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CCS: Energy trace problem

Muhsin Atto
Prodigy 60 points
Other Parts Discussed in Thread: ENERGYTRACE, MSP430FR6989

Tool/software: Code Composer Studio

I run a simple application on MSP430FR6989. I configured all ports as output and with zero volt. Then the processor enters sleep mode LPM3 to measure the power consumption in sleep mode. I monitored all units through EnergyTrace++ and every thing is perfect but I get about 0.51 mW average power consumption. Why?. It should be several micro watt.

Thanks in advance for your help.

  • 0
    Prodigy 60 points
    The measured power is 5.5 mW not 0.5 mW.
  • 0 in reply to Muhsin Atto
    TI__Guru**** 169864 points
    Hi,

    The debug subsystem of the device will consume a considerable amount of energy when compared to the absolutely minimum power of a low power mode- this is the case when you are using EnergyTrace++ with an active debug session and all systems operative.

    To measure the absolutely lowest power from the device, you need to use the plain EnergyTrace (without a target connected) - check section 3.3.1 of the following document:

    www.ti.com/.../slaa603.pdf

    Hope this helps,
    Rafael