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IWR1443BOOST: Import chirp database configuration file

Prudhvi Sagar
Genius 3785 points
Part Number: IWR1443BOOST
Other Parts Discussed in Thread: IWR1443, , MMWAVE-SDK

Hello,

I am unable to import the configuration file of "100meter Optimized Level Sensing Field Transmitter" in Sensing Estimator. Does the BOOST board support this particular application or should the antennas have to be redesigned? The application also recommends 1024pt FFT but neither Sensing Estimator nor Demo Visualizer has this option. Does changing other parameters automatically apply 1024pt FFT technique?

Regards,

Prudhvi Sagar

  • 0
    TI__Mastermind 30405 points

    Hi Prudhvi,

    The latest release of mmWaveSensingEstimator seems to have broken the "Load in Sensing Estimator" functionality in the Chirp Database. This is because the latest fully resolved URL for the sensing estimator includes the version number at the end as shown:

    User types dev.ti.com/mmwaveSensingEstimator and it resolves to the following:

    dev.ti.com/.../mmWaveSensingEstimator/ver/1.3.0/ 

    This breaks the chirp URLs in chirp database. This will be fixed in a future release but in the meantime, you can use the following workaround:

    1. Copy the Chirp URL from the "Load in Sensing Estimator" button
    2. Manually insert the highlighted string in the URL at the location shown and paste the URL in the browser
    3. dev.ti.com/.../mmWaveSensingEstimator/ver/1.3.0/?platform=IWR1443&num_rx=1&num_tx=1&tx_gain=25&rx_gain=25&freq_range=77&bandwidth=4000&tx_power=12&temp=20&range=100&range_resolution=10.86&velocity=40&velocity_resolution=50&fps=5&rcs=1&detection_loss=2&system_loss=1&implementation_margin=2&detection_snr=15

    For your second question: The Hardware Accelerator on IWR1443 supports 1024 point FFT and this is configured in the application C code running on the Cortex R4F core. Please look in the file C:\ti\mmwave_sdk_02_01_00_04\packages\ti\demo\xwr14xx\mmw\data_path.c in function MmwDemo_config1D_HWA.

    Regards

    -Nitin

  • 0 in reply to Nitin Sakhuja
    Genius 3785 points
    Hello,
    After following your steps I was able to open the file in Sensing Estimator but how do I use it on the BOOST Board. Demo visualizer doesnt support it. Is programming the only way to load this application? Which specific program has to be used for this application?

    Regards,
    Prudhvi Sagar
  • 0 in reply to Prudhvi Sagar
    TI__Mastermind 30405 points

    Hi Prudhvi,

    As detailed in the Assumptions and Miscellaneous Information section for this chirp config, this configuration requires higher antenna gains compared to the gain provided by the IWR1443BOOST antenna to achieve the 100m range. Additionally, this particular configuration cannot work with the SDK Out of Box demo processing chain without modifications to the SDK demo processing chain (see under Testing and Results section).

    In general, the configuration with mmWaveSensingEstimator (.json file) can be loaded back only in the Sensing Estimator to recall a previously saved configuration. It cannot be directly loaded within the SDK Out of Box demo. You'll need to understand the Out of Box demo configuration file and modify the profile and frame config values manually based on the new configuration values generated with the sensing estimator.

    Please refer to the MMWAVE-SDK user guide for details on the Out of Box demo and configuration parameters. The configuration file format and all the parameters are explained in detail in the SDK user guide under the section "Configuration (.cfg) File Format".

    Thanks

    -Nitin

  • 0 in reply to Nitin Sakhuja
    Genius 3785 points

    Hello,

    So the higher gains can be achieved by adjusting in the code or requires additional hardware changes?

    Regards,

    Prudhvi Sagar

  • 0 in reply to Prudhvi Sagar
    TI__Mastermind 30405 points

    The TX / RX antenna gains are a function of the antenna and board design. The IWR1443BOOST antenna has TX and RX antenna gains of 9dB each.  To achieve the 100m range for this configuration, you will need to design an antenna with 25dB TX and RX antenna gains as noted on the 100m level sensing field transmitter chirp page in the Assumptions and Miscellaneous Information section.

    TX Antenna Gain (dB) 25* (EVM TX antenna gain = 9)
    RX Antenna Gain (dB) 25* (EVM TX antenna gain = 9)

    *Note 1: In order to get 100 meter range, this configuration assumes higher TX and RX antenna gains than those provided by the xWR1443 EVM. This means that the detectable range would be less with the xWR1443 EVM due to lower antenna gains.

    Thanks

    -Nitin

      

  • 0 in reply to Nitin Sakhuja
    Genius 3785 points
    Hello,
    Thank you for the support. Is there any support provided to modify the board and antenna to improve the gain.

    Regards,
    Prudhvi Sagar
  • 0 in reply to Prudhvi Sagar
    TI__Mastermind 30405 points

    Prudhvi,

    TI does not provide antenna design services or support but we have third party module design partners who have designed mmWave Modules for specific applications. You can find the list of the third party antenna modules and links to corresponding vendor's website on the mmWave Antenna Database link given below. Please note that you will need to approach and work with the the corresponding vendors directly.

    mmWave Antenna Database

    Thanks

    -Nitin