CCS/IWR1642: MmwDemo_dssMmwaveConfigCallbackFxn function

Hi Ardeal,

I assume you are referring to SDK 2.1.0.4.

The call back function is registered with the mmwave library during initialization as shown below (dss_main.c line 2751) 

    /************************************************************************
     * mmwave library initialization
     ************************************************************************/

    /* Populate the init configuration for mmwave library: */
    initCfg.domain                      = MMWave_Domain_DSS;
    initCfg.socHandle                   = gMmwDssMCB.socHandle;
    initCfg.eventFxn                    = MmwDemo_dssMmwaveEventCallbackFxn;
    initCfg.linkCRCCfg.useCRCDriver     = 1U;
    initCfg.linkCRCCfg.crcChannel       = CRC_Channel_CH1;
    initCfg.cfgMode                     = MMWave_ConfigurationMode_FULL;
    initCfg.executionMode               = MMWave_ExecutionMode_COOPERATIVE;
    initCfg.cooperativeModeCfg.cfgFxn   = MmwDemo_dssMmwaveConfigCallbackFxn;
    initCfg.cooperativeModeCfg.startFxn = MmwDemo_dssMmwaveStartCallbackFxn;
    initCfg.cooperativeModeCfg.stopFxn  = MmwDemo_dssMmwaveStopCallbackFxn;
    initCfg.cooperativeModeCfg.openFxn  = MmwDemo_dssMmwaveOpenCallbackFxn;
    initCfg.cooperativeModeCfg.closeFxn = MmwDemo_dssMmwaveCloseCallbackFxn;

    /* Initialize and setup the mmWave Control module */
    gMmwDssMCB.ctrlHandle = MMWave_init (&initCfg, &errCode);

As shown in the function comments, this function is called by the mmwave library when it has completed the BSS configuration. You can put a breakpoint in this function before sending the sensor configuration and it should be called when the configuration is complete.

/**
 *  @b Description
 *  @n
 *      Registered config callback function on DSS which is invoked by MMWAVE library when the remote side
 *  has finished configure mmWaveLink and BSS. The configuration need to be saved on DSS and used for DataPath.
 *
 *  @param[in]  ptrCtrlCfg
 *      Pointer to the control configuration
 *
 *  @retval
 *      Not applicable
 */
static void MmwDemo_dssMmwaveConfigCallbackFxn(MMWave_CtrlCfg* ptrCtrlCfg)
{
    /* Save the configuration */
    memcpy((void *)(&gMmwDssMCB.cfg.ctrlCfg), (void *)ptrCtrlCfg, sizeof(MMWave_CtrlCfg));

    gMmwDssMCB.stats.configEvt++;

    /* Post event to notify configuration is done */
    Event_post(gMmwDssMCB.eventHandle, MMWDEMO_CONFIG_EVT);

    return;
}

Thanks

-Nitin

HI Nitin,

Many thanks for your reply!

as you mentioned:

this function is called by the mmwave library when it has completed the BSS configuration.

Does this mean that this callback function will be called when BSS sends a certain command to DSS?

what command will be sent to DSS to invoke this callback function?  Could you please point out the piece of BSS code which will send command to DSS and invoke this callback function?

when this callback function is called, how to generate the input parameter ptrCtrCfg? Is the parameter sent from BSS by mailbox message?

is the message(ptrCtrCfg) configured in config file(xwr1642_profile_VitalSigns_20fps_Front.cfg)?

Thanks and Best Regards,

Ardeal

Hi,

One more question:

static int32_t MmwDemo_dssDataPathConfig(void)
{
    int32_t             retVal = 0;
    MMWave_CtrlCfg      *ptrCtrlCfg;
    MmwDemo_DSS_DataPathObj *dataPathObj;
    uint8_t subFrameIndx;

    /* Get data path object and control configuration */
    ptrCtrlCfg   = &gMmwDssMCB.cfg.ctrlCfg;

    if (ptrCtrlCfg->dfeDataOutputMode == MMWave_DFEDataOutputMode_ADVANCED_FRAME)
    {
        gMmwDssMCB.numSubFrames =
            ptrCtrlCfg->u.advancedFrameCfg.frameCfg.frameSeq.numOfSubFrames;
    }
    else
    {
        gMmwDssMCB.numSubFrames = 1;
    }

in above code, when is gMmwDssMCB.cfg.ctrlCfg initialized? Could you please tell me the location where gMmwDssMCB.cfg.ctrlCfg is initialized?

Thanks and Best Regards,

Ardeal

I couldn't figure out when and where the member is initialized?

rlUInt16_t numAdcSamples;

Thanks and Best Regards,

Ardeal