#include <SPI.h>

const int SSPin = 10;


 SPISettings mySet(500000, MSBFIRST, SPI_MODE0);


  byte data_arr[32]={12,56,78,67,90,0,78};
  



void setup() {
  Serial.begin(9600);
  pinMode(SSPin, OUTPUT);
  SPI.begin(); 
  sector_clean(0);// 0...255 sectors (1sector=4k_byte)
 // block_clean(0);// 0...15 block (1block=64k_byte)
 // chip_clean();
  delay(1000);
  write_flash(200);

}

void loop() { 
  SPI.beginTransaction(mySet);
  digitalWrite(SSPin, LOW);
  SPI.transfer(0x03); // read
  SPI.transfer(0);
  SPI.transfer(0);
  SPI.transfer(200);
  for (int i=0; i<32; i++) {
    byte data = SPI.transfer(0);
    Serial.print(data);
  }
  Serial.println();
  digitalWrite(SSPin, HIGH);
  SPI.endTransaction();



  delay(1000); // повторяем чтение каждую секунду
}



void write_flash(long addr){
  SPI.beginTransaction(mySet);
  digitalWrite(SSPin, LOW);
  SPI.transfer(0x06);// write on
  digitalWrite(SSPin, HIGH);
  SPI.endTransaction();

  byte addr_2 = (addr >> 16) & 0xFF;
  byte addr_1 = (addr >> 8) & 0x00FF;
  byte addr_0 = addr & 0x0000FF;
  SPI.beginTransaction(mySet);
  digitalWrite(SSPin, LOW);
  SPI.transfer(0x02);
  SPI.transfer(addr_2);
  SPI.transfer(addr_1);
  SPI.transfer(addr_0);
  for (int i=0; i<sizeof(data_arr); i++) {
    SPI.transfer(data_arr[i]);
  }
  digitalWrite(SSPin, HIGH);
  SPI.endTransaction();
 
  SPI.beginTransaction(mySet);
  digitalWrite(SSPin, LOW);
  SPI.transfer(0x04);// write off
  digitalWrite(SSPin, HIGH);
  SPI.endTransaction();
  }

void sector_clean(byte addr){
    SPI.beginTransaction(mySet);
  digitalWrite(SSPin, LOW);
  SPI.transfer(0x06);
  digitalWrite(SSPin, HIGH);
  SPI.endTransaction();

  SPI.beginTransaction(mySet);
  digitalWrite(SSPin, LOW);
  SPI.transfer(0x20);
  SPI.transfer(0);
  SPI.transfer(0);
  SPI.transfer(addr);
  digitalWrite(SSPin, HIGH);
  SPI.endTransaction();
 
  // Выставление запрета записи:
  SPI.beginTransaction(mySet);
  digitalWrite(SSPin, LOW);
  SPI.transfer(0x04);
  digitalWrite(SSPin, HIGH);
  SPI.endTransaction();
  }  

void block_clean(byte addr){
    SPI.beginTransaction(mySet);
  digitalWrite(SSPin, LOW);
  SPI.transfer(0x06);
  digitalWrite(SSPin, HIGH);
  SPI.endTransaction();

  SPI.beginTransaction(mySet);
  digitalWrite(SSPin, LOW);
  SPI.transfer(0x52);
  SPI.transfer(0);
  SPI.transfer(0);
  SPI.transfer(addr);
  digitalWrite(SSPin, HIGH);
  SPI.endTransaction();
 
  SPI.beginTransaction(mySet);
  digitalWrite(SSPin, LOW);
  SPI.transfer(0x04);
  digitalWrite(SSPin, HIGH);
  SPI.endTransaction();
  }   

void chip_clean(){
  SPI.beginTransaction(mySet);
  digitalWrite(SSPin, LOW);
  SPI.transfer(0x06);
  digitalWrite(SSPin, HIGH);
  SPI.endTransaction();

  SPI.beginTransaction(mySet);
  digitalWrite(SSPin, LOW);
  SPI.transfer(0x60);
  digitalWrite(SSPin, HIGH);
  SPI.endTransaction();
 
  SPI.beginTransaction(mySet);
  digitalWrite(SSPin, LOW);
  SPI.transfer(0x04);
  digitalWrite(SSPin, HIGH);
  SPI.endTransaction();
  }