Example program hangs on sd_softdevice_enable

[andrey]

So I've seen all similar issues people had where their program stuck on sd_softdevice_enable() due to the fact that ran on custom boards which didn't have external oscillators.

In my case, however, I'm running the program on nRF51 DK (nRF51422_QFAC, PCA10028). Furthermore, even switching an internal clock with

NRF_CLOCK_LFCLKSRC_RC_250_PPM_TEMP_8000MS_CALIBRATION

makes no difference - execution still hangs on SVC_Handler.

[andrey]

This was happening because I flashed the device incorrectly (see this question), omitting SoftDevice entirely, which lead to a SVC_Handler being left out.