in tutoriall service beginer

[navid]

hi in tutoriall service beginer there is

 static void advertising_init(void)
{
    uint32_t      err_code;
    ble_advdata_t advdata;

    // Build advertising data struct to pass into ble_advertising_init().
    memset(&advdata, 0, sizeof(advdata));

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

    ble_adv_modes_config_t options = {0};
    options.ble_adv_fast_enabled  = BLE_ADV_FAST_ENABLED;
    options.ble_adv_fast_interval = APP_ADV_INTERVAL;
    options.ble_adv_fast_timeout  = APP_ADV_TIMEOUT_IN_SECONDS;

    // OUR_JOB: Create a scan response packet and include the list of UUIDs 
    ble_uuid_t m_adv_uuids[] = {BLE_UUID_OUR_SERVICE, BLE_UUID_TYPE_VENDOR_BEGIN}; 

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

    err_code = ble_advertising_init(&advdata, &srdata, &options, on_adv_evt, NULL);
    APP_ERROR_CHECK(err_code);
}

and in sdk v6 for nrf51422 v2 there is no ble_advertising_init() but there is ble_advdata_set() and i use it like below

static void advertising_init(void)
{
    uint32_t      err_code;
    ble_advdata_t advdata;
    uint8_t       flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
		ble_advdata_t srdata;

    ble_uuid_t adv_uuids[] =
    {
        {BLE_UUID_HEART_RATE_SERVICE,         BLE_UUID_TYPE_BLE},
        {BLE_UUID_BATTERY_SERVICE,            BLE_UUID_TYPE_BLE},
        {BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE}
    };
		
		ble_uuid_t m_adv_uuids[] = {BLE_UUID_OUR_SERVICE, BLE_UUID_TYPE_VENDOR_BEGIN};
		
		memset(&srdata, 0, sizeof(srdata));
		
		srdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
		srdata.uuids_complete.p_uuids = m_adv_uuids;
		
    // Build and set advertising data.
    memset(&advdata, 0, sizeof(advdata));

    advdata.name_type               = BLE_ADVDATA_FULL_NAME;
    advdata.include_appearance      = true;
    advdata.flags.size              = sizeof(flags);
    advdata.flags.p_data            = &flags;
    advdata.uuids_complete.uuid_cnt = sizeof(adv_uuids) / sizeof(adv_uuids[0]);
    advdata.uuids_complete.p_uuids  = adv_uuids;

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

    // Initialize advertising parameters (used when starting advertising).
    memset(&m_adv_params, 0, sizeof(m_adv_params));

    m_adv_params.type        = BLE_GAP_ADV_TYPE_ADV_IND;
    m_adv_params.p_peer_addr = NULL;                           // Undirected advertisement.
    m_adv_params.fp          = BLE_GAP_ADV_FP_ANY;
    m_adv_params.interval    = APP_ADV_INTERVAL;
    m_adv_params.timeout     = APP_ADV_TIMEOUT_IN_SECONDS;
}

but it return error NRF_ERROR_INVALID_PARAM 0x00000007 when i comment this line out

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

the error will gone then the problem is this line

why?

[RichieJH]

I think the latter SDKs do more lifting of formatting the advdata and srdata so you can feed them less and the additional functions introduced will fill in the blanks. Certainly it means you can't pick up code for a new SDK and expect it to run on the old SDK. Perhaps follow the new code to see what other processing is occurring in the new functions and that you need to do manually for the old SDK.