hi!
yes, it«s diabled.
__CONFIG _CP_OFF & _WDT_OFF & _BODEN_ON &
_PWRTE_ON & _XT_OSC & _WRT_ENABLE_ON & _LVP_ON &
_DEBUG_OFF & _CPD_OFF
I am using an 16f877
//nabil
**********************************
On 21 Sep 99, at 13:12, Mark Willis wrote:

> Is your watchdog timer disabled, Nabil?  That'd be my first guess.  It
> might help others to know what processor & what your fuse settings, etc.
> are.  (Dashing past to check e-mail just now, need to run!)
>
>   Mark
>
> Nabil Benhadj wrote:
> >
> > hi!
> > this code locks it self somehow and keeps sending the same
> > result to the pc I4ve connected it to. "I4ve made the "start" loop to
> > check if the buttons on portB is pushed. If they are then it will store
> > portB in s_out and s_temp. s_temp is then used to se if the value
> > changes. as the program runs now it just keeps sending data as
> > long as the button is pushed. the data should be sent only once
> > when a button is pushed.
> > can someone solve this problem pleas, I am not getting
> > anywhere?????
> >
> > //nabil
> >
> > ps: there are a subrutine called send_data that "sends the data".
> > that part works. so I did not include that.
> > ;_____________________________________________
> > start
> >      bcf      STATUS,5          ;change to bank 0.
> >
> >     movf     PORTB,0           ;brings portB to W.
> >      sublw    0x00              ;compares W to zero.
> >      btfsc    STATUS,2          ;
> >      goto     start   ;if there is nothing on thegategoto"start"else
> > continue.
> >      movf     PORTB,0           ;brings portB to W.
> >      ;comf     PORTB,0           ;complement portB.
> >      movwf    s_out             ;store in s_out to send data.
> >      movwf    s_temp            ;store in s_temp to compare.
> >      call     send_data      ;goto sub, send_data that sends data in
> > s_out.
> >
> > temp
> >      movf     PORTB,0           ;brings portB to W.
> >      ;comf     PORTB,0          ;complement portB.
> >      subwf    s_temp,0          ;compare s_temp to portB.
> >      btfss    STATUS,2          ;if the value is the same on portB goto
> > "start" else continue.
> >      goto     start             ;start from the begining.
> >      goto     temp              ;loop until value changes in portB.
>