Changing hvn_tx_queue_size with S132 V5.1

RE: Changing hvn_tx_queue_size with S132 V5.1

Petter Myhre — Thu, 30 Nov 2017 10:17:58 GMT

sd_ble_opt_set()? I'm not following.

RE: Changing hvn_tx_queue_size with S132 V5.1

Kyle Krueger — Wed, 29 Nov 2017 16:43:58 GMT

Ok, thanks for the help. We will stick with the procedure you recommended of modifying some of the config details afterwards. Would sd_ble_opt_set() be able to serve the same purpose in our case? If so, I will use that since it is clearer upon reading that no other config details will be modified when calling it other than the one specified.

RE: Changing hvn_tx_queue_size with S132 V5.1

Petter Myhre — Wed, 29 Nov 2017 09:52:44 GMT

It shouldn't override all settings. It should only override the GATTS connection configuration, since BLE_CONN_CFG_GATTS is used as configuration ID. It is up to you if you want to use nrf_sdh_ble_default_cfg_set() or not, you can set up everything manually, or you can call nrf_sdh_ble_default_cfg_set() and modify some of the configurations afterwards.

RE: Changing hvn_tx_queue_size with S132 V5.1

Kyle Krueger — Wed, 29 Nov 2017 09:43:14 GMT

Ok, looks easy enough.

However, the documentation sounds like this will override all settings from nrf_sdh_ble_default_cfg_set() which we have defined in our app_config.h.

"If a configuration is set more than once, the last one set is the one that takes effect on sd_ble_enable. Any part of the BLE stack that is NOT configured with sd_ble_cfg_set will have default configuration."

Does this mean we shouldn't bother to use nrf_sdh_ble_default_cfg_set() in the first place? I expected that it was the new paradigm to be using.

RE: Changing hvn_tx_queue_size with S132 V5.1

Petter Myhre — Tue, 28 Nov 2017 19:00:25 GMT

Just do something like this:

memset(&ble_cfg, 0, sizeof ble_cfg);
ble_cfg.conn_cfg.conn_cfg_tag                     = conn_cfg_tag;
ble_cfg.conn_cfg.params.gatts_conn_cfg.hvn_tx_queue_size = 4;
err_code = sd_ble_cfg_set(BLE_CONN_CFG_GATTS, &ble_cfg, ram_start);
APP_ERROR_CHECK(err_code);

After you have called nrf_sdh_ble_default_cfg_set().