Slave Boot – Booting From an External Master Host SPI0 SLAVE

Hi

I am trying to boot Dsp from as a slave device as mentioned in the boot section

7 of Using the OMAP-L1x7 Bootloader

I am trying to implement the protocol that is as specified in the datasheet,which says

• Start-word synchronization (SWS),
• Ping Op-code synchronization (POS) and
• Op-code synchronization (OS).
• Needs to be implemented 
• I have a Mcu controller that acts as a Master(MCUSM470RIBIM)  & DSP OMAPL137
• Dsp is selected to boot from spi slave 0 and corresponding pins on the line is set accordingly
• On the Mcu side our application tries to communicate with ,HERE (on MCU SPI2) that is connected to SPI0 SLAVE ON DSP
• The clock frequency of spiclock on MCU is 1 MHZ    
• the following is the implementation done on MCU side to send the XMT_START and recieve RCV_START

///////////////////////////

#define XMT_START_H 0X5853   ----->opcode to send start transfer

#define RECV_START     0X5253  ----->opcode received Ack  
while(1)
{ 
for(x=0;x<1;x++) // TRYING TO TRANSFER ONCE 
{
sleep(400000);  //THIS PROVIDES A DELAY OF 2SEC i am changing the delays and checking for 50usec to 1sec between each command processing
sws_value = sws_synchronisaton_spi2(0x5853);  TRYING TO WRITE THE VALUE OF XMT_START
send_int(sws_value);// PRINT THE VALUE ON CONSOLE
}
if(sws_value == RECV_START)
{
break;
}
for(x=0;x<1;x++)
{
sleep(200000); 
sws_value = sws_synchronisaton_spi2(0xFFFF);   /// TRYING TO READ BACK IF DATA IS PRESENT BY WRITING FFFF SO THAT IT DOESENT STARTING PROCESSING AGAIN THINKING ITS 0X5853
send_int(sws_value);
}
if(sws_value == RECV_START)
{
break;
}
sleep(200);
}

 //////////////////////////
int sws_synchronisaton_spi2(unsigned short cmd_data)
{
int val;
int i;
unsigned short data = 0;
//------------------------------------------------------------------------------------ 
SPI2PC3 &= 0xFFEF; // CS Pin is made LOW 
for(i=0;i<1;i++)
{
SPI2DAT1 = cmd_data; // This is just a dummy read. No affect on this
sleep(5);
}
// SPI2PC3 |= 0x0010; // CS Pin is made HIGH*/
// sleep(5);
//------------------------------------------------------------------------------------*/ 

//-------------------------------------------------------------------------------------- 
// SPI2PC3 &= 0xFFEF; // CS Pin is made LOW
sleep(5);
while(!(SPI2CTRL3_bit.RXINTFLAG & 0x1));
data = SPI2BUF;
sleep(50);
SPI2PC3 |= 0x0010; // CS Pin is made HIGH
return data;
}

 I am changing the delays and checking for 50usec to 1sec between each command processing

I have searched different forums and different approach for sending the command 0x5853 IN FOR AND WHILE LOOP and receiving I always end up in 0XFFFF

  Here i am trying to send the the XMT_START 0X5853 which has to be transmitted and receive  RECV_START 0x5253

I am able to send the data on the MOSI line (MASTER OUT SLAVE IN)  and the proper value appears on CRO but I am not able to get back any response

from the DSP it always gives 0XFFFF as output .

I have also refereed to the atuil.cs file that does   the uART  transmission,

 What could be the proper approach ?

Where could i be going wrong??