CoreExpress Carrierboard Manual v1.0
2 Preinstalled Ubuntu on micro SD card
To make the start easier, we already preinstalled
Ubuntu 9.04 on a 8 GB micro SD card.
2.1 Login
The OS boots to a console login by default.
•User: asctec
•Password: asctec
To start the grahical user interface, run startx.
Serial console login Alternatively, you can login
via a serial console (38400, 8, N, 1) on UART1.
tty6 is configured to output/receive commands on
/dev/ttyUSB1.
2.2 Drivers
2.2.1 Wifi
The stock dirvers coming with Ubuntu 9.04 still
have issues with the support of 801.11n for the
latest wireless LAN cards. Therefore, we com-
piled and installed the drivers from http://www.
linuxwireless.org/. We recommend the use
of WLAN devices with Atheros chipsets because
Linux driver support seems to be the best. A list of
supported devices is also available at http://www.
linuxwireless.org/
If you update your kernel, please download the latest
version of the Linux wireless driver that is suitable to
the new kernel version, install the kernel-headers and
compile and install the new driver version.
We removed the GNOME Networkmanager and in-
stalled the networkmanager wicd instead. wicd runs
more stable and runs as a service. You can config-
ure it with a GUI to automatically connect to you de-
sired wireless network. Once configured properly, the
connection will be established without having to log
into your system locally. Depending on your wireless
device, one of the blue status LEDs indicates that a
connection is established.
Attention: Wireless networks secured with WEP do
not support 802.11n speed! Either use unsecured
wireless networks or better WPA(2) secured networks
with AES encryption.
2.2.2 USB Client port
You can use the USB client port (port 3) to act ei-
ther as mass storage device or as a networking device
using the Linux-USB Gadget API Framework, which
is already installed. For a full documentation, see
http://www.linux-usb.org/gadget.
Additionally, to make the gedget drivers working with
the USB-client port, you need to patch and recompile
your kernel. The patch and a manual is located in the
folder “intel.com” on the Desktop of the user asctec.
2.2.3 Graphics
The Intel GMA500 graphics card is not supported by
Ubuntu 9.04 by default. Therefore,
deb http://ppa.launchpad.net/
ubuntu-mobile/ppa/ubuntu jaunty main
deb-src http://ppa.launchpad.net/
ubuntu-mobile/ppa/ubuntu jaunty main
was added to the repositories list
and the packages psb-firmware
psb-modules psb-kernel-source
psb-kernel-headers xpsb-glx
poulsbo-driver-2d were installed.
Ascending Technologies GmbH - 6 - www.asctec.de
