Subject:
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Re: Handyboard assembly
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Thu, 7 Mar 1996 17:30:40 GMT
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Original-From:
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Fred G. Martin <fredm@media.mit.edu*spamcake*>
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Viewed:
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2054 times
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Ah, the classic "I built it and it doesn't work" story.
Did you follow the incremental building instructions? I take it the
answer is no.
My suggestion is to pull all of the chips, and run through the series
of incremental tests in the building instructions in order to isolate
the problem. Also, I am a little puzzled by your statement "the board
checks out OK"; exactly what part of the board does check out? Other
than the oscillator.
-Fred
--
This message was composed using Articulate Systems' PowerSecretary,
a Macintosh-based speech-to-text dictation system.
Please forgive any sloppiness in the formatting. Thanks. -Fred
In your message you said:
> We have assembled our fifth handyboard and have run into the following
> problem. (The other four boards went smoothly). The command dl pcode_hb.s19
> downloads fine just as it did on the four other boards that we have built.
>
> However, when I power cycle the board, I do not get the familiar Interactive
> C and the heart beat monitor. The LCD panel is dim, just as it was in the
> bootstrap mode and the power light (green) is on.
>
> The board checks out OK, the oscillator is working fine.
>
> When I hookup other handyboards, everyting goes smoothly with the same
> charger and wires that I have setup.
>
> Does anyone have suggestions how I might proceed further in troubleshooting
> this problem?
>
> Thanks for your time.
>
>
> Ram
> -----------------------------------------------------------------Dr. M. K.
> Ramasubramanian
> Assistant Professor
> Department of Mechanical & Aerospace Engineering
> North Carolina State University
> Box 7910
> Raleigh, NC 27695-7910
>
> (919)515-5268
> (919)515-7968 (Fax)
> rammk@eos.ncsu.edu
>
>
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Message is in Reply To:
 | | Handyboard assembly
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| We have assembled our fifth handyboard and have run into the following problem. (The other four boards went smoothly). The command dl pcode_hb.s19 downloads fine just as it did on the four other boards that we have built. However, when I power cycle (...) (29 years ago, 7-Mar-96, to lugnet.robotics.handyboard)
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