TODD wrote

> Greetings all,
>
> Our ICEPIC II in-circuit emulator seems to have developed a new "feature".
> RB5 seems to not be able to drive high or low.  If externally pulled high,
> the emulator software indicates the pin is high, otherwise when a high is
> written the emulator software still says the pin is low.  Pulled high with a
> 4.7K, it cannot pull itse;f low, either.  I suspect static damage to the the
> bondout chip, PIC16C01-ME.  Does anyone have any experience in repairing
> ICEPIC daughterboards?  The system diagnostics program tests all OK, so I
> suspect it is the output driver of this chip.  Is Microchip the only source
> for 16C01-ME's?
>

Our ICEPIC II has low level clock noise on some of the i/o lines,
traced it back to a bondout chip but since we were in the process of
ordering an MPLAB-ICE we have just left it, causes a hassle if one
buffers the output, the effect gets amplified and starts becoming
'valid' digital levels.
So we didn't fix it, just coped with it.


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Lance Allen
Technical Officer
Uni of Auckland
Psych Dept
New Zealand
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