Subject:
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Re: [tinyvm-discussion] Fwd: Getting lejos running -- anyone advise?
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Newsgroups:
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lugnet.robotics.rcx.java
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Date:
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Fri, 12 Jan 2001 16:42:38 GMT
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Reply-To:
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jhsolorz@/NoSpam/yahoo.com
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Viewed:
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2637 times
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--- Andy Gombos <gombos_2000@yahoo.com> wrote:
> I saw this on the lego-robotics list, and am
> forwarding it here.
> Note: forwarded message attached.
>
>
> ATTACHMENT part 2 message/rfc822
> From: Simon Brooke <simon@jasmine.org.uk>
> To: <lego-robotics@crynwr.com>
> Subject: Getting lejos running -- anyone advise?
> Date: Thu, 11 Jan 2001 23:46:24 +0000
>
> I'm trying to get lejos running on my RCX, and
> having difficulty. I've
> downloaded lejos 1.0.0 beta 3 from
> <URL:http://lejos.sourceforge.net/>, and
> followed the instructions from the README exactly,
> but I get no joy.
>
> I can do lejosfirmdl, and this seems to complete OK,
> either with or without
> the -f flag:
>
> bash-2.03$ lejosfirmdl -f
> Use --help for options.
> Transferring "Fast Download Image" to RCX...
> 100%
> Transferring
"/home/simon/notes/projects/lego/lejos_1_0_0beta3/bin/../bin/lejos.srec"
> to
> RCX...
> 100%
>
> After dowloading firmware I get a number between
> 0085 0 and 0080 0 on the
> display which I presume is my battery level.
>
> However when I try to send the 'View' example or the
> 'HelloWorld example, I
> get the following, consistently:
>
> bash-2.03$ lejos View
> transfer data: RCX says there's an error.
> lejosrun: returned status 1.
>
> If I try it again I get
>
> bash-2.03$ lejos View
> lejosrun: returned status 1.
> Unexpected response from RCX. The RCX either doesn't
> have valid leJOS
> firmware or it is not in program-download mode.
> (lejosfirmdl downloads
> firmware).
>
> and the display shows 0001 0
>
> I've also tried lejos -o View.bin View.java followed
> by lejosrun View.bin.
> The compilation of the binary worked fine, the
> download to the RCX failed
> with the same error.
>
> My RCX is a 1.0, serial number 039267; it has
> previously run nqc 1.3 and
> legos 0.1.4, 0.1.7 and 0.2.3, all successfully. I'm
> running Debian potato on
> a Linux 2.2.17 kernel; my JDK is Sun JDK 1.2.2. Any
> ideas what I should try?
>
> Cheers
>
> Simon
It's unusual for lejosfirmdl to be working better
than the program downloader :)
Anyway, turn the RCX off and on again, then try
different ranges. You might want to change the
range in the IR tower. Newer batteries might also
help. Turn the RCX off and on whenever there's
a program download error.
--Jose
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