Thanks for the input, but I don't seem to have made my problem clear.

 Just to clarify I'm not trying to differentiate between WD Reset and other
resets.

There are two scenarios:

a) A watchdog reset has occurred during normal operation (so we have
prevented microcontroller lockup... what the WD is for)

b) I have caused a watchdog timeout in order to measure the timeout so I can
calibrate my delays.

To identify (b) I set a bit in a file register (general purpose) but it
seems that the watchdog reset is causing is 'corrupting' this bit and I
cannot be sure of the status of my data register.
This worked fine on the F84, but the F873 doesn't seem to like it. I need a
way to identify what I was doing before the reset (I don't like to use
EEPROM because of the limited write/erase cycles and also the uncertainty of
how long a write cycle has taken).


----- Original Message -----
From: Olin Lathrop <olin_piclist@EMBEDINC.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Thursday, December 14, 2000 1:40 PM
Subject: Re: [PIC]: PIC16F87x Flash Memory after WD Reset


> >>
> In order to differentiate between this watchdog reset and a "genuine" rest
I
> would just set a bit and clear it once I had the value.
>
> This worked fine on the 16F84, but I recently tried a similar routine on
the
> 16F873 with no luck.
> <<
>
> Use the PCON register status bits.  That's what they are for.

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