BT(BLE) Notification 4.0 vs 4.2

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Fri, 2017-12-22 04:40

Jun-ichi Tobe

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Last seen:6 months 3 weeks ago

加入:2016-04-01 10:39

BT(BLE) Notification 4.0 vs 4.2

Hi support team!

I will ask about BT version notification.
我相信将noti提单版本fied by the LL_VERSION_IND function.
In the current SDK, this description is BT 4.0.
Is it necessary to change the setting of notation etc (4.0 → 4.2)?
I think that it probably is not necessary. Because, if that is necessary, it should be defined on the SDK side.

Now, peripheral device side uses DA14580, and SDK 5.0.4 is used.
When I test data communication flow using the Air Log tool, the version notation is "BT 4.0",not " BT 4.2."

regards,
Jun-ichi

Keywords:

LL_VERSION_IND 4.0 4.2

Device:

DA14580

Fri, 2017-12-22 15:26

MT_dialog

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Last seen:3 months 2 days ago

加入:2015-06-08 11:34

Hi Jun-ichi Tobe,

The LL_VERSION_IND is controlled by the stack and its just an indication to the peer device for what kind version the connected device supports, you cannot alter the version of the supported BLE stack (since its hardcoded in the stack). The 580 sends out a version 4.0 and not a 4.1 or 4.2 since it has a 4.0 stack and its 4.1 and 4.2 compliant (it means that it doesn't implement the optional features that the 4.1 or 4.2 versions support).

Thanks MT_dialog