PySerial rereads its own data

Cliff Wells LogiplexSoftware at earthlink.net
Tue Jun 3 13:54:40 EDT 2003


On Mon, 2003-06-02 at 16:45, Peter Hansen wrote:
> Cliff Wells wrote:
> > 
> > I'm trying to write an app that talks to a bit of hardware on the serial
> > port.  As a test setup, I've got a null modem cable linking /dev/ttyS0
> > and /dev/ttyS1 on the same PC.
> [snip]
> > 'hello' correctly appears on the console running 'cat /dev/ttyS1'.
> > 
> > My question is this:  why do I get back the data I just wrote?  More to
> > the point, how do I stop it?
> 
> Maybe check (or post?) the output of "stty" for /dev/ttyS0 on the
> sending machine?  Echoing?

I was thinking the same thing after I got home last night, but that
doesn't appear to be it:

# stty -F /dev/ttyS0
speed 9600 baud; line = 0;
-brkint -imaxbel

# stty -F /dev/ttyS1
speed 9600 baud; line = 0;
-brkint -imaxbel


Regards,

-- 
Cliff Wells, Software Engineer
Logiplex Corporation (www.logiplex.net)
(503) 978-6726  (800) 735-0555






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