nrf52 Advertising Extensions S132 6.1.1

[bernerj]

Hi,

I'm currently trying to use advertising extensions with my nrf52832. However once I use the 

BLE_GAP_ADV_TYPE_EXTENDED_CONNECTABLE_NONSCANNABLE_UNDIRECTED

type for the ble_gap_adv_params_t properties I get an error at sd_ble_gap_adv_set_configure.

Is there any example available that shows how to do this with softdevice?

Thanks.

[Einar Thorsrud]

Hi,

There are not many SDK examples of extended advertising, but you can refer to the Running Speed and Cadence Application (this uses the advertising module though, and not SD APIs directly).

There are quite a few limitations in what combinations are allowed when using extended advertising, and any illegal combination will give you an NRF_INVALID_PARAMS return value. I assume that is what you get? You can refer to BLUETOOTH CORE SPECIFICATION Version 5.1 | Vol 6, Part B, Section 2.3 for the details. Which exact configuration do you use?

[bernerj]

Yeah I already took a look at that but it uses a different configuration approach. I would like to use the ble_gap_adv_params_t so I can keep my already made project structure. I do indeed get the NRF_INVALID_PARAMS error.

ble_gap_adv_params_t adv_para =
  {
    .properties    = { .type = _type, .anonymous  = 0 },
    .p_peer_addr   = NULL                     , // Undirected advertisement
    .interval      = interval                 , // advertising interval (in units of 0.625 ms)
    .duration      = (uint16_t) (timeout*100) , // in 10-ms unit

    .max_adv_evts  = 0                        , // TODO can be used for fast/slow mode
    .channel_mask  = { 0, 0, 0, 0, 0 }        , // 40 channel, set 1 to disable
    .filter_policy = BLE_GAP_ADV_FP_ANY       ,

    .primary_phy   = BLE_GAP_PHY_AUTO         , // 1 Mbps will be used
    .secondary_phy = BLE_GAP_PHY_AUTO         , // 1 Mbps will be used
      // , .set_id, .scan_req_notification
  };

  // gap_adv long-live is required by SD v6
  static ble_gap_adv_data_t gap_adv =
  {
      .adv_data      = { .p_data = _data, .len = _count },
      .scan_rsp_data = { .p_data = getData(), .len = sr.count() }
  };
  ret = sd_ble_gap_adv_set_configure(&_hdl, &gap_adv, &adv_para);

that's the way I setup my advertisements. _type is BLE_GAP_ADV_TYPE_EXTENDED_CONNECTABLE_NONSCANNABLE_UNDIRECTED.

[Einar Thorsrud]

Hi,

I do not see any problem with these parameters. Could it be something with the advertising data? (that is also checked by the SoftDevice). Can you upload a completed project so that I can test on my side with the exact same settings and advertising data?