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Original question:

ADC12DJ5200RFEVM: Automating Measurements

ADC12DJ5200RFEVM: coherent FFT data logging with automation dll

Aravind Venkitasubramony
Intellectual 825 points
Part Number: ADC12DJ5200RFEVM

Hi 

Is it possible to get the FFT data of both the channels ( assuming a two channel ADC EVM) simultaneously? I notice the parameter called "Active Channel" which would suggest that I cannot get coherent/simultaneous measurements of two channels and will have to toggle the active channel before I can get both the channel FFTs

  • 0
    TI__Expert 4070 points

    Hello Aravind,

    The HSDCPro captures data for both channels, the active channel parameter in the DLL is only used for displaying which channel is actively showing in the GUI. It is not possible to export fft data using the hsdc pro dll, that being said you can export the raw time domain code data to a csv file, this will dump a csv file where each column is the data for separate channels and then from here you can take the fft of the data to obtain the fft results. 

    best,

    Eric Kleckner

  • 0 in reply to Eric Kleckner
    Intellectual 825 points

    Hi Eric

    I see that there is an option to save FFT data as a csv file mentioned in the manual. Is that not correct? I am using MATLAB. 

  • 0 in reply to Aravind Venkitasubramony
    TI__Expert 4070 points

    Hello,

    Yes you can use the get_FFT_Data function to get the data directly from memory, this you will have to specify a channel, you can also use Save FFT data and measurements as csv, for this you will have to switch between channels.To answer the previous question when you pass a capture event data will be captured by both channels.

    Best,

    Eric