//Pins
# define SENS_CLK_PIN		(13) 				//	13=PB5 CLK
# define SENS_MISO_PIN		(12)				//	12=PB4 MISO
# define SENS_MOSI_PIN		(11)				//	11=PB3 MOSI

# define SENS_CS_PIN		( 0) 				
# define SENS_CS_ENABLE()	PORTD |=  (1<<0)	//	PB2->1
# define SENS_CS_DISABLE()	PORTD &= ~(1<<0)	//	PB2->0


char tmp[1];


void Sens_writeSPI(uint8_t data);
uint8_t Sens_readSPI(uint8_t data);
void RESET(void);


uint8_t Sens_readSPI(uint8_t data)
{	
	PORTD ^= ( 1 << PIND1 );		// TOGGLE LED---------------------------------------------------------------
	
	SPDR = data; 	//read-command
	while(!(SPSR & (1<<SPIF)));
	return SPDR;
}
		
		
void Sens_writeSPI(uint8_t data)
{	
	SPDR = data;	//write-command
	while(!(SPSR & (1<<SPIF)));
	return;
}

			
//------------ PROGRAMMABLAUF ----------
			
void loop()
{
while(1)
{
	uint8_t temp[23];
	
//	Register auslesen
	SPCR = 	SPCR | (1<<CPHA);
	
	PORTD &=~  (1<<PIND0);					//CS-Sensor Enable
	
	Sens_writeSPI(0x00 | 0x80);				// Erstes Register ab dem gelesen wird.  rw-bit = 1 
	
	temp[0]		= Sens_readSPI(0x00);		// Datenregister des Sensors
	temp[1]		= Sens_readSPI(0x01);		// Datenregister des Sensors
	temp[2]		= Sens_readSPI(0x02);		// Datenregister des Sensors
	temp[3]		= Sens_readSPI(0x03);		// Datenregister des Sensors
	temp[4]		= Sens_readSPI(0x04);		// Datenregister des Sensors
	temp[5]		= Sens_readSPI(0x05);		// Datenregister des Sensors
	temp[6]		= Sens_readSPI(0x06);		// Datenregister des Sensors
	temp[7]		= Sens_readSPI(0x07);		// Datenregister des Sensors
	temp[8]		= Sens_readSPI(0x08);		// Datenregister des Sensors
	temp[9]		= Sens_readSPI(0x09);		// Datenregister des Sensors
	temp[10]	= Sens_readSPI(0x0a);		// Datenregister des Sensors
	temp[11]	= Sens_readSPI(0x0b);		// Datenregister des Sensors
	temp[12]	= Sens_readSPI(0x0c);		// Datenregister des Sensors
	temp[13]	= Sens_readSPI(0x0d);		// Datenregister des Sensors
	temp[14]	= Sens_readSPI(0x0e);		// Datenregister des Sensors
	temp[15]	= Sens_readSPI(0x0f);		// Datenregister des Sensors
	temp[16]	= Sens_readSPI(0x10);		// Datenregister des Sensors
	temp[17]	= Sens_readSPI(0x11);		// Datenregister des Sensors
	temp[18]	= Sens_readSPI(0x12);		// Datenregister des Sensors
	temp[19]	= Sens_readSPI(0x13);		// Datenregister des Sensors
	temp[20]	= Sens_readSPI(0x14);		// Datenregister des Sensors
	temp[21]	= Sens_readSPI(0x15);		// Datenregister des Sensors

	PORTD |= (1<<PIND0);			//CS-Sensor Disable
	delay(1);
	
	SPCR = 	SPCR & ~(1<<CPHA);
	
	PORTD ^= ( 1 << PIND2 );		// TOGGLE LED---------------------------------------------------------------
		}
		
}


void RESET(void)
{
	PORTD &=~  (1<<PIND0);		//CS-Sensor Enable
	delay(10);
	Sens_writeSPI(0x0A | 0x2);
	delay(100);
	PORTD |= (1<<PIND0);
}
			
void setup()
{

	DDRD	|=	(1 << PIND1);				//OUTPUT FÜR LED1
	DDRD	|=	(1 << PIND2);				//OUTPUT FÜR LED2
	
	DDRD	|=	(1 << PIND0);				//CS-Sensor
				
	DDRB	|=	(1 << PINB2);				//	/SS		- OUTPUT
	DDRB	|=	(1 << PINB3);				//	MOSI	- OUTPUT
	DDRB	&=~	(1 << PINB4);				//	MISO	- INPUT
	PORTB	|=	(1 << PINB4);
	DDRB	|=	(1 << PINB5);				//	SKC		- OUTPUT
	
	// SPI Clock 16MHz/2
	SPCR = (1<<SPE) | (1<<MSTR); 			//enable SPI, Master, clk=Fcpu/4
	SPSR = (1<<SPI2X); 					//clk=Fcpu*2
	
	//INIT SENSOR
	PORTD &=~  (1<<PIND0);					//CS-Sensor Enable
	delay(10);
	Sens_writeSPI(0x15 & 0x7F);				// Erstes Register ab dem gelesen wird.  rw-bit = 1 
	Sens_writeSPI(0b10000000);	
	delay(100);
	PORTD |= (1<<PIND0);					//CS-Sensor Disable

}