interrupts.c

/******************************************************************************/
/*Files to Include                                                            */
/******************************************************************************/

#if defined(__XC)
    #include <xc.h>         /* XC8 General Include File */
#elif defined(HI_TECH_C)
    #include <htc.h>        /* HiTech General Include File */
#endif

#include <stdint.h>         /* For uint8_t definition */
#include <stdbool.h>        /* For true/false definition */

#include "globals.h"
#include "delay.h"

/******************************************************************************/
/* Interrupt Routines                                                         */
/******************************************************************************/

/* Baseline devices don't have interrupts. Note that some PIC16's
 * are baseline devices.  Unfortunately the baseline detection macro is
 * _PIC12 */
#ifndef _PIC12

void interrupt isr(void)
{
    //if it's the AD interrupt
    if(ADIF==1)
    {
        //delay for some number of NOPs
        do_delay((ADRESH << 8) + ADRESL);

        //reset AD int flag
        ADIF = 0;

        //
        GO_DONE = 0;
    }
}
#endif

void do_delay(unsigned short int AVAL)
{
        //iterate between 0 and 1023 times
        for(unsigned short int i=0; i<AVAL; i++)
        {
            asm("NOP");
        }

        //toggle portb (make square wave)
        if(RB0==0)
        {
            RB0=1; //ternary operator
            RB1=1;
        }
        else
        {
            RB0=0;
            RB1=0;
        }
}