Unable to connect to the PPK

[Bernard Perrin]

Hi,

some time ago we ordered 3 PPKs. I tried one under a Mac with VmWare / Win7 with a PCA10040 board. It was working but I got surprising graphics. When I came back from holidays, the PPK was no more detected and the menu under Virtual Machine->USB & Bluetooth doesn't reveal a board. It is similar for the 3 boards. All have the DUT & Power switches at DK position. Changing the USB cable didn't help.

So I decided to use a PC with Win8. The PPK is not detected for the 3 boards. The SW installation ran correctly on the Mac/VmWare/Win7 and the PC/Win8 (Python 2.7.12 + SEGGER J-Link driver + python_packages.bat).

However when I run ppk.py I get the following error message:

Power Profiler Kit initializing...

Python version in use: 2.7.13

Checking installed packages pyside: 1.2.4 pyqtgraph: 0.10.0 numpy: 1.13.1 pynrfjprog: 9.6.0 Unable to connect to the PPK, check debugger connection and make sure the ppk is flashed. An error was reported by NRFJPROG DLL: -13 NO_EMULATOR_CONNECTED.

Do you have an idea what could be wrong? LED1 (green) is on, so the board seems powered.

Thanks in advance for any feedback.

Bernard

[Sigurd]

Hi,

Are you able to detect the nRF52-DK(PCA10040)? Try nrfjprog -i to list the serial number of the debuggers connected to the PC.

Also make sure that the SB9 solder-bridge on the nRF52-DK is cut when using the PPK. From Chapter 2 in the PPK user guide:

If the PPK is used with the nRF5x DK, prepare the nRF5x DK for power measurements by cutting the PCB track shorting solder bridge SB9 according to Preparing the development kit board. Do not short the solder bridge SB11/SB12.