BTstck drops (disconnects) from gps

[GoogleCodeExporter]

What steps will reproduce the problem?
1.BTstack drops bluetooth connection to tomtom mkii gps receiver after ipod is 
disconnect from power.  As long as ipod is plugged in, bluetooth connection has 
never dropped.
2.Time between dropped connection is variable, from 10 minutes to it seems 
stable.
3.

What is the expected output? What do you see instead?

What version of the product are you using? On what operating system?
Ipod touch model MC540LL/A  using IOS 6.1

Please attach a package log, as described here:
http://btstack.uservoice.com/knowledgebase/articles/69548-how-to-get-
btstack-communication-log

and provide any additional information below.

Original issue reported on code.google.com by jpjkbra...@gmail.com on 24 Mar 2013 at 2:26

Attachments:

• hci_dump.pklg

[GoogleCodeExporter]

Sorry - using BTstack GPS1.7.4

Original comment by jpjkbra...@gmail.com on 24 Mar 2013 at 2:28

[GoogleCodeExporter]

thanks for the log. In the log, the connection is disconnected from the iOS 
side. This means it was either a user action ('disconect') or BTstack GPS got 
stopped/killed. Could you install CrashReporter and see if you get a crash 
report? and/or, install syslogd and see if it mentions why it stopped. I have 
no idea why having power or not would make a difference.

Original comment by matthias.ringwald@gmail.com on 1 Apr 2013 at 2:17

[GoogleCodeExporter]

Thanks for the response.  I installed CrashReporter last Tuesday - and of 
course, it hasn't crashed since I did that - I guess a watched ipod never 
crashes :).  I will send a crash report if and when it crashes again.  The 
circumstances of it crashing (and it was an every day occurrence) was I would 
disconnect it from power and put it in my pocket for our morning walk.  It 
would crash anywhere from 10 minutes to an hour after being put in my pocket.

Original comment by jpjkbra...@gmail.com on 7 Apr 2013 at 5:23

[GoogleCodeExporter]

Bluetooth disconnected this morning; no crash report was generated and 
syslogviewer doesn't show anything either.  I will continue to monitor.

Original comment by jpjkbra...@gmail.com on 8 Apr 2013 at 1:20

[GoogleCodeExporter]

I have had several other disconnects from the gps receiver and no crash logs 
were generated.  I saw in another thread where you plan (or at least hope) to 
at some time  have an automatic reconnect feature that will restart the btstack 
and connect automatically to the last used gps device; that would solve my 
issue, as the gps device stays running without being connected to a bluetooth 
device for about 5 min.  I will continue to see if I can get a crash report, 
but am not optimistic.

JPB

Original comment by jpjkbra...@gmail.com on 11 Apr 2013 at 1:49

[GoogleCodeExporter]

Hi. if you have a disconnect, but no crash, please upload the hci_dump.pklg. In 
this case, there should be a disconnect that is generated from the Bluetooth 
module itself (then I cannot do much).

The reconnect is a bit tricky. Trying a single reconnect actually could help in 
some cases. In the general case, the Bluetooth GPS isn't around anymore and we 
don't know when it will come back.

Original comment by matthias.ringwald@gmail.com on 15 Apr 2013 at 10:22

[GoogleCodeExporter]

Thanks - I will do so.  I have not been having blutooth gps generate the 
hci_dump.pklg, but will restart.  For whatever reason, bluteooth gps has not 
been disconnecting like it was - I think maybe only 3 times in the 3 weeks 
since I first posted; prior to that it was an almost daily occurrence. However, 
the dump package I uploaded initially was from a disconnect typical of what I 
was experiencing, so I wouldn't expect anything different.  I understand the 
difficulties of an automatic reconnect when the bluetooth device has left the 
range of the ipod; however, in cases like mine, it could work.

JPB

Original comment by jpjkbra...@gmail.com on 15 Apr 2013 at 12:22

[GoogleCodeExporter]

attached are a syslog and crash log for btstack - I think it also got sent via 
cydia.

Original comment by jpjkbra...@gmail.com on 18 Apr 2013 at 10:19

Attachments:

• syslog.txt
• [crash log.txt](https://storage.googleapis.com/google-code-attachments/btstack/issue-329/comment-8/crash log.txt)