Coded phy PC application Connection request Failed, reason 19

RE: Coded phy PC application Connection request Failed, reason 19

Hamed Rafi — Thu, 12 Dec 2019 15:03:01 GMT

Thank you very much. Very helpful response.

Kind regards,
Hamed

RE: Coded phy PC application Connection request Failed, reason 19

Jørgen Holmefjord — Thu, 12 Dec 2019 14:58:24 GMT

Hi,

I would recommend that you try to increase the event_length parameter as suggested. You probably have something along this line in your application. You should set the event_length parameter in this struct before calling sd_ble_cfg_set(). In this long-range demo sample, this parameter is set to 400.

You can find message sequence charts here:

Best regards,
Jørgen

RE: Coded phy PC application Connection request Failed, reason 19

Hamed Rafi — Thu, 12 Dec 2019 14:57:27 GMT

I figured out that during initialization, the following configuration needs to be set for the coded phy connection to work

ble_cfg.conn_cfg.conn_cfg_tag = conn_cfg_tag;
ble_cfg.conn_cfg.params.gap_conn_cfg.conn_count = 2;
ble_cfg.conn_cfg.params.gap_conn_cfg.event_length = BLE_GAP_EVENT_LENGTH_CODED_PHY_MIN;
sd_ble_cfg_set(m_adapter, BLE_CONN_CFG_GAP, &ble_cfg, ram_start);

After adding that, I could establish the connection.