How to use the QSensorReading's setTimestamp() function?

[jacky.finalfantasy]

I see the QAccelerometerFilter_Inherit::filter ( QAccelerometerReading * reading ) function be called every 26 milli-seconds.
Can I change 26 milliseconds to other values using QSensorReading's setTimestamp() function?
I already try it, but not working.

I fear that 26 milli-seconds be changed one day.

[symbianyucca]

it is not changing any sensor refresh rate, its simply used for setting the time stamp value as documented: http://doc.qt.nokia.com/qtmobility/q...l#setTimestamp

[jacky.finalfantasy]

Thanks, symbianyucca.

I think that I need keep reading->timestamp() data in the QAccelerometerFilter_Inherit::filter ( QAccelerometerReading * reading ) function.
And then calculate the delta timestamp and refresh rate.

PS: When first time go to filter() function, I call setTimestamp(0). And dump the reading->timestamp(), the following is the log. Now I remove the setTimestamp(0) in the code.

[Qt Message] timestamp: 0 acceleration: "1.24 4.94 7.42"
[Qt Message] timestamp: 63504380798562750 acceleration: "1.39 5.10 7.42"
[Qt Message] timestamp: 63504380798588750 acceleration: "1.24 5.10 7.26"
...

[symbianyucca]

Yep, at behaves as expected indeed. anyway did you still have problem that needs solving ?

[jacky.finalfantasy]

Dear symbianyucca:

No problem for the flow!! Thank you very much!

Another problem:
Today(2012/05/08), I update the QtSdk to revision 8cd370e163.
I find that qtmobility's sensors/accel sample cannot run on my Nokia 700 phone. But it can run on my C7-00 phone.
Before updates, the two phones all can work.

Error message in CODA:
Executable file: 6259 2012-05-08T21:09:10 C:\QtSDK\Symbian\SDKs\SymbianSR1Qt474\\epoc32\release\armv5\urel\accel.exe
Connecting to 192.168.11.4:1534...
Connected.
Launching: accel.exe
Launch failed: Command answer [command error], 1 values(s) to request: 'C|4|Processes|start|""|"accel.exe"|[""]|[]|true'
#0 {"Code":-5,Format="Failed to create the process (verify that the executable and all required DLLs have been transferred) (functionality is not supported)"}
Error: 'Failed to create the process (verify that the executable and all required DLLs have been transferred) (functionality is not supported)' Code: -5
Finished.

Error message on phone: "Home screen: Feature not supported". (PS: this message seems happen in Janurary)

The following is the phone model=>

Nokia C7-00 phone:
Release: Symbian Belle
Software version: 111.030.0609

Nokia 700 phone:
Release: Symbian Belle
Software version: 111.010.1009

Jacky

[jacky.finalfantasy]

Dear symbianyucca:

No other flow issue need resolved. Thank you very much.

But today(2012/05/08), I update the new QtSdk to revision 8cd370e163.
I found that qtmobilty's accel sample cannot run on one phone. (I use two phone test.)
Before update, the two phones all can run.

The two phone are:
Nokia 700: (cannot run after update sdk)
Release: Symbian Belle
Software version: 111.010.1009
Nokia C7-00: (can run after update sdk)
Release: Symbian Belle
Software version: 111.030.0609

Error message in CODA:
Executable file: 6259 2012-05-08T21:09:10 C:\QtSDK\Symbian\SDKs\SymbianSR1Qt474\\epoc32\release\armv5\urel\accel.exe
Connecting to 192.168.11.4:1534...
Connected.
Launching: accel.exe
Launch failed: Command answer [command error], 1 values(s) to request: 'C|4|Processes|start|""|"accel.exe"|[""]|[]|true'
#0 {"Code":-5,Format="Failed to create the process (verify that the executable and all required DLLs have been transferred) (functionality is not supported)"}
Error: 'Failed to create the process (verify that the executable and all required DLLs have been transferred) (functionality is not supported)' Code: -5
Finished.

Error message in the phone:
Home screen:Feature not supported

Jacky