[En-Nut-Discussion] Ethernut 3.1 RS232 hardware handshake

[Ole Reinhardt]

Hey,

> it looks like if the computer RS232 port is running in a different mode as 
> the ethernut

What is the "mode" of your PC? There are more settings than flowcontrol
and baudrate. You might have 5 / 6 / 7 / 8 / 9 databits, 1 / 2 stop
bits, none / odd / even parity...

You mentioned that you are using Ethernut 3? Have you correctly jumpered
the board and have you correctly configured the uart? Ethernut3 can
share the SUBD9 connector with _two_ uarts. In this case the handshake
lines are used otherwise.

Do you have such a RS232 debug connector with 9 red and green LEDs? Try
to test if both rx / tx are "green".

Try to connect your PC to the Ethernut board with a cross cable and
check the connection. Apropos cross cable: Perhaps you have to cross the
lines! (rx / tx crossed)

Bye,

Ole

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