Sylvia Dokua Kwakye wrote:
>
> Hello,
>             Sorry for the panicked title but I do help quickly. I am trying
> to use timer1 to wake the PIC up from sleep after 1 minute. I am using the
> PCM C compiler.The code  compiles fine, but on the PIC, pin b0 never comes
> on. (Timer1 has 32KHz external crystal osc.).If you are familiar with PCM's
> compiler could you please take a look and help me out.Maybe, a fresh pair
> of eyes will see something that I missed. Needless to say, I have been
> staring at it for a while and have not been able to figure out the problem.
>
> #include <16C73.H>
> #use Delay(Clock=4000000)
> #define max_count 4;
> byte the_count;
>
> #INT_TIMER1
> wake_1(){
>          if( -- the_count != 0){

Try rewritting this as follows:

        --the_count;
        if(the_count != 0){

Sometimes it is best not to combine too many things on one line. The
only
thing I don't like is the space between the predecrement and the
the_code.

>                 sleep();
>          }
>           else{
>               output_high(pin_b0)
>               the_count = max_count;
>     }
> }
>
> main(){
>         the_count = max_count;
>         output_high(pin_b7);
>         set_timer1(0);
>         setup_timer_1(T1_EXTERNAL | T1_DIV_BY_8);
>         enable_interrupts(INT_TIMER1);
>         enable_interrupts(GLOBAL);
>         while(true);
> }

--
Neil Cherry     http://home.att.net/~ncherry    ncherry@worldnet.att.net