Sio serial module install problem with ActiveState
yaipa at yahoo.com
Fri Jul 25 06:49:49 CEST 2003
Thanks, basically one server feed many serial clients. From the sound
of your post I had better get "Serial Port Complete" before giving it
Peter Hansen <peter at engcorp.com> wrote in message news:<3F146F57.94A49564 at engcorp.com>...
> "yaipa h." wrote:
> > All,
> > Worked like a charm for me too! I used it to develop an
> > automated attendant for a Serial Oven Controller. The
> > attendant ran from Sparc Solaris using Python 2.1 and pySerial.
> > The only weird thing, which I didn't get a chance to
> > debug, was a perfectly working script under RS-232
> > got terribly out of sync when R/W I/O to a RS-485
> > serial network. Any reason why that would be?
> Well, one reason might be that RS232 is point-to-point, while
> RS-485 is many-to-many, at least in principle. Was this a
> bus network, or at least a "multidrop" situation with one master
> and many slaves? There are no guarantees in those situations, unless
> you've been very careful to ensure proper handshaking, timing,
> and such.
> If you want to discuss this, please define "out of sync" in more
> detail... it could mean anything.
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