/*
 * Mega328P_SPI_MCP4922.c
 *
 * Created: 08.01.2019 22:27:33
 * Author : Paul
 */ 
#define F_CPU 8000000UL
#define LM75  0x4F     // device address of EEPROM 24C02, see datasheet


#include	<util/delay.h>
#include	<avr/io.h>	//AVR Register und Konstantendefinitionen
#include	<avr/interrupt.h> //AVR Interrupt Vektoren
#include	<stdlib.h>
#include	<inttypes.h>
#include 	<avr/sleep.h>
#include	<avr/wdt.h>
#include 	<stdint.h>
#include 	<stdfix.h>
#include	<util/twi.h>
#include	"uart.h"
#include	<avr/pgmspace.h>
#include	<stdio.h>
#include	<inttypes.h>
#include	"i2cmaster.h"



#define	PRINT(string, ...)		printf_P(PSTR(string), ##__VA_ARGS__)


static int putchar__(char c, FILE *stream) {
	uart_putc(c);
	return 0;
}

static FILE mystdout = FDEV_SETUP_STREAM(putchar__, 0, _FDEV_SETUP_WRITE);


int main(void)
{


	uart_init(UART_BAUD_SELECT(9600UL, F_CPU));

	stdout = &mystdout;
	sei() ;
	
	PRINT("Start Main\n\n");

	i2c_init();                                // init I2C interface
	_delay_ms(300);
	unsigned char tempHigh;
	unsigned char tempLow;
    while (1) 
    {		
		PRINT("Start while\n\n");
		
		
	    i2c_start_wait(LM75+I2C_WRITE);				// set device address and write mode
		PRINT("5\n\n");
	    i2c_write(0x00);							// write address 0 = Temp Register
		PRINT("6\n\n");
	    i2c_rep_start(LM75+I2C_READ);				// set device address and read mode
		PRINT("7\n\n");
		tempHigh = i2c_readAck();						// read one byte form address 0H
	    tempLow = i2c_readNak();						// read one byte from address 0L
		PRINT("8\n\n");
	    i2c_stop();
		
		PRINT("Register: %d\n", tempHigh);		
		PRINT("Register: %d\n", tempLow);

		PRINT("Alive\n\n");
			_delay_ms(1000);
			
    }
}