/*
 * ATtiny24A-Test.c
 *
 * Created: 27.03.2021 13:33:20
 * Author : Micha
 */

#define F_CPU 8000000UL
#define I2C_FAST_MODE

#include <avr/io.h>
#include <avr/interrupt.h>

#include "USI_I2C_Master.c"

volatile int16_t mscounter = 0;
int16_t lastSend = 0;

ISR(TIM1_COMPA_vect){
	++mscounter;
}

int main(void){
    DDRA = 0;
	PORTA = 0xFF;
	DDRB = 0x01;
	PORTB = 0xFE;

	I2CinitM();

	//Timer1 mscounter
	TCCR1A = 0;
	TCCR1B = 0;
	TCCR1C = 0;
	//CTC OCR1A
	TCCR1B |= (1<<WGM12);
	//Prescaler = 64
	TCCR1B |= (1<<CS11) | (1<<CS10);
	//Zählen bis 125 -> 1kHz COMPA_vect
	OCR1A = 125;

	TIMSK1 = 0;
	TIMSK1 |= (1<<OCIE1A);

	sei();

	uint8_t i = 0;

    while (1){
		if(mscounter - lastSend > 1000){
			lastSend = mscounter;
			I2Cstart(100, 0);
			I2Cwrite(&i, 1);
			I2Cstop();
			++i;
		}
    }
}