Dear PIC'ers;

I recently started using the '508 and I'm having problems with the sleep
mode. The program runs fine one time, but will not run after the chip goes
to sleep and (presumably) wakes up. Below is part of my code. What am I
doing wrong, or is there some problem or quirk with the '508, that I don't
know about? The code works fine if I just go to STRT and don't use the
sleep mode, but I don't get the battery power savings that the sleep mode
offers, which I need. I'm sure you understand that I can't publish the body
of the code, since it belongs to my employer.

Any help would be greatly appreciated.  TIA  Andrew Morris  :-)



;---------------------------------------------------------------------------
---------------

;      At blast time:
;      MCLRE = EXT
;      CP = OFF
;      WDT = ON
;      FOSC = INT

;---------------------------------------------------------------------------
---------------

       include c:\progra~1\mplab\P12c508.inc

       MOVWF     OSCCAL
       BTFSS     STATUS,3           ;Was reset due to sleep? Skip next line
if not
       GOTO      STRT

;      Initialize I/O ports

       MOVLW     INI_GPIO          ;Initialize io port
       MOVWF     GPIO
       MOVLW     CFG_GPIO          ;Select direction of GPIO bits
       TRIS      GPIO              ;Write selection to TRIS data direction
register
       CLRF      TMR0
       CLRWDT
       MOVLW     INI_WDT
       OPTION

STRT   BCF       GPIO,PD_EN_N      ;first lIne of code
.
.
.
body of code
.
.
.
SLEEP

END