power profiler installation clarification

[Nivetha]

Hi,

I have some basic doubts in installing the power profile on nrf52Dk(nrf52840). I'm trying to use it on my central device which has its application FW running. I have set all the switches of power profiler to DK and mounted it on nrf52Dk. I don't understand how to burn the hex file using NRFGO studio. If I identify the right Segger link and erase it, doesn't it erase the FW on my nrf52Dk? How to burn the hex file for the power profiler kit? What am I missing here? Please help me.

Thanks, Nivetha

[Sigurd]

Hi,

When you plug the PPK on your nRF52-DK, the PPK will be connected to the P20 debug-out port on the DK. The Segger on-board programmer/debugger on the DK detects that the PPK is connected, and will therfore instead program and interface with the nRF52 chip that is on the PPK.

[Sigurd]

PS: You can also use the P20 and the P19 connector on the DK to program other custom boards.

[Nivetha]

I actually got it running without me burning hex file into the ppk. Is it preloaded already? When I ran the python application, it prompted that there is an old version of FW running on PPK. Then I hit yes for flash new version and its working perfectly fine. But still, I don't understand how to burn the hex file to the PPK connected to the NRF52 Dk.

[Sigurd]

Yes, it comes preloaded with the 1.0.0 firmware. You normally don't need to flash the PPK firmware to the PPK, unless you accidently flash your application-hex to the PPK. If you do that, just run the flash_ppk.py and it will be flashed automatically.

[Nivetha]

Oh cool. Thanks a lot:)