i2c.h

ds1307 for avr (interrupt)

#ifndef _I2C_H_
#define _I2C_H_

#include <avr/io.h>
#include <avr/interrupt.h>
#include <inttypes.h>
#include <util/twi.h>
#include <avr/sleep.h>

#define I2C_SET_STOP	0x94
#define I2C_SET_STARTI 	0xA5
#define I2C_EXECUTE_AI	0xC5
#define I2C_EXECUTE_NI	0x85

#define I2C_READ		0x00
#define I2C_WRITE		0x01
#define I2C_SETUP		0x02
#define I2C_RESERVED	0x03
#define I2C_BUSY		0x04
#define DS1307_DATE		0x08

void i2c_init();

#endif // _I2C_H_