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Trace both power consumption and CPU state at the same time with Energy Trace?

jose carlos cazarin
Intellectual 550 points

Other Parts Discussed in Thread: ENERGYTRACE

Is that possible? When I activate the CPU states tracking with Energy Trace, the power consumption data dissapears. I have to deactivate states tracking to be able to access it again.

I'm using the MSP432 launchpad

Thanks!

  • 0
    TI__Genius 16215 points

    Jose,


    You should be able to measure both Power and States at the same time. But, capturing the states requires the debugger to be active. This means that you are not measuring the true power system power. This is something to keep in mind if you want to measure the true energy and power measurement of the system.

    Which revision of MSP432 LaunchPad are you using? I just tested it on Rev 2.0 LaunchPad and seems to be able to measure Power, Energy, and States at the same time.

    Regards,

    William

  • 0 in reply to William Goh
    Intellectual 550 points

    Hi William. I'm using the rev 2.0 of the board (the red one).

    About measuring the "true power" of the system, what's the correct  way to do this?

    Currently i'm starting a debugging session in CCS, loading the program in the MSP, and then running the program using the "free run" option

    I noticed that when I use this option the power consumption is lower than when I use the normal Run mode (by pressing F8).

    About the Energy Trace part, now I've realized that I don't explained myself very well. I can measure the power consumption while tracing states with the graphics window (power and energy), but what I want is this window:

    This windows get's replaced by the window with the CPU states and I cant go back to it.

    Thanks for the answer"

  • 0 in reply to jose carlos cazarin
    TI__Genius 16215 points

    Jose,

    Sorry for not following this up earlier. Are you still stuck?

    jose carlos cazarin said:

    About measuring the "true power" of the system, what's the correct  way to do this?

    Currently i'm starting a debugging session in CCS, loading the program in the MSP, and then running the program using the "free run" option

    You're absolutely right on measuring it by setting it in "free run" mode.

    jose carlos cazarin said:
    This windows get's replaced by the window with the CPU states and I cant go back to it.

    There should be a button right above the "EnergyTrace Profile" that says if you want to switch between EnergyTrace+ and EnergyTrace. This toggles between the CPU states and Energy only measurement.


    Regards,


    William

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