#INCLUDE <16f628A.h>
#FUSES NOWDT
#FUSES XT
#FUSES NOPUT
#FUSES NOLVP
#FUSES NOCPD
#FUSES NOMCLR
#FUSES PROTECT
#USE DELAY(clock=4000000)

#USE FAST_IO(B)

/*************************Todos os contadores**********************************/
/******************************************************************************/
int32 cont_1;
int32 cont_2;
int32 cont_3;
INT32 CONT_4;




/****************************interrupção******************************/
/******************************************************************************/
#INT_TIMER1
VOID frequencias(void)
   {
      set_timer1(65500-get_timer1());
      cont_1++;
      cont_2++;
      cont_3++;
   }


VOID main()
   {
      cont_1=0;
      cont_2=0;
      cont_3=0;
      set_tris_b(0b00100000);
      output_low(PIN_B3);
      setup_timer_1(T1_INTERNAL|T1_DIV_BY_2);
      set_timer1(65500);
      enable_interrupts(GLOBAL);
      disable_interrupts(INT_TIMER1);

      WHILE (true)
         {

         if(input(PIN_B5)==1)
            {
                  enable_interrupts(INT_TIMER1);

                  FUNÇÃO .......
            }
        
        }
   }