Using Power Profiler Kit II for the PCA10040 / nRF52832

[Anne van Rossum]

Hi,

Also asked your AI, but if I combine the information on https://docs.nordicsemi.com/bundle/ug_ppk2/page/UG/ppk/measure_current_source_meter.html with that on https://docs.nordicsemi.com/bundle/ug_nrf52832_dk/page/UG/dk/prepare_board.html  I see

A cable attached to the dev kit.

While the other source indicates "Note: While SB12 is shorted, the DK must not be powered from the USB if there is an external supply connected because the protection diode has been bypassed.".

What should I be doing here?

In the app only the PPK is in the drop-down and it has the error

17:36:26.819

Connected to device with the serial number D88C67BC6911 and family: Unknown

17:36:26.820

Note: no pre-compiled firmware is available for the selected device.

17:36:26.820

Error while setting up device with the serial number D88C67BC6911

17:36:26.821

"No device setup found"

17:36:26.821

Deselected device

17:36:26.822

Deselecting device

I don't want to destroy this dev kit. As according to the instructions I have

* Put P22 in series with the load, cut the PCB track shorting solder bridge SB9.
* If using an external power supply, short solder bridge SB12 to bypass the protection diode, which would otherwise give a voltage drop.

What should I do?

Was soldering the bridge SB12 actually not necessary?

Kind regards,

Anne

[Anne van Rossum]

Ah, dumb. Of course it already states that it's optional. Could have just powered it over USB from the PPK2 itself and didn't need to bridge it. But now I'm at it, I'll just use an external supply to have more accurate readings.

[Anne van Rossum]

The "Error while setting up the device" was actually caused by a missing udev rule. One can just download a package for this at github.com/.../nrf-udev