COM iMX25 Linux: Difference between revisions
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==<br/>FAQ == | ==<br/>FAQ == | ||
==<br/> | ==<br/>Linux virtual machine for development == | ||
=== Get the | === Get the Virtual machine === | ||
* [http://www.vmware.com/go/get-player-de Get the VMware player] | * [http://www.vmware.com/go/get-player-de Get the VMware player] | ||
* [http://dl.dropbox.com/u/19433555/Debian%20Squeeze%20v1.1.zipx Debian Squeeze VMware Image (zipx Archiv)] | * [http://dl.dropbox.com/u/19433555/Debian%20Squeeze%20v1.1.zipx Debian Squeeze VMware Image (zipx Archiv)]<br/>Password for devel user: '''devel'''<br/>Password for root user: '''root''' | ||
History: | History: | ||
| Line 23: | Line 24: | ||
=== Sources for the iMX25 Kernel: === | === Sources for the iMX25 Kernel: === | ||
* [http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.38.tar.bz2 Kernel version: 2.6.38] | * [http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.38.tar.bz2 Kernel version: 2.6.38 from www.kernel.org] | ||
* [[media:Linux-2.6.38_DHCOM_iMX25_patch.zip|Patch to DHCOM iMX25 Linux (2011-09-22)]] | * [[media:Linux-2.6.38_DHCOM_iMX25_patch.zip|Patch to DHCOM iMX25 Linux (2011-09-22)]] | ||
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=== How to build a kernel: === | === How to build a kernel: === | ||
1. tar xfjv linux-2.6.38.tar.bz2 | 1. Start the Console on Linux | ||
2. $ tar xfjv linux-2.6.38.tar.bz2 | |||
3. $ cd /kernel/path | |||
4. $ patch -p1 <linux-2.6.38_DHCOM_iMX25.patch | |||
5. $ cp .config /kernel/path | |||
6. $ ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- make uImage | |||
The uImage file will you find in ../build-linux/arch/arm/boot | The uImage file will you find in ../build-linux/arch/arm/boot | ||
==<br/>Update the | ==<br/>Update the kernel with U-Boot == | ||
You can update the linux kernel with [[COM iMX25 Bootloader U-Boot#Flash Update|U-Boot flash update]]. | |||
* [[media:Linux-2.6.38_DHCOM_iMX25_kernel.zip|Current built of the 2.6.38 DHCOM iMX25 linux kernel (2011-09-22)]] | * [[media:Linux-2.6.38_DHCOM_iMX25_kernel.zip|Current built of the 2.6.38 DHCOM iMX25 linux kernel (2011-09-22)]] | ||
1. Go to the U-Boot console by pressing <Return> on a RS232 terminal (during startup) | 1. Go to the U-Boot console by pressing <Return> on a RS232 terminal (during startup) | ||
2. update linux | 2. $ update linux | ||
==<br/>How to use/update our root file system == | |||
* [http://dl.dropbox.com/u/19433555/rootFS_DN_20110805ext4_HL1%20%2806.12.2011%29.tar.bz2 Current Debian root file system (2011-12-06)] | |||
1. Format a SD card with ext3 file system (e.g. you can use palimpsest) | |||
1. Format a SD card with ext3 file system (you can use palimpsest) | $ palimpsest | ||
2. Copy root file system onto the SD card | 2. Copy root file system onto the SD card | ||
Start the Console on Linux | |||
$ su | |||
$ chmod 755 /path/of/the/SD-card | |||
$ cd /path/of/the/SD-card | |||
$ tar xfjv Name_of_RootFS_file.tar.bz2 | |||
==<br/>How to control the display brightness == | ==<br/>How to control the display brightness == | ||
echo <value> >/sys/class/leds/pwm:out/brightness | $ echo <value> >/sys/class/leds/pwm:out/brightness | ||
value range: 0..255 | value range: 0..255 | ||
| Line 67: | Line 75: | ||
For the Qt-Browser change demoname to browser | For the Qt-Browser change demoname to browser | ||
=== Login/Shutdown system === | === Login/Shutdown system === | ||
Name: root | Login: | ||
Name: root | |||
password: foo | |||
shutdown -h now | Shutdown: | ||
$ shutdown -h now | |||
==<br/>Busybox system == | ==<br/>Busybox system == | ||
| Line 79: | Line 89: | ||
For the Qt-Browser change demoname to browser | For the Qt-Browser change demoname to browser | ||
=== Login/Shutdown system === | === Login/Shutdown system === | ||
Name: root | Login: | ||
Name: root | |||
password: n/a | |||
halt | Shutdown: | ||
$ halt | |||
Revision as of 11:51, 6 December 2011
FAQ
Linux virtual machine for development
Get the Virtual machine
- Debian Squeeze VMware Image (zipx Archiv)
Password for devel user: devel
Password for root user: root
History:
v1.1 - Debian Squeeze v1.1.zipx - Update Eclipse to Indigo with CDT 8.0
- Add demo project "crosshelloworld"
v1.0 - Debian Squeeze.zipx - First release
Setting up a Eclipse Cross Executable Project:
- Use Eclipse Indigo (version 3.7.1) for your project.
- Create a new C++ Project and choose as Executable Project type "Cross-Compile Project" and as Toolchains "Cross GCC"
- Click the Button "Next" and specify under "Tool command path" the Toolchain path. For Codesourcery it is the folder "CodeSourcery/Sourcery_G++_Lite/bin". Under Prefix type "arm-none-linux-gnueabi-".
Building your own Kernel
Sources for the iMX25 Kernel:
How to build a kernel:
1. Start the Console on Linux 2. $ tar xfjv linux-2.6.38.tar.bz2 3. $ cd /kernel/path 4. $ patch -p1 <linux-2.6.38_DHCOM_iMX25.patch 5. $ cp .config /kernel/path 6. $ ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- make uImage The uImage file will you find in ../build-linux/arch/arm/boot
Update the kernel with U-Boot
You can update the linux kernel with U-Boot flash update.
1. Go to the U-Boot console by pressing <Return> on a RS232 terminal (during startup) 2. $ update linux
How to use/update our root file system
1. Format a SD card with ext3 file system (e.g. you can use palimpsest) $ palimpsest 2. Copy root file system onto the SD card Start the Console on Linux $ su $ chmod 755 /path/of/the/SD-card $ cd /path/of/the/SD-card $ tar xfjv Name_of_RootFS_file.tar.bz2
How to control the display brightness
$ echo <value> >/sys/class/leds/pwm:out/brightness value range: 0..255
Debian system
Calibrating the touchscreen
TSLIB_TSDEVICE=/dev/input/event0 ts_calibrate
Running example Qt Apps
QWS_MOUSE_PROTO=Tslib:/dev/input/event0 /usr/qt/demos/demoname/demoname -qws For the Qt-Browser change demoname to browser
Login/Shutdown system
Login: Name: root password: foo Shutdown: $ shutdown -h now
Busybox system
Calibrating the touchscreen
TSLIB_TSDEVICE=/dev/event0 ts_calibrate
Running example Qt Apps
QWS_MOUSE_PROTO=Tslib:/dev/event0 /usr/qt/demos/demoname/demoname -qws For the Qt-Browser change demoname to browser
Login/Shutdown system
Login: Name: root password: n/a Shutdown: $ halt
