Thanks Stephen and Jerry, that helps. I just don't want to implement something and then find out I am getting bad data, or else incomplete data.
Bob On Aug 15, 2012, at 11:47 AM, Jerry Jensen wrote: > Mark and space are the two possible levels of a single bit. Mark corresponds > to a logical 1 and in RS-232 is a *negative* voltage. Space is a logical 0, a > positive voltage. Parity is an extra bit tacked onto a word as rudimentary > error checking. 7 bits even parity uses the extra bit to make the number of > ones in the word be even. Likewise, odd parity sets the parity bit to make > the number of ones in the word be odd. Most commonly these days is 8 bits, no > parity. Note the ASCII is 7 bits, so the 8th bit, which might or might not be > a parity bit, is often ignored. > > There are a lot of Marks around here. Smart ones too! I'm usually one of the > spaces. Think positive! > > .Jerry > > On Aug 15, 2012, at 11:20 AM, Bob Sneidar 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 "http://www.troz.net/rev/stacks/SerialTest.rev"; >> >> >> _______________________________________________ >> use-livecode mailing list >> use-livecode@lists.runrev.com >> Please visit this url to subscribe, unsubscribe and manage your subscription >> preferences: >> http://lists.runrev.com/mailman/listinfo/use-livecode > > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
