Why do have two advertising_init() function co-exist?

[MainOFF]

I am working with SDK 14.0 . I see two "type" of advertising_init() function :

1-

static void advertising_init(void)
{
    uint32_t               err_code;
    ble_advertising_init_t init;

    memset(&init, 0, sizeof(init));

    init.advdata.name_type          = BLE_ADVDATA_FULL_NAME;
    init.advdata.include_appearance = false;
    init.advdata.flags              = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;

    init.srdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
    init.srdata.uuids_complete.p_uuids  = m_adv_uuids;

    init.config.ble_adv_fast_enabled  = true;
    init.config.ble_adv_fast_interval = APP_ADV_INTERVAL;
    init.config.ble_adv_fast_timeout  = APP_ADV_TIMEOUT_IN_SECONDS;

    init.evt_handler = on_adv_evt;

    err_code = ble_advertising_init(&m_advertising, &init);
    APP_ERROR_CHECK(err_code);

    ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG);
}

this function use ble_advertising_init_t variable.

2 static void advertising_init(void) { ret_code_t err_code; ble_advdata_t advdata; ble_advdata_t srdata;

ble_uuid_t adv_uuids[] = {{LBS_UUID_SERVICE, m_lbs.uuid_type}};

// Build and set advertising data
memset(&advdata, 0, sizeof(advdata));

advdata.name_type          = BLE_ADVDATA_FULL_NAME;
advdata.include_appearance = true;
advdata.flags              = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;


memset(&srdata, 0, sizeof(srdata));
srdata.uuids_complete.uuid_cnt = sizeof(adv_uuids) / sizeof(adv_uuids[0]);
srdata.uuids_complete.p_uuids  = adv_uuids;

err_code = ble_advdata_set(&advdata, &srdata);
APP_ERROR_CHECK(err_code);

}

this function use two ble_advdata_t variables. who can tell me what different between them? and how can I convert between them?

[Jørn]

The first code you posted uses the advertising module that comes with the SDK, the advertise module needs an initialize structure called ble_advertising_init_t. You can read more about it here. It adds some flexibility. The second code does not use the advertising module and goes for a more direct approach, defining the advertise and scan response more directly.

[MainOFF]

thanks for your information! I am going do read advertising module manual!!!

[MainOFF]

but can I only program as 2nd code. I don't want to use advertising module. I can't use ble_advertising_def(m advertising) macro. error 40 : expect an identifier .