Serial ports
Configuring serial ports[edit]
Set serial port 4:
config-pin p9.11 uart config-pin p9.13 uart stty -F /dev/ttyO4 sane
It works if cross-connected with port ttyO1:
cat "pippo" > /dev/ttyO1
cat /dev/ttyO4
but not with RDM6300. FUCK FUCK FUCK