printf is not printing anything over UART ,going in hard fault with SDK13

[Pranay]

Hi, I am working on SDK13 multiperipheral example trying to add nus in code, but it is not able to send anything to connected android , nrf52 is receiving only 1 byte if i try to send data from mobile. For testing i added printf statement but then it is going in hard fault without printing

[Jørgen Holmefjord]

Have you tried debugging your application using this method, to check which function call is causing the hardfault, and what error code is reported?