在例程Traffic Monitoring中添加SPI模块后例程崩溃

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Part Number: IWR1843BOOST

我正在使用开发板iwr1843boost和例程Traffic Monitoring，SDK版本3.6.1.0，我已经能够运行可视化工具并获得了例程输出的数据。然后我试图在此例程中启用spi模块以便将数据发送到msp430，但是，当我在例程中添加了启用spi模块的代码后，MSS通常在Sensor Start后2分钟内抛出错误。

以下是我在例程中添加的代码，分别添加到"MmwDemo_initTask()"和"TrackerDemo_transmitProcessedOutput()"

    /*The following code is inserted into 'MmwDemo_initTask()'*/
    
    SPI_init();         // Initialize the SPI 
    SPI_Params      spiParams;

    SPI_Params_init(&spiParams);
    spiParams.mode = SPI_SLAVE;
    spiParams.frameFormat = SPI_POL0_PHA0;
    spiParams.dataSize = 8;
    spiParams.pinMode = SPI_PINMODE_3PIN;
    spiParams.shiftFormat = SPI_MSB_FIRST;
    spiParams.dmaEnable = (uint8_t)1U;
    spiParams.dmaHandle = gMmwMssMCB.dmaHandle;
    spiParams.u.slaveParams.dmaCfg.txDmaChanNum =1U;
    spiParams.u.slaveParams.dmaCfg.rxDmaChanNum =0U;    
 
    gMmwMssMCB.spiHandle = SPI_open(0, &spiParams);
    if (!gMmwMssMCB.spiHandle) {
        System_printf("SPI did not open");
    }

    /*The following code is inserted into 'TrackerDemo_transmitProcessedOutput()'*/
    if(result->numTargets > 0)
    {
        uint32_t a = (uint32_t)128  ;     // data, just for reference
        {
            SPI_Transaction spiTransaction;
            spiTransaction.count = sizeof(a);
            spiTransaction.txBuf = &a;
            spiTransaction.rxBuf = NULL;
            
            bool ret;
            ret = SPI_transfer(spiHandle, &spiTransaction);
            if (!ret) {
                System_printf("Unsuccessful SPI transfer\n");
            }
        }
    }

Mss抛出的错误信息如下图。