Hi all,
>From looking at the datasheet for a 16C73A it looks like there is no
reliable way to tell if a reset occurred from a WDT reset or a MCLR
reset.  It appears that NOT_TO = 0 is intended to indicate that a WDT
reset occurred, however since NOT_TO is undefined after a MCLR "Reset
during normal operation" a test of NOT_TO is not a reliable way to
differentiate between a WDT reset and, in my case, a reset switch reset.

I'd like to set up the box I am building so that if a WDT reset occurs I
can blink an LED with a pattern indicating where the code was before the
reset.  The user would then hit a reset switch attached to MCLR to
restart the code.  I was also going to use the reset as a general
purpose abort that would clean up the outputs and halt the code.  So I
guess I have two problems, I can't tell for sure if the reset occurred
from the WDT or from a user hitting the reset switch (MCLR).

Any ideas beyond not using MCLR to reset and instead just putting it on
a port that I poll (or PORTB interrupt)?

Thanks,
Eric