Hello Navami,

Thanks for reaching out.

Is the graph you are referring to the one that shows the current consumption over time? I do not see a graph on the attached image.

One thing to consider is that power consumption is significantly increased while being in debug mode. The device should be flashed and power cycled before running power measurements. You can run Energy Trace outside of debug mode.

BR,

David.

Hi,

Please confirm: When I run Energy Trace outside of debug mode, I can see the energy and current graph (fig 1). Similarly, when I open Energy Trace with debug mode enabled, I can see the energy and power graph (fig 2). Is this correct, or am I missing something?

Also, how can I analyze these graphs? Can I observe different power transitions?

Hello Navami,

What you describe is correct.

What do you mean by power transitions? Are you referencing to the power levels the MCU works with?

May I ask what type of analysis are you looking for?

BR,

David.

Hi David

Thanks for confirming

Power transitions means power modes. (active , idle or standby modes).

I want to know, when the device in standby or idle or active what is the power consumption.

Hello Navami,

cc2340r5 does not support Energy Trace ++, which allows you to see the different CPU power states you mention. 

You could look into the power driver here to get information about the power states and transitions.

Hope it helps.

David.

Hi David,

Understood.

With the CC2340R5 now supporting only Energy Trace, what tests can I conduct?

Hello Navami,

You can run Energy Trace to see the current draw consumption of your device during runtime plotted against time, get power consumption metrics (max, min, mean current draw) and battery lifetime estimates.

BR,

David.

Hi David,

How accurate is those values.

Hi David,

In the document which you shared its mentioned that  "highest precision current range and it is suitable for the ultra low power devices such as MSP430 and MSP432P" what is the meaning of this

Hello Navami,

It is not a specific feature just a description of the tool. Please see the accuracy numbers for details. The cc23 family is also able to work with Energy Trace (however not with Energy Trace ++) as seen in the User Guide and here: https://www.ti.com/tool/ENERGYTRACE.

BR,

David.