By overloading the connection I meant trying to push data at a higher rate
than the channel can handle. If all you have is I2C transactions this
should never happen. Opening a lot of analog inputs or digital inputs that
change very rapidly etc. are examples for things that can generate high
data rates.
Anyway, try over USB.
- If you don't see those problems over USB, the things to try are:
- Use a different dongle.
- Do a configuration wipe on the IOIO in order to recalibrate the
oscillator (see wiki).
- If you are still having those problems over USB, it is likely a
problem with your app. Try to reduce the app until you isolate the problem.
If you can't, send the minimum possible code that exhibits this problem and
I'll take a look.
On Tue, Mar 4, 2014 at 2:26 PM, Ping li <[email protected]> wrote:
> The app is to read a accelerometer(ADXL345) and a gyroscope(ITG3200) via
> the same I2C port. After every read, there is 10ms sleep. What is meanning
> of the "overloading the connection"? how to fix it?
>
> 在 2014年3月4日星期二UTC-5下午5时20分34秒，Ytai写道：
>>
>> What does the app do? You might be overloading the connection.
>>
>>
>> On Tue, Mar 4, 2014 at 2:10 PM, Ping li <[email protected]> wrote:
>>
>>> Hi Ytai
>>>
>>> I have a problem when using Bluetooth to read the IOIO. After Bluetooth
>>> connection, the program can work well and can read the sensors by IOIO
>>> via I2C. But, during running, the android device attemp to connect with
>>> IOIO again, that will cause the Wireless communication becaming slow so
>>> that I lost some data. I copied the log for you reference. Can you help me
>>> understand what is the reason?
>>>
>>> The Blue log shows the now speed;
>>> The RED log is the attempting to connect again
>>> The PINK log shows the read&write becomes slow.
>>>
>>> Thank you
>>>
>>> Li Ping
>>>
>>> Log:
>>> 03-04 16:57:44.391: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:44.406: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:44.414: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:44.414: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:44.422: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:44.438: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:44.446: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:44.446: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:44.453: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:44.469: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:44.477: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:44.477: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:44.485: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:44.500: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:44.508: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:44.508: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:44.516: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:44.524: V/BluetoothIOIOConnection(7187): Attempting to
>>> connect to Bluetooth device: IOIO (A3:10)
>>> 03-04 16:57:44.531: I/BluetoothPolicyService(334):
>>> getBluetoothDataTransferAllowed
>>> 03-04 16:57:44.531: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:44.539: D/BluetoothPolicyService(334): MDM: isProfileEnabled
>>> = true
>>> 03-04 16:57:44.539: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:44.539: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:44.547: D/BluetoothUtils(7187):
>>> isSocketAllowedBySecurityPolicy start : device null
>>> 03-04 16:57:44.555: V/BluetoothService.cpp(334): createDeviceNative
>>> 03-04 16:57:44.555: V/BluetoothService.cpp(334): createDeviceNative
>>> 03-04 16:57:44.555: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:44.555: V/BluetoothEventLoop.cpp(334): onCreateDeviceResult
>>> 03-04 16:57:44.555: V/BluetoothEventLoop.cpp(334): onCreateDeviceResult
>>> 03-04 16:57:44.555: E/BluetoothEventLoop.cpp(334): onCreateDeviceResult:
>>> D-Bus error: org.bluez.Error.AlreadyExists (Already Exists)
>>> 03-04 16:57:44.555: V/BluetoothService.cpp(334): discoverServicesNative
>>> 03-04 16:57:44.555: V/BluetoothService.cpp(334): ... Object Path =
>>> /org/bluez/1179/hci0/dev_00_15_83_15_A3_10
>>> 03-04 16:57:44.555: V/BluetoothService.cpp(334): ... Pattern = , strlen
>>> = 0
>>> 03-04 16:57:44.571: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:44.766: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:44.766: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:44.789: D/STATUSBAR-NetworkController(429): onReceive() -
>>> RSSI_CHANGED_ACTION, WIFI_STATE, NETWORK_STATE
>>> 03-04 16:57:44.789: D/STATUSBAR-NetworkController(429):
>>> refreshSignalCluster: data=0 bt=false
>>> 03-04 16:57:44.797: D/STATUSBAR-SignalClusterView(429):
>>> mSeparateMobileGroup=8
>>> 03-04 16:57:44.797: D/STATUSBAR-SignalClusterView(429):
>>> mSeparateMobileGroup=8
>>> 03-04 16:57:44.797: D/STATUSBAR-SignalClusterView(429):
>>> mSeparateMobileGroup=8
>>> 03-04 16:57:44.797: D/STATUSBAR-NetworkController(429):
>>> refreshSignalCluster: data=0 bt=false
>>> 03-04 16:57:44.797: D/STATUSBAR-SignalClusterView(429):
>>> mSeparateMobileGroup=8
>>> 03-04 16:57:44.797: D/STATUSBAR-SignalClusterView(429):
>>> mSeparateMobileGroup=8
>>> 03-04 16:57:44.805: D/STATUSBAR-SignalClusterView(429):
>>> mSeparateMobileGroup=8
>>> 03-04 16:57:44.906: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:44.922: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:45.039: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:45.039: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:45.383: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:45.399: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:45.531: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:45.531: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:45.688: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:45.703: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:45.789: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:45.789: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:45.930: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:45.946: V/BluetoothSocket.cpp(7187): writeNative
>>> 03-04 16:57:46.086: V/BluetoothSocket.cpp(7187): readNative
>>> 03-04 16:57:46.086: V/BluetoothSocket.cpp(7187): writeNative
>>>
>>> --
>>> You received this message because you are subscribed to the Google
>>> Groups "ioio-users" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to [email protected].
>>> To post to this group, send email to [email protected].
>>>
>>> Visit this group at http://groups.google.com/group/ioio-users.
>>> For more options, visit https://groups.google.com/groups/opt_out.
>>>
>>
>> --
> You received this message because you are subscribed to the Google Groups
> "ioio-users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to [email protected].
> To post to this group, send email to [email protected].
> Visit this group at http://groups.google.com/group/ioio-users.
> For more options, visit https://groups.google.com/groups/opt_out.
>
--
You received this message because you are subscribed to the Google Groups
"ioio-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/ioio-users.
For more options, visit https://groups.google.com/groups/opt_out.
