/*
 * I2C-Bus-Eingaenge-Ausgaenge-Analog.c
 *
 * Created: 29.12.2022 11:28:02
 * Author : Torsten
 */ 


#include <avr/interrupt.h>
#include <util/delay.h>

#include "I2C-Master/I2C_Master.h"
#include "var.h"

#define F_CPU 8000000UL
#define F_SCL 8000000UL

//***************************************************************
uint16_t overflow =0;
uint16_t LED_Freq = 3125; //3125;

ISR(TIMER0_OVF_vect)
{
	if (overflow <= LED_Freq)
	{
		overflow ++;
	}
	else
	{
		PORTA ^= (1<<PA4);	
		overflow =0;
	}
}
//*******************************************************************

int main(void)
{
	uint8_t Data = 0;
	
	//Ausgangsport A setzten
	DDRA =0xFF;
//******** Timer 0 für Funktion des IC's Laufes**********************
	TIMSK |= (1<<TOIE0);	//Overflow Interrupt aktivieren
	TCCR0 |= (1<<CS01);		// Prescaler auf 1 setzen, Takt = 8MHz
	sei();	//änderung	
//*******************************************************************		
		
		
	I2C_Init(F_SCL);
		
    /* Replace with your application code */
	
	I2C_Start_Wait(Ausgaenge, I2C_WRITE);
	I2C_Write(0x00);
	I2C_Stop();
	
	_delay_ms(5000);
			
    while (1) 
    {
		I2C_Start_Wait(Eingaenge, I2C_READ);
		Data = I2C_ReadNack();
		I2C_Stop();
		
		_delay_ms(1000);
		
		I2C_Start_Wait(Ausgaenge, I2C_WRITE);
		I2C_Write(Data);
		I2C_Stop();
		
		_delay_ms(1000);
		
    }
}