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Interfacing three INA3221 and "simultaneously" monitor them with one SM-USB-DIG running three windows of INA3221-EVM software

Dennis Yen
Prodigy 20 points
Other Parts Discussed in Thread: INA3221

Hi, 

my board has three INA3221 and I'd like to monitor them virtually "simultaneously" on one PC with three windows (on a Window 7 machine) of the INA3221-EVM software, as shown below.  Is this possible?

thanks

-Dennis

  • 0
    TI__Genius 16510 points
    Hello Dennis,

    I am going to move your question to the current shunt monitor forum for better support, since your question is about the INA3221
  • 0 in reply to Jonathan Valdez
    TI__Mastermind 32610 points

    Dennis,

    With the current hardware and software configuration this is not possible.  There are 2 alternatives and they have some trade-offs

    1.Use one software and one SM-USB-Dig and configure and read the registers of one device at a time.  This will not give you the simultaneous measurements but no changes in the software is required.

    2.Grab source code and add three monitoring for each I2C address you are using.  This requires software manipulation in Labview.  The source code is available for download.

    Please let me know if I can help further.

    Thanks,

    Javier Contreras