iBeacon format Major/Minor or UUID can not be dynamically updated?

[leo_tester]

=======

SDK: 15.3

Product all base: ble_app_template

Problem: cannot update iBeacon content dynamically during system run-time.

=======

we try to use ADV with ibeacon after beacon start-up,

and then dynamically change ibeacon's Major/Minor version to iphone/android by using

    //stop advertising
    err_code = sd_ble_gap_adv_stop(m_advertising.adv_handle);
    APP_ERROR_CHECK(err_code);

    

   // enable configure

    err_code = sd_ble_gap_adv_set_configure(&m_advertising.adv_handle, &m_adv_data, &m_advertising.adv_params);
    APP_ERROR_CHECK(err_code);

    //start advertising

    err_code = sd_ble_gap_adv_start(m_advertising.adv_handle, APP_BLE_CONN_CFG_TAG);
    APP_ERROR_CHECK(err_code);

where changed adv is like

static ble_gap_adv_data_t m_adv_data = // this one is fail at  sd_ble_gap_adv_set_configure  with error 4
{
    .adv_data =
    {
        .p_data = m_beacon_info, // this is a new change run-time.
        .len    = APP_BEACON_INFO_LENGTH;  // 21B)
    .scan_rsp_data =
    {
        .p_data = NULL,
        .len    = 0

    }
};

but it seems to fail at run-time dynamically change ibeacon format.
Can u help confirm by ble_app_ibeacon example.

But it this adv pattern change to 

static ble_gap_adv_data_t m_adv_data  =  // this one can be workable and ADV changeable.
{
    .adv_data =
    {
        .p_data = enc_adv_data_buffer,  // customer infomation
        .len    = BLE_GAP_ADV_SET_DATA_SIZE_MAX ;  // 31B which is BLE default ADV pattern 
    },
    .scan_rsp_data =
    {
        .p_data = NULL,
        .len    = 0

    }
};

to sum up, it seems we can not change ibeacon format content dynamically but we can 
change ADV content if we use default BLE beacon (31B format); is that true?

Leo

[leo_tester]

Hi, Ameer,

It still doesn't work and I list my mechanism and code below, plz help clarify where the problem is...

1. device advertising init with iBeacon format.

2. during system run-time, I try to update iBeacon's major/minor field by a function updateAdvertisingData()

    but ADV update at

    err_code = sd_ble_gap_adv_set_configure(&m_advertising.adv_handle, &m_adv_data, &m_advertising.adv_params);

    where error code = 0xC (wrong size) 

3. i am mixed about using funtion

err_code = sd_ble_gap_adv_set_configure(&m_advertising.adv_handle, &m_adv_data, &m_advertising.adv_params);

and 

err_code = ble_advdata_encode(&advdata, m_adv_data.adv_data.p_data, &m_adv_data.adv_data.len);

which API is fit to use to change ADV content in SDK 15.  It seems it has many ways to update ADV pattern

ADV init: 

==

void advertising_init(void)
{
ret_code_t err_code;
ble_advdata_manuf_data_t manuf_specific_data;

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

init.advdata.name_type = BLE_ADVDATA_NO_NAME;
init.advdata.include_appearance = true;
init.advdata.flags = BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED; 
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_whitelist_enabled = true; //BLE_ADV_WHITELIST_ENABLED;
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;

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

m_advertising.adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;
m_advertising.adv_params.p_peer_addr = NULL; // Undirected advertisement.
m_advertising.adv_params.filter_policy = BLE_GAP_ADV_FP_ANY;
m_advertising.adv_params.interval = NON_CONNECTABLE_ADV_INTERVAL;
m_advertising.adv_params.duration = 0; // Never time out.
m_advertising.adv_handle = m_adv_handle;

manuf_specific_data.company_identifier = APP_COMPANY_IDENTIFIER;
manuf_specific_data.data.p_data = (uint8_t *) m_beacon_info;
manuf_specific_data.data.size = APP_BEACON_INFO_LENGTH;

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

init.advdata.name_type = BLE_ADVDATA_NO_NAME;
init.advdata.flags = BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED;
init.advdata.p_manuf_specific_data = &manuf_specific_data;
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);
APP_ERROR_CHECK(err_code);

}

updateAdvertisingData ():

==

static uint32_t uiBuffIndex = 0;
uint32_t err_code;
ble_advdata_t advdata;
uint8_t flags = BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED;
ble_advdata_manuf_data_t manuf_specific_data;

manuf_specific_data.company_identifier = APP_COMPANY_IDENTIFIER;

//stop advertising
err_code = sd_ble_gap_adv_stop(m_advertising.adv_handle);
APP_ERROR_CHECK(err_code);

#if 1   // run-time update beacon here.
m_updated_beacon_info[APP_BEACON_INFO_LENGTH-1 -4] = (uint8_t)Dev_Info.DevBleMac[2];
m_updated_beacon_info[APP_BEACON_INFO_LENGTH-1 -3] = (uint8_t)Dev_Info.DevBleMac[1];
m_updated_beacon_info[APP_BEACON_INFO_LENGTH-1 -2] = (uint8_t)Dev_Info.DevBleMac[0];
m_updated_beacon_info[APP_BEACON_INFO_LENGTH-1 -1] = ((Dev_Info.VerMajor[0]-0x30<<4)|Dev_Info.VerMinor[1]-0x30);
#endif

manuf_specific_data.data.p_data = (uint8_t *) m_updated_beacon_info;
manuf_specific_data.data.size = APP_BEACON_INFO_LENGTH;   // ibeacon size  = 21B

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

//
m_advertising.adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;
m_advertising.adv_params.p_peer_addr = NULL; // Undirected advertisement.
m_advertising.adv_params.filter_policy = BLE_GAP_ADV_FP_ANY;
m_advertising.adv_params.interval = NON_CONNECTABLE_ADV_INTERVAL;
m_advertising.adv_params.duration = 0; // Never time out.
m_advertising.adv_handle = m_adv_handle;
// 

err_code = sd_ble_gap_adv_set_configure(&m_advertising.adv_handle, &m_adv_data, &m_advertising.adv_params);
APP_ERROR_CHECK(err_code);  // fail at err_code = 0xC

err_code = sd_ble_gap_adv_set_configure(&m_advertising.adv_handle, &m_adv_data, &m_advertising.adv_params);
APP_ERROR_CHECK(err_code);

}

where

/**@brief Struct that contains pointers to the encoded advertising data. */
static ble_gap_adv_data_t m_adv_data1=
{
.adv_data =
{
.p_data = m_updated_beacon_info, 
.len = APP_BEACON_INFO_LENGTH
},
.scan_rsp_data =
{
.p_data = NULL,
.len = 0

}
};

===

[Ameer Usman]

From an initial look I would suggest you start your code from the 'ble_app_beacon' example. Do have a look at the difference of your 'advertising_init()' function and theirs. Doing the advertising_init with the 'ble_app_beacon' example method should allow it you to edit the data.

P.S. Try to add your code using the Insert ->Insert Code, gives a bit more readability.