Re: Failure of Pics.



Jamie wrote:

Tim Shoppa wrote:

I suspect that a ground opened up and the noise and hash on the other
lines got interpreted as programming commands.

Tim.

That's exactly the kind of thing I had in mind, or a power supply 'glitch' that
corrupts the internal memory.


We're using a DC-DC (isolated) .

Which is irrelevant. What's the power supplies behaviour wrt to input noise from
the slip rings and possible supply interruptions ? I'll bet no-one's looked at
it.


Think we may have it down to a static
build up due to the nature of the operation.

You're off on one of your wild wacky ideas now.

Graham

.

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