Failed to start the PPK.

RE: Failed to start the PPK.

Mttrinh — Wed, 05 Dec 2018 15:12:11 GMT

Does this happen on the Power Profiler software on windows? Seems to run fine over here.

RE: Failed to start the PPK.

Bruno Randolf — Mon, 03 Dec 2018 12:29:06 GMT

same here

RE: Failed to start the PPK.

madblue — Fri, 30 Nov 2018 09:29:03 GMT

It seems to be a bug with the software, i am using it on ubuntu18.04 and this occurs frequently. it may connect sometimes and give the readings properly but in most cases it gives the error "Failed to read PPK metadata".

so in every session, i am forced to erase the ppk and start again (even this method doesn't guarantee above 70% success ).i am using v2.6.1

RE: Failed to start the PPK.

AntonKa — Sat, 29 Sep 2018 09:03:11 GMT

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.

RE: Failed to start the PPK.

wlgrd — Thu, 16 Aug 2018 12:18:50 GMT

Since you have used it before, but it's not working now, it seems to be a power issue. Please check the points below, and we can take it from there.

* If the PPK doesn't light it's LED(s), then it might be due to erased firmware, or no power supplied. Check to see that the Power Select switch is set in DK-position.

* Failed to open RTT channel means that there are no debug connection. If the PPK doesn't power up, then that makes sense. Try setting the DUT Select to External, and verify you have ~3V on the output pins. If so, the PPK should be powered, and the issue is related to the Segger J-Link connection.

* Next to check is the COM switch (the small one in the middle of the board), and verify it's in DK position.

Edit: Also, try and plug a USB directly in to the PPK, and see if that changes anything with regards to power. If that works, you should also try an external debugger (can be a DK with a 10pin jtag cable)

RE: Failed to start the PPK.

TTN — Thu, 16 Aug 2018 00:54:06 GMT

Hi Mttrinh,

We follow the guide https://www.youtube.com/watch?v=JBKeHlOcO_g

The step before DK power on is same as the guide,

but we find that the led on the profile kit doesn't light up when DK power on.

RE: Failed to start the PPK.

TTN — Wed, 15 Aug 2018 13:42:27 GMT

Yes, we have tried different DK.
Still get the same error.

21:38:34.3040

Segger serial: 682331053

21:38:34.3040

Segger speed: 2000 kHz

21:38:34.3040

Segger version: J-Link OB-SAM3U128-V2-NordicSemi compiled Jul 4 2018 16:22:02

21:38:40.3050

Failed to open RTT channel

21:38:40.3070

PPK closed

21:38:45.3060

Failed to start the PPK.

RE: Failed to start the PPK.

Mttrinh — Wed, 08 Aug 2018 13:41:21 GMT

Have you tried with a different DK or PPK?

RE: Failed to start the PPK.

TTN — Fri, 27 Jul 2018 02:42:51 GMT

HI Mttrinh,

I'm Mike's colleague, the PPK is always on the top of the DK, the changes since last week maybe code flows and the Saadc functions we try to test.

RE: Failed to start the PPK.

Mttrinh — Wed, 25 Jul 2018 09:18:41 GMT

Hi,

What have changed since last week when it was working? Is the PPK on top of a DK?