CCS/TM4C1294NCPDT: I am having problems writing over SPI

Tool/software: Code Composer Studio

hi,

I need help with my write functions for SSI.

I was able to read but then I couldn't write over my spi.

and i don't know what im doing wrong.

below is my read and write function.

void ft_Wr8(unsigned long ftAddress, unsigned char ftData8)

{

    unsigned char cTempAddr[3];                              // FT800 Memory Address

    cTempAddr[2] = (char) (ftAddress >> 16) | MEM_WRITE; // Compose the command and address to send

    cTempAddr[1] = (char) (ftAddress >> 8);                           // middle byte

    cTempAddr[0] = (char) (ftAddress);                                   // low byte

    GPIOPinWrite(GPIO_PORTN_BASE, GPIO_PIN_CS, 0);            // Set chip select low

    while (SSIDataGetNonBlocking(SSI0_BASE, &pui32DataRx) != 0)

        ;

    SSIDataPut(SSI0_BASE, &cTempAddr[2]); // Send Memory Write plus high address byte

    SSIDataPut(SSI0_BASE, &cTempAddr[1]);

    SSIDataPut(SSI0_BASE, &cTempAddr[0]);

    SSIDataPut(SSI0_BASE, &ftData8);                                // Send data byte

    while (SSIBusy(SSI0_BASE))

        ;

    GPIOPinWrite(GPIO_PORTN_BASE, GPIO_PIN_CS, GPIO_PIN_CS); // Set chip select high

}

unsigned char ft_Rd8(unsigned long ftAddress)

{

    unsigned char ftData8;                 // Place-holder for 8-bits being read

    unsigned char cTempAddr[3];                          // FT800 Memory Address

    unsigned char cZeroFill = ZERO;

    GPIOPinWrite(GPIO_PORTN_BASE, GPIO_PIN_CS, 0);        // Set chip select low

    while (SSIDataGetNonBlocking(SSI0_BASE, &pui32DataRx))

        ;

    cTempAddr[2] = (char) (ftAddress >> 16) | MEM_READ; // Compose the command and address to send

    cTempAddr[1] = (char) (ftAddress >> 8);                       // middle byte

    cTempAddr[0] = (char) (ftAddress);                              // low byte

    SSIDataPut(SSI0_BASE, cTempAddr[2]); // Send Memory Write plus high address byte

    SSIDataPut(SSI0_BASE, cTempAddr[1]);

    SSIDataPut(SSI0_BASE, cTempAddr[0]);

    // SSIAdvDataPutFrameEnd(SSI0_BASE, cZeroFill);                    // Send dummy byte

    SSIAdvDataPutFrameEnd(SSI0_BASE, cZeroFill);              // Send dummy byte

    SSIDataGet(SSI0_BASE, &ftData8);                        // Receive data byte

    while (SSIBusy(SSI0_BASE))

        ;

    GPIOPinWrite(GPIO_PORTN_BASE, GPIO_PIN_CS, GPIO_PIN_CS); // Set chip select high

    return ftData8;                                             // Return 8-bits