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Original question:

MSP-ULTRASONIC-DESIGN-CENTER: Source Code

MSP-ULTRASONIC-DESIGN-CENTER: MSP430FR6047

Andreas Kuhn
Prodigy 10 points
Part Number: MSP-ULTRASONIC-DESIGN-CENTER
Other Parts Discussed in Thread: MSP430FR6043

Good day!

I'm using the "Ultrasonic Sensing Design Center" software. The lowest resonance frequency that can be entered on the user interface is 780 kHz.

In my application I would like to lower this frequency down to 500 kHz. Is this possible and how?

Thank you and best regards


Andi.

  • 0
    TI__Genius 12615 points

    Hi Andi,

    It's not possible without modifying the GUI code.  Another alternative would be to use a gas metering platform (such as the MSP430FR6043).  This platform would enable you to configure your transducers to operate at these lower frequencies.

    BR,
    Leo

  • +1 in reply to Leonardo Estevez
    Prodigy 10 points

    Hi Leo

    I have the gas sensor EVM430FR6043 as well. The problem is that I can't go higher than 550 kHz. My expected resonance frequency is around 700 kHz. Is there away to set it?

    Thank you and best regards


    Andi.

  • 0 in reply to Andreas Kuhn
    TI__Genius 12615 points

    Hi Andreas,

    You can unjar the USS.jar file using a tool like 7zip. You'll find an xml file that is called:

    cmd_setup.xml under DeviceConfig

    In it you'll find where the min/max values for these parameters are set here:

    <cmd>
    <id>9B1</id>
    <waterLabel>Transmit frequency (kHz)</waterLabel>
    <gasLabel>Transmit frequency (kHz)</gasLabel>
    <waterEnabled>true</waterEnabled>
    <gasEnabled>true</gasEnabled>
    <gasMin>80</gasMin>
    <gasMax>550</gasMax>
    <gasDefault>170</gasDefault>
    <waterMin>772</waterMin>
    <waterMax>2500</waterMax>
    <waterDefault>1000</waterDefault>
    <spinnerInterval>10</spinnerInterval>
    <waterHoverText>Pulse output frequency</waterHoverText>
    <gasHoverText>Pulse output frequency</gasHoverText>
    </cmd>

    Modify the values and resave the file. Then relaunch the GUI. There may also be checks on the platform side that need be modified to accept the configuration when you request an update.

    BR,
    Leo

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