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MSP430FR6047: MSP430FR6047-EVM flow meter - how to access measurements

Stephen Allen99
Intellectual 490 points
Part Number: MSP430FR6047

We are developing a water meter using the MSP430FR6047 and the USS library as our reference design.

We are having trouble in getting the results of our flow measurements, so that our code can then use the results (to collect data, and also tally Liters consumed, ...).

We can access the floating point results in hmi.c, but we would like to access the fixed point calculations as using these saves energy.

Can you tell us how we can access the results inside USS_Algorithms_Results_Fixed_Point such as iq16VolumeFlowRate?

Thanks much!

  • 0
    TI__Mastermind 39255 points

    Hi Allen,

    You can reach the fixed point results in struct USS_Algorithms_Results_fixed_point. It defines in ussSwLib.h. 

    Best regards,

    Cash Hao

  • 0 in reply to Cash Hao11
    TI__Genius 16840 points

    Hi Allen,

    Just to add a few more details, the library has 2 functions to run algorithms:

    USS_runAlgorithmsFixedPoint and USS_runAlgorithms.

    As you can see, the first function runs the algorithms in fixed point.

    One of the parameters of this function is a pointer to a structure to store results in fixed point (USS_Algorithms_Results_fixed_point *results).

    In the demo application, the function is called as:

    code = USS_runAlgorithmsFixedPoint(&gUssSWConfig,&algResFixed);

    So, you can access the fixed point results in algResFixed.

    Regards,

    Luis R

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