[SOLVED] Ade7763 spi register read issue

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#include "xc.h"
#include "p24fxxxx.h"
 
#ifdef __PIC24FJ64GA006__   //Defined by MPLAB when using 24FJ256GB110 device
    // JTAG/Code Protect/Write Protect/Clip-on Emulation mode
    // Watchdog Timer/ICD pins select
    _CONFIG1(JTAGEN_OFF & GCP_OFF & GWRP_OFF & COE_OFF & FWDTEN_OFF & ICS_PGx1) 
    // Disable CLK switch and CLK monitor, OSCO or Fosc/2, HS oscillator,
    // Primary oscillator
    _CONFIG2(FCKSM_CSDCMD & OSCIOFNC_OFF & POSCMOD_HS & FNOSC_PRIPLL)
#endif
 
// RB2 as SS for SPI slave MCU
#define SPI_SS_TRIS      TRISBbits.TRISB6
#define SPI_SS_PORT      PORTBbits.RB6
 
unsigned short spiBufT[]={0x89,0x78,0xed,0};    // for demo only
unsigned short spiBufR[]={0,0,0,0}; // SPI buffer for Receiving
 
void SPI2Init(void)
{
    //config SPI1
    SPI2STATbits.SPIEN      = 0;    // disable SPI port
    SPI2STATbits.SPISIDL    = 0;    // Continue module operation in Idle mode
    SPI2STATbits.SPIROV         = 0; 
 
    SPI2BUF                 = 0;    // clear SPI buffer
    
    IFS2bits.SPI2IF         = 0;    // clear interrupt flag
    IEC2bits.SPI2IE         = 0;    // disable interrupt
    
    SPI2CON1bits.DISSCK     = 0;    // Internal SPIx clock is enabled
    SPI2CON1bits.DISSDO     = 0;    // SDOx pin is controlled by the module
    SPI2CON1bits.MODE16     = 0;    // set in 16-bit mode, clear in 8-bit mode
    SPI2CON1bits.SMP        = 0;    // Input data sampled at middle of data output time
    SPI2CON1bits.CKP        = 1;    // CKP and CKE is subject to change ...
    SPI2CON1bits.CKE        = 0;    // ... based on your communication mode.
    SPI2CON1bits.MSTEN      = 1;    // 1 =  Master mode; 0 =  Slave mode
    SPI2CON1bits.SPRE       = 4;    // Secondary Prescaler = 4:1
    SPI2CON1bits.PPRE       = 2;    // Primary Prescaler = 4:1
    
    SPI2CON2                = 0;    // non-framed mode
    
    SPI_SS_PORT             = 1;    // ALL SPI_SS_PORT PINS ARE CLEARED
    SPI_SS_TRIS             = 0;    // set SS as output -RB6
    
    SPI2STATbits.SPIEN      = 1;    // enable SPI port, clear status
}
 
unsigned short writeSPI2( unsigned short data )
{
    SPI2BUF = data;                 // write to buffer for TX
    while(!SPI2STATbits.SPIRBF);    // wait for transfer to complete
    return SPI2BUF;                 // read the received value
}//writeSPI1
 
int main (void)
{
    unsigned short i;
    
    // Disable Watch Dog Timer
    RCONbits.SWDTEN = 0;
    // for LED
//  ODCAbits.ODA6 = 0;
    TRISEbits.TRISE4 = 0;
 
    SPI2Init();
    
    while (1) {
        for (i=0; i<0xffff; i++);   // a simple delay
        
        SPI_SS_PORT = 0;
        spiBufR[0]  = writeSPI2(spiBufT[0]);
        spiBufR[1]  = writeSPI2(spiBufT[1]);
        spiBufR[2]  = writeSPI2(spiBufT[2]);
        spiBufR[3]  = writeSPI2(0);
        SPI_SS_PORT = 1;
 
    } 
 
    return 0;
}