SAM9-L9261 Olimex Ltd., SAM9-L9261 Datasheet - Page 11

• Manufacturer Part Number: SAM9-L9261
• Description: MCU, MPU & DSP Development Tools DEV BRD FOR AT91SAM9260
• Manufacturer: Olimex Ltd.

Specifications of SAM9-L9261

• Processor To Be Evaluated: AT91SAM9260
• Data Bus Width: 16 bit, 32 bit
• Interface Type: RS-232, Ethernet, USB, JTAG
• Dimensions: 100 mm x 80 mm
• Operating Supply Voltage: 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 1776345 52R3721

TIPS AND TRICKS
The subdirectory linuxapp-testprj has two simple projects that show how to
cross-compile user applications for Linux. The fbtest.tgz archive contains
an example that draws the frame buffer from user space. The evtest.tgz
archive contains an example how to access the board buttons. Example
usage of evtest:
TIP:
ETHERNET
/etc/network/interfaces :
and add the following line:
TIP:
SPACE or ENTER to enter the U-Boot shell:
Then set the kernel boot arguments and point to your NFS exported
directory:
nfsroot=192.168.0.225:/path/to/nfs-root/
ip=192.168.0.239:192.168.0.225::255.255.255.0:emblin::none
And finally boot the kernel:
In the previous example the NFS server has IP address 192.168.0.225, and
the SAM9-L9261 client is assigned IP address 192.168.0.239 and host
name "emblin". The NFS export path is "/path/to/nfs-root"
Another option is to use DHCP:
nfsroot=192.168.0.225:/path/to/nfs-root,rsize=1024,wsize=1024,tcp
ip=::::::dhcp
TIP:
method, it must be converted to a JFFS2 image for writing to the NAND
flash. Assuming that the target root directory is located in a directory
sam9-rootfs, the JFFS2 image can be created by issuing:
demo-glibc-at91.rootfs.jffs2"
The
directory structure that can be used as a starting point.
TIP:
automatic IP configuration. This can be changed by editing the file
/etc/network/interfaces.
TIP:
order to use it, however, the root password must be set. Type as root in
board terminal:
and type the new root password. Password must be non-empty (it must
contain at least one character).
The original Angstrom root filesystem distribution does not enable the
It is possible to use an NFS root filesystem. When U-Boot boots press
After creating a root filesystem using buildroot, Angstrom or similar
By default the embedded Linux installation starts a SSH server. In
By default the board is configured to enable eth0 using DHCP for
archive
$ evtest /dev/input/event0
vi /etc/network/interfaces
auto eth0
Hit any key to stop autoboot: 0
U-Boot>
U-Boot> setenv bootargs console=ttyS0,115200 root=/dev/nfs rw
U-Boot> boot
U-Boot> setenv bootargs console=ttyS0,115200 root=/dev/nfs rw
mkfs.jffs2 --root="sam9-rootfs" -e128KiB -n -p -o"angstrom-x11-image-
passwd
connection
angstrom-atmel-demo-olimex-rootfs.tgz
by
default.
To
change
contains
that
the
open
root