> PSL wrote:
> 
> Hello People
> 
> Do any one know of any sites that explain what is serial com
> explain things like baud rate, inverted polarity..all that stuff.
> thanks
> 
> regards


Need RS-232 routines for PICmicros without UARTs?

Basic Stamp Compatible PIC Source Book/Disk On-Line Version Free!
Now converted to MicroChip Code, still available in Parallax Code.

A collection of ready-to-use assembly language routines 
based on the instruction set of the BASIC Stamp ¨ single-board
computer by Scott Edwards Electronics.
                                                
Serin (receive data) receives a byte or string of bytes serially.
Optionally filters incoming data to a particular range of ASCII 
characters, such as numbers. 
 
Serin (convert # data) converts a numeric text string received 
by Serin into a 16-bit number. 
  
Serin (check qualifiers) determines whether text received by 
Serin matches a table of qualifiers (password).  

Serout (send data) transmits a byte or string of bytes serially
  
Serout (format # data) converts a 16-bit number into a counted 
string for transmission by Serout.   

Includes useful schematics.
For MicroChip code:
http://www.dontronics.com/convert.html
For Parallax code:
http://www.dontronics.com/see.html

Don McKenzie  mailto:don@dontronics.com http://www.dontronics.com

Don's Download Dungeon:   http://www.dontronics.com/download.html
Australian Electronics Ring http://www.dontronics.com/aering.html
Win $500USD Cash. Micro design contest:  http://www.simmstick.com