[En-Nut-Discussion] rs232d_example_question

[Kersten Voigtsberger]

Hello,

Using the rs232d example for my own application that only 
should transfer the rs232 client inputs to the telnet client 
and the telnet client inputs to the rs232 client without any 
local echo, I have some trouble because of the two calls of 
the StreamCopy function from the two different threads (inputs 
with a telnet client are echowed back to the telnet client 
itself, even though the telnet client's local echo is 
disabled, flushing the buffers and so on..).

Because I'm a ethernut newbe and I did not understand yet 
in detail how device structure, device driver and stream 
work together and because I would like to maintain the 
essential structure of the program (which is very effective, 
I think) I have a question to the main ethernut protagonists: 

Please, can somebody help me to change the example in such 
a way that the echos to the telnet client are prevented?
Only the inputs with the rs232 client should be transferred 
to the telnet client and not its own inputs (and vice versa). 
 

I use Ethernut2.1, NutOS 3.9.7.1, iccavr, 
xp's built-in telnet client and hyperterminal. 
 

Thanks in advance

Kersten


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Kersten Voigtsberger
Forschung & Entwicklung
FLEXIVA automation & Robotik GmbH
Annaberger Str. 240
09125 Chemnitz
Tel.: +49-0371-5347-612
Fax.: +49-0371-5347-611
kersten.voigtsberger at flexiva.de
www.flexiva.de