Subject:
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Re: Dead HB
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Thu, 22 Oct 1998 11:51:57 GMT
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Original-From:
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Wong Sy Ming <siming@singnet*Spamcake*.com.sg>
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Reply-To:
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siming@singnet.com.sg(avoidspam)
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Viewed:
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4491 times
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Well maybe you should try replacing the HC11 for a start.. These things tend
to spoil easily and for no apparent reason.... :( (or is it just bad luck?)
That's funny, you shorted out something and it still can download?
Maybe you should also change the RAM chip for good measure.
Anyway does anyone know if I can use a NVRAM module (Dallas DS1230) in place
of the SRAM now so I don't have to use a battery just to keep the RAM
contents?
Mark Limb wrote:
> Hi All,
> While I was building my sumo robot I managed to short a wire in my HB.
> I put a wire that was connected to a multimeter and also connected to
> another part of the robot, into a digital sensor input, sparks came out
> and it smelt like burnt electronics. I checked over the board and there
> was no physical damage that I could see. I downloaded IC and when I
> reset it didn't say "Welcome to interactive c blah blah blah", like it
> usually does, the LCD just stayed the same, all full bars on top row and
> all clear on the bottom. There is obviously something wrong and I was
> wondering if anyone may know of any quick tests or fixes for this sort
> of problem. Thanks for any help
>
> Joshua Wherrett
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Message has 1 Reply:
 | | RE: Dead HB
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| (...) I´m using that nvrmas on HB and work excellent. You simply put the memory and disconnect the external battery! German Gentile (28 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | Dead HB
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| Hi All, While I was building my sumo robot I managed to short a wire in my HB. I put a wire that was connected to a multimeter and also connected to another part of the robot, into a digital sensor input, sparks came out and it smelt like burnt (...) (28 years ago, 22-Oct-98, to lugnet.robotics.handyboard)
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