08pm

Do you know this https://wiki.odroid.com/legacy/common/application_note/gpio/uart ?

alda1 · March 30, 2023, 5:15pm

yes:

armbian bad luck, dietpi also …

Wolfgang_S · March 30, 2023, 5:39pm

Have a look here https://forum.odroid.com/viewtopic.php?t=37019 the path /meda/boot/… seems to be wrong.

alda1 · March 30, 2023, 5:42pm

I think I must switch to this ubuntu:
getting_started:os_installation_guide [ODROID Wiki]

Wolfgang_S · March 30, 2023, 6:24pm

Have you seen my previous post

alda1 · March 30, 2023, 6:42pm

yes, same error as before
looks like it’s valid only for original OS

Wolfgang_S · March 30, 2023, 6:47pm

What is content of the /boot directory ?

alda1 · March 30, 2023, 7:04pm

this for dietpi which I have running now, but armbian has nearly the same

Wolfgang_S · March 30, 2023, 7:55pm

What is the content of the two dtb directories?

alda1 · March 31, 2023, 4:41am

directory overlay:

content of the “dtb” and “dtb-6.1.11-meson64” is the same