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.

[Susheel Nuguru]

Hmm, this is C++, it could be little strict with declarations. In softdevice_handler.h -> softdevice_handler_init is declared after its use in SOFTDEVICE_HANDLER_INIT. Maybe C++ compiler does not like this. can you move the definition of macro SOFTDEVICE_HANDLER_INIT in softdevice_handler.h after softdevice_handler_init is declared like below

first

uint32_t softdevice_handler_init(nrf_clock_lf_cfg_t *              p_clock_lf_cfg,
                                 void *                            p_ble_evt_buffer,
                                 uint16_t                          ble_evt_buffer_size,
                                 softdevice_evt_schedule_func_t    evt_schedule_func);

then

#define SOFTDEVICE_HANDLER_INIT(CLOCK_SOURCE,                                                      \
                                EVT_HANDLER)                                                       \
    do                                                                                             \
    {                                                                                              \
        static uint32_t BLE_EVT_BUFFER[CEIL_DIV(BLE_STACK_EVT_MSG_BUF_SIZE, sizeof(uint32_t))];    \
        uint32_t ERR_CODE;                                                                         \
        ERR_CODE = softdevice_handler_init((CLOCK_SOURCE),                                         \
                                           BLE_EVT_BUFFER,                                         \
                                           sizeof(BLE_EVT_BUFFER),                                 \
                                           EVT_HANDLER);                                           \
        APP_ERROR_CHECK(ERR_CODE);                                                                 \
    } while (0)

Now even a blind compiler should see the declaration :p

I am assuming that you have compiled and linked softdevice_handler.c