#include "SPISlave.h"
#include "head_oled_i2c.h"

static int index = 0;
static int arIndex = 0;
static char data[64];

ISR(SPI_STC_vect)
{
  char received = SPDR;
  data[index] = received;
  index++;
}

void setup()
{
  Serial.begin(9600);
  SPI_SlaveInit();
  initialization();
  
  Fill(0);
  update();
  
  Serial.println();
  Serial.println("Initialization ");
}

void loop() {
  if(PINB & (1 << 2)){
    if(index > 0){
      char sum = 0;
      sum = crc8(data, index-1);
      char last_1 = data[index - 1];

      if (last_1 == sum){
        SetCommand(data, index);

        index = 0;
        return;
      }else{
        index = 0;
      }
      
    }
  }
}