Advertising with no timeout

[Maciej Baster]

Hi,

I'm developing an app which requires continuous advertising. I use following ble_gap_adv_params_t:

   ble_gap_adv_params_t adv_params;
    memset(&adv_params, 0, sizeof(adv_params));
    
    adv_params.type = BLE_GAP_ADV_TYPE_ADV_IND;
    adv_params.p_peer_addr = NULL;
    adv_params.fp = BLE_GAP_ADV_FP_ANY;
    adv_params.interval = 320;
    adv_params.timeout = 0;

Documentation says that if timeout equals 0 then advertising doesn't stop. However, when I call sd_ble_gap_adv_start(&adv_params) the function returns error_code = 0x07 (which indicates invalid parameters). Where is the bug? Or is there another way to accomplish continuous advertising other than restarting it in the timeout handler?

[Carles]

Hi,

Have you set the advertisement data first with:

sd_ble_gap_adv_data_set()

?

You will need to do that first so that the stack knows what adv flags you intend to use, and check whether those are compatible with unlimited advertising.

Carles