#include <xc.h>
#include <stdio.h>
#pragma config FOSC = HS // Oscillator Selection bits
#pragma config WDTE = OFF // Watchdog Timer Enable bit
#pragma config PWRTE = OFF // Power-up Timer Enable bit
#pragma config CP = OFF // FLASH Program Memory Code Protection bit
#pragma config BOREN = OFF // Brown-out Reset Enable bit

#define LENGTH 8
unsigned int sum = 0; // Suma liczb 8-bitowych, zapisana w zmiennej 16-bitowej
unsigned char rest = 0;
unsigned int result = 0;
unsigned int read[LENGTH] = {};
unsigned char isFull = 0;
unsigned char index = 0;

void readData(void);
void processData(void);
void resetIndex(void);
void isReadFull(void);
void config_ad(void);
void ad_go(void);
void oblicz(void);
void print_results(void);

void main(void) {
    config_ad();
    
    while(1) { // g?ówna p?tla programu
        ad_go();
        
        readData();
        
        isReadFull();
        
        resetIndex();
        
        processData();
    }
    
    return;
}

void readData(void) {
    while(ADCON0bits.GO)
    {
        read[index] = ADRES;
        index++;
    }
}

void processData(void) {
    if(isFull) {
        oblicz();
        print_results();
        isFull = 0;
    }
}

void resetIndex(void) {
    if(index == LENGTH - 1) {
        index = 0;
    }
}

void isReadFull(void) {
    if(!isFull && index == LENGTH - 1) {
        isFull = 1;
    }
}

void config_ad(void) {
    ADCON0 = 0;
    ADCON1bits.PCFG = 0b100;
    ADCON0bits.ADON = 1;
}

void ad_go(void) {
    ADCON0bits.GO = 1;
}

void oblicz(void) {
    sum = 0;
            
    for(int i = 0; i < LENGTH; i++) {
        sum += read[i];
    }
            
    result = sum / LENGTH;
    rest = sum % LENGTH;
}
 
void print_results(void) {
    printf("result: %u", result);
    printf("rest: %u", rest);
}