CCS: Energy trace problem

Muhsin Atto

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.

over 7 years ago

0 Muhsin Atto over 7 years ago

Prodigy 60 points

The measured power is 5.5 mW not 0.5 mW.

0 desouza over 7 years ago in reply to Muhsin Atto

TI__Guru**** 171449 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

Code Composer Studio™︎

Code Composer Studio forum

CCS: Energy trace problem