Slave Boot – Booting From an External Master Host

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
  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 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??