#include<SPI.h>  
volatile byte Slavereceived;
//int SS = 10
int count = 0;

void setup() {
  // put your setup code here, to run once:
  
  Serial.begin(115200);
  SPI.begin ();
  SPI.beginTransaction(SPISettings(500000, LSBFIRST, SPI_MODE0));
  delay(5);
  //digitalWrite(SS, LOW);
  //Slavereceived = SPI.transfer(0x80);
}

void loop() {
  // put your main code here, to run repeatedly:
//  if(count==255)
//     count = 0;
  digitalWrite(SS, LOW);
  Slavereceived = SPI.transfer(0x80);
  //delay(1);
  //digitalWrite(SS, HIGH);
  //count++;
  //Serial.println(count, BIN);
}