connection interval set

RE: connection interval set

Ridhi — Tue, 12 Oct 2021 09:10:30 GMT

all i want is to set a connection interval as 100ms at peripheral end..kindly help how can i do this try understanding i want is that in ble_app_template code once i want to set CI as 100ms build the code then check power consumption, then in second time i change CI to 1000ms then again build code and meausre power and so on

RE: connection interval set

Kenneth — Tue, 12 Oct 2021 09:06:22 GMT

As a peripheral device you can only request an update of connection parameters, it is the central device that need to accept or reject the request. For more information see here:
https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s140.api.v7.3.0/group___b_l_e___g_a_p___c_p_u___m_s_c.html

RE: connection interval set

Ridhi — Tue, 12 Oct 2021 06:14:52 GMT

BLE Power Optimization Parameters | BuildStorm

I WANT TO DO THIS PLS PLS CHECK CONNECTION PARAMETERS CONNECTION INTERVAL THING. HOW CAN I SET MY CONNECTION INTERVAL EITHER 100ms/100ms/5000ms

RE: connection interval set

Kenneth — Thu, 07 Oct 2021 13:20:59 GMT

No, see "You can find there is a ble_conn_params_init() in your application. This module will handle the connection parameters, for instance you can set a MIN_CONN_INTERVAL and MAX_CONN_INTERVAL, and this module will then try to update the connection to use these parameters shortly after connection is established."

RE: connection interval set

Ridhi — Thu, 07 Oct 2021 12:31:44 GMT

#define MIN_CONN_INTERVAL MSEC_TO_UNITS(100 UNIT_1_25_MS)

#define MAX_CONN_INTERVAL MSEC_TO_UNITS(100, UNIT_1_25_MS)

is it meaning that the connection interval is now set 100 ms??

RE: connection interval set

Kenneth — Thu, 07 Oct 2021 11:31:58 GMT

Set both to 100ms or both to 1000ms.

Kenneth

RE: connection interval set

Ridhi — Thu, 07 Oct 2021 10:13:51 GMT

#define MIN_CONN_INTERVAL MSEC_TO_UNITS(7.5, UNIT_1_25_MS) /**< Minimum acceptable connection interval (0.5 seconds). */
#define MAX_CONN_INTERVAL MSEC_TO_UNITS(100, UNIT_1_25_MS) /**< Maximum acceptable connection interval (1 second). */

how to make it as 100ms or 1000ms Connection interval.

CONN_SUP_TIMEOUT i set to 4secs what is its effect i am not getting

RE: connection interval set

Kenneth — Thu, 07 Oct 2021 09:12:26 GMT

You can find there is a ble_conn_params_init() in your application. This module will handle the connection parameters, for instance you can set a MIN_CONN_INTERVAL and MAX_CONN_INTERVAL, and this module will then try to update the connection to use these parameters shortly after connection is established.

The CONN_SUP_TIMEOUT is typically set to a relative large value (e.g. several seconds), since it defines the time that should be considered link is lost when there have been no communication. To reduce current consumption you should make sure to set SLAVE_LATENCY to for instance 5-10, this will allow the BLE peripheral to skip connection intervals if there is no out-going data pending.

Kenneth