Silabs C8051F120 SPI Problem

Hi all,

I am interfacing C8051F120 Silabs microcontroller for one of my application.
Description of the Application:

Data Acquisition and Controlling.16 bit ADC and DAC are connected to C8051F120 uC Via SPI.I need to acquire data from the Battery using ADC and Control the Battery(Charge/Discharge) using DAC.

I am not seeing Clock out on SCK pin.(I have checked using Oscilloscope).

Here is my Code.(The code is for ADC)

#include <c8051F120.h>
#include <stdio.h>

#define ADC_CH0 0x87
#define ADC_CH1 0xC7
#define ADC_CH2 0x97
#define ADC_CH3 0xD7
#define ADC_CH4 0xA7
#define ADC_CH5 0xE7
#define ADC_CH6 0xB7
#define ADC_CH7 0xF7

sbit CS_ADC1=P0^5;
sbit BUSY1=P3^0;


#ifndef BYTE
#define BYTE unsigned char
#endif

#ifndef UINT
#define UINT unsigned int
#endif


void Reset_Sources_Init (void);
void OSCILLATOR_Init (void);
void PORT_Init (void);
//void UART0_Init (void);
void SPI0_Init (void);
void Init_Device (void);

// The following functions save and restore SFRPAGE:
void SPI_Write (UINT address, BYTE value);
BYTE SPI_Read (UINT address);
void adc_convert (UINT);

unsigned char adcresult=0;
unsigned char adc_lowbyte=0,adc_highbyte=0;


void Reset_Sources_Init()

{
    WDTCN     = 0xDE;
    WDTCN     = 0xAD;
}

void Oscillator_Init()
{
    int i = 0;
    SFRPAGE   = CONFIG_PAGE;
    OSCXCN    = 0x67;
    for (i = 0; i < 3000; i++);  // Wait 1ms for initialization
    while ((OSCXCN & 0x80) == 0);
    CLKSEL    = 0x01;
    OSCICN        = 0x00;

}

void Port_IO_Init()
{
        SFRPAGE = CONFIG_PAGE;
        XBR0 = 0x07;
        XBR1 = 0x14;
        XBR2 = 0xC4;

        P0MDOUT = 0x35;
        P1MDOUT = 0x71;
        P2MDOUT = 0x73;
        P3MDOUT = 0x0F;
        SFRPAGE = CONFIG_PAGE;
        P5MDOUT = 0xFF;
        P6MDOUT = 0xFF;
        P7MDOUT = 0xFF;
}

void SPI0_Init()
{
   SFRPAGE   = SPI0_PAGE;
   SPI0CFG   = 0x40;
   SPI0CN    = 0x0D;
   SPI0CKR   = 0xDC;
}

void Init_Device (void)
{
   Reset_Sources_Init ();
   OSCILLATOR_Init ();
   Port_IO_Init ();
   SPI0_Init ();
}

void ADC_Write (UINT channel)
{
   BYTE  save_sfrpage = SFRPAGE;
   SFRPAGE   = SPI0_PAGE;

   // Writing a byte to the EEPROM is a five-step operation.

   // Step1: Set the Write Enable Latch to 1
   CS_ADC1   = 0;                       // Step1.1: Activate Slave Select
   SPI0DAT  = channel;                     // Step1.2: Select channel
   while (!SPIF);                      // Step1.3: Wait for end of transfer
   SPIF     = 0;                       // Step1.4: Clear the SPI intr. flag
   CS_ADC1   = 1;                       // Step1.5: Deactivate Slave Select
   //Delay_us (1);                       // Step1.6: Wait for at least
                                       //          T_NSS_DISABLE_MIN
   SFRPAGE  = save_sfrpage;
}

BYTE ADC_Read ()
{
   BYTE  value;
   BYTE  save_sfrpage = SFRPAGE;
   SFRPAGE   = SPI0_PAGE;

   // Reading a byte from the ADC is a three-step operation.
   // Read the value returned
   CS_ADC1  = 0;
   SPI0DAT  = 0;                       // Dummy write to output serial clock
   while (!SPIF);                      // Wait for the value to be read
   SPIF     = 0;
   CS_ADC1   = 1;                       // Deactivate Slave Select
   //Delay_us (1);
   value    = SPI0DAT;                 // Store EEPROM value in local var.

   SFRPAGE  = save_sfrpage;
   return value;
}

void adc_convert (UINT adc_Ch)
{
        ADC_Write(adc_Ch);
        while(BUSY1==1);
        if(BUSY1==0)
        {
                adc_highbyte=ADC_Read ();
                adc_lowbyte=ADC_Read ();
        }
}

void main(void)
{
        Init_Device();
        SFRPAGE   = SPI0_PAGE;
        while(1)
        {
                adc_convert (ADC_CH0 );
        }
}

I am not able analyze the problem.Can somebody suggest me to solve my problem.

Thanks and Regards,

Y.Viswanath.