Average and Trigger windows show different currents

RE: Average and Trigger windows show different currents

Saxman58 — Thu, 01 Oct 2020 22:25:40 GMT

Actually, I find that just clicking the Stop button on Segger Studio is enough. I don't physically have to disconnect anything, or flip any board switches, which is great.

RE: Average and Trigger windows show different currents

Kenneth — Thu, 01 Oct 2020 16:02:04 GMT

Sounds good. I do believe that you should be able to run 'nrfjprog --debugreset' from command line to exit debug mode without disconnecting the debugger/programmer.

RE: Average and Trigger windows show different currents

Saxman58 — Thu, 01 Oct 2020 11:50:57 GMT

Thanks, I was wondering how to see the resistor calibration and switch levels, so now I know. I reset the calibration as you suggested.

I did find that experimenting with the different options for the electrical setup gave me a combination with more consistency between the windows, and more believable results. I'm now using an external supply for less noise, but still leaving the USB connected for programming the DK board, and another DK board to the Debug In on the PPK board to get the data. That lets me switch between programming/debugging mode and power sampling mode very quickly. I just have to remember to exit the debugger before I start the Power Profiler sampling, and vice versa.

RE: Average and Trigger windows show different currents

Kenneth — Thu, 01 Oct 2020 11:33:23 GMT

Can you try to push "ctrl+alt+shift+A", this should pop up some additional controls. Try to push "reset calibration".

In general the average should be more precise, since trigger is mainly meant to give a plot of the curve you are looking for. Though the difference her was very big I agree, it may have been damaged.