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IWR6843: Access and send out data after 1st FFT over LVDS ???

BL
Intellectual 615 points
Part Number: IWR6843


Hi

We're considering the TI IWR6843 chip for our new application, and we have some questions regarding the chip functionalites.

In our application we want to capture data and perform range FFT in TI IWR6843 chip, then sending out only a part of the FFT-data over LVDS to another DSP for performing the rest of the signal processing.

So our questions are:

    - Is it possible with the TI IWR6843 chip to: capture chirp -> perform range FFT -> send out over LVDS -> capture chirp -> perform range FFT -> send out over LVDS...... and so on  ?

    - Is it possible to only send out a part of the FFT data, e.g only 128 fft data points after performing range FFT with 1024points ?

Thanks very much.

Bien

  • 0
    TI__Mastermind 30405 points
    Hi Bien,

    I'm looking into this question and will get back to you next week. Thanks for your patience.

    Thanks
    -Nitin
  • 0 in reply to Nitin Sakhuja
    TI__Mastermind 30405 points
    Hi Bien,

    Theoretically, It should be possible to send Range FFT data over the LVDS interface but this is not a supported use case and we don't have any example to demonstrate this. You will need to understand the CBUF driver which is used to transfer data over LVDS or CSI2 TX. The doxygen documentation for the CBUF driver is available in: C:\ti\mmwave_sdk_03_01_01_02\packages\ti\control\mmwavelink\docs\doxygen\html\index.html

    Regards
    -Nitin