>This is a dirty PIC secret.  If the power doesn't rise in the usual way
>(i.e. go rapidly and monotonically from 0 to 5V), some internal nodes in
>the PIC can  latch up.  The only cure is to turn the power off and back
>on, even a MCLR reset won't clear it.  Microchip should wire MCLR to all
>these nodes in future PIC chips so they can be reset.
What's the usual strategy in a real product?

Like, for instance, let's say I have a "friend" who's designing a battery
powered PIC-based product with a plain vanilla DC-DC boost converter...is
it a good idea to include some kind of auto-reset when the power comes up?

Purely theoretical, of course :-)

Dave Johnson