Working / sample programs crashing on Custom Board?

[Faizan]

Hi, I have made my custom board using nrf51422 sample chips (Which came nrf 51422DK ), but my working / sample program which works on DK gets crashed on custom Board.

Blinking works fine, but uart and other soft device programs crashes.

Marking on my chip is: NRF51422 QFAC A1 1503AD

[Einar Thorsrud]

It seems you are using the same chip variant as the DK, which also has a QFAC. As long as you initialize the SoftDevice with the correct settings for 32 kHz clock, I do not see what should be different. Which version of the SDK and SoftDevice do you use? Can you disable optimization and define DEBUG and use a debugger to figure out exactly where the error occurs?