change advertisement index in advertise packet

RE: change advertisement index in advertise packet

FormerMember — Fri, 07 Oct 2016 13:46:46 GMT

If the problem with the encoding order is solved. This thread should be marked as "solved", and the new question should be placed in a new question, due to readability for others with the same questions.

From what I can see, service data is not in the advertising data because service_data is not added to advdata. If that is not the reason, please create a new question instead of continuing in this thread.

RE: change advertisement index in advertise packet

FormerMember — Thu, 06 Oct 2016 06:38:22 GMT

All you need to do to change the order of the advertised data is to change the order that the data is being encoded in adv_data_encode(..)

RE: change advertisement index in advertise packet

rushin — Thu, 06 Oct 2016 05:30:04 GMT

waiting for your response

RE: change advertisement index in advertise packet

rushin — Wed, 05 Oct 2016 08:14:46 GMT

ok thanks.

static void advertising_init(void)
{
    uint32_t      err_code;
    ble_advdata_t advdata;
    ble_advdata_t scanrsp;
	  ble_advdata_service_data_t service_data;
    uint8_t data1[3] ={0x01,0x03,0x04};
    // Build advertising data struct to pass into @ref ble_advertising_init.
    memset(&advdata, 0, sizeof(advdata));
    advdata.name_type          = BLE_ADVDATA_SHORT_NAME;
	  advdata.short_name_len = 1;
    advdata.include_appearance = false;

    advdata.flags              = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
		service_data.service_uuid =0x0018;
    service_data.data.p_data = data1;
		service_data.data.size = sizeof(data1);
    
    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;

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

after writing this function, i am not getting service data in advertisement packet. can you help me?? what is my problem??

RE: change advertisement index in advertise packet

RK — Wed, 05 Oct 2016 06:15:49 GMT

just look at the code. ble_advertising_init() calls ble_advdata_set() which calls adv_data_encode(). Change adv_data_encode() or write your own version of the whole thing.

I have no idea by the way why you care about the ordering of the fields in the advertising data, it doesn't matter at all.

RE: change advertisement index in advertise packet

rushin — Tue, 04 Oct 2016 13:02:13 GMT

i can't understand how to use adv_data_encode(....)

like in this function

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

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

    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;

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

how to use adv_data_encode(..)??

RE: change advertisement index in advertise packet

FormerMember — Tue, 04 Oct 2016 10:18:01 GMT

My answer below should answer the question.

RE: change advertisement index in advertise packet

FormerMember — Tue, 04 Oct 2016 07:01:21 GMT

The data supplied to sd_ble_gap_adv_data_set(..) is the raw data to be placed in the advertising packet. In the SDK, the advertising module, using ble_advdata_set(..) --> adv_data_encode(..), encodes the advertising data from the type ble_advdata_t to raw advertising data. Changing the order of the encoding in adv_data_encode, will change the order of the advertised data.

RE: change advertisement index in advertise packet

RK — Tue, 04 Oct 2016 06:38:40 GMT

what are you asking? What's "bame" for a start, and what has your question got to do with the parameters in the structure. Please ask a proper question.