what's difference between link-lost and disconnect?

RE: what's difference between link-lost and disconnect?

leo.ni — Mon, 28 Sep 2015 02:25:55 GMT

Thanks! i'll try it as what you say.

RE: what's difference between link-lost and disconnect?

RK — Sun, 27 Sep 2015 03:54:18 GMT

that probably just means that iOS and android do something different when you turn off bluetooth. If android closes down the connections before it shuts the bluetooth chip down then you won't see a link loss, you'll see a disconnection, if iOS just turns the bluetooth chip off, then the link will time out and you'll see the link loss.

Put a packet sniffer on to see what's happening.

RE: what's difference between link-lost and disconnect?

leo.ni — Sun, 27 Sep 2015 02:18:27 GMT

Under the same condition,my device's behavior is deffernce.it can alarm on ios platform,can't alarm on android platform.Thanks again.

RE: what's difference between link-lost and disconnect?

Susheel Nuguru — Sat, 26 Sep 2015 20:15:55 GMT

what do you man by alamed on and not alaramed on?

RE: what's difference between link-lost and disconnect?

leo.ni — Sat, 26 Sep 2015 01:40:36 GMT

Thanks ,Aryan!There is a new problem:When i turned off bluetooth switch on my phone directly,my device alarmed on ios platform and not alarmed on android.Can you help me?

RE: what's difference between link-lost and disconnect?

Susheel Nuguru — Fri, 25 Sep 2015 13:03:36 GMT

Hi, I had to edit my previous answer because i misunderstood the question the first time.

I am guessing that the link-loss is due to peer out of range or non responsive in that case you will get

p_ble_evt->evt.gap_evt.params.disconnected.reason = BLE_HCI_CONNECTION_TIMEOUT  (0x08)

if it is proper disconnect then

p_ble_evt->evt.gap_evt.params.disconnected.reason = BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION(0x13)