From: "Jinx" <joecolquitt@clear.net.nz>
Sent: Tuesday, October 18, 2005 1:19 AM


>> Any ideas what could be going wrong here ?
>
> Is the power on the correct way ? (It happens)

Yep, first thing I checked :)

> Are there any floating inputs, by accident or oversight ?

There is one floating input.  The wire that shorted pin 16 to ground was 
supposed to be tying pin 17 (RA0, configured as an input) to ground through 
a 1k resistor.  The way the wire broke lose left pin 17 floating for sure, 
and might have grounded pin 16.

Leaving an input floating can fry the chip?

> Is there any other damage ? eg moisture, corrosion

There doesn't seem to be on the original chip, and the second one is brand 
new.

> Is there any possibility of voltages below 0V getting on to
> pins ? I've sent a couple to PIC heaven with sub-0V spikes.
> They also got very very hot before they, before they...sniff

I'm using an unregulated DC wall wart...so I don't think so, but I don't 
know 100%.

> Maybe someone should pop around and take your last
> PIC into protective custody.................

I guess my next order to glitchbuster will be a lot sooner than I thought :(

Jason 


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