CCS/MSP432P401R: Sending a data command by SPI

Part Number: MSP432P401R
Other Parts Discussed in Thread: ADS1292R

Tool/software: Code Composer Studio

Hello, 

I have to make a communication through SPI, and I have made a function to send some commands to the SPI. After make some test's and putting some breakpoints in some points of the code I verified the code stop's after sent the data to TXBUF. After that I have put a "while"  condition to prevent the program take some other tasks while the TX buffer is not empty. Below i share the function code, in hope to get some help.

Thanks in advance

/*ADS1292R SPI COMMAND DATA*/
void ads1292R_SPI_CMD_DATA(uint8_t data){
    
    unsigned char  delayVar;

    TxData = data;
    ads1292R_CS_LOW();                   /*ADS1292R CS LOW PIN*/
    delayADS1292R(2);                    /*SMALL DELAY TO SETTLE*/
    ads1292R_CS_HIGH();                  /*ADS1292R CS HIGH PIN*/
    ads1292R_CS_LOW();                   /*ADS1292R CS LOW PIN*/

    EUSCI_B0->TXBUF = data;              /*SEND THE DATA SITTING AT THE POINTER DATA TO TX BUFFER*/
    while (EUSCI_B0->STATW & EUSCI_B_STATW_BBUSY);
   

    delayVar = EUSCI_B0->RXBUF;

    delayADS1292R(2);                   /*SMALL DELAY TO SETTLE*/
}