void AD738x_dataConversion(void)
{
    int16_t adcResults[NUM_CHANNELS];
    int32_t transferOK;
    uint8_t txBuf[8] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
    uint8_t rxBuf[8] = { 0 };
    MIBSPI_Transaction spiTransaction;

    spiTransaction.count            = 8;         // 4 channels x 16 bits = 8 bytes
    spiTransaction.txBuf            = (void *)txBuf;
    spiTransaction.rxBuf            = (void *)rxBuf;
    spiTransaction.peripheralIndex  = 0U;
    spiTransaction.arg              = NULL;

    DebugP_log("Starting AD738x data conversion loop...\n");

    for (int i = 0; i < NUM_SAMPLES; i++)
    {
        // data conversion, first read commands
        transferOK = MIBSPI_transfer(gMibspiHandle[MSS_SPIB_J16], &spiTransaction);
        if ((transferOK != SystemP_SUCCESS) || (spiTransaction.status != MIBSPI_TRANSFER_COMPLETED))
        {
            DebugP_log("AD738x SPI data conversion first read failed!\r\n");
            DebugP_assert(FALSE);
            return;
        }

        // Parse channels from received buffer
        adcResults[0] = ((int16_t)rxBuf[0] << 8) | rxBuf[1];  // Ch1
        adcResults[1] = ((int16_t)rxBuf[2] << 8) | rxBuf[3];  // Ch2
        adcResults[2] = ((int16_t)rxBuf[4] << 8) | rxBuf[5];  // Ch3
        adcResults[3] = ((int16_t)rxBuf[6] << 8) | rxBuf[7];  // Ch4

        // Store results in adcBuffer
        for (int ch = 0; ch < NUM_CHANNELS; ch++)
        {
            adcBufferRaw[i][ch] = adcResults[ch];
        }
    }

    for (int i = 0; i < NUM_SAMPLES; i++)
    {
        DebugP_log("%4d\n", adcBufferRaw[i][0]);
    }

    DebugP_log("Finished data conversion loop, stored %d samples.\n", NUM_SAMPLES);
}