Custom nRF52 board partially start

[Fabien Comte]

Hello, I just produced my custom board with nRF52 but i have a problem.

I can program it (SWD over nRF52 DK), debug it (segger debudder software) but in bootloader it enter in function ble_stack_init and never goes out.

Does someone have an idea what to check please ?

If external oscillator problem is a way to investigate, are they already on or nRF52 use an internal oscillator ?

[Fabien Comte]

It was not to test accuracy but just if it works (a kind of prototype production selftest). I modified my 10 pF to 12 pF as recommanded by Nordic and it works fine. Thank you for your help.