Nope, that doesn't seem to be it.  I added the
following code to the end of all places where the
EEPROM is written to, and it always ends up in a WDT
time-out.

        btfss   PIR1, EEIF
        goto    $-1
        bcf     PIR1, EEIF

I think this may not have been working because it is
an interrupt flag, and I have all interrupts disabled,
therefor the flag may be inactive.  And if clearing
the EEIF flag was such an important part in properly
writing to the EEPROM I would like to think that more
mention to it would have been made than in that small
section of 13.2.

--Nick


--- Bob Barr <bbarr@CALIFORNIA.COM> wrote:
> On Sat, 16 Feb 2002 16:54:13 -0800, Nick Masluk
> wrote:
>
> >Below is the code I am using on a PIC16F627 to
> clear
> >the EEPROM from address 0x000 to 0x07E (0x07F
> stores a
> >variable that is not to be deleted).  Sometimes it
> >works, sometimes it doesn't.  When the code doesn't
> >work, the loop is still running, it just doesn't
> exit
> >it, because no WDT reset ever occurs.  The PIC is
> >running 4MHz INTRC oscillator I/O function, and all
> >interrupts are disabled.
>
> Check datasheet DS40300B, section 13.2
>
> I think the problem is that you aren't checkimg bit
> EEIF in register
> PIR1 to ensure that the previous write is complete
> before you write
> again. Note that this bit must be cleared by your
> code before you use
> it again to check for completion of the next write.
>
> Regards, Bob
>
> --
> http://www.piclist.com hint: PICList Posts must
> start with ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other
> [BUY]:,[AD]: ->Ads
>
>


__________________________________________________
Do You Yahoo!?
Yahoo! Sports - Coverage of the 2002 Olympic Games
http://sports.yahoo.com

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads