//Atmega8 Вольтметр
#define  F_CPU 8000000
#include <avr/io.h>
#include <util/delay.h>
#include "n5110.h"

void presets()
{
	Lcd_init(); // Включаем дисплей
	ADCSRA |= (1<<ADEN)|(1<<ADPS2)|(1<<ADPS1)|(1<<ADPS0); // Включаем АЦП на 64кГц
	ADMUX |= (1<<REFS1)|(1<<REFS0); // Опорное напряжение внутреннее 2,56В
	
}

int readADC (unsigned int ch){
	unsigned char set_admux = ADMUX;
	set_admux &= ~((1<<MUX3) | (1<<MUX2) | (1<<MUX1) | (1<<MUX0));
	switch (ch)
	{
		case 1: set_admux |= ((0<<MUX3) | (0<<MUX2) | (0<<MUX1) | (1<<MUX0)); break;
		default:break;
	}
	ADMUX = set_admux;
	_delay_us(10);
	int tmp = 0;
	for (int i=0;i<32;i++)
	{
		ADCSRA |= (1<<ADSC);
		while((ADCSRA &(1<<ADSC)));
		tmp += ADC;
	}
	return tmp>>5;
	
	}


int main(void)
{
	presets();    
    while (1) 
    {
		Lcd_clear();
		Lcd_printf(0,0,FONT_1X, readADC(0), 1);
		Lcd_printf(0,1,FONT_1X, ((readADC(1)*2.56*(30/2.56))/1023), 1);
		Lcd_update();
		_delay_ms(200);
    }
}