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IWR1642BOOST: what's the meaning of chirpProcessingMarginInUsec and frameProcessingMarginInUsec in ppcount demo

user5906854
Intellectual 370 points
Part Number: IWR1642BOOST

Hi, When I read the src of ppcount demo, I have a question about what's the meaning of chirpProcessingMarginInUsec and frameProcessingMarginInUsec in ppcount demo? Thanks!

  • 0
    TI__Mastermind 28055 points
    Hi Wenhao,

    These are debug values reported by the device. When the device receives a chirp for the BSS (radar frontend), it completes a FFT on the data and stores the result. The chirpProcessingMargininUsec is the average time to do this over the last frame. Time is in micro-seconds.

    The frameProcessingMarginInUsec is the time required to generate the pointcloud after the device has completed all chirps in the frame.

    Regards,
    Justin