How to add scan response data to beacon example

[Snorlax]

Hi, I'm using the 15.3 SDK ble_app_beacon example and want to add scan response data.

I've found some examples in the devzone, but not matching the example code in this SDK version (not using the same APIs).

Could you show the easiest way to add scan data?

Example code:

static void advertising_init(void)
{

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;

#if defined(USE_UICR_FOR_MAJ_MIN_VALUES)
// If USE_UICR_FOR_MAJ_MIN_VALUES is defined, the major and minor values will be read from the
// UICR instead of using the default values. The major and minor values obtained from the UICR
// are encoded into advertising data in big endian order (MSB First).
// To set the UICR used by this example to a desired value, write to the address 0x10001080
// using the nrfjprog tool. The command to be used is as follows.
// nrfjprog --snr <Segger-chip-Serial-Number> --memwr 0x10001080 --val <your major/minor value>
// For example, for a major value and minor value of 0xabcd and 0x0102 respectively, the
// the following command should be used.
// nrfjprog --snr <Segger-chip-Serial-Number> --memwr 0x10001080 --val 0xabcd0102
uint16_t major_value = ((*(uint32_t *)UICR_ADDRESS) & 0xFFFF0000) >> 16;
uint16_t minor_value = ((*(uint32_t *)UICR_ADDRESS) & 0x0000FFFF);

uint8_t index = MAJ_VAL_OFFSET_IN_BEACON_INFO;

m_beacon_info[index++] = MSB_16(major_value);
m_beacon_info[index++] = LSB_16(major_value);

m_beacon_info[index++] = MSB_16(minor_value);
m_beacon_info[index++] = LSB_16(minor_value);
#endif

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(&advdata, 0, sizeof(advdata));

advdata.name_type = BLE_ADVDATA_NO_NAME;
advdata.flags = flags;
advdata.p_manuf_specific_data = &manuf_specific_data;

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

// m_adv_params.properties.type = BLE_GAP_ADV_TYPE_NONCONNECTABLE_NONSCANNABLE_UNDIRECTED;
m_adv_params.properties.type = BLE_GAP_ADV_TYPE_NONCONNECTABLE_SCANNABLE_UNDIRECTED;
m_adv_params.p_peer_addr = NULL; // Undirected advertisement.
m_adv_params.filter_policy = BLE_GAP_ADV_FP_ANY;
m_adv_params.interval = NON_CONNECTABLE_ADV_INTERVAL;
m_adv_params.duration = 0; // Never time out.

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

err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &m_adv_params);
APP_ERROR_CHECK(err_code);
}

[tesc]

Hi,

For an example of scannable advertising you can have a look at the BLE Blinky Application. Both advertising data and scan response data is encoded using ble_advdata_encode(), in advertising_init(), in main.c of that example. As you can see, the Blinky example uses advertising data for name, appearance and flags, and it uses scan response for list of UUIDs.

Regards,
Terje