Minimum connection interval?
Minimum connection interval?
- Subject: Minimum connection interval?
- From: John Earl <email@hidden>
- Date: Mon, 25 Mar 2013 13:51:15 +0000
Hi,
I'm using an iPhone 4S running iOS 6.1.
When starting a connection with my peripheral I see the iPhone starts the connection with a default 30ms connection interval. To try to reduce this interval to 20ms, I tried sending a connection parameter update request from the peripheral following the Apple BT LE guidelines, i.e. 20ms min, 40ms max interval. After this I am seeing a switch to a 37.5ms interval, rather than the 20ms desired.
I've tried a few other combinations of connection parameter update values, but have had my requests rejected by the iPhone.
Two questions:
1) Does there exist a set of connection parameter update parameters that would yield a connection interval less than 30ms?
2) Does there exist a set of connection parameter update parameters that can restore the 30ms interval after a longer interval has previously been requested and accepted? (e.g. to support switching from a low latency to high latency mode and later back again)
Best regards
John
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