Subject:
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Memory - Where did it go?
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 6 Jul 2006 23:59:58 GMT
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Original-From:
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Tom Stiles <HAMRAD45@HOTMAIL.saynotospamCOM>
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Viewed:
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4709 times
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I got my Mindstorms NXT this past weekend and built the demo unit and then
the Claw with only minor programming errors. Tonight I started using some
of the various programming functions. My first program was to use the sonar
and detect the presence of someone and then play 1 of 5 random sound files.
Pretty simple. One problem, "out of memory"! After reading the help file I
was informed that out of the 256K of memory (which is small to begin with),
only about 56K is available for user files including sound files. Well, my
5 sound files were well over that limit alone. Reading the help file more
indicated that I could get more memory free by deleting some of the basic
files that come pre-loaded and if there is a problem you could reload the
firmware. Well, I had read that when some people try to upgrade/load the
firmware, their system becomes useless. So for now I have hesitated to
delete any files, not knowing which files I can delete with no problems.
Questions:
1) Can any one give me some idea what the pre-loaded (system) files are and
which one I can delete safely?
2) Can someone show me one of their more complicated programs and how much
memory it took? (I am thinking about just generating some random
programming with a lot of functions but no sound bytes to see how effiecent
the program is when complied but an example of a large real program would be
better).
Thanks for your time,
--
Tom S.
--
View this message in context: http://www.nabble.com/Memory---Where-did-it-go--tf1903631.html#a5209554
Sent from the LEGO Robotics forum at Nabble.com.
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Message has 2 Replies:
 | | Re: Memory - Where did it go?
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| (...) Once you delete a lot of the "Try me" and on-brick programming stuff, this jumps up to (IMS) 120k+ or so. Still not ideal (yeah, I'd like a Mb of memory as well :-), but much better. As to what to delete, I've taken everything off but the (...) (18 years ago, 8-Jul-06, to lugnet.robotics)
| | | Re: Memory - Where did it go?
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| (...) With a newly loaded firmware: C:\WINAPPS\projects\...c>nexttool /COM=x -freemem 70324 C:\WINAPPS\projects\...c>nexttool /COM=x -listfiles NVConfig.sys=1 RPGReader.sys=14346 Demo.rxe=9436 Try-Touch.rtm=3788 Try-Light.rtm=4456 Try-Sound.rtm=6864 (...) (18 years ago, 10-Jul-06, to lugnet.robotics)
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