AWR2243BOOST: DCA1000EVM and AWR2243B: Use of the rawdatareader in matlab to Radarcube.mat

Hi Cesar,

Thanks for you kind message.

I was using the rawdatareader.m with the json files mentioned in the JSONsamplefiles and got the range fft plots and time domain plots and I was using the exact chirp configuration as given in mmwave studio as default.

But now I have changed the chirp parameters and also exported the json files and tried to run the rawdatareader.m with the new json files created by mmwave studio but now I am getting errors which says json file not recognised. Which json file shall I use now?

I want to use the rawdatareader.m to read the binary file created by the mmwave studio and produce the range fft and time domain plots and also the radar cube.mat file for my post processing.

Would you please guide me how?

Thanks and regards,

Niladri

Hi Cesar,

Thanks for your kind reply. I am really sorry for the late reply.

I am attaching the chirp parameters and the output plot from mmwave studio.

I am also attaching the json files here and I obtained them from the mmwave studio.

1st is the setup json file and 2nd is the mmwave json file.

With these 2 json files I am not able to read the binary file with the rawdatareader.m script.

Thanks and regards,

Niladri

{
  "createdByVersion": "3.0.0.14",
  "createdOn": "2025-03-06T14:17:45.2748465+01:00",
  "configUsed": "C:\\Users\\admin\\OneDrive - Universidad Politécnica de Madrid\\Desktop\\Radar Data\\28.02.2025\\mmwave.json",
  "captureHardware": "DCA1000",
  "DCA1000Config": {
    "dataLoggingMode": "raw",
    "dataTransferMode": "LVDSCapture",
    "dataCaptureMode": "ethernetStream",
    "packetSequenceEnable": 1,
    "packetDelay_us": 25
  },
  "mmWaveDevice": "awr2243",
  "operatingFreq": 77,
  "mmWaveDeviceConfig": {
    "RS232COMPort": "COM7",
    "RS232BaudRate": "921600",
    "radarSSFirmware": "C:\\ti\\mmwave_studio_03_00_00_14\\rf_eval_firmware\\AWR2243_ES1_1\\radarss\\xwr22xx_radarss.bin",
    "masterSSFirmware": "C:\\ti\\mmwave_studio_03_00_00_14\\rf_eval_firmware\\AWR2243_ES1_1\\masterss\\xwr22xx_masterss.bin"
  },
  "capturedFiles": {
    "numFilesCollected": 1,
    "fileBasePath": "C:\\ti\\mmwave_studio_03_00_00_14\\mmWaveStudio\\PostProc",
    "files": [
      {
        "rawFileName": "adc_data_Raw_0.bin",
        "processedFileName": "adc_data.bin",
        "processedFileSummary": {
          "numZeroFillBytes": 0
        }
      }
    ]
  }
}

