About Embedded Widget Demos

Weilly

Dear all,

Does anyone know if the demo below could build for Qt Embedded?
http://developer.qt.nokia.com/wiki/EmbeddedWidgetDemos

Thanks a lot!

Best regards,
Weilly

Scylla

Yes this works here very well.

Weilly

Dear Scylla,

Thank you for your reply.
I just saw the video demo for Windows, Linux/X11 , and WinCE, so I am not sure whether this project can build for Qt Embedded.

I try to rebuild this project for Windows, Linux/X11 and WinCE. It works. However, I have trouble for Embedded Linux. I can successfully build this project under Qt Embedded platform however I download it to my target device and run. It shows some error as below:

catalog: line 1: ELF@@@@@@@@@@: not found
catalog: line2: syntax error: word unexpected (expecting ">")

I think I must loss some steps to deploy the executable file. Could you give me some hints.

Best regards,
Weilly

Scylla

How did you compile the Qt Embedded libs (which target, which toolchain a.s.o)?
You have to compile your app with the same toolchain and libs!

Weilly

My target is Linux running on a ARM9.
My PC is Ubuntu 10.10.

The toolchain version is:
http://www.codesourcery.com/public/gnu_toolchain/arm-none-linux-gnueabi/arm-2007q1-10-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2

I try to configure my Qt Embedded using below command:
./configure -static -embedded arm -xplatform qws/linux-arm-g++ -v

I am not sure if I use right ./configure for Qt Embedded?! Thank you!

Weilly

Finally, I soved this problem. Thank you, Scylla. I can build this project and deploy it to me target device. Now I have to do is to make touch screen works.

Scylla

Sorry for the late response. Ok you solved the problem. What I have done is to put the widgets in seperate lib and use them. So do not have to handle with the *.pri files.

For our device I made a touch driver. At first you should try the "drivers":http://pepper.troll.no/s60prereleases/doc/qt-embedded-pointer.html shiped with Qt.

Weilly

Thank you for your response. I am trying tslib from http://tslib.berlios.de/ . Have any comment for this? Thank you.

brijeshvpatel

In tslib you can take care about following things;

Configure and build QtEmbedded with support of your tslib built directory
Take care about following export macros in target machine

export TSLIB_TSDEVICE=/dev/input/event1
export TSLIB_PLUGINDIR=/opt/tslib_build/lib/ts
export TSLIB_CONSOLEDEVICE=none
export TSLIB_CALIBFILE=/etc/pointercal
export TSLIB_FBDEVICE=/dev/fb0
export TSLIB_CONFFILE=/opt/tslib_build/etc/ts.conf

Take care about pointercal
Take care about framebuffer rotation

Weilly

Thank you, Brijesh. Actually, I have adjusted these parameters you said above. However, I met an error message "Segmentation fault". I am not sure what happened.

brijeshvpatel

Hi Weilly,

Can you tell me where exactly you are getting Segmentation Fault? Can you describe your issue?

Weilly

Hi Brijesh,

I am sorry for the late response. Now, I try early version of tslib to build this project. It works. I don't know why using tslib v1.0 will cause "Segmentation fault" but the early version won't at my target.