Multiple ACL Connections (extended advertising)

RE: Multiple ACL Connections (extended advertising)

Dekel — Tue, 09 Jul 2024 09:25:48 GMT

Hi Brian,

As to my concern, this case can be closed.

Thanks for checking that.

RE: Multiple ACL Connections (extended advertising)

Brian Kim — Tue, 09 Jul 2024 09:15:59 GMT

Hello Dekel,

Do you mean this case is not valid any more or is there anything we can do for this case?

Best regards,

Brian

RE: Multiple ACL Connections (extended advertising)

Dekel — Tue, 09 Jul 2024 08:19:47 GMT

Hi AHuag,

thanks for taking care of my case.

I've actually decided to continue with a workaround, so the path of mutltiple ACL connections is no longer needed.

RE: Multiple ACL Connections (extended advertising)

AHaug — Mon, 08 Jul 2024 12:35:06 GMT

Hi,

Karl is unfortunately no longer in office so we will reassign this case. It will however take some time to sync up with the information, but I'll discuss the issue with Brian. I'll get back to you when I have something more constructive for you.

In the meanwhile let me know if you've resolved the issue or not.

Kind regards,
Andreas

RE: Multiple ACL Connections (extended advertising)

Dekel — Fri, 28 Jun 2024 07:20:14 GMT

Thanks for the feedback.

So I tried advertising once as you suggested (the loop runs once), and the first connection is established successfully. At this point, the advertisement is not seen anymore in the smartphone app, although MAX_CONN=2.

Therefore, I tried calling bt_le_ext_adv_start() after a successful connection, but I receive "ENOMEM". I'll mention that I call this function with the same bt_le_ext_adv* parameter (1st one) that I used on the previous call.

What am I doing wrong here?

RE: Multiple ACL Connections (extended advertising)

Karl Ylvisaker — Thu, 27 Jun 2024 11:17:19 GMT

Hello,

Glad to hear that you've already got the example made by Brian up and running! :)

The good news is that you do not need to re-do the calls to bt_le_ext_adv_create in the for loop - you can start advertising once, and so long as you are not at the limit for concurrent connections you can continue to use the same advertising set to connect multiple devices.
If you comment out the for loop (i.e only do the _create and _set once), and you connect to a device (still using MAX_CONN=2), are you seeing the advertisements stop after having connected the first one?
If so, could you share more of your code around the connection establishments?

Best regards,
Karl