today simple test ble_nus_string_send time-consuming function, but found that the implementation of a ble_nus_string_send and wait for the success of transmission time-consuming about 11~13ms is a normal value? (ATT_MTU = 247, LL payload size = 31,event length =6) The time I got by calculating tick2 - tick1.
If I want to send 6 LL packets in a connection event, what should I call? Sd_ble_gatts_hvx call seems to be just a connection event sent a LL packet? I am a bit confused
APP_TIMER_DEF(test_timer);
ble_nus_on_ble_evt()
{
.
.
case BLE_GATTS_EVT_HVN_TX_COMPLETE:
tx_completeflg = 1;
break;
.
.
}
main()
{
uint32_t tick1,tick2;
.
.
app_timer_start(test_timer);
tick1 = app_timer_cnt_get();
ble_nus_string_send();
while(tx_completeflg ==0)
tick2 = app_timer_cnt_get();
app_timer_stop(test_timer);
.
.
}
