/*
 * File:   lab4.c
 * Author: Aaron
 *
 * Created on February 28, 2017, 9:06 AM
 */

#include "xc.h"
_CONFIG1 (FWDTEN_OFF & JTAGEN_OFF)
_CONFIG2 (POSCMOD_NONE & OSCIOFNC_ON & FCKSM_CSDCMD & FNOSC_FRCPLL )


int adcvalue=0;
int value=0;
int t2=0;
void ADC_init(){
 //setup ADC configuration bits and TRISB

    AD1PCFG=0xFDFF;
    AD1CON1=0x20E6;
    AD1CON2=0;
    AD1CON3=0x0201;
    AD1CHS=0x0009;
    AD1CSSL=0x0000;
    TRISB=0x8000;

}

void setup(void){
    __builtin_write_OSCCONL(OSCCON & (~(1<<6))); // Release IOLOCK
    //RPOR3bits.RP7R = 0x12;      //RB7
    RPOR2bits.RP4R = 0x12;        //RB4
    __builtin_write_OSCCONL(OSCCON|(1<<6)); // Engage IOLOCK
}
void main(void) {               //10khz, 75% duty cycle

 ADC_init(); //initialize ADC

 //enable interrupt
 //clear interrupt flag
 IEC0bits.AD1IE = 1;
 IFS0bits.AD1IF = 0;
 AD1CON1bits.ADON = 1; //turn on ADC

 //init PWM
 OC1CON = 0; //Clear OC1CON1
 OC1R=800;
 OC1RS=600;
 //OC1R = 79;
 //OC1RS = 39;
 //OC1CON2 = 0x020C;  //Set value of OC1CON2
 OC1CON = 0x2000;
 OC1CONbits.OCM = 0x0006;
 //PR2=79;
 PR2=800;
 T2CONbits.TON = 0b1;  //Initiate Timer 2

 setup();

 while(1){
 }
}
void __attribute__ ((interrupt, no_auto_psv)) _ADC1Interrupt(void){
//Disable interrupt
//Clear flag

 IEC0bits.AD1IE = 0;
 IFS0bits.AD1IF = 0;
 //adcvalue = ADC1BUF0;

    // OC1R=adcvalue*78/1023;
     //LATB=adcvalue;

 IEC0bits.AD1IE = 1;
 IFS0bits.AD1IF = 0;

}
void __attribute__ ((interrupt,no_auto_psv)) _T2Interrupt(void){
    IEC0bits.T2IE=0;
    IFS0bits.T2IF=0;
    t2=2;


    IEC0bits.T2IE=1;
    IFS0bits.T2IF=0;

}