Other Parts Discussed in Thread: ENERGYTRACE, RF430FRL152H, MSP-FET
I am working on a project using RF430FRL152HEVM dev board. My goal is measure the chip energy consumption in LPM3 mode while running my program. For this I am using EnergyTrace technology, however, I was not able to have less than 0.11mA of current consumed, and less than 0.37mW of power overall, which is much too much according to the datasheet and estimated power consumption of LPM3 mode.
My question is, how exactly EnergyTrace is measuring the current? Do the other ICs on the board affect the EnergyTrace readings? For example, the RF430FRL152H chip is powered from the MSP-FET debugger, but the voltage there is stepped down via the TPS72215 chip, which also powers the phototransistor. I would also like to ask what exactly EnergyTrace measures, is it the power consumed by the microcontroller (and only the microcontroller) or is it the power consumed by the entire board?