Serial Port Access

stephen barncard stephenREVOLUTION2 at
Wed Aug 15 14:40:12 EDT 2012

Serial ports are an inexact science, especially with imbedded systems. Just
jiggle the handle until it works and be glad when it does.  Probably the
designers of the phone system did away with parity checks and handshaking
because they had trouble implementing it and is not needed for control
applications and short runs. Handshaking makes speeds greater than 9600
baud possible

On Wed, Aug 15, 2012 at 11:20 AM, Bob Sneidar <bobs at> wrote:

> Hi all.
> I noticed Sarah's stack has for parity, "None, Odd, Even". I am dealing
> with an old phone system that uses "space" but there is also "mark". What
> is the significance of this, and does parity even matter? I have the stack
> set to even now, and have had it set to none and I still seem to get the
> data just fine, but I want to make sure.
> Bob
> On Aug 10, 2012, at 6:03 PM, stephen barncard wrote:
> > Sarah's serial stack
> >
> > go URL ""
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Stephen Barncard
San Francisco Ca. USA

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