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 09:24:10 GMT
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Viewed:
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2922 times
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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 has 1 Reply:
 | | Re: strange motor behaviour
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| Marko, Here's a thread that might give a little more background on the BrickOS bug Jochen mentions: (URL) Hoenicke" <Jochen.Hoenicke@Inf...enburg.DE> wrote in message news:200304021124.11...burg.de... (...) (22 years ago, 2-Apr-03, to lugnet.robotics.rcx.legos)
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Message is in Reply To:
| | strange motor behaviour
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| 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 (...) (22 years ago, 1-Apr-03, to lugnet.robotics.rcx.legos)
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