Multi role in SDK 15 - Scanning for devices only working when peripheral is not connected

[Andy]

Hi,

I'm trying to get the scanning procedure to work while my device is connected to a phone. At the moment, even though I start the scanning procedure, I don't get any BLE_GAP_EVT_ADV_REPORT events.

As soon as the peripheral link is terminated (i.e. phone disconnects), I start getting the adv report events. This happens without me telling the scanning procedure to start again, as far as I'm concerned the scanning was started already.

What could be going wrong? Is scanning while connected not supported? I haven't read any limitations about this in the documentation.

Any help with this is appreciated :)

[awneil]

This is the expected, normal behaviour - peripherals don't advertise while they are connected!

[Andy]

I said scanning, not advertising. 

[awneil]

I know.

But the scanning won't detect any advertising when there's no advertising happening!

[Andy]

There are plenty of devices advertising around me. My phone can see at least 10. I expect my device to be able to scan for these devices while it is connected to my phone. 

[awneil]

I think you need to give a fuller explanation of what, exactly, is going on.

What, exactly, is "your device" ?

What is doing the advertising?

A diagram would help ...