Power Profiler Board got broken

RE: Power Profiler Board got broken

Felix — Thu, 14 Nov 2019 15:57:26 GMT

two years later this is still very useful. Ubuntu 18 here, same problem (repeatedly) The message by the Power Profiler is ambiguous: "Device must be programmed, do you want to proceed?" I'm looking at two goddamn devices, plugged into each other - which one are you going to re-program. And why do I need reprogramming? I program the DK2 through Segger and power cycle, and the PPK should not need any reprogramming.

But thank you Håkon for providing a solution.

RE: Power Profiler Board got broken

kmalmiv16 — Fri, 09 Feb 2018 12:42:12 GMT

Hi Håkan again,

now I succeeded to flash it, the COM switch have to be in DK position.

Thanks for your quick and useful reply!

Rgds,

-Kari-

RE: Power Profiler Board got broken

haakonsh — Fri, 09 Feb 2018 12:39:16 GMT

Make sure the COM switch is set to 'DK'
Power select is set to 'DK'
DUT select is set to 'External'
P22 on the DK is open.

RE: Power Profiler Board got broken

kmalmiv16 — Fri, 09 Feb 2018 12:07:44 GMT

Hi Håkan,

thanks for your clear and precise reply.

I did as you presented, but flashing was failing: 'failed, retrying...'

Rgds,

-Kari-

RE: Power Profiler Board got broken

haakonsh — Fri, 09 Feb 2018 10:28:59 GMT

Hey Kari,

I believe the PPKs nRF52 have been flashed with the FW intended for the DKs nRF52. We've all done this and there's an easy fix:

There's a python script in the PPK folder called 'flash_ppk.py'. Run it when the PPK is attached to the DK and it will flash the PPK's nRF52 with the correct PPK FW.

The reason why the PPKs nRF52 gets flashed is that the DKs on-board debugger chip is connected to it rather than the DKs. This is because the PPK data samples are routed through it. Complete the following steps in order to flash your DKs nRF52 while the PPK is attatched:

Short P22 on the DK
Set the Power select switch to 'External' on the PPK
Set the COM switch to 'EXT' on the PPK.

Reverse procedure after flashing.

We're building a new application for the PPK. It will be a plugin for the nRF Connect framework, and the user experience should be greatly improved over the old python based application. Release is scheduled for the end of the month, so keep your eyes open for our public announcements.

Cheers,

Håkon.