Comments on: Bitbaking the kernel, Angstrom and qt4-embedded all at once

By: Doug

Doug — Mon, 28 Nov 2011 19:16:25 +0000

Sounds like no recipe, are you sure the name’s correct? If you can’t find it you might need to pull it in from the OE classic branch.

By: Jelle

Jelle — Tue, 04 Oct 2011 08:48:07 +0000

Hi Doug,

Thanks for this howto!

Only problem i have is when trying to build the toolchain:

bitbake meta-toolchain-qte

i get:

ERROR: Nothing PROVIDES ‘meta-toolchain-qte’

Ik obviously miss some files. But how to install easy?

Kind regards Jelle

By: Steffen Elste

Steffen Elste — Sun, 26 Sep 2010 09:03:32 +0000

Hi Doug,
sorry to bother You again – when i run the ‘qtdemo’ app the mouse pointer moves rather erratically, not even using up the whole area of the 7″ screen.
I’ve found a couple of descriptions on various news groups and blogs on how to configure the touch screen but not two of them identical … and what’s more, none of them seems to work reliably (at least for me)
Could You provide a brief description how You got it working, maybe even include the environment variables necessary?
Regards,

Steffen

By: Doug

Doug — Fri, 17 Sep 2010 16:55:14 +0000

Hi Steffen,

I used Qt Creator, I knocked the app together using my netbook (hp mini2133) which has a built in lis3lv triple axis accelerometer.

Once it was working i used the Qt Embedded SDK (see link below) to cross compile it, and bitbaked the kernel driver i wrote for the kxps5.

http://docs.openembedded.org/usermanual/html/ch05s08.html

Cheers,
Doug

By: Steffen Elste

Steffen Elste — Fri, 17 Sep 2010 16:27:28 +0000

@Doug
Hi Doug,
thanks – yupp, i was thinking along the lines of Qtopia …
What kind of desktop environment did You use e.g. for the ‘Qt Embedded 4.6.0 + Qwt + kxps5 accelerometer’?
Cheers,

Steffen

By: Doug

Doug — Fri, 17 Sep 2010 15:25:02 +0000

Hi Stefan, what you have is an image with the required framework to run a qt4 application. You might be confusing it with Qtopia / Qt Extended which are desktop environments. If it helps the image you have is basically the image i used to make the accelerometer / RGB LED interfaces. Doug

By: Steffen Elste

Steffen Elste — Fri, 17 Sep 2010 15:16:38 +0000

@RyanB
Hi Ryan,
had the same problem – You probably got the 64 MByte RAM / 64 MByte Flash version? Then the image won’t fit.
Boot it off the SD – i put the kernel there as well – much easier to handle because You don’t have to go through all the loops again if You make some changes (e.g. a new kernel): Power off the Mini, write the new images onto it …
Regards,

Steffen

By: Steffen Elste

Steffen Elste — Fri, 17 Sep 2010 15:12:39 +0000

@Doug
Hi Doug,
thanks for the reply – i baked the ‘mini2440-image’, with ‘qt4-embedded’ included as in your tutorial … would’ve thought that this would give me a graphical desktop as directfb, tslib & stuff are baked as well?!
Or am i missing something really obvious here?
Regards,

Steffen

By: Doug

Doug — Fri, 17 Sep 2010 12:25:08 +0000

@RyanB You're best off asking somewhere else about this, i've done nearly all my work using NFS. Sorry i can't help. Doug

By: Doug

Doug — Fri, 17 Sep 2010 12:21:43 +0000

Thanks, that sounds about right… which image have you baked? Unless it’s something like gpe-image you won’t have a GUI.