/*
 * adc.c
 *
 * Created: 20.02.2019 20:46:32
 *  Author: jens
 */ 

#include <avr/io.h>
#include "adc.h"

void adc_init()
{
	PRR &= ~(1 << PRADC);
	ADCSRA |= (1 << ADEN) | 7;
}

void adc_start_conversion(int ch)
{
	ADMUX = (ADMUX & 0xF0) | (ch & 0x0F) | (1 << REFS0);
	ADCSRA |= (1 << ADSC) | (1 << ADIE);
}

int adc_is_fininshed()
{
	return (int)(0 == (ADCSRA & (1 << ADSC)));
}