to copy advertisement data

[nordicbeginner]

hello,

i have one nrf51 dk and it has some advertisement packet, i have another nrf51, i want this another nrf51 to copy first nrf51's data. can you tell me how to copy this advertisement data??

[RK]

read the advertisement data from the first one in the second one, set the data in the second one to that, publish it.

[nordicbeginner]

i think i should follow ble_app_hrs_c and from where i get scanned packet's data??

[Jørgen Holmefjord]

Hi,

When the central is scanning, you will get a BLE_GAP_EVT_ADV_REPORT event each time your device receives an advertisement package. Inside the BLE event handler, on_ble_evt(), you can parse the received package and initialize advertising using the parsed data. I added an example of how this can be done below, to show you the concept. Note that this is not a complete example, and have not been tested.

uint8_t target_address[6] = {0x11,0x22,0x33,0x44,0x55,0x66}

static void on_ble_evt(ble_evt_t * p_ble_evt)
{
    const ble_gap_evt_t   * p_gap_evt = &p_ble_evt->evt.gap_evt;

    switch (p_ble_evt->header.evt_id)
    {
        case BLE_GAP_EVT_ADV_REPORT:
        {
            ble_gap_evt_adv_report_t *p_adv_report = &p_gap_evt->params.adv_report;

            if(memcmp(target_address, p_adv_report->peer_addr.addr, sizeof(p_adv_report->peer_addr.addr)) == 0)
            {
                advertising_init(p_adv_report);
            }
        } break;
    }
}

static void advertising_init(ble_gap_evt_adv_report_t *p_adv_report)
{
    uint32_t               err_code;
    ble_advdata_t          advdata;
    ble_adv_modes_config_t options;

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

    // Parse received advertising packet and add to advertising data.
	// See central examples for examples of how data is parsed.

    memset(&options, 0, sizeof(options));
    // Set desired options

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

Best regards,

Jørgen