Subject:
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RE: Wot no RCX power connector?
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 19 Oct 1999 16:12:20 GMT
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Viewed:
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753 times
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> Ralph Hempel <rhempel@bmts.com> wrote:
> > I'm more concerned with any changes to the ROM. Perhaps Kekoa can shed
> > some light on this if someone was to ship him a new brick? Or maybe the
> > new bricks will be at Mindfest!!!
> As for the internals, I will try to remember to bring my tool set, etc. to
> MindFest. We are bound to see one of these new ones lying around, and if
> it's okay with whoever owns it, we can take a peek inside and compare to
> the original. Or, somebody with one of the new ones could just
> disassemble
> that and report on its contents by comparing to the pictures online.
I've read that the end where the power connector was is "thinner" which
is OK since the connector was mounted on the component side and would have
added to the hight required. The "smoothing caps" could be eliminated
in a battery only design, which would make that end of things thinner too.
Now, resetting the new RIS for those of us who can't write correct
replacement
firmware every time is going to be a pain. And so will designing robots so
that
the RCX can be easily removed from the platform to change batteries.
I'll bet some enterprising LUGNUT will be able to come up with a battery
eliminator. In fact, I have one for my RCX tower which is just an old
9V snap connector on wires from some long-dead toy and a piece of
anti-static
foam cut in the shape of a 9V battery. There is a clever arrangement of
clips and wires which run the voltage through the battery chain, but only
the
extreme ends of the battery chain go into the RCX.
I'll bet that more RCX's will be ruined by leaky batteries though...
> Of specific interested related to the ROM are the version numbers
> on the H8
> processor. I'd also be interested in seeing the board version number, as
> I'm curious how many revs they tried before releasing the new unit.
This WOULD be interesting. I think you mean the mask number to see if
they fixed anything in the ROM. The CPU number should stay the same.
Actually, there's a ton of space left in the ROM, I wonder if they ADDED
anything useful, like a real OS kernel :-)
Cheers,
Ralph Hempel - P.Eng
--------------------------------------------------------
Check out pbFORTH for LEGO Mindstorms at:
<http://www.hempeldesigngroup.com/lego/pbFORTH>
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Reply to: rhempel at bmts dot com
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Message has 1 Reply:
 | | RE: Wot no RCX power connector?
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| (...) I don't think so - it looks the same shape as the pictures of RIS 1.0 RCXs I've seen. I doubt they would change the external shape as it would cause problems with plans in expansion kits etc. I expect there's just a lot of empty space inside. (25 years ago, 19-Oct-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: Wot no RCX power connector?
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| (...) I doubt there will be significant changes to the ROM. For starters, if somebody has both an old and a new RCX, try downloading the old firmware into the new RCX. If it works, the ROM interface is the same. If the ROM interface is the same, it (...) (25 years ago, 19-Oct-99, to lugnet.robotics)
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