undefined reference to `softdevice_handler_init(nrf_clock_lf_cfg_t*, void*, unsigned short, unsigned long (*)())'

[saiteja]

hi, i am using eclipse IDE to implement ble_hrs example. while i am calling ble_stack_init() from main function. in the ble_stack_init() function UNDER THE macro SOFTDEVICE_HANDLER-INIT I AM FACING ERROR undefined reference to `softdevice_handler_init(nrf_clock_lf_cfg_t*, void*, unsigned short, unsigned long (*)())'.. 1)i added all source files and included paths to source files. 2)only problem is while calling functions in source files it throwing error that undefined refference to the fun. please help me to solve this issue. thank you.

[Nguyen Hoan Hoang]

To make it compile with C++, you need to encapsulate all Nordic SDK include files within

    #ifdef __cplusplus
    extern "C" {
    #endif
    
    // all SDK includes
    #include "sdk_blal.h"
    
    #ifdef __cplusplus
    }
    #endif

We have asked Nordic to add this encapsulation in all C function prototypes of the SDK since the SDK6. This encapsulation is the standard practice since the invention of C++ to allow C++ to link with C functions. I hope they will do it properly some day.

[saiteja]

yes i am linking c++ with c functions. i will try this encapsulation. i want to work on only BLE module so y i need to include all the SDK files. (thank you for information)