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IWR6843AOPEVM: how to change the calibration settings for the OOB demo and other labs

ck
Prodigy 140 points
Part Number: IWR6843AOPEVM

I am running the OOB demo using the demo visualizer, and also trying other labs. I want to enable the calibration settings to do boot time calibration and run time calibration, what will be the best way to do that?

I know using mmwave studio I can configure the calibration settings, but can I load the OOB demo using the mmwave studio and change the calibration?

  • 0
    TI__Mastermind 30405 points

    Hi Chunmei,

    1. Boot time calibrations are already enabled in the OOB demo. The configuration is sent in mmWave_open in the following code from main.c:

            /* Setup the calibration frequency */
        gMmwMCB.cfg.openCfg.freqLimitLow  = 600U;
        gMmwMCB.cfg.openCfg.freqLimitHigh = 640U;

    The demo visualizer prints out the calibration status (0x1FFE) on startup as shown in the following code from main.c

                    case RL_RF_AE_INITCALIBSTATUS_SB:
                {
                    rlRfInitComplete_t*  ptrRFInitCompleteMessage;
                    uint32_t            calibrationStatus;

                    /* Get the RF-Init completion message: */
                    ptrRFInitCompleteMessage = (rlRfInitComplete_t*)payload;
                    calibrationStatus = ptrRFInitCompleteMessage->calibStatus & 0xFFFU;

                    /* Display the calibration status: */
                    CLI_write ("Debug: Init Calibration Status = 0x%x\n", calibrationStatus);
                    break;
                }

    2. The runtime i.e. periodic calibrations are also enabled in the OOB demo as shown in the following code from main.c.

    int32_t MmwDemo_startSensor(void)
{
    int32_t     errCode;
    MMWave_CalibrationCfg   calibrationCfg;
    
    /*****************************************************************************
     * Data path :: start data path first - this will pend for DPC to ack
     *****************************************************************************/
    MmwDemo_dataPathStart();

    /*****************************************************************************
     * RF :: now start the RF and the real time ticking
     *****************************************************************************/
    /* Initialize the calibration configuration: */
    memset ((void *)&calibrationCfg, 0, sizeof(MMWave_CalibrationCfg));
    /* Populate the calibration configuration: */
    calibrationCfg.dfeDataOutputMode = gMmwMCB.cfg.ctrlCfg.dfeDataOutputMode;
    calibrationCfg.u.chirpCalibrationCfg.enableCalibration    = true;
    calibrationCfg.u.chirpCalibrationCfg.enablePeriodicity    = true;
    calibrationCfg.u.chirpCalibrationCfg.periodicTimeInFrames = 10U;

    Regards

    -Nitin