NRF6707 Power Profiler kit

RE: NRF6707 Power Profiler kit

haakonsh — Tue, 26 Jun 2018 07:56:35 GMT

I'm sorry, but I'm struggling to understand you question. Do you mean to ask if the current measured for the two scenarios the same?

PPK mounted on the DK as a shield
PPK mounted on the DK as a shield, but measuring an external DK connected at VDD and GND.

If this is the case then no they are not the same. You have to follow the Measuring current instructions. Cut SB9 and connect positive voltage(External DUT port on PPK) to the P22 pin that is closest to the Debug Out port, and connect negative voltage to DK GND. By cutting SB9 you isolate the nRF52832 from the rest of the DKs power supply enabling current measurements on the DK.

RE: NRF6707 Power Profiler kit

Jim — Tue, 26 Jun 2018 00:59:01 GMT

Sorry, I didn't say it clearly. I mean to say that the test current is the same for the two connections.
1.PPK and nrf52 DK connected via ARDUIND
2. Connect VDD, GND of nrf52 DK to PPK

RE: NRF6707 Power Profiler kit

haakonsh — Mon, 25 Jun 2018 12:11:19 GMT

Hey Jim,

The PPK does not impact the GPIOs of the nRF52832 on the DK.
"Is there a difference between the NRF6707 Power Profiler kit and the nrf52 DK link through the ARDUIND plug-in and the NRF6707 Power Profiler kit and the nrf52 DK's VDD and GND links only?" I do not understand the question.
Yes, there's some current leakage between the nRF52832 and the Segger OB J-link. You will therefore see a slightly higher current consumption on the DK than on an external board.
Yes, you can measure the current of any external circuit (1.8 - 3.6V, 0 - 70mA). Newer versions of the PPK will be released in the future that supports measurements of higher currents, and maybe additional features.

Cheers,

Håkon.