void DAC_initialisierung(void)
{
  
	schleife (0x0060);	//DAC aus Standby holen
	uart_putc('\n');
	uart_putc('\r');
	schleife (0x4110);	//DAC initialisieren
	uart_putc('\n');
	uart_putc('\r');
	schleife (0x4210);
	uart_putc('\n');
	uart_putc('\r');
	schleife (0x4310);
	uart_putc('\n');
	uart_putc('\r');
	schleife (0x4410);
	uart_putc('\n');
	uart_putc('\r');
	schleife (0x4510);
	uart_putc('\n');
	uart_putc('\r');
	schleife (0x4610);
	uart_putc('\n');
	uart_putc('\r');
	schleife (0x4710);
	uart_putc('\n');
	uart_putc('\r');
	schleife (0x4810);	//DAC*/
	uart_putc('\n');
	uart_putc('\r');
	
}





//-------------------
//DATENÜBERTRAGUNG
//-------------------


void schleife (int hexzahl)
{
 int k, l=0, m=1;
 
_delay_us(400);
PORTB |= (1 << PB2);	//LDAC high
PORTB &=~(1<<PB1);	//FSIN low
_delay_us(200);
 
 
 for(k=15;k>-1;k--){
	
	l=k;
	
	
	while(l){
		m = m*2;
		l--;
		}
	
	if (k==0){
		m=1;
		}
		

	if (hexzahl&m){
		PORTA |= (1 << PA0);   //Clock Signal
		_delay_us(100);
		
		PORTB |= (1 << PB0);
		
		PORTA &=~ (1 << PA0);
		_delay_us(300);	
		//_delay_us(100);
		//uart_putc('1');
		}
		
	else{
		PORTA |= (1 << PA0);   //Clock Signal
		_delay_us(100);
		
		PORTB &=~(1 << PB0);
		
		PORTA &=~ (1 << PA0);
		_delay_us(300);	
		//_delay_us(100);
		//uart_putc('0');
		}
		
		
	m=1;
	
	//delay_ms(1);
	/*PORTA |= (1 << PA0);   //Clock Signal
	_delay_us(100);
	PORTA &=~ (1 << PA0);
	_delay_us(100);	*/
}


_delay_us(500);
PORTB |= (1 << PB1);	//FSIN high
//_delay_us(100);
PORTB &=~(1 << PB2);	//LDAC low
_delay_us(100);
PORTB |= (1 << PB2);	//LDAC high
_delay_us(300);


}