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 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: 
993 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 (...) (25 years ago, 13-Oct-99, to lugnet.robotics.handyboard)

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