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RTOS/IWR1443BOOST: CLI parameters

jason Anderson
Expert 1080 points
Part Number: IWR1443BOOST

Tool/software: TI-RTOS

Hi,

I would like a further explanation on the values of the CLI parameters of the High Accuracy Lab. Where can i find these? preferably full documentation.

focus on mm precision on most available ranges, as far as possible and near as possible. 

cheers

  • 0
    TI__Genius 11405 points
    Hi,

    The CLI parameters are described in the following two documents: mmwave SDK user guide (inside of mmwave SDK installation path) and high accuracy 14xx lab user guide (inside of high accuracy 14xx lab folder). Let me know if you have any question of the any of the cli.

    The recommended configuration is also included in the released lab folder. The profile information is also available in the lab user guide. In addition, Even max distance can be calculated using the chirp profile, for example, profile_2db max range is 20m and profile_2de max range is 45m. it strongly depends on the test environment. For example, for profile_2de, if testing oil surface, max distance is 5m. If we have EVM and water surface, we can achieve 1mm accuracy and maximum range of 32m. As to the near range, mmwave application in general has min. of distance of 4-5 cm.

    Regards,
    Michelle
  • 0 in reply to Michelle Liu
    Expert 1080 points
    Hi,

    I can't seem to find the minimum and maximum values for the CLI parameters. I checked the lab and the documentation: www.ti.com/.../swru529a.pdf
    but couldn't find values. Is there any documentation i'm missing? Or am i supposed to reverse engineer it based on the GUI for the mmwave demo lab?

    Are the values in the mmwave demo lab the highest and lowest values in the sliders?

    Thanks in advance!
  • 0 in reply to jason Anderson
    TI__Genius 11405 points
    Hi,

    The range plot is showing the range from bin 0 to bin X where X is fft size (number of ADC samples rounded up to power of 2). For example, if you have 1000 ADC samples, the fft size is 1024. Based on cli parameters of the freq slope and other parameters, you can calculate the resolution of each bin. The maximum range is resolution times X.

    More details of how to calculation resolution can be found under mmwave SDK demo doxygen. For example, here's the path on my PC:
    C:\ti\mmwave_sdk_01_02_00_05\packages\ti\demo\xwr14xx\mmw\docs\doxygen

    The limitation of near DC range is from analog side. What's your range of interest? And what kind of objects to be detected?

    Thanks and Regards,
    Michelle
  • 0 in reply to Michelle Liu
    Expert 1080 points
    Hi,
    Thank you very much. I am still sorting out the possibilities for my project. The current idea is to simply do one range measurement a day. Probably water to be detected to mm accuracy. We have several ideas in mind so there is no one requirement. Thank you.
    I will get back to you when i have more.

    cheers
  • 0 in reply to jason Anderson
    Expert 1080 points
    quick question,
    why is there no documentation for xwr14xx in the C:\ti\mmwave_sdk_02_00_00_04\packages\ti\demo folder?
  • 0 in reply to jason Anderson
    TI__Genius 11405 points

    Hi Jason,

    Please refer the mmwave SDK webpage: for supported platform.

    mmwave SDK 2.0.0.4 supports only xWR16xx ES2.0

    mmwave SDK 1.2.0.5 supports xWR14xx ES2.0 and xWR16xx ES1.0.

    Thanks and Regards,

    Michelle