[Ilugc] Serial Communication - Mark/Space parity problem
- From: steve@xxxxxxxxxxxx (steve)
- Date: Wed Feb 10 12:04:46 2010
On 02/09/2010 04:35 AM, M.Ganesh wrote:
Hi All,
I am trying to use python& pyserial on Ubuntu 9.10 to communicate with
a serial device. I need to be able to set the parity bit Mark/Space for
this particular device. I understand linux/posix compliant OSs don't
natively support this. I googled and found this
[http://www.lothosoft.ch/thomas/libmip/markspaceparity.php] link and
implemented that in my code. With this I am able to send only one byte
with my desired parity and the port somehow goes back to 'No parity'
after one byte.
Umm, a quick glance at that pyserial documentation tells me that the parity
mode
setting can be done using the module constants:
http://pyserial.sourceforge.net/pyserial_api.html#constants
is this how you are setting the parity bit ?
I am assuming that pyserial should do the RIGHT THING(tm) irrespective of the
OS, which might not be true if instead you are twiddling around using the
termios module (as suggested in the link you posted).
cheers,
- steve
PS: You can also direct your python specific questions to the bangpypers
mailing
list where a number of Indian pythoniasts hang out:
http://mail.python.org/mailman/listinfo/bangpypers
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