ADS8694: Analog data reading problem

#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "inc/tm4c1294ncpdt.h"
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "driverlib/sysctl.h"
#include "driverlib/gpio.h"
#include "driverlib/interrupt.h"
#include "driverlib/pin_map.h"
#include "driverlib/debug.h"
#include "inc/hw_gpio.h"
#include "driverlib/timer.h"
#include "driverlib/pwm.h"
#include "driverlib/adc.h"
#include <math.h>
#include "driverlib/fpu.h"
#include "driverlib/uart.h"
#include "driverlib/flash.h"
#include "inc/hw_ssi.h"
#include "driverlib/ssi.h"


void ssi_init(void)
{
    uint32_t ui32SysClkFreq;

    ui32SysClkFreq = SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ | SYSCTL_OSC_MAIN | SYSCTL_USE_PLL | SYSCTL_CFG_VCO_480), 120000000);

    SysCtlPeripheralEnable(SYSCTL_PERIPH_SSI2);  //Enable ssi2
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD); //Enable PORT D GPIO to be used with ssi2 data and frame signals

    GPIOPinConfigure(GPIO_PD3_SSI2CLK);

    GPIOPinTypeGPIOOutput(GPIO_PORTD_BASE, GPIO_PIN_2);              // ~CS - configure it as GPIO output
    GPIOPinWrite(GPIO_PORTD_BASE, GPIO_PIN_2, GPIO_PIN_2);

    GPIOPinConfigure(GPIO_PD1_SSI2XDAT0);//mosi
    GPIOPinConfigure(GPIO_PD0_SSI2XDAT1);//miso
    GPIOPinTypeSSI(GPIO_PORTD_BASE,GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_3);

    SSIConfigSetExpClk(SSI2_BASE, ui32SysClkFreq, SSI_FRF_MOTO_MODE_1, SSI_MODE_MASTER, 4000000, 8);
    SSIEnable(SSI2_BASE);
}



int main(void)
{

    uint32_t data[10];
    printf("Well come....\n");
    ssi_init();
    int i,j;
for(i=0;i<6;i++)
{
    SysCtlDelay(8000000);

    GPIOPinWrite(GPIO_PORTD_BASE, GPIO_PIN_2, 0x00);//cs low
    SysCtlDelay(1200);

    SSIDataPut(SSI2_BASE, 0x0D);
    while(SSIBusy(SSI2_BASE));

    SSIDataPut(SSI2_BASE, 0x05);
    while(SSIBusy(SSI2_BASE));

    SSIDataPut(SSI2_BASE, 0xFF);//dummy
    while(SSIBusy(SSI2_BASE));

    SysCtlDelay(1200);
    GPIOPinWrite(GPIO_PORTD_BASE, GPIO_PIN_2, GPIO_PIN_2);//cs high

    SysCtlDelay(4000000);

    GPIOPinWrite(GPIO_PORTD_BASE, GPIO_PIN_2, 0x00);//cs low
    SysCtlDelay(1200);

    SSIDataPut(SSI2_BASE, 0x0C);//auto sec read mode
    while(SSIBusy(SSI2_BASE));

    SSIDataPut(SSI2_BASE, 0xFF);//dummy
   // while(SSIBusy(SSI2_BASE));
    SSIDataGet(SSI2_BASE,&data[2]);

    SSIDataPut(SSI2_BASE, 0xFF);//dummy
    //while(SSIBusy(SSI2_BASE));
    SSIDataGet(SSI2_BASE,&data[3]);

    SysCtlDelay(1200);
    GPIOPinWrite(GPIO_PORTD_BASE, GPIO_PIN_2, GPIO_PIN_2);//cs high

    printf("Data1 = %x\n",data[2]);
    printf("Data2 = %x\n",data[3]);
    SysCtlDelay(8000000);
}

    GPIOPinWrite(GPIO_PORTD_BASE, GPIO_PIN_2, 0x00);//cs low
    SysCtlDelay(1200);

    SSIDataPut(SSI2_BASE, 0xC4);//
    while(SSIBusy(SSI2_BASE));

    SSIDataPut(SSI2_BASE, 0x00);//
    while(SSIBusy(SSI2_BASE));

    SSIDataPut(SSI2_BASE, 0xFF);//dummy
    while(SSIBusy(SSI2_BASE));

    GPIOPinWrite(GPIO_PORTD_BASE, GPIO_PIN_2, GPIO_PIN_2);//cs high



 while(1)
 {

     SSIDataPut(SSI2_BASE, 0x00);//dummy
     SSIDataPut(SSI2_BASE, 0x00);//dummy

    SSIDataPut(SSI2_BASE, 0xFF);//dummy
    while(SSIBusy(SSI2_BASE));
    SSIDataGet(SSI2_BASE,&data[0]);

    SSIDataPut(SSI2_BASE, 0xFF);//dummy
    while(SSIBusy(SSI2_BASE));
    SSIDataGet(SSI2_BASE,&data[1]);

    SSIDataPut(SSI2_BASE, 0xFF);//dummy
    while(SSIBusy(SSI2_BASE));
    SSIDataGet(SSI2_BASE,&data[2]);

    SysCtlDelay(1200);
    GPIOPinWrite(GPIO_PORTD_BASE, GPIO_PIN_2, GPIO_PIN_2);//cs high



    for(j=0;j<3;j++)
    {
        printf("data[%d] = %x\n",j,data[j]);
    }

    printf("\n");

   // SysCtlDelay(8000000);
 }


}