Hi, I am making my own bluetooth custom board with nRF52832. Till now, I made my custom pcb following the infocenter layout and chip antenna like below.

Now I want to debug a bluetooth adc example on this board and hope it can read analog voltage input and send it to my iphone via bluetooth. Of course the code is worked with my nRF52DK. I saw I can debug this custom pcb with nRF52DK and four pins, but there is no exact manual or guide in this nordic semiconductor.
This is my first time with bluetooth, pcb, embedded things, so hope you give me some specific guide for debugging my own pcb.
I am using Keil, and the adc example is from SDK 12.