SPI--->ATmega8---help needed

Hallo,

I have the following piece of code to transmit data from the AD7714 to
the ATMega8.
I always get return values of digital word from the ADC as 255.
Can anyone help me out?

Thanks Shrishti




for(a=0;a<5;a++)
    {
     putcharsf("Writing to CR to read from DR\n\r");
     SPI_MasterTransmit(0x5C); // Writing to communication register to
read from data register
    SPI_SlaveReceive();
    printf("Returned value %d\n\r", dataarray[2]);
      }


// Function to transmit data to master
void SPI_MasterTransmit(unsigned char cData)
{
   printf("cDATA Value %X\n\r",cData);
   SPDR = cData;
   while(!(SPSR & 0x80));
  }

unsigned char SPI_SlaveReceive(void)
{
      for(i=0; i < 3 ; i++)
    {
    SPDR=0x00;
    while(!(SPSR & 0x80));
    data=SPDR;
    dataarray[i]=data;
    printf("i array value %d and data value %d of byte %d\n\r",
dataarray[i],data,i);
    }
    if(i==3)
    {
     return dataarray[2];
    }

}