COM iMX25 Linux: Difference between revisions
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* [[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. Copy the "uImage" and "uImage.env" file onto a | 1. Copy the "uImage" and "uImage.env" file onto a microSD card with a FAT file system | ||
2. Insert the | 2. Insert the microSD card and start the system | ||
3. Go to the U-Boot console by pressing <Return> on a RS232 terminal (during startup) | 3. Go to the U-Boot console by pressing <Return> on a RS232 terminal (during startup) | ||
4. $ update linux | 4. $ update linux | ||
| Line 56: | Line 56: | ||
* [http://dl.dropbox.com/u/19433555/rootFS_DN_20110805ext4_HL2%20%2808.12.2011%29.tar.bz2 Current Debian root file system (2011-12-08)] | * [http://dl.dropbox.com/u/19433555/rootFS_DN_20110805ext4_HL2%20%2808.12.2011%29.tar.bz2 Current Debian root file system (2011-12-08)] | ||
1. Format a | 1. Format a microSD card like following (in linux e.g. you can use palimpsest) | ||
MBR partition scheme | |||
2. Copy root file system onto the | P1 FAT (100MB) | ||
P2 ext3 (residual space) | |||
2. Copy root file system onto the ext3 partition of the microSD card | |||
Start the Console on Linux | Start the Console on Linux | ||
$ su | $ su | ||
$ chmod 755 /path/of/the/ | $ chmod 755 /path/of/the/microSD card | ||
$ cd /path/of/the/ | $ cd /path/of/the/microSD card | ||
$ tar xfjv Name_of_RootFS_file.tar.bz2 | $ tar xfjv Name_of_RootFS_file.tar.bz2 | ||
==<br/>Debian system == | ==<br/>Debian system == | ||
Revision as of 14:01, 18 January 2012
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. Copy the "uImage" and "uImage.env" file onto a microSD card with a FAT file system 2. Insert the microSD card and start the system 3. Go to the U-Boot console by pressing <Return> on a RS232 terminal (during startup) 4. $ update linux
How to use/update our root file system
1. Format a microSD card like following (in linux e.g. you can use palimpsest) MBR partition scheme P1 FAT (100MB) P2 ext3 (residual space) 2. Copy root file system onto the ext3 partition of the microSD card Start the Console on Linux $ su $ chmod 755 /path/of/the/microSD card $ cd /path/of/the/microSD card $ tar xfjv Name_of_RootFS_file.tar.bz2
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
