[Qemu-devel] Tiny but full featured demo based on qemu-system-arm

2007-05-09 Thread Michael Opdenacker 
Here's a demo everyone here can start in less than 1 minute:
http://free-electrons.com/community/demos/qemu-arm-directfb/

You just have to download 1 file and run qemu. Let it surprise you!

This demo shows that it's possible to implement a full-featured embedded
system with a graphical interface within 2.1 MB!

Feedback, suggestions and contributions are welcome!

:-)

Michael.

-- 
Michael Opdenacker, Free Electrons
Free Embedded Linux Training Materials
on http://free-electrons.com/training
(More than 1500 pages!)

[Qemu-devel] Running u-boot on qemu's emulation of arm integratorcp926?

2006-10-27 Thread Michael Opdenacker 

Hello,

My plans are to use qemu's arm system emulation for u-boot demonstration 
and education purposes:


   * In my embeded Linux training sessions, to practice with U-boot
 without having to carry real boards, with their cables and power
 supplies (which would definitely make customs officers frown and
 think I'm importing commercial or even sensitive devices).
   * For students and community members, to get familiar with U-boot
 without having to get real hardware.
   * To create qemu/U-boot demos, showing the capabilities of both tools.

Has anyone already experimented with this? I haven't found any useful 
detail on the net yet.


As I have no U-boot development knowledge yet, I started in a naive, 
optimistic way:


   * Got U-boot 1.1.5 sources
   * Configured U-boot for the arm integratorcp926 board:
 make make cp926ejs_config
   * Compiled U-boot with a gcc 3.4.x cross compiling toolchain for arm:
 export PATH=/usr/local/uclibc-0.9.28-3/arm/bin:$PATH
 make
   * Ran qemu:
 qemu-system-arm -kernel ~/tmp/tmp/u-boot-1.1.5/u-boot.bin -nographic

(qemu) qemu: fatal: Board reset
R00=1000 R01=0008 R02=0013 R03=
R04= R05= R06= R07=
R08= R09= R10= R11=
R12=00010064 R13= R14=000100f4 R15=000103a0
PSR=81d3 N--- A svc32 bff14784
s00=(0.00) s01=(0.00) d00=(0.00)
s02=(0.00) s03=(0.00) d01=(0.00)
s04=(0.00) s05=(0.00) d02=(0.00)
s06=(0.00) s07=(0.00) d03=(0.00)
s08=(0.00) s09=(0.00) d04=(0.00)
s10=(0.00) s11=(0.00) d05=(0.00)
s12=(0.00) s13=(0.00) d06=(0.00)
s14=(0.00) s15=(0.00) d07=(0.00)
s16=(0.00) s17=(0.00) d08=(0.00)
s18=(0.00) s19=(0.00) d09=(0.00)
s20=(0.00) s21=(0.00) d10=(0.00)
s22=(0.00) s23=(0.00) d11=(0.00)
s24=(0.00) s25=(0.00) d12=(0.00)
s26=(0.00) s27=(0.00) d13=(0.00)
s28=(0.00) s29=(0.00) d14=(0.00)
s30=(0.00) s31=(0.00) d15=(0.00)
FPSCR: 
Aborted

Now, I know that as usual,  I need time and patience to get more 
familiar with the emulated board and with U-boot requirements.


However, if any of you has suggestions for doing that or experience to 
share, your are most welcome!


   I will keep you posted in the next days and weeks.

   Cheers,

   Michael.

--
Michael Opdenacker, Free Electrons
Free Embedded Linux Training Materials
on http://free-electrons.com/training
(More than 1000 pages!)



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[Qemu-devel] arm-test updated to linux-2.6.18

2006-10-26 Thread Michael Opdenacker 

Hello,

I updated the arm-test testcase (from Paul Brook) for linux-2.6.18 
(instead of 2.6.17-rc3).

See http://free-electrons.com/pub/qemu/demos/arm/arm-test/linux-2.6.18/

I tested it successfully with qemu-0.8.2.

Note that I never managed to make the graphics work with the 2.6.17-rc3 
version (whatever the qemu version). With this version, everything works 
great.


You may want to update the version on http://qemu.org/download.html with 
this new one.


   Cheers,

   Michael.

--
Michael Opdenacker, Free Electrons
Free Embedded Linux Training Materials
on http://free-electrons.com/training
(More than 1000 pages!)



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