NRF52dk mesurement problem

[Nero]

Hello

I m trying to measure the current in my development card nrf52DK using the power profiler kits, so i prepared the board by (cut the PCB track shorting solder bridge SB 9 and SB12 )
but after I find that the code flashed in the card does not work ,and i don t know where s the problem.

thanks in advance.

[haakonsh]

Hey Ahmed,

You might have acidentally flashed your application to the PPK instead of the DK. The PPK uses an nRF52832 that communicates with the PC application through the DK's on-board debugger (SEGGERs Real Time Terminal). 

I need you to launch the PPK application in nRF Connect and tell my what error code you get. 

Cheers,

Håkon.

[Nero]

hello , there is someone who could help me

[picben]

Hi, when you remove the jumper on P22, do you replace it with an ampere-meter or a 10ohm resistor on R6 ? Because looking at the schematic for the nRF52 DK, if you cut SB9 and don't replace it with anything, I don't think your nRF52 is powered at all (VDD_nRF is just disconnected).

[Nero]

hello ,thanks

I don t replace it , because that s isn ' t suggested in the  nordic description

http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.tools%2Fdita%2Ftools%2Fpower_profiler_kit%2FPPK_user_guide_PPK_on_nRF5xDK.html

its necessary to add a 10 ohm resistor ?

[picben]

Oh sorry, I read a bit fast and didn't see you were using a PPK. I'm not sure how exactly the device works so I'll let someone with more experience answer.