SEROUT Command Structure

Archiver

Okay... I know it sounds like a silly question, and I hate to be the
one to ask it, but what is the format for the out put of the serout
command on a BS2? I have been try to write a subroutine for a PIC
16F84 to read the serial data from a BS2 from the serout command,
and I cant figure out whether or not the serout command outputs a
startbit and/or stop bit, and if so or either, is the timing between
bits the same as whatever i set the baud to? I am inteding to use a
standard 8N 4800 baud, but i just dont know about the start and stop
bits. If someone could gimme some advice, id be very greatful.
Thanks everyone.

.-=Ben=-.

Archiver

Hi Ben,

Yes the Stamp serout command transmits both a start bit and at least
one stop bit (usually more). You can find an example diagram here:
<http://www.emesys.com/BS2rs232.htm> on this page near the top after
the baudmode table, and also information on timing specific to the
Stamp. Also look at the Parallax BASIC Stamp manual, or Jan Axelson's
book <http://www.lvr.com>. There is PIC code for RS232
communications avaialble online, and in particular Scott Edwards'
code from the PIC source book is available in the public domain at:
<http://www.dontronics.com/see.html>

-- Tracy



>Okay... I know it sounds like a silly question, and I hate to be the
>one to ask it, but what is the format for the out put of the serout
>command on a BS2? I have been try to write a subroutine for a PIC
>16F84 to read the serial data from a BS2 from the serout command,
>and I cant figure out whether or not the serout command outputs a
>startbit and/or stop bit, and if so or either, is the timing between
>bits the same as whatever i set the baud to? I am inteding to use a
>standard 8N 4800 baud, but i just dont know about the start and stop
>bits. If someone could gimme some advice, id be very greatful.
>Thanks everyone.
>.-=Ben=-.