I have read somewhere that a PIC can lock up (latch-up?) beyond reset,
needing a power-off to get back into a normal mode.
For my (in-circuit) 16c84 programmer I'm considering to include a
'power-short' feature for this kind of situation.
Questions:
- has anyone experienced such a lock-up where a reset is not sufficient
- what caused it
- does this situation ocur often enough to warrant a few extra components
in my programmer

regards,
Wouter.