nRF5340 can't connect to nRF52840 with coded phy

RE: nRF5340 can't connect to nRF52840 with coded phy

Despair1337 — Tue, 04 May 2021 08:30:10 GMT

Hi Sigurd,

the conn_param in bt_scan_init_param is "struct bt_le_conn_param", not "struct bt_conn_le_create_param". Anyway, I tried this snippet, there was some errors which I tried to fix, but in the end, the connection was failing (but differently than originally).

RE: nRF5340 can't connect to nRF52840 with coded phy

Despair1337 — Tue, 04 May 2021 07:40:09 GMT

Hi Sigurd,

this fixed the issue,

Thank you for your time.

RE: nRF5340 can't connect to nRF52840 with coded phy

Sigurd — Tue, 04 May 2021 07:33:18 GMT

Hi,

Seems like the scanning module's connect_if_match feature is not working when connecting on Coded Phy.

Set connect_if_match=0, and replace the scan_filter_match() function with the one we use in e.g. central_hr_coded sample. bt_conn_le_create() will then be called with the correct settings. See this link: https://github.com/nrfconnect/sdk-nrf/blob/v1.5.1/samples/bluetooth/central_hr_coded/src/main.c#L122

EDIT: Alternatively, setting the conn_param in scan_init() might also fix this issue. Snippet:

    struct bt_conn_le_create_param conn_params;

	conn_params = BT_CONN_LE_CREATE_PARAM(
			BT_CONN_LE_OPT_CODED | BT_CONN_LE_OPT_NO_1M,
			BT_GAP_SCAN_FAST_INTERVAL,
			BT_GAP_SCAN_FAST_INTERVAL);


	struct bt_scan_init_param scan_init = {
		.connect_if_match = 1,
		.scan_param = &scan_param,
		.conn_param = &conn_params
	};

RE: nRF5340 can't connect to nRF52840 with coded phy

Despair1337 — Tue, 04 May 2021 06:16:15 GMT

Hi, is there anything required from me to speed up the process?

Thanks