{
  "configGenerator": {
    "createdBy": "mmWaveStudio",
    "createdOn": "2025-03-06T14:10:00.6269746+01:00",
    "isConfigIntermediate": 1
  },
  "currentVersion": {
    "jsonCfgVersion": {
      "major": 0,
      "minor": 4,
      "patch": 0
    },
    "DFPVersion": {
      "major": 2,
      "minor": 2,
      "patch": 0
    },
    "SDKVersion": {
      "major": 3,
      "minor": 3,
      "patch": 0
    },
    "mmwavelinkVersion": {
      "major": 2,
      "minor": 2,
      "patch": 0
    }
  },
  "lastBackwardCompatibleVersion": {
    "DFPVersion": {
      "major": 2,
      "minor": 1,
      "patch": 0
    },
    "SDKVersion": {
      "major": 3,
      "minor": 0,
      "patch": 0
    },
    "mmwavelinkVersion": {
      "major": 2,
      "minor": 1,
      "patch": 0
    }
  },
  "regulatoryRestrictions": {
    "frequencyRangeBegin_GHz": 77,
    "frequencyRangeEnd_GHz": 81,
    "maxBandwidthAllowed_MHz": 4000,
    "maxTransmitPowerAllowed_dBm": 12
  },
  "systemConfig": {
    "summary": "This is a comments field not passed to device",
    "sceneParameters": {
      "ambientTemperature_degC": 20,
      "maxDetectableRange_m": 10,
      "rangeResolution_cm": 5,
      "maxVelocity_kmph": 26,
      "velocityResolution_kmph": 2,
      "measurementRate": 10,
      "typicalDetectedObjectRCS": 1.0
    }
  },
  "mmWaveDevices": [
    {
      "mmWaveDeviceId": 0,
      "rfConfig": {
        "waveformType": "legacyFrameChirp",
        "MIMOScheme": "TDM",
        "rlCalibrationDataFile": "",
        "rlChanCfg_t": {
          "rxChannelEn": "0x1",
          "txChannelEn": "0x1",
          "cascading": 0,
          "cascadingPinoutCfg": "0x0"
        },
        "rlAdcOutCfg_t": {
          "fmt": {
            "b2AdcBits": 2,
            "b8FullScaleReducFctr": 0,
            "b2AdcOutFmt": 1
          }
        },
        "rlLowPowerModeCfg_t": {
          "lpAdcMode": 0
        },
        "rlProfiles": [
          {
            "rlProfileCfg_t": {
              "profileId": 0,
              "pfVcoSelect": "0x2",
              "pfCalLutUpdate": "0x0",
              "startFreqConst_GHz": 75.9999999761582,
              "idleTimeConst_usec": 10.0,
              "adcStartTimeConst_usec": 6.0,
              "rampEndTime_usec": 1000.0,
              "txOutPowerBackoffCode": "0x0",
              "txPhaseShifter": "0x0",
              "freqSlopeConst_MHz_usec": 4.78000020980835,
              "txStartTime_usec": 0.0,
              "numAdcSamples": 4060,
              "digOutSampleRate": 4096.0,
              "hpfCornerFreq1": 0,
              "hpfCornerFreq2": 0,
              "rxGain_dB": "0x5E"
            }
          }
        ],
        "rlChirps": [
          {
            "rlChirpCfg_t": {
              "chirpStartIdx": 0,
              "chirpEndIdx": 0,
              "profileId": 0,
              "startFreqVar_MHz": 0.0,
              "freqSlopeVar_KHz_usec": 0.0,
              "idleTimeVar_usec": 0.0,
              "adcStartTimeVar_usec": 0.0,
              "txEnable": "0x1"
            }
          }
        ],
        "rlFrameCfg_t": {
          "chirpEndIdx": 0,
          "chirpStartIdx": 0,
          "numLoops": 128,
          "numFrames": 1,
          "framePeriodicity_msec": 150.0,
          "triggerSelect": 1,
          "frameTriggerDelay": 0.0
        },
        "rlBpmChirps": [],
        "rlRfPhaseShiftCfgs": [],
        "rlRfProgFiltConfs": [],
        "rlLoopbackBursts": [],
        "rlDynChirpCfgs": [],
        "rlDynPerChirpPhShftCfgs": []
      },
      "rawDataCaptureConfig": {
        "rlDevDataFmtCfg_t": {
          "iqSwapSel": 0,
          "chInterleave": 0
        },
        "rlDevDataPathCfg_t": {
          "intfSel": 1,
          "transferFmtPkt0": "0x1",
          "transferFmtPkt1": "0x0",
          "cqConfig": 2,
          "cq0TransSize": 132,
          "cq1TransSize": 132,
          "cq2TransSize": 72
        },
        "rlDevLaneEnable_t": {
          "laneEn": "0x1"
        },
        "rlDevDataPathClkCfg_t": {
          "laneClkCfg": 1,
          "dataRate_Mbps": 600
        },
        "rlDevLvdsLaneCfg_t": {
          "laneFmtMap": 0,
          "laneParamCfg": "0x1"
        }
      },
      "monitoringConfig": {
      }
    }
  ],
  "processingChainConfig": {
    "detectionChain": {
      "name": "TI_GenericChain",
      "detectionLoss": 1,
      "systemLoss": 1,
      "implementationMargin": 2,
      "detectionSNR": 12,
      "theoreticalRxAntennaGain": 9,
      "theoreticalTxAntennaGain": 9
    }
  }
}

Hi Niladri,

To confirm, you are able to generate the FFT plots as shown in the screenshots, but it is incorrect?

Regarding your modifications from the default 22xx.mmwave.json,

1. Some of the modified parameters (numAdcSamples, digOutSampleRate, rampEndTime_usec) are a lot different from typical configurations. 

Please ensure they are valid for the AWR2243. The mmWave Sensing Estimator is a good tool to check this.

2. The comments in rawDataReader.m list assumptions made by the script. Please review this and make sure your modified configuration meets these assumptions. For example, the script assumes that 4 lanes are enabled for AWR2243, but only 1 has been enabled by setting laneEn: "0x1"

Thank you,

Jin