At last I got the serial connection running, had to swap the tx pin with the rx pin.
I now have one unnecessay line in the uboot configuration storage.
flag_last_succes=0
instead of
flag_last_success=0
because I mistyped and saved the change. Can I get rid of the line somehow?
NVM I had to do "setenv flag_last_succes" without a varaiable.
Now I have build a padavan firmware with the prometheus script on a physically different network/location.
Someone knows how I can flash the trx file manually?