// Senden der Startbedingung (MASTER -> SLAVE)
void twi_start(void)
{
	TWCR =  (1<<TWINT)|(1<<TWSTA) | (1<<TWEN);
	
	
	while(!(TWCR & (1<<TWINT)))
	{		
	}

	
	
}

// Senden der Slave-Adresse (MASTER -> Slave)
void twi_addr(uint8_t sla_x)
{
	TWDR = sla_x;
	TWCR = (1<<TWINT) | (1<<TWEN);

	while(!(TWCR & (1<<TWINT)))
	{		
		
	}

}

void twi_start_mit_addr(uint8_t addr)
{
	
	twi_start();
	
	twi_addr(addr);
}

void twi_send(uint8_t data)
{
	TWDR = data;
	TWCR = (1<<TWINT) | (1<<TWEN);
	while(!(TWCR & (1<<TWINT)));
}

uint8_t twi_receive(uint8_t ea)
{
	TWCR = (1<<TWINT) | (1<<TWEN) | (ea<<TWEA);
	while(!(TWCR & (1<<TWINT)));
	
	return TWDR;
}


void twi_stop(void)
{
	TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
}


uint8_t bin2bcd(uint8_t c)
{
 return ((c/10)<<4)+c%10;
}

uint8_t bcd2bin(uint8_t c)
{
 return ((c>>1)&0x78)+((c>>3)&0x1E)+(c&0x0F);
}



int main(void)
{
	uint8_t a,b,c,d,e,f;
	LCD_Init();
	TWBR = 32;

	
void SetRTC(uint8_t hour, uint8_t min, uint8_t sec)
{
	twi_send(bin2bcd(sec));		
	twi_send(bin2bcd(min));	
	twi_send(bin2bcd(hour));
}


while(1)
{
	

	

	
	twi_start_mit_addr(0xd0);
	twi_send(0x00);
//	SetRTC(16,8,1);
	
	twi_start_mit_addr(0xd1);
	

	a= twi_receive(1);
	b= twi_receive(1);
	c= twi_receive(1);
	d= twi_receive(1);
	e= twi_receive(1);
	f= twi_receive(0);

	twi_stop();
	CurserHome();
	Write_Int(bcd2bin(c));
	Write_String(":");
	Write_Int(bcd2bin(b));
	Write_String(":");
	Write_Int(bcd2bin(a));
	/*
		Write_String(":");
	Write_Int(bcd2bin(d));

		Write_String(".");
	Write_Int(bcd2bin(e));

		Write_String(".");
	Write_Int(bcd2bin(f));
*/
		
_delay_ms(400);
}

	
	



	
}