Hi, mybe the problem is in startment of your program in the bit LVP.
I got it too and I did

__CONFIG _CP_OFF & _XT_OSC & _PWRTE_ON  & _WDT_OFF & _LVP_OFF

The default came with LVP_ON (Low voltage program). Tray to do it.

Regards
Anbar

-----Mensagem original-----
De: Lorick <lorick@AIR.ON.CA>
Para: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Data: Sexta-feira, 24 de Mar¨o de 2000 22:37
Assunto: PIC Looping when I don't have any loops?


>I did  a test program with the intent to take just one analog sample,
>display it, and end the whole program, but the pic keeps updating the
output
>LEDs as I change the analog input even though I only set the program to
just
>do one a/d conversion with no looping. This isn't making sense to me and I
>was wondering if anyone has an explanation.  The only way I can see it
>happening is if somehow the circuit is getting constantly turned off and on
>(reset) and it really would be doing just one sample, but doing it as many
>times as reset.   But I don't buy that.
>
>Here is the code
>
>         list p=16f876,R=DEC
>         include "p16f876.inc"
>          __CONFIG _CP_OFF & _XT_OSC & _PWRTE_ON  & _WDT_OFF
>
>         org 0x000
>
>         banksel PORTC
>         clrf PORTC
>         movlw B'01000001'     ;Fosc/8, A/D enabled
>         movwf ADCON0
>
>         banksel OPTION_REG
>         movlw B'10000111'     ;TMR0 prescaler, 1:256
>         movwf OPTION_REG
>         clrf TRISC                   ;PORTC all outputs
>         movlw B'00001110'     ;Left justify,1 analog channel
>         movwf ADCON1         ;VDD and VSS references
>         banksel PORTC
>         movlw B'11000001'     ;A/D ch 0 enabled
>         movwf ADCON0
>
>         bsf ADCON0,GO         ;Start A/D conversion
>Wait
>         btfss PIR1,ADIF ;Wait for conversion to complete
>         goto Wait
>
>         movf ADRESH,w
>         movwf PORTC
>         end