i2c.c

ds1307 for avr (interrupt)

#include "i2c.h"
#include "ds1307.h"


#define I2C_RATE_100  	( F_CPU/100000-16 ) / 2 + 1 // 29


volatile int8_t dt_ptr;
volatile uint8_t tmp_datetime[7];


ISR(TWI_vect)
{
	static uint8_t i2c_step = 0;

	// 钺疣犷蜿