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IWR6443: Error code 46, sent by the RADAR.

SuryaPrakash Durairaj
Prodigy 230 points
Part Number: IWR6443
Other Parts Discussed in Thread: IWR6243

Hi,ade

I am trying to perform profile configuration for the IWR6243 RADAR (57GHZ to 64GHZ), RADAR sends error code 46 [Ramp end frequency is not within [76, 81] GHz], the profile configuration values I took directly from the DFP example codes.

    ptrProfileCfg->profileId             = 0;
    ptrProfileCfg->startFreqConst        = (uint32_t) ((float)57.02 * (1U << 26) / 2.7);
    ptrProfileCfg->idleTimeConst         = 14 * 1000 / 10;
    ptrProfileCfg->adcStartTimeConst     = 6 * 1000 / 10;
    ptrProfileCfg->rampEndTime           = 67.04 * 1000 /10;
    ptrProfileCfg->txOutPowerBackoffCode = 0;
    ptrProfileCfg->txPhaseShifter        = 0;
    //ptrProfileCfg->freqSlopeConst        = 11 * 1000 / 48;
    ptrProfileCfg->freqSlopeConst        = (16.9824*(1<<26))/(2.7 * 1e3 * 900);
    ptrProfileCfg->txStartTime           = 1 * 1000 / 10;
    ptrProfileCfg->numAdcSamples         = TEST_NUM_ADC_SAMPLES;
    ptrProfileCfg->digOutSampleRate      = 10000;
    ptrProfileCfg->hpfCornerFreq1        = 0;
    ptrProfileCfg->hpfCornerFreq2        = 0;
    ptrProfileCfg->rxGain                = 30;

These are the values, Please suggest a solution for fixing this error.

Regards,

Surya

Regards,

Surya

  • 0
    TI__Expert 4448 points

    Hi Surya,

    Can you please clarify what device you are using? Is it the 6243, 6443, or 6843? And what is the path of the file you are obtaining the DFP example code from? This will help me answer your question.

    I will also direct you to the mmWave Sensing Estimator tool. Set "6843" as your device even though you are using 6243 or 6443. Please plug the values you listed above into the tool alongside the rest of the configuration file. See what the ramp end time equals, you will likely find that it does not land between the values required, as stated by the error message.

    Regards,
    Luke

  • 0 in reply to Luke Rouleau
    Prodigy 230 points

    Hi,

    I am using IWR6243, I took the example values from this "mmwave_dfp_06_04_01_00", ("C:\ti\IWR6243\IWR6243\mmwave_dfp_06_04_01_00 (1)\ti\example\mmWaveLink_SingleChip_Monitoring\mmwaveconfig.txt").

  • 0 in reply to SuryaPrakash Durairaj
    TI__Expert 4448 points

    Hi Surya,

    Give me 24 hours to look further into this for you.

    Regards,
    Luke

  • 0 in reply to Luke Rouleau
    TI__Expert 4448 points

    Hi Surya, 

    Upon further review, the error exists most likely because the demo code has not been updated in the 6243 DFP, though the DFP itself has. This is why you are seeing error messages that are relevant only to the 77GHz automotive devices, not the 60GHz IWR6243.

    What is your setup here? And what is your code loading procedure? And what hardware is in use besides the 6243?

    Regards,
    Luke