Telink TLSR8232 BLE SDK Developer Handbook
AN-19112700-E1 70 Ver.1.0.0
Figure 3-21 LL_CONNECTION_UPDATE_REQ Format in BLE Stack
3.2.7.12 BLT_EV_FLAG_CONN_PARA_UPDATE
Event trigger condition: When Slave is in connection state, this event will be triggered if
Slave has updated connection parameters after it receives the
“LL_CONNECTION_UPDATE_REQ” from Master.
Data length “n”: 6.
Pointer “p”: p points to the new connection parameters after update, as shown below:
p[0] | p[1]<<8: new connection interval in unit of 1.25ms
p[2] | p[3]<<8: new connection latency
p[4] | p[5]<<8: new connection timeout in unit of 10ms
3.2.7.13 BLT_EV_FLAG_SUSPEND_ENETR
Event trigger condition: When Slave executes function “blt_sdk_main_loop”, this event
will be triggered before Slave enters suspend.
Pointer “p”: Null pointer.
Data length “n”: 0.
3.2.7.14 BLT_EV_FLAG_SUSPEND_EXIT
Event trigger condition: When Slave executes function “blt_sdk_main_loop”, this event
will be triggered after Slave is woken up from suspend.
Pointer “p”: Null pointer.
Data length “n”: 0.
Note: This callback is executed after SDK bottom layer executes “cpu_sleep_wakeup”
and Slave is woke up, and this event will be triggered no matter whether the actual
wakeup source is gpio or timer. If the event “BLT_EV_FLAG_GPIO_EARLY_WAKEUP”
occurs at the same time, for the sequence to execute the two events, please refer to
pseudo code in “Power Management – PM Working Mechanism”.
3.2.7.15 BLT_EV_FLAG_PHY_UPDATE
Event trigger condition: when Salve receives LL_PHY_UPDATE_IND PDU sent by
master and PHY is updated successfully, this event will be triggered.
Pointer “p”: p points to the updated Tx and Rx PHY. PHY could be the enum values
below:
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