the connection inteval cannot updated

RE: the connection inteval cannot updated

Mttrinh — Tue, 15 May 2018 17:08:44 GMT

It doesn't seem like you are sending an conn param update request from the peripheral. Like I said in my previous answer, seems like the default interval is within the wanted range so the SDK module won't send out a conn param update request.

RE: the connection inteval cannot updated

Jim — Wed, 02 May 2018 08:17:06 GMT

Hi，

Attached for crawled air package data.devzone.nordicsemi.com/.../conn_5F00_params_5F00_update_5F00_fail.pcapng

RE: the connection inteval cannot updated

Mttrinh — Wed, 25 Apr 2018 07:55:16 GMT

Hi,

How do you update the connection interval? Can you send me a sniffer trace? I seems like the default interval is within the wanted range so the SDK module won't send out a conn param update request.

RE: the connection inteval cannot updated

Jim — Wed, 18 Apr 2018 15:29:49 GMT

I use the following paramenters：

#define MIN_CONN_INTERVAL MSEC_TO_UNITS(25, UNIT_1_25_MS) /**< Minimum acceptable connection interval (0.5 seconds). */

#define MAX_CONN_INTERVAL MSEC_TO_UNITS(1000, UNIT_1_25_MS) /**< Maximum acceptable connection interval (1 second). */

#define SLAVE_LATENCY 0 /**< Slave latency. */

#define CONN_SUP_TIMEOUT MSEC_TO_UNITS(6000, UNIT_10_MS) /**< Connection supervisory time-out (4 seconds). */

#define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000, APP_TIMER_PRESCALER) /**< Time from initiating an event (connect or start of notification) to the first time sd_ble_gap_conn_param_update is called (5 seconds). */

#define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(30000, APP_TIMER_PRESCALER) /**< Time between each call to sd_ble_gap_conn_param_update after the first (30 seconds). */

#define MAX_CONN_PARAMS_UPDATE_COUNT 3 /**< Number of attempts before giving up the connection parameter negotiation. */

RE: the connection inteval cannot updated

Mttrinh — Wed, 18 Apr 2018 13:17:17 GMT

Hi,

What connection parameters are you using? Can you check if your parameters are within Apple's Guidelines?