ckchan,

You also need to initialize the A/D converter.
Try this:

MAIN
          clrf    PORTD                   ; initialize port d
          bcf       ADCON0,0              ;Turn A/D module OFF!!
          bsf     STATUS,RP0              ; select bank
        movlw   B'00000000'             ; set port d as output pin
        movwf   TRISD                   ;
        movlw   b'00000110'    
          movwf   ADCON1                          ;All A/D channels Digital I/O!!       
        bcf     STATUS,RP0              ; de-select bank
        movlw   0H                      ; default low to port d
        movwf   PORTD                   ;
;
Then continue on doing whatever you were doing.
Hope this helps!

Best regards,
Steve

Steven Kosmerchock
Father/Student/Engineering Technician
www.geocities.com/researchtriangle/lab/6584

"Great spirits have always encountered violent
oppposition from mediocre minds."--A.Einstein   

-----Original Message-----
From: ckchan [mailto:ckchan4@PC.JARING.MY]
Sent: Tuesday, March 28, 2000 8:02 AM
To: PICLIST@MITVMA.MIT.EDU
Subject: help on PIC16F874

Greetings,

i really need some help here. been debuging for 2 days ! :O please tell
me what's wrong with this short code. it's to make a LED blink. that's
all. i tried the delay routine on PIC16F84, it's working. the LED blink
! but not with PICF874. The LED will ON permenantly. any configuration i
missed out ? Thanks !

regards,
ckchan