Subject:
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Re: strange motor behaviour
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Wed, 2 Apr 2003 16:50:29 GMT
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Viewed:
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2847 times
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Marko,
Here's a thread that might give a little more background on the
BrickOS bug Jochen mentions:
http://news.lugnet.com/robotics/rcx/?n=1839
HTH,
Mark
"Jochen Hoenicke" <Jochen.Hoenicke@Informatik.Uni-Oldenburg.DE> wrote in
message
news:200304021124.11918.jochen.hoenicke@informatik.uni-oldenburg.de...
> On Tuesday 01 April 2003 22:19, Marko Ortmueller wrote:
> > Hello,
> > I wonder if somebody can help me wíth the following problem.
> > In general my program is running okay but when I change the
> > attached data definition, the two motors I use show very strange
> > behaviour (just making some noise and moving very slow in random
> > directions).
>
> The problem is that the upper memory area (0xf000-0xf800) is connected
> to both RAM and motor output. Every byte written here is also
> interpreted as motor command. The latest CVS version of BrickOS has
> fixed this (this memory is written only once with OS code and then
> only used read-only).
>
> Jochen
>
> --
> Jochen Hoenicke, University of Oldenburg, 26111 Oldenburg, Germany
> Email: hoenicke@informatik.uni-oldenburg.de Tel: +49 441 798 3124
>
>
>
>
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Message is in Reply To:
 | | Re: strange motor behaviour
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| (...) The problem is that the upper memory area (0xf000-0xf800) is connected to both RAM and motor output. Every byte written here is also interpreted as motor command. The latest CVS version of BrickOS has fixed this (this memory is written only (...) (21 years ago, 2-Apr-03, to lugnet.robotics.rcx.legos)
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