#include <SPI.h>

int CS = 7;

void setup() {
  // put your setup code here, to run once:
  pinMode(CS, OUTPUT);
  digitalWrite(CS, HIGH);
  delay(200);
  SPI.begin();
  writeRegister(0b01000001);//cmd2
  writeRegister(0b11000000);//cmd3
}

void loop() {
  // put your main code here, to run repeatedly:

}

void writeRegister(byte data) {
  digitalWrite(CS, LOW);
  SPI.transfer(data);
  digitalWrite(CS, HIGH);
}

#include <SPI.h>

int CS = 14;

void setup() {
  // put your setup code here, to run once:
  delay(200);
  pinMode(CS, OUTPUT); 
  digitalWrite(CS, HIGH);
  SPI.setBitOrder(LSBFIRST);
  SPI.setClockDivider(SPI_CLOCK_DIV32);
  SPI.setDataMode(SPI_MODE3);
  SPI.begin();

 
  digitalWrite(CS, LOW);
  SPI.transfer(0b01000000); //cmd2 - write data
  digitalWrite(CS, HIGH);

  digitalWrite(CS, LOW);
  SPI.transfer(0b11000000); //cmd3
  for(int i = 0x00; i < 0x2F; i++) SPI.transfer(0); //data - clear ram
  digitalWrite(CS, HIGH);

  digitalWrite(CS, LOW);
  SPI.transfer(0b00001100); //cmd1 - display settings
  digitalWrite(CS, HIGH);
 
  digitalWrite(CS, LOW);
  SPI.transfer(0b10001100); //cmd4 - display setings
  digitalWrite(CS, HIGH);

 
  digitalWrite(CS, LOW);
  SPI.transfer(0b01000001);  // write to led port
  SPI.transfer(0b00010101);  // on led1, led3, led5
  digitalWrite(CS, HIGH);
}

void loop() {
  // put your main code here, to run repeatedly:
 

  delay(100);
}

void PT_init (void)
{
STB = 1;
SDO = 1;
SCL = 1;
Delay_ms(200);
PT_Transmit(0b01000000);        //  Command 2 (0x40) (Normal mode, increment adress,
STB = 1;
PT_Transmit(0b11000000);        // Command 3 (0xC0) (address is set at “00H”.)
STB = 1;
//----------
Mem_clear();
 //----------
//PT_Transmit(dat);
PT_Transmit(0b00000011);        // Command 1 (00XX0XXX : 8 digits, 20 segments)
STB = 1;
PT_Transmit(0b10000111);        // Command 4 (0x87)(10XX00111 display OFF, Pulse width = 1/16.)
STB = 1;
}