Reconnecting issue

RE: Reconnecting issue

Joakim Jakobsen — Mon, 28 Oct 2019 13:11:56 GMT

Hi.

You can take a look at this previous similar ticket:
https://devzone.nordicsemi.com/f/nordic-q-a/41976/what-event-to-wait-for-to-know-when-mtu-has-been-successfully-negotiated-with-a-central-device

Best regards,
Joakim

RE: Reconnecting issue

bscdb — Tue, 22 Oct 2019 21:24:14 GMT

Still waiting for your response! Should I be using BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST? If yes what should happen after that?

RE: Reconnecting issue

bscdb — Tue, 15 Oct 2019 04:07:58 GMT

Joakim Jakobsen

RE: Reconnecting issue

bscdb — Thu, 10 Oct 2019 14:11:31 GMT

How do I check mtu request of 32 bytes is accepted by the host?

RE: Reconnecting issue

Joakim Jakobsen — Thu, 10 Oct 2019 14:08:25 GMT

Hi.

I'm sorry, I don't think I understand your question.
Could you please re-phrase or elaborate on what it is you want to do here?

Best regards,
Joakim Jakobsen

RE: Reconnecting issue

bscdb — Thu, 10 Oct 2019 03:31:49 GMT

The below sequence happens once in 10 attempts -

1. Host bonds with device or reconnects to already bonded device

2. Host requests MTU size of 32 - success

3. Host enables notifications

4. Host receives 23 byte packets, instead of 32.

5. Host displays error message - device not found, out of range.

How can I restrict sending 23 bytes instead of 32 bytes in the firmware before MTU request is accepted?

RE: Reconnecting issue

Joakim Jakobsen — Mon, 30 Sep 2019 06:30:55 GMT

Hi.

From the code you uploaded, I can't see why you don't receive the disconnect event. You should see the disconnected event when you disconnect using your phone.

Are you using an application for connecting/disconnecting, or are you using the native bluetooth settings on the phone to connect/disconnect?

If you aren't seeing the disconnection event, you could try to reduce the connection timeout and see if you would get the timeout/disconnect event after the timeout expires.

Best regards,
Joakim

RE: Reconnecting issue

bscdb — Thu, 26 Sep 2019 22:56:19 GMT

Waiting for your reply. While I was debugging, I found out that although my Android code is disconnecting & removing the bond, which I can also see on the phone that the ble device is not listed under paired devices, the ble device (peripheral) is not disconnecting. It does not get the BLE_GAP_EVT_DISCONNECTED event. Could you suggest any workaround for this?