74HC595 array write

int latchPin = 8;
int clkPin = 12;
int dataPin = 11;

int dataArray[24] = {1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0};
int dataArray2[24] = {0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1};

void setup()
{
  Serial.begin(115200);
  pinMode(latchPin, OUTPUT);
  pinMode(dataPin, OUTPUT);
  pinMode(clkPin, OUTPUT);
}

void loop()
{
  zapisRegistr(latchPin, clkPin, dataPin, dataArray, 24);
  zapisRegistr(latchPin, clkPin, dataPin, dataArray, 24);
  delay(100);
  zapisRegistr(latchPin, clkPin, dataPin, dataArray2, 24);
  zapisRegistr(latchPin, clkPin, dataPin, dataArray2, 24);
  delay(100);

}

void zapisRegistr(int pLatch, int pClk, int pData, int dataIn[], int pocet)
{
  digitalWrite(pLatch, LOW);
  for(int i=0; i<pocet; i++) {
    digitalWrite(pData, dataIn[i]);
    delayMicroseconds(27);
    digitalWrite(pClk, HIGH);
    delayMicroseconds(23);
    digitalWrite(pClk, LOW);
  }
  digitalWrite(pLatch, HIGH);
}