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Compiler/IWR6843AOPEVM: Energy Trace Technology of IWR6843

ScottLin
Prodigy 210 points
Part Number: IWR6843AOPEVM
Other Parts Discussed in Thread: IWR6843, MMWAVEICBOOST, IWR6843AOP

Tool/software: TI C/C++ Compiler

Dear all,

I want to detect the energy of IWR6843 when it execute the Vital Signal Detect application. I know the Energy Trace Technology don't support that, although mmWaveBOOST has the XDS110 port.

Does it have any solution to detect the energy when it execute the application?

Best Regards,

Chun Chieh

  • 0
    TI__Mastermind 23725 points

    Hello

    Your closest option may be to read/measure power from the  board power rails during the execution.

    Please check the board  Chematic/layout to understand the tap points.

    Thank you,

    Vaibhav

  • 0 in reply to Vaibhav Mahimkar
    Prodigy 210 points

    Hi,

    I use two board at same time, because the vital signal need two boards (IWR6843AOP + mmWaveICBOOST),. If I want to detect the application cost of energy, then I need to detect both of them or I just detect the mmWaveICBOOST?

    And the board power rails only has the input voltage can detect in mmWaveICBOOST by user guide introduction. 

    Can I detect the dynamic energy when the application executing?

    Best Regards,

    Chun Chieh

  • 0 in reply to ScottLin
    TI__Mastermind 25835 points

    Hello Chun Chieh,

       Primarily most of energy is consumed by the individual 4 rails of the mmWave sensor, if you could measure the power from these rail and from this you could compute the power consumption.

    These power are measured through current sense resistors and Digitized through ADC and read through I2C interface. I2C interface and ADC sampling rates are slow compared to chirp timings hence, it’s not possible to measure dynamic energy.

    If you really want to measure dynamic energy then you could connect high bandwidth scope and probe across shunt resistor and calculate energy consumption.

    Thanks and regards,

    CHETHAN KUMAR Y.B.