Code as shown below, I am unable to get the 16 bit data.
Can someone help me identify my mistake?

byte spiTransfer(volatile byte data) {
    SPDR = data;
 
    while (!(SPSR & _BV(SPIF)));
 
    return SPDR;
}




 
#define DOUT      (50) 
#define DIN       (51)
#define SCLK      (52)
#define CS_AD7705 (53)
#define DRDY (4)
void setup() {
   // put your setup code here, to run once:
   Serial.begin(9600);
 
   pinMode(DOUT, OUTPUT);
   pinM ode(DIN, INPUT);
   pinMode(SCLK,OUTPUT);
   pinMode(CS_AD7705,OUTPUT);
   pinMode(DRDY,INPUT);
   SPCR = _BV(SPE) | _BV(MSTR) | _BV(CPOL) | _BV(CPHA) | _BV(SPI2X) | _BV(SPR1) | _BV(SPR0);
   delay(10);
   digitalWrite(CS_AD7705, LOW);   
   spiTransfer(00010000);//setupregister
   spiTransfer(01100110);
   spiTransfer(00100000);//clock register
   spiTransfer(00001000);
   digitalWrite(CS_AD7705,HIGH);
}

 

 void loop() {
   // put your main code here, to run repeatedly:
  unsigned int data=0;
  digitalWrite(CS_AD7705,LOW);  // enable device
  while( !digitalRead(DRDY) );
  data = spiTransfer(00111000);  // select ch1 and setup read 16bit data                                                                                                             ---------register
 
   data = spiTransfer(0)<<8; 
           // Get the most significant 8 bits
   Serial.println("data : "+data);
   data |= spiTransfer(0);  // Get the least significant 8 bits
 
   digitalWrite(CS_AD7705,HIGH);  // release device
   delay(1000);
    Serial.println(data,HEX);

 
      }

Code as shown below. I am unable to get the 16-bit data. Can someone help me identify my mistake?

byte spiTransfer(volatile byte data) {
  SPDR = data;
  while (!(SPSR & _BV(SPIF)));
  return SPDR;
}
#define DOUT      (50) 
#define DIN       (51)
#define SCLK      (52)
#define CS_AD7705 (53)
#define DRDY (4) 

void setup() {
  Serial.begin(9600);
  pinMode(DOUT, OUTPUT);
  pinM ode(DIN, INPUT);
  pinMode(SCLK,OUTPUT);
  pinMode(CS_AD7705,OUTPUT);
  pinMode(DRDY,INPUT);
  SPCR = _BV(SPE) | _BV(MSTR) | _BV(CPOL) | _BV(CPHA) | _BV(SPI2X) | _BV(SPR1) | _BV(SPR0);
  delay(10);
  digitalWrite(CS_AD7705, LOW);
  spiTransfer(00010000); //setup register
  spiTransfer(01100110);
  spiTransfer(00100000); //clock register
  spiTransfer(00001000);
  digitalWrite(CS_AD7705, HIGH);
}

void loop() {
  unsigned int data=0;
  digitalWrite(CS_AD7705,LOW); // enable device
  while(!digitalRead(DRDY));
  data = spiTransfer(00111000);  // select ch1 and setup read 16-bit data register
  data = spiTransfer(0)<<8;
  // Get the most significant 8 bits
  Serial.println("data : "+data);
  data |= spiTransfer(0); // Get the least significant 8 bits
  digitalWrite(CS_AD7705, HIGH); // release device
  delay(1000);
  Serial.println(data, HEX);
}

i have coded as shown below i am unable to get the 16 bit data.can some one help me to debug the mistake i have done

    byte spiTransfer(volatile byte data) {
    SPDR = data;

    while (!(SPSR & _BV(SPIF)));

    return SPDR;
}





   #define DOUT      (50) 
   #define DIN       (51)
   #define SCLK      (52)
   #define CS_AD7705 (53)
   #define DRDY (4)
   void setup() {
     // put your setup code here, to run once:
     Serial.begin(9600);

   pinMode(DOUT, OUTPUT);
   pinM ode(DIN, INPUT);
   pinMode(SCLK,OUTPUT);
   pinMode(CS_AD7705,OUTPUT);
   pinMode(DRDY,INPUT);
   SPCR = _BV(SPE) | _BV(MSTR) | _BV(CPOL) | _BV(CPHA) | _BV(SPI2X) |      _BV(SPR1) | _BV(SPR0);
 delay(10);
digitalWrite(CS_AD7705, LOW);   
spiTransfer(00010000);//setupregister
spiTransfer(01100110);
spiTransfer(00100000);//clock register
spiTransfer(00001000);
digitalWrite(CS_AD7705,HIGH);
 }



 void loop() {
   // put your main code here, to run repeatedly:
  unsigned int data=0;
  digitalWrite(CS_AD7705,LOW);  // enable device
  while( !digitalRead(DRDY) );
  data = spiTransfer(00111000);  // select ch1 and setup read 16bit data                                                                                                             ---------register

   data = spiTransfer(0)<<8; 
           // Get the most significant 8 bits
   Serial.println("data : "+data);
   data |= spiTransfer(0);  // Get the least significant 8 bits

   digitalWrite(CS_AD7705,HIGH);  // release device
   delay(1000);
    Serial.println(data,HEX);


      }

Code as shown below, I am unable to get the 16 bit data.
Can someone help me identify my mistake?

byte spiTransfer(volatile byte data) {
    SPDR = data;

    while (!(SPSR & _BV(SPIF)));

    return SPDR;
}





#define DOUT      (50) 
#define DIN       (51)
#define SCLK      (52)
#define CS_AD7705 (53)
#define DRDY (4)
void setup() {
   // put your setup code here, to run once:
   Serial.begin(9600);

   pinMode(DOUT, OUTPUT);
   pinM ode(DIN, INPUT);
   pinMode(SCLK,OUTPUT);
   pinMode(CS_AD7705,OUTPUT);
   pinMode(DRDY,INPUT);
   SPCR = _BV(SPE) | _BV(MSTR) | _BV(CPOL) | _BV(CPHA) | _BV(SPI2X) | _BV(SPR1) | _BV(SPR0);
   delay(10);
   digitalWrite(CS_AD7705, LOW);   
   spiTransfer(00010000);//setupregister
   spiTransfer(01100110);
   spiTransfer(00100000);//clock register
   spiTransfer(00001000);
   digitalWrite(CS_AD7705,HIGH);
}



 void loop() {
   // put your main code here, to run repeatedly:
  unsigned int data=0;
  digitalWrite(CS_AD7705,LOW);  // enable device
  while( !digitalRead(DRDY) );
  data = spiTransfer(00111000);  // select ch1 and setup read 16bit data                                                                                                             ---------register

   data = spiTransfer(0)<<8; 
           // Get the most significant 8 bits
   Serial.println("data : "+data);
   data |= spiTransfer(0);  // Get the least significant 8 bits

   digitalWrite(CS_AD7705,HIGH);  // release device
   delay(1000);
    Serial.println(data,HEX);


      }