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Date: Tue, 22 Nov 2011 03:41:01 +1100
Subject: Re: Non-POSIX parity (mark/space) with Python-Serial on Linux.
From: Chris Angelico <rosuav@gmail.com>
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:16023

On Tue, Nov 22, 2011 at 3:28 AM, Matthew Lenz <matthew@nocturnal.org> wrote=
:
> Using 8N1 under minicom with this device resulted in garbled text when on=
ce connected. =A0Connection using 7M1 resulted in the correct text. =A0So t=
here must be something else that needs to be done in my python program corr=
ect?

Using 8N1 when it's really 7M1 means you have the high bit set on
every byte. I don't know if there's an easy way to do this fast in
Python, but what you need to do is mask them all off... I'm not sure
if there's a better way, but this ought to work:

string =3D "".join(chr(ord(x)&0x7f) for x in string)

In Python 3, iterating over a 'bytes' string produces integers, so
omit the ord() call. Other than that, code is not tested.

ChrisA