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IWR1443BOOST: CW raw data capture

Marc Mutschler
Prodigy 120 points
Part Number: IWR1443BOOST
Other Parts Discussed in Thread: DCA1000EVM

Hello there,

I would like to use the IWR1443BOOST to collect "simple" IQ raw data (just center frequeny without frequency modulated ramp instead of FMCW). Besides that, I also own the DCA1000EVM to be able to access the data if its usefull.

Is this possible with this kind of setup using the mmWaveStudio?

If its possible with mmWaveStudio: how can I do this and is it possible to record raw data in addition to the mmWaveStudio (with Matlab or Python)?

Thanks a lot for any replay and ideas.

  • 0
    TI__Mastermind 40495 points

    If you look at the section 11 in C:\ti\mmwave_studio_02_01_00_00\docs\mmwave_studio_user_guide.pdf, you will find information about capture continuous waveform.  

    Best,

    Zigang

  • 0 in reply to zigang Yang
    Prodigy 120 points

    Hi Zigang,

    thank you for the reply. The function introduced in mmwave_studio_user_guide section 11 was already known to me, thank you for the confirmation. 

    Is there any information how to encode the resulting .bin-file "adc_data.bin" to process the data in matlab? 

    Best regards
    Marc

  • 0 in reply to Marc Mutschler
    TI__Mastermind 40495 points

    Hi, Marc:

    The data format is listed on section 24.6 of radar studio user's guide at C:\ti\mmwave_studio_02_01_00_00\docs\mmwave_studio_user_guide.pdf:   

      

  • 0 in reply to zigang Yang
    Prodigy 120 points

    Thanks Zigang,

    so, this is the same data structure as known from the FMCW raw data file. 

    Two more questions:

    1: Why is it not possible to choose  a sample frequency smaller than 2000 ksps? 

    2: Is it possible to define a certain measurement time?  Pressing the capture and stop capture button is very complicated.

  • 0 in reply to Marc Mutschler
    TI__Mastermind 40495 points

    1: Why is it not possible to choose  a sample frequency smaller than 2000 ksps? 

    [ZY]  This is a hardware limitation.  

    2: Is it possible to define a certain measurement time?  Pressing the capture and stop capture button is very complicated.

    [ZY] In continuous mode, TSW1400 set-up allows user to specify number of bytes to collect.  In DCA1000, the user can not specify bytes to collect and instead it is expected user must manually issue a STOP command for baseline operation. If STOP command is not provided – DCA1000 will eventually enter a buffer overflow condition. The data up to the buffer overflow is successfully captured, but DCA1000 enters an error state and requires users to RESET the DCA1000 via Studio before able to make another capture.

    Best,

    Zigang