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"Zhengrong Zang" <mikezang@iname.com> writes:
>
> I am using legOS and NQC, I also viewed lejOS, but I am not sure if lejOS
> can provide all functions of legOS provides,
No, for example LNP and speedometer are missing,
motor control is standard with 8 power levels.
In general it uses the standard ROM routines much more than legos.
On the good side the rotation sensor problems it had until
two months ago are now resolved, and there are already discussions
about implementing some communication protocol (that could be LNP).
> then does lejOS run in the same speed as legOS?
No, you can't expect that from a virtual machine.
IMHO the main advantage of lejos is that it is easier to use
than legos. It doesn't just hang when you do a programming error,
it gives you an exception code, for instance when your array indices
are out of bounds or your pointers point somewhere you don't want them to.
Legos will often just hang, at least that was my experience when
I tried legos a year ago.
So I'd recommend it to anybody who wants something more powerful
than NQC, but doesn't want to go all the way down to C.
Jürgen
--
Jürgen Stuber <stuber@loria.fr>
http://www.loria.fr/~stuber/
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Message is in Reply To:
9 Messages in This Thread: ![Does lejOS has the same functions as legOS? -Zhengrong Zang (18-Sep-01 to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.java)](/news/x.gif) ![](/news/246.gif) ![You are here](/news/here.gif)
![](/news/x.gif) ![](/news/68.gif) ![1.0,1.5 or 2.0 ? what gives ? -Kenneth Johansen (28-Sep-01 to lugnet.robotics.rcx.legos)](/news/x.gif) ![](/news/246.gif) ![Re: 1.0,1.5 or 2.0 ? what gives ? -Juergen Stuber (28-Sep-01 to lugnet.robotics.rcx.legos)](/news/x.gif) ![](/news/46.gif) ![Re: 1.0,1.5 or 2.0 ? what gives ? -Roger Glassey (9-Oct-01 to lugnet.robotics.rcx.legos)](/news/x.gif)
![](/news/x.gif) ![](/news/x.gif) ![](/news/268.gif) ![Re: 1.0,1.5 or 2.0 ? what gives ? -Mark Falco (28-Sep-01 to lugnet.robotics.rcx.legos)](/news/x.gif)
![](/news/x.gif) ![](/news/x.gif) ![](/news/68.gif) ![what Operating systems are there for the RCX? -Kenneth Johansen (3-Oct-01 to lugnet.robotics.rcx.legos)](/news/x.gif) ![](/news/246.gif) ![Re: what Operating systems are there for the RCX? -Roger Glassey (4-Oct-01 to lugnet.robotics.rcx.legos)](/news/x.gif)
![](/news/x.gif) ![](/news/x.gif) ![](/news/68.gif) ![Re: what Operating systems are there for the RCX? -Albert Huang (7-Oct-01 to lugnet.robotics.rcx.legos)](/news/x.gif)
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