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IWR6843: IWR6843 Config file for people counter

gil albo
Intellectual 725 points
Part Number: IWR6843
Other Parts Discussed in Thread: MMWAVE-SDK

Hi ,

I want to create new cfg file for handling the 3d people counter, for several scenarios.

For this i read the mmwave_sdk_user_guide.pdf on how to use the commands, and used the the mmwave estimator .

I need assistance in loading the config result of the estimator to the cfg.

the main issue is this:

For example this is a provided cfg file for the 3d people counter (3Tx,4Rx).

profileCfg 0 60.6 25 7 40 0 0 82 1 128 5300 0 0 48

frameCfg 0 2 64 0 50 1 0
cfarCfg -1 0 0 8 4 4 0 7120
cfarCfg -1 1 0 4 2 3 0 7120

The SceneryParam -6.0 6 0 6 -2 2 

I want to load the following configuration

profileCfg 0 60 ? ? 128.36 0 0 (24.48 or 507 ?) 1 556 4533 0 0 ?

frameCfg 0 2 21 0 ? 1 0
cfarCfg -1 0 0 8 4 4 0 ?
cfarCfg -1 1 0 4 2 3 0 ?

thank you 

Gil

  • 0
    TI__Mastermind 30405 points

    Hi Gil,

    The configuration commands are described in the MMWAVE-SDK user guide.

    1. Referring to the details of the profileCfg command, the 3rd and 4th argument are Idle time and ADC start time respectively and the 8th argument is the ramp-slope in MHz/us. The last value is the RX gain which is not generated by the Sensing estimator so leave it as is from the original command. So, the modified command using the values from your screenshot will be:

    profileCfg 0 60 7  4.7 128.36 0 0 24.48 1 556 4533 0 0 30

    2. Referring to the details of the frameCfg command, the 5th argument is frame periodicity (in ms) so the modified command using the values from your screenshot will be:

    frameCfg 0 2 21 0 100 1 0 

    3. Refer to the details for cfarCfg in the SDK user guide and also the customization guide provided in the people counting lab.

    Also note that the above is just to illustrate the parameter mapping from sensing estimator to the configuration commands. Not all values may work with the people counting lab. Again, follow the customization guide provided in the people counting lab for more details of the process.

    Regards

    -Nitin

  • 0 in reply to Nitin Sakhuja
    Intellectual 725 points
    Thank you Nitin.
    I'll examine it.

    Gil