thanks Bruce,
I had an idea in the middle of the night that I tried, which seemed to work.
take a pin and use for an input push-button switch,
in a PICbasic program, test for sw push then do.........
asm
here nop
goto here
endasm
.....a dead end loop with no wdt-reset
the pic would re-start normal operation after a period and timed out with different settings of wdt timeout.
it would not be a bad reset type initiated by a push-button.
don
amgen