Arduino Mega 2560 und 74HC595 per SPI

#include <SPI.h>

#define latch_pin 4

#define blank_pin 5

////Pin connected to DS of 74HC595

#define data_pin 51

//Pin connected to SH_CP of 74HC595

#define clock_pin 52

void setup() {

SPI.setBitOrder(MSBFIRST);//Most Significant Bit First

SPI.setDataMode(SPI_MODE0);// Mode 0 Rising edge of data, keep clock low

SPI.setClockDivider(SPI_CLOCK_DIV2);//Run the data in at 16MHz/2 - 8MHz

Serial.begin(115200);// if you need it?

noInterrupts();// kill interrupts until everybody is set up

  //set pins to output because they are addressed in the main loop

  pinMode(latch_pin, OUTPUT);

  pinMode(clock_pin, OUTPUT);

  pinMode(data_pin, OUTPUT);

  pinMode(blank_pin, OUTPUT);

  SPI.begin();

  interrupts();//let the show begin, this lets the multiplexing start

}

void loop() {

 LEDTestSPI();

}

void LEDTestSPI() {

  PORTD |= 1<<blank_pin;

  Serial.println("Blank Pin HIGH");

int LED0 = B00000000;

int LED1 = B10000000;

int LED2 = B01000000;

int LED3 = B00100000;

int LED4 = B00010000;

int LED5 = B00001000;

int LED6 = B00000100;

int LED7 = B00000010;

int LED8 = B00000001;

int LED9 = B11111111;

int LED10= B10101010;

int LED11= B01010101;

/*

int test =000000001010101011111111;

SPI.transfer(test);

Serial.println(test);

*/

    SPI.transfer(LED0);

    SPI.transfer(LED0);

    SPI.transfer(LED0);

    SPI.transfer(LED0);

    SPI.transfer(LED0);

    SPI.transfer(LED0);

    SPI.transfer(LED0);

    SPI.transfer(LED11, BIN);

    SPI.transfer(LED9, BIN);  //Anoden

    Serial.print(LED11, BIN);

    Serial.println(LED9, BIN);

    //return the latch pin high to signal chip that it

    //no longer needs to listen for information

    PORTD |= 1<<latch_pin;//Latch pin HIGH

    Serial.println("Latch Pin HIGH");

    PORTD &= ~(1<<blank_pin);//Blank pin LOW to turn on the LEDs with the new dataO

    Serial.println("Latch Pin LOW");

 // delay(50);

}