Does the latest version of S110 support BLE 4.1's "Connection Parameters Request Procedure"?

[jprofit]

I'm wondering if the latest version (8.x) of S110 supports BLE 4.1's "Connection Parameter Request Procedure". This procedure is described in the BLE 4.2 spec Volume 6, Part B, Section 5.1.7.

In particular, I would like to know if Nordic supports the ability for a Peripheral Role device to negotiate acceptable connection parameters with a central via LL_CONNECTION_PARAM_REQ and LL_CONNECTION_PARAM_RSP messages.

[Ulrich Myhre]

Hi,

Currently, there is no support for the connection parameter request procedure. We do however support setting the Peripheral Preferred Connection Parameter (PPCP) characteristic, which some centrals might take into account. It is also possible to put PPCP in advertisement data. We also support slave-initiated connection parameter update request, where you can request the central to change the parameters. (Of course, the central is free to choose other parameters, which is probably why you are asking this question.)

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[jprofit]

A slave initiated connection parameter update procedure works, but it doesn't prevent or change the fact that the Android phone will issue its own param update to try to speed up the discovery and bonding related messages. Since my target can't tolerate the 7.5ms connection interval for even for a short time, I can''t respond with the request fast enough to avoid disaster on my target.