I agree with the Configurators but if anyone is convinced that the
there is a firmware problem then please attach a simple rbt file that
someone could look at.
I can try it on a mac and a pc.
David
Sent from my iPhone
On Nov 3, 2009, at 4:09 PM, Configurators <[log in to unmask]> wrote:
> We found multiple times that inserting time delays between
> functional blocks will eliminate ‘skipping’ or unexpected
> behavior. Time delay will allow motion to settle and inertia to dis
> sipate allowing sensors to start from a stable platform.
>
> Time is of the essence so delay does not need to be great – sometime
> s fraction of a second is enough.
>
> Good luck to all
>
> Configurators
>
>
>
>
> From: First Lego League in Virginia and DC [mailto:VADCFLL-L@it-
> listserv1.jmu.edu] On Behalf Of Rusty West
> Sent: Tuesday, November 03, 2009 3:03 PM
> To: [log in to unmask]
> Subject: Re: [VADCFLL-L] Programming/brick problem
>
> Ditto,
> We have had the same problem. Sometimes it skips blocks and other
> times it doesn’t. We verified it by putting in sound beeps in certa
> in areas and it skipped those beeps and the movement blocks. We are
> just going to hope we get one good run when it doesn’t skip blocks.
> The overall program is good and the kids have thought it through.
> I have no idea why it is skipping blocks and haven’t found a soluti
> on. If anyone finds a solution please post it.
>
> Rusty West
> Team 350
> VDOT BOTS
>
> From: First Lego League in Virginia and DC [mailto:VADCFLL-L@it-
> listserv1.jmu.edu] On Behalf Of Sonya Shaver
> Sent: Tuesday, November 03, 2009 2:36 PM
> To: [log in to unmask]
> Subject: Re: [VADCFLL-L] Programming/brick problem
>
> I'm sorry Sherene. I don't have any answers, just to say that our
> robot is doing weird things at times too. Like we will run a
> certain program and then it just starts skipping steps that are in
> the program, for seemingly no reason. It will do that three or four
> times, then suddenly start working again. I have no idea. We are
> getting it to work most of the time though. It sounds like what you
> are going through is really frustrating! I would encourage you to
> not pull the plug on your team competing though. That seems unfair
> to them with all their hard work. The robot game is only 25% of
> their total score. They will still be able to talk to the judges
> about their robot design and programming, even if their robot does
> nothing on the actual table. And they will give their presentation,
> and show their teamwork! Good luck, and I hope someone can answer
> here!
>
> Sonya in Harrisonburg
>
>
> On Tue, Nov 3, 2009 at 1:45 PM, Sherene Silverberg <[log in to unmask]>
> wrote:
> We're having a huge problem with our robot.
>
> the programs are not downloading from the computer to the brick
> properly. Despite the message on the computer saying it the
> program has uploaded, it is hit or miss if it does.
>
> We're running firmware version 1.28 on Mac OS 10.5.8.
>
> I've done the Mac OS 10.5 firmware fix as indicated here
> http://mindstorms.lego.com/support/updates/.
>
> The programs never run the same way twice. It's like the NXT brick
> has a life of its own. We deleted all the programs on the brick
> and then downloaded just one of the programs. When we ran the
> program, it bore no resemblance to the one we uploaded. Rather, it
> looked like another one on the computer that goes by a different name.
>
> I thought to try to reset the brick but for the life of me I cannot
> find any reset button. Apparently "The hardware reset button is
> located within the LEGO TECHNIC hole below the USB connector on the
> NXT brick.".
>
> For the life of me, I cannot find this hole.
>
> If I can't find a solution ASAP, I am going to pull the plug on the
> team competing. We cannot waste any more hours trying to fix buggy
> Lego equipment.
>
> Can anyone help me? I'm at the end of my tether.
>
> thanks
>
> Sherene
>
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