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LP-CC2652RB: How to characterize power using breakpoints and EnergyTrace?

Part Number: LP-CC2652RB
Other Parts Discussed in Thread: ENERGYTRACE

This link confirms that breakpoints and EnergyTrace are incompatible (https://e2e.ti.com/support/tools/ccs/f/81/p/528211/1924879). I really want to see how my initialization procedure is affecting current consumption, so I'm wondering how to do this? My thoughts on a hack would be to add a delay after each step and toggle an LED to demarcate each step in free-run mode. Are there any tricks I'm missing that might help? Thanks

  • Hi,

    Your idea seems to be a valid solution.

    An other solution could be to identify the "power signature" of each step. This has the advantage to not add some unwanted power consumption. However, depending on the nature of the different steps, this could be a bit difficult.

    Let us know which solution you pick!

    Kind regards,

  • Thanks, Clément. I just threw an ammeter inline and stepped through. That gave me some idea of the deltas. And just a note to self and others: keeping cJTAG pins connected will keep the device 'awake', those need to be removed to realize the power savings of Task_sleep().