Hey,

Not entirely relevent, but I thought I'd piggyback on this post - 

I already have 8 LEDs attached to portb4:7 and porta0:3.  I was
wondering if I can use the PWM to fade the LEDs without moving them to
a different port.  I am using the PIC18F1320.  How many pins can it
support PWM on?  Which pins?

On 5/16/05, Jan-Erik Soderholm <jan-erik.soderholm@telia.com> wrote:
> Jan-Erik Soderholm wrote :
> 
> > Now, just made a few additinal test...
> > If I added a (dummy) assignment to T2CON *before* the
> > call to PWM_Init, the source built OK !!
> >
> > OK, fine. Now on to test this on real hardware... :-)
> 
> Back from the tests...
> 
> After a few minor changes to the PWM example code
> in the 16F877a directory, I now have a LED fading up and
> down nicely connected to a 12F683 using the hardware
> CCP/PWM module and the PWM library in mikroPascal.
> 
> Hep !!
> 
> The code looks like this :
> 
> program lhsim_01;
> 
> var j : byte;
> var i : byte;
> 
> begin
>   j      := 1;                  //  initial value for j
>   i      := 1;                  // initial value for i
>   TRISIO := 0;                  // designate gpio pins as output
>   PWM_Init(5000);               // initialize PWM module (5 KHz)
>   PWM_start;                    // start PWM
>   while true do                 // endless loop
>     begin
>       delay_ms(1);              // wait 1 ms
>       j := j+i;                 // increment j
>       PWM_change_duty(j);       // set new duty ratio (0=0%, 255=100%)
>       if j = 200 then i := -1;  // switch to fading down
>       if j = 1 then i := 1;     // switch to fading up
>     end;
> end.
> 
> 
> Regards,
> Jan-Erik.
> 
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