To LUGNET HomepageTo LUGNET News HomepageTo LUGNET Guide Homepage
 Help on Searching
 
Post new message to lugnet.robotics.handyboardOpen lugnet.robotics.handyboard in your NNTP NewsreaderTo LUGNET News Traffic PageSign In (Members)
 Robotics / Handy Board / 6888
6887  |  6889
Subject: 
Re: Motor Controller Question
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Wed, 13 Oct 1999 15:24:00 GMT
Viewed: 
3192 times
  
bruce, for the HB you need to write data to $7000 to control the
motors.  see appendix B of the 6.270 manual at

  http://el.www.media.mit.edu/projects/handy-board/techdocs/

and also the HB FAQ

  http://el.www.media.mit.edu/projects/handy-board/faq/

fred

In your message you said:
> > From what I could figure out from the literature on the HB, the motor
> controller circuit is controlled by Port B on the 6811.  With a little
> tinkerin last nite I was trying to set/reset some of the pins poking values
> into $1004 (Got this from "An Introduction to the 6811" by Fred.  I assumed
> that the miniboard used the same port for motor control that the HB does).
> It didn't seem to work.  No changes at the l293 inputs.  So......  I got to
> wonderin.....  Are the PWM routines overriding my changes.  If so, is there
> a way to disable the PWM so that I could use those outputs.
> 
> For what I'm trying to do, I don't use the motor controllers and I don't
> want to give up any of the other input capability.
> 
> Thanks
> 



Message is in Reply To:
  Motor Controller Question
 
From what I could figure out from the literature on the HB, the motor controller circuit is controlled by Port B on the 6811. With a little tinkerin last nite I was trying to set/reset some of the pins poking values into $1004 (Got this from "An (...) (27 years ago, 13-Oct-99, to lugnet.robotics.handyboard)

2 Messages in This Thread:

Entire Thread on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact
    

©2005 LUGNET. All rights reserved. - hosted by steinbruch.info GbR