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Article #816

Re: Motor controller boards

#816
From: Gerry Roston
Date: Tue, 20 Nov 1990 15:36
50 lines
2276 bytes
Someone hits a sore spot!  Unfortunately there is a dearth of GOOD VME
based motor controller boards.  A quick summary follows, obviously,
there is a bunch of personnel prejudice:

GALIL:  Crap.  Uses ASCII, etc.
CREONICS, Ver 1:  Crap.  Uses byte transfer.  Also, very difficult to
   talk with card.  Each transfer requires several interrupts, reads,
   writes, etc.  I have written a really sweet VxWorks device driver
   for these, but there is no way to prevent things from screwing up
   if multiple interrupts near simultaneously.
CREONICS, Ver 2:  Crap?  Supposed to fix bugs in Ver. 1, but I
   understand that it is very buggy.  This may have been fixed.
DELTA TAU DATA:  Has a bunch of nice features, but is also limited by
   ASCII data transfer.  Generates too many interrupts (?)
PRECISION MICRO CONTROL:  My current choice.  Uses 32 bit word data
   xfer, supports interrupts (although maybe not flexible enough), and
   can have up to 6 axes per board.  A device driver should be real
   easy.
COMPUTER MOTION INC - 3DP: Looks super cool!  Goes in backplace of a
   Sun, is screaming fast, and costs only $20,000.  Seriously!

Creonics Inc
Etna Road
Lebanon
New Hampshire  03766
603-448-6300

Delta Tau Data Systems
21119 Osborne Street
Canoga Park
California   91304
818-998-2095

Precision Micro Control
3555 Aero Court
San Diego
California  92123
617-576-8058

Computer Motion Inc.
475E Cannon Green Drive
Goleta
California  93117
805-685-3729

--
gerry roston, field robotics center
robotics institute, carnegie mellon university
pittsburgh, pennsylvania, 15213  (412) 268-6557
gerry@cs.cmu.edu
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From: gerry@frc2.frc.ri.cmu.edu (Gerry Roston)
Newsgroups: comp.robotics
Subject: Re: Motor controller boards
Message-ID: <GERRY.90Nov20103634@onion.frc.ri.cmu.edu>
Date: 20 Nov 90 15:36:34 GMT
References: <6058@munnari.oz.au>
Sender: netnews@cs.cmu.edu (USENET News Group Software)
Reply-To: gerry@frc2.frc.ri.cmu.edu (Gerry Roston)
Organization: Field Robotics Center, CMU
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In-Reply-To: ross@ecr.mu.oz.au's message of 19 Nov 90 23:05:29 GMT