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DM6437 EVM as SPI slave with Master being MSP430

Hi,

    I am trying to configure DM6437 EVM as SPI slave  with Master being MSP430. I have properly configured MSP430 to give 4 pin configuration.

 DM6437 EVM, i used McBSP0 as SPI slave and used U65 ports of pins for the connections. What i see when i connected the MSP430 to DM6437 SPI pins is that RRDY bit is turning ON , but i dont see any data in DRR register. I checked all my configuration and they seem to be fine.

Please let me know how do i proceed.

Please find below my code , for the same.

 

 

/*
 *  EVMDM6437 SPI Suite
 *
 */

#include "stdio.h"
#include "evmdm6437.h"

#define SPCR_RESET   0x00000000
#define PCR_RESET    0x00000000
#define SRGR_RESET   0x20000001
#define XCR_RESET    0x00000000
#define RCR_RESET    0x00000000

 

#define SPCR_SLAVE  0x00001800
#define SAMPLE_RATE_ENABLE 0x00410001
#define PCR_SLAVE   0x00000008
#define SRGR_SLAVE  0x20000001
#define XCR_SLAVE   0x00010000
#define RCR_SLAVE   0x00010000

#define SPCR_RRDY   0x00000002

void init_McBSP0_slave();

 


void main( void )
{
     float temp=3.142;
  int i=0;
  temp *=1.2;
 
    /* Initialize BSL */
    EVMDM6437_init( );
 init_McBSP0_slave();

  MCBSP0_SPCR |=0x00000001;//RRST pin
     MCBSP0_SPCR |=0x00010000;//XRST pin

  _wait(2);

  MCBSP0_DXR_8BIT = 'a';

 while(1)
 {
  

  while (MCBSP0_SPCR & SPCR_RRDY)
  {
         printf("\n %d :***:%c ",i++,MCBSP0_DRR_8BIT); 
  }
 }

   

    printf( "\n***ALL Tests Passed***\n" );
    SW_BREAKPOINT;
}

 


void init_McBSP0_slave()
{
    /* All default or reset values are set */
    MCBSP0_SPCR = SPCR_RESET;
 
 MCBSP0_PCR  = PCR_RESET;
 MCBSP0_SRGR = SRGR_RESET;
 MCBSP0_XCR  = XCR_RESET;
 MCBSP0_RCR  = RCR_RESET;

    /* Initialise McBSP0 as slave device */
    MCBSP0_SPCR |= SPCR_SLAVE;//0x00000800;
 MCBSP0_PCR  |= PCR_SLAVE; //0x08
 MCBSP0_SRGR |= SRGR_SLAVE; //0x20000001;
 MCBSP0_XCR  |= XCR_SLAVE;//0x00
 MCBSP0_RCR  |= RCR_SLAVE;//0x00

 MCBSP0_SPCR |= SAMPLE_RATE_ENABLE; //Enable Sample rate and Receive buffer.

 _wait(2);
         
}