At 10:04 PM 20/06/01 -0500, you wrote:
>Absolutely mind boggling.  I have a chunk of code causing some kind of
>software reset.  The WDT is disabled, in fact, all interrupts are disabled
>in this program in it's entirety.  The kicker is, this code is NOT being
>executed when the reset occurs, it is tied to one button, the other button I
>push works fine but randomly causes a reset...  when I comment out the code,
>it works fine (of course it doesn't do what I need though.)
>
>Here's the snippet...  It's an EEPROM data write.
>
>   ; ** EEPROM DATA STORAGE
>   BANK0
>   movf DEVSTATUS,w                              ; load data
>   bcf PIR2,EEIF                                 ; clear complete flag
> just in case
>   BANK2                                         ; go to bank2
>   movwf EEDATA                                  ; set DATA
>   movlw 0                                               ; load address
>   movwf EEADR                                   ; set ADDRESS
>   BANK3                                         ; go to bank3
>   bcf EECON1,EEPGD                              ; DATA memory
>   bsf EECON1,WREN                                       ; enable writes
>;  movlw 0x55                                   ; * required
>;  movwf EECON2                                 ; * eeprom
>;  movlw 0xAA                                   ; * writing
>;  movwf EECON2                                 ; * crap
>   bsf EECON1,WR                                 ; initiate write
>;  bcf EECON1,WREN                              ; disable writes
>   BANK0
>;  btfss PIR2,EEIF                              ; wait til the
>;    goto $-1                                   ; writing is complete
>   bcf PIR2,EEIF                                 ; clear complete flag
>   return
>
>if I uncomment any of those lines in ANY combination, I get a reset after a
>few presses on my button, which DOES NOT execute this code :( :( :(   It's
>almost as thought just having this code in makes it act erratic.  This is
>reproducable on 2 different chips, I'm out of ideas and frustrated...

I haven't been following this one but some idea's. Does having the extra line
push a table over a page boundary? Have you checked the bank macro's?
What happens if you substitute a NOP for each line commented out?
Regards...

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