Re: fastest connection interval
Re: fastest connection interval
- Subject: Re: fastest connection interval
- From: Etan Kissling <email@hidden>
- Date: Wed, 13 Mar 2013 17:25:43 +0000
- Thread-topic: fastest connection interval
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Bob,
You should only count on the guidelines. The rest can (and did) change in the past.
Also, there is a range of issues that occurs more often when using out-of-bounds parameters. For example, you will encounter more Bluetooth stack resets if streaming too fast or if maintaining too many concurrent connections.
Etan
On 13.03.2013, at 15:01, "Bob Frankel" < email@hidden> wrote:
hi,
i'm running ios 6.1.2 on my iphone and
recently noticed that the default connection interval -- assuming i don't request
a parameter update from my peripheral -- is 29ms according
to my packet sniffer; in the past, this value was in the 100ms range....
experimenting a little, i found that i could send a parameter update request with a minimum connection interval of (8 * 1.25ms) and a maximum connection interval of (16 * 1.25) and the iphone would *accept* this
request and change the connection interval to 18ms (15 * 1.25).... isn't this outside of the apple bluetooth guidelines, which require a minimum connection interval
of 20 ms (16 * 1.25ms)????
note that requests for shorter intervals were rejected....
is this a fluke, or is this behavior something we can count on....
bob.
Bob Frankel, CTO
Emmoco, Inc | Embedded Mobile Control
c: +1-805-680-0112
e: email@hidden
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