Hi,

> Aha, now we have a name for it.  Glitches are going to be a part of the
> environment this circuit has to run in, so decoupling them at every
> opportunity is my only hope.  I had no idea a PIC could reset
incompletely.

    Almost any modern complex digital logic can reset incompletely ! It does
very weird things to the sequencer circuits and state machines.

    I always try to supress as much of the noise as possible at the origin.
After that find ways to isolate your poor microprocessor and electronics and
just than use the other "ways" to make the noise not affect your circuit.
Usually things get worse when the equipament gets older and there is no
warrant that they will keep working if they are too close to the limits.

    There is a great book about design that I always read when I have any
free time that I recommend to anyone that designs real products. It is full
of insights of how do do things work the right way all the time. The name is
"The Circuit Designer's Companion" By Tim Williams. You should take a look
at it.

Best regards,
Alexandre Guimaraes

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