This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

Change Advertising mask

Hello,

I  want to change the channel mask of the advertising channels like this

m_advertising.adv_params.channel_mask[4] = 0xC0;  // only Channel 37

and sniff it.

I can compile and flash the code but on sniffer the advertiser still send on the three advertising channels. Is there another place where I have to change the mask?

Software: nRF5_SDK_15.0.0 with + S140

Hardware: nRF52840-DK

Code of the advertising init.

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

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

    ble_advdata_manuf_data_t                  manuf_data; //Variable to hold manufacturer specific data
    memset(&manuf_data, 0, sizeof(manuf_data));
    uint8_t data[]                            = "Test"; //Our data to advertise
    manuf_data.company_identifier             =  0x0059; //Nordics company ID
    manuf_data.data.p_data                    = data;
    manuf_data.data.size                      = sizeof(data);
    init.advdata.p_manuf_specific_data = &manuf_data;

    init.advdata.name_type               = BLE_ADVDATA_SHORT_NAME;
    init.advdata.short_name_len          = 6;
    init.advdata.include_appearance      = true;
    init.advdata.flags                   = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
    init.advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
    init.advdata.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_DURATION;

    init.evt_handler = on_adv_evt;

    m_advertising.adv_params.channel_mask[4] = 0xC0;  //Channel 37
    NRF_LOG_INFO("duration: %d", m_advertising.adv_params.duration);

    

    err_code = ble_advertising_init(&m_advertising, &init);
    if(err_code != 0)
      NRF_LOG_INFO("Errorcode advertising_init: %d", err_code);
    APP_ERROR_CHECK(err_code);

    ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG);
}

The m_advertising is an BLE_ADVERTISING_DEF(m_advertising); instance.

Thanks

Parents Reply Children
No Data
Related