#include     // include the SPI communcation library
// Connect pin#13 (SCLK) To S2 on AP23 
// Connect pin#11 (DATOUT) To S3 on AP23 
// Connect pin#13 (SCLK) To S2 on AP23 
// Connect pin#10 (CS) To S1 on AP23
// DO from Ap23 optional S4 - Not used here
#define cs 10          // These are the chip-select pins for SPI. They control chips 1-4
#define cs2 9
#define cs3 8
#define cs4 7
int hold = 0;       // Integer used when calling words
int del=200;        // short 200ms delay
int play = 0x98;  // play command - This value never changes
int value2 = 0;  // voice address - when you place a hex value in this integer and call the "readout()" function, that specific word will play
int value3 = 0xA8;  // COUT ramp up - This value never changes
int value4 = 0xB8;   // COUT ramp down - This value never changes
// ALL OF THE ABOVE CODE IS REQUIRED FOR THE OPERATION OF THE LBT

void setup()  // Set up SPI
{Serial.begin(9600);
  SPI.begin();             // Initialize SPI
  SPI.setClockDivider(SPI_CLOCK_DIV32); // low frequency SPI
  pinMode(cs,OUTPUT);    // Chip select pins is an output
  pinMode(cs2,OUTPUT);    // Chip select pins is an output
  pinMode(cs3,OUTPUT);    // Chip select pins is an output
  pinMode(cs4,OUTPUT);    // Chip select pins is an output
  digitalWrite(cs,HIGH); // Set chip select to be HIGH (5v) by default.  The chip on the shield is selected when this line is brought low. 
  digitalWrite(cs2,HIGH); // Set chip select to be HIGH (5v) by default.  The chip on the shield is selected when this line is brought low. 
  digitalWrite(cs3,HIGH); // Set chip select to be HIGH (5v) by default.  The chip on the shield is selected when this line is brought low. 
  digitalWrite(cs4,HIGH); // Set chip select to be HIGH (5v) by default.  The chip on the shield is selected when this line is brought low. 
  SPI.setBitOrder(MSBFIRST);  // OTP requires MSB first
  SPI.setDataMode(SPI_MODE0);  // Use MODE0, as all other modes to not work
  value2 = 0x00; // Start at voice group 0
  delay(1000);   // One second delay
  // The following code sets up the output of each chip.  
  digitalWrite(cs,LOW);
  SPI.transfer(value3);
  SPI.transfer(0x00);
  digitalWrite(cs,HIGH);
  delay(5);
  digitalWrite(cs2,LOW);
  SPI.transfer(value3);
  SPI.transfer(0x00);
  digitalWrite(cs2,HIGH);
  delay(5);
   digitalWrite(cs3,LOW);
  SPI.transfer(value3);
  SPI.transfer(0x00);
  digitalWrite(cs3,HIGH);
  delay(5);
  digitalWrite(cs4,LOW);
  SPI.transfer(value3);
  SPI.transfer(0x00);
  digitalWrite(cs4,HIGH);
  value2 = 0;   // THIS STARTS THE POINTER AT WORD 0
}



void loop()             // IN THIS LOOP, ALL WORDS ARE PLAYED SEQUENTIALLY. VALUE2 INTEGER IS INCREMENTED AFTER EVERY WORD PLAYED.
{

  digitalWrite(cs4,LOW);   // Talk to chip#1
  Serial.print("The value of CS ");
  Serial.println(cs4); 
  //cs=10
  //cs2=9
  //cs3=8
  //cs4=7
  SPI.transfer(play);   // Send command to play
  SPI.transfer(3);     // Call 
  digitalWrite(cs4,HIGH);  // Stop talking to chip.  The word will be said by the BBT at this time
  delay(850); 

}