This is my favorite treatment of the subject:

http://www.beowulf.demon.co.uk/serial-stepper.html


John Clark
Indianapolis, IN


-----Original Message-----
From: Kosmerchock, Steve [mailto:Steve.Kosmerchock@RFSWORLD.COM]
Sent: Wednesday, May 17, 2000 2:21 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: PIC and controlling a stepper motor


Friends,

I looked at piclist.com but the search did not come up
with any answers. I also looked at the archive at Iversoft
but my search did nothing as well. What I need to do is control
a bi-polar stepper motor, fwd and rvs. Does anybody know of
information (tutorial, code examples,...etc) or has any
info that would be willing to share with me. I will
be using the ST ( and ALLEGRO) 6219 stepper motor driver
with a PIC16F874-20/P.
Any help/advice would be greatly appreciated.

Thanks alot!!

Best regards,
Steve


Steven Kosmerchock
Student/Father/Engineering Technician
Radio Frequency Systems
Phoenix  Arizona   USA
www.rfsworld.com

www.geocities.com/researchtriangle/lab/6584