Failed to start the PPK.

[MikeLin]

Hello,

I use PPK to measure the power consumption.

but I always get :  Failed to start the PPK.

I have measured it last week and it is work.

and this is nrf connect log:

Fullscreen 2018-07-23T08_27_08.001Z-log.txt Download

2018-07-23T08:27:09.150Z INFO Application data folder: C:\Users\Lin\AppData\Roaming\nrfconnect\pc-nrfconnect-ppk
2018-07-23T08:27:09.274Z INFO App initialized
2018-07-23T08:27:09.300Z DEBUG App pc-nrfconnect-ppk v2.0.0 official
2018-07-23T08:27:09.300Z DEBUG App path: C:\Users\Lin\.nrfconnect-apps\node_modules\pc-nrfconnect-ppk
2018-07-23T08:27:09.300Z DEBUG nRFConnect 2.4.0 is supported by the app (^2.3.0)
2018-07-23T08:27:09.300Z DEBUG nRFConnect path: C:\Users\Lin\AppData\Local\Programs\nrfconnect\resources\app.asar
2018-07-23T08:27:09.300Z DEBUG HomeDir: C:\Users\Lin
2018-07-23T08:27:09.300Z DEBUG TmpDir: C:\Users\Lin\AppData\Local\Temp
2018-07-23T08:27:13.470Z INFO PPK opened
2018-07-23T08:27:13.471Z INFO Initializing the PPK
2018-07-23T08:27:14.176Z INFO Segger serial:  682116104
2018-07-23T08:27:14.176Z INFO Segger speed:  2000  kHz
2018-07-23T08:27:14.176Z INFO Segger version:  J-Link OB-SAM3U128-V2-NordicSemi compiled Jul  4 2018 16:22:02
2018-07-23T08:27:20.178Z ERROR Failed to open RTT channel
2018-07-23T08:27:20.179Z DEBUG RTT open timed out
2018-07-23T08:27:20.185Z INFO PPK closed
2018-07-23T08:27:25.182Z ERROR Failed to start the PPK.
2018-07-23T08:27:25.182Z DEBUG 

[AntonKa]

Hi ,all

I also encountered this fail .

What I had to do is to born PPK firmware once again.

Steps to reproduce :

    1. Try to open DK com port ( PPK shield should be disconnected from DK) using Power Profiler application.

    2. Pop up window with the notification will appear on the PP screen:

         Would you like to program development kit with the required firmware ?

    3. Connect PPK shield to the DK and confirm YES.

    4. After that procedure PPK shield will be reanimated (Led will be on) and ready

for use. Just press START in power profiler application.

Note : Try not forget to disconnect PPK from the DK during DK's firmware update via

debugger.