ADS1256 is burned out?

Hi Christopher,

I have 7.68 MHz oscillator frequency. So i have 0.1302083 micro seconds master clock period. I calculate t6 delay as 6.51 micro seconds and t11 dealy as 0.52-3.12 microseconds for 4 and 24 tCLKN respectively. I put 10 micro seconds delays between commands. DRDY pin of my chip does not go low. I don't have any hope but can you check my loop for future works? Here is my code.I am using arduino due.

#include <SPI.h>

/* ADS1256 Registers (see p30) */
#define   STATUS  0x00 //Status Control Register 0
#define   MUX     0x01 //Multiplexer Control Register 0
#define   ADCON   0x02 //A/D Control Register 0
#define   DRATE   0x03 //A/D Data Rate Control Register 0
#define   IO      0X04 //GPIO Control Register 0
#define   OFC0    0x05 //Offset Calibration Coefficient Register 1
#define   OFC1    0x06 //Offset Calibration Coefficient Register 2
#define   OFC2    0x07 //Offset Calibration Coefficient Register 2
#define   FSC0    0x08 //Full scale Callibration Coefficient Register 0
#define   FSC1    0x09 //Full scale Callibration Coefficient Register 1
#define   FSC2    0x0A //Full scale Callibration Coefficient REgister 2
/* ADS1256 SPI Commands (see p34) */
#define   WAKEUP    0x00  //Completes SYNC and exits standby mode
#define   RDATA     0x01  //Read data
#define   RDATAC    0x03  //Read data continously
#define   SDATAC    0x0F  //Stop read data continously
#define   RREG      0x10  //Read From Register rrrr
#define   WREG      0x50  //Write To Register rrrr
#define   SELFCAL   0xF0  //Offset and gain self-calibration
#define   SELFOCAL  0xF1  //Offset self-calibration
#define   SELFGCAL  0xF2  //Gain self-calibration
#define   SYSOCAL   0xF3  //System Offset Calibration
#define   SYSGCAL   0xF4  //System Gain Calibration
#define   SYNC      0xFC  //Synchornize the A/D Conversion
#define   STANDBY   0xFD  //Enter Sleep Mode
#define   RESET     0xFE  //Reset To Power UP values

const int CS = 10;  //Slave select pin

void setup() {
  // start the UART library:
  Serial.begin(9600);
  // start the SPI library:
  SPI.begin();
  SPI.beginTransaction(SPISettings(1000000, MSBFIRST, SPI_MODE1));  //1MHz clock speed,most significant bit first, CLPOL=0,CPHA=1
  pinMode(CS, OUTPUT);
}

void loop() {
   digitalWrite(CS, LOW);  //CS active
   SPI.transfer(SDATAC);
   SPI.transfer(SYNC); 
   delayMicroseconds(10);
   SPI.transfer(WAKEUP);
   delayMicroseconds(10);
   SPI.transfer(RDATA);
   SPI.transfer(0x00);
   SPI.transfer(0x00);
   SPI.transfer(0x00);
   digitalWrite(CS, HIGH); //CS inactive
   delayMicroseconds(200);
}