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IWR6843AOPEVM: Extending range of the level sensing demo

PJ
Prodigy 65 points
Part Number: IWR6843AOPEVM

Hi all,

I'm testing the level sensing lab on some large tanks and it seems like the code doesn't pick up anything greater than 20m, even when I increase the RangeLimitCfg to 200m.

RangeLimitCfg 2 1 1 200.0

Does anyone know if I can increase this range limit using the config or do I need to modify the MSS/DSS code?

Any pointers would be appreciated.

Thanks 

  • 0
    TI__Guru 50240 points

    Hi Patrick Joy

    Are you referring to the 68xx High Accuracy Lab? This lab is limited to about 20 m and will return the distance to three objects with about 1 to 2 mm of accuracy. In the Range Profile plot you should be able to see the different objects in your scene. Can you post a picture of your visualizer and scene?

    Regards,

    AG

  • 0
    Prodigy 65 points

    Hi Akash,

    Yes that is correct I'm using the 68x High Accuracy lab. I'm not using the Visualizer, I'm reading the raw data from the UART and parsing it.

    Do you know where this limit is set in the code, can I increase the limit?

    Thanks

  • 0 in reply to PJ
    TI__Guru 50240 points

    Hi Patrick

    The 20 m limit

    It is a system-level limit due to RF spec (i.e. chirp config). You should be able to edit the chirp config for increased range but I have not tested the Zoom-FFT for this use-case and I cannot comment on the results you might see.

    Regards,

    AG