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IWR1843BOOST: Decoding raw data captured using DCA1000EVM through MATLAB or any other scripting language

Arindam Ray
Prodigy 90 points
Part Number: IWR1843BOOST
Other Parts Discussed in Thread: DCA1000EVM,

Hi,

I used the DCA1000EVM board along with the IWR1843BOOST module to capture raw data from the sensor. I only had Rx0 and Tx0 enabled (one transmitter + one receiver). I am trying to read the .bin file from MATLAB or any other scripting language. The scripts provided on page 15 of this document provide results that are quite different than what I am capturing. Am I missing anything, maybe in the parameters that the script requires? The hardware switch on my DCA1000EVM is set to AR1642_MODE. Please let me know if any other information is required.

  • 0
    TI__Mastermind 40355 points

    HI, Ray:

    Page 15 Section 9.1 is for xwr1243 and xwr1443.  Since you are using xwr1843, you need to follow the section 9.2, which applied to xwr1642/1843/6843.  And I assume you are using mmwave studio GUI for data capture.  

    Best,

    Zigang

  • 0
    Prodigy 90 points

    Yes, I am using mmwaveStudio GUI. Can you guide me through these parameters required by the script in section 9.2 and where they can be set in the mmWaveStudio GUI? (Maybe using screenshots?)

    numADCSamples -> This is the sampling rate that I set in the chirp parameters is what I'm guessing.
    numADCBits  -> This is the bits per sample, where do we set this?
    numRX -> What do we set this to, for example when we have just enabled one receiver (maybe 1Tx + 1Rx antenna activated)?
    numLanes -> What should be this value?
    isReal -> What should be this value and where do we set it?

  • 0 in reply to Arindam Ray
    TI__Mastermind 40355 points

    Hi, Arindam:

    This simple code is just a reference to the data format listed in figure 10 in that document.   

    You can find information on the chirp programming at mmwave studio users guide at : C:\ti\mmwave_studio_02_01_01_00\docs\mmwave_studio_user_guide.pdf

    For example:  

    1) numADCSamples can be found in section 9.1 (profile configure)

    2) numADCBits, numRX and isReal can be found in section 7 (static config tab)

    3) numLanes is in section 8 (data config tab), but the number of lanes is always 2 for xwr1642/xwr1843/xwr6843.

    Best,

    Zigang