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IWR6843ISK: Question about mmWave Sensing Estimator code

moon sangik
Intellectual 320 points
Part Number: IWR6843ISK

I am looking at the mmWave Sensing Estimator code.  

and I have two question about   idle_time function 

( below part is idle_time code  )

var idle_time = function(valid_sweep_bandwidth) {
if (valid_sweep_bandwidth <= 1000) {
return 2;
} else if (num_virtual_rx <= 2000) {
return 5;
} else if (num_virtual_rx <= 3000) {
return 6;
} else {
return 7;
}
};

1. why does num_virtual_rx use instead of valid_sweep_bandwidth ? 

2. which case is num_vertual_rx > 2000 ?

Thanks

  • 0
    TI__Mastermind 40495 points

    HI, Moon:

    IT looks like a typo to me, can you point me to these lines of code?

    Best,

    Zigang

  • 0 in reply to zigang Yang
    Intellectual 320 points

    Dear zigang Yang

    Thanks for your support

    you can find issue code at line 172 of "input.js file" which is the source file of "mmWve Sensing Estimator"

    and also you can find issue code to use search function .

    At that time you can use the kew_word "idle_time" which is the name of function .

    (It's not "idle_time_minimum" but "idle_time" Plaease Be careful)

    I have two more question about source code of "mmWaveSensingEstimator"

    1. carrier_frequency function ( Line 347 @ "input.js" file)

    return (starting_frequency*1000+ramp_slope*adc_valid_start_time+number_of_samples_per_chirp/(2*ramp_end_time*1000))/1000;

    In above code " /1000 "cannot be applied because " /1000 " is not including return value .

    Is it right?

    2. please let me know when operate "update_input" function

    -->. periodically operate? or "input event occrured case?"

    Thanks

    best regard

  • 0 in reply to zigang Yang
    Intellectual 320 points

    Dear zigang Yang

    Thanks for your support

    you can find issue code at line 172 of "input.js file" which is the source file of "mmWve Sensing Estimator"

    and also you can find issue code to use search function .

    At that time you can use the kew_word "idle_time" which is the name of function .

    (It's not "idle_time_minimum" but "idle_time" Plaease Be careful)

    I have two more question about source code of "mmWaveSensingEstimator"

    1. carrier_frequency function ( Line 347 @ "input.js" file)

    return (starting_frequency*1000+ramp_slope*adc_valid_start_time+number_of_samples_per_chirp/(2*ramp_end_time*1000))/1000;

    In above code " /1000 "cannot be applied because " /1000 " is not including return value .

    Is it right?

    2. please let me know when operate "update_input" function

    -->. periodically operate? or "input event occrured case?"

    Thanks

    best regard

  • 0 in reply to moon sangik
    TI__Mastermind 40495 points

    HI, 

    Sorry for the late reply, I am still consulting our expert here.

    Best,

    Zigang

  • 0 in reply to moon sangik
    TI__Mastermind 40495 points

    HI, Moon:

    It turns out that we will not be able to debug the source code for sensor estimator.  Let us handle it in a different way.

    What are you trying to achieve here?  Is the current sensor estimator gave you wrong results? 

    Best,

    Zigang