No callbacks from softdevice to sys_evt_dispatch

[Darrew]

My app (S130 SDK12.3; BLE with multiprotocol support where the radio session is opened before advertising) registers function sys_evt_dispatch() as per

static void softdevice_init(void)
{
    uint32_t err_code;

    static nrf_clock_lf_cfg_t clock_lf_cfg = NRF_CLOCK_LFCLKSRC;
    static uint32_t ble_evt_buffer[CEIL_DIV(BLE_STACK_EVT_MSG_BUF_SIZE, sizeof(uint32_t))];

    err_code = softdevice_handler_init((&clock_lf_cfg), ble_evt_buffer, sizeof(ble_evt_buffer), NULL);
    APP_ERROR_CHECK(err_code);                                                                 \

    err_code = softdevice_enable(&m_ble_enable_params);
    APP_ERROR_CHECK(err_code);

    err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch);
    APP_ERROR_CHECK(err_code);

    err_code = softdevice_sys_evt_handler_set(sys_evt_dispatch);
    APP_ERROR_CHECK(err_code);
}

but sys_evt_dispatch()

void sys_evt_dispatch(uint32_t sys_evt)
{
    nrf_evt_signal_handler(sys_evt);
    fs_sys_event_handler(sys_evt);
    ble_advertising_on_sys_evt(sys_evt);
}

is never called. What can be the root cause?

[Hung Bui]

Hi Jose, 

 

I don't see a problem in your code. Which events did you expect ? Have you started the timeslot ? 

Could you try to follow our tutorial here and let us know if you don't see the event ?

[Darrew]

The timeslot is started according to your tutorial. I would have expected to see an fs event going to fs_sys_event_handler (fstorage.c) since advertising is blocked (and pending) by flash_access_in_progress() (ble_advertising.c:ble_advertising_start()) being true for any reason I do not know. But, no events are coming since the SoC is reset after getting out from sd_app_evt_wait() for any reason.

Please check https://devzone.nordicsemi.com/f/nordic-q-a/36730/flash_access_in_progress-preventing-ble-advertising-start, this is a flollow-up of the same problem (I will update and close this thread).