Subject:
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Re: Mindstorms NXT programming languages
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 8 Jan 2006 19:29:51 GMT
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Original-From:
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Juergen Stuber <juergen@jstuber./NoSpam/net>
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Viewed:
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5351 times
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Hi Brian,
"Brian Davis" <brdavis@iusb.edu> writes:
> In lugnet.robotics, Juergen Stuber wrote:
>
> > Even on the RCX speed is not a big issue,...
>
> Actually, when using the standard firmware speed is very much a
> concern with the RCX for me... and others, if things like the
> Swan firmware are anything to go by. Currently, using NQC, I
> need to examine the bytecode generated to try to maximise
> execution speed or use custom "nop" commands to subtly slow
> things down. Execution and sensor polling speed is a very big
> issue for some things, and I hope the NXT is at least a little
> bit faster (hopefully, 10x).
On the RCX Lejos is about that much faster than the standard firmware,
and we have 1ms timer resolution.
> I do OK on the RCX now, but it usually imvolves bit manipulation to
> punch enough data into the integer variables. I'd love it if some bitwise
> operators were availible, to stretch the memory, and increase the speed.
You also get those in Lejos, and compared to NQC it can access more memory.
Jürgen
--
Jürgen Stuber <juergen@jstuber.net>
http://www.jstuber.net/
gnupg key fingerprint = 2767 CA3C 5680 58BA 9A91 23D9 BED6 9A7A AF9E 68B4
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Message has 2 Replies:
 | | NXT power (was memory, prog. langs etc)
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| My 2c based on some experience with high-level robotics programming (vision, navigation & mapping, etc): While it is concievable that you could write some sophisticated mapping and analytic software on this platform, it will require deep low-level (...) (21 years ago, 8-Jan-06, to lugnet.robotics)
| | | Re: Mindstorms NXT programming languages
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| (...) Yes. And the Swan firmware is about that much faster, with a lot of added things as well, and I can still essentially use all my NQC code and tricks. BrickOS is much faster, etc. I guess my point was that I hope the NXT is faster (...) (21 years ago, 9-Jan-06, to lugnet.robotics)
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Message is in Reply To:
| | Re: Mindstorms NXT programming languages
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| (...) Actually, when using the standard firmware speed is very much a concern with the RCX for me... and others, if things like the Swan firmware are anything to go by. Currently, using NQC, I need to examine the bytecode generated to try to (...) (21 years ago, 8-Jan-06, to lugnet.robotics)
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