SAM9-L9261 Olimex Ltd., SAM9-L9261 Datasheet

MCU, MPU & DSP Development Tools DEV BRD FOR AT91SAM9260

SAM9-L9261

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

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
SAM9-L9261
User Manual
All boards produced by Olimex are ROHS compliant
Rev.C, September 2009
Copyright(c) 2009, OLIMEX Ltd, All rights reserved

Related parts for SAM9-L9261

SAM9-L9261 Summary of contents

Page 1

... SAM9-L9261 All boards produced by Olimex are ROHS compliant Copyright(c) 2009, OLIMEX Ltd, All rights reserved User Manual Rev.C, September 2009 ...

Page 2

... NAND Flash. The board has Ethernet 100Mbit controller, USB host, USB device, RS232 and 20 pin extension port with unused SAM9261 GPIO ports available for add-on boards. SAM9-L9261 has waste amount of Flash and RAM and runs a 2.6.27.4 Linux. RTC clock is backed up with 3V Li battery. ...

Page 3

SCHEMATIC ...

Page 4

... The typical operation of each boot loader is to load the next stage program into SDRAM and then execute a JUMP to its start address. AT91BOOTSTRAP Version 2.4 of at91bootstrap has been used, along with minor modifications to add support for the SAM9-L9261 board. To compile from source: Extract the sources: tar xjf at91bootstrap-2.4-olimex.tar.bz2 cd at91bootstrap-2.4-olimex http://www.codesourcery.com -> ...

Page 5

... LINUX KERNEL The used kernel is a mainstream 2.6.30 slightly modified to include support for the SAM9-L9261 board. As with the bootloaders, the modifications were based on the source files for Atmel's AT91SAM9261EK board. In order to compile the kernel its sources must be extracted first: tar xjf linux-2 ...

Page 6

... Debian or some pre-compiled Angstrom image. The root filesystem used in SAM9-L9261 is a slightly modified version of the official Atmel Linux demo binary. Additional software can easily be installed by the command "ipkg", provided that the board is connected to Internet via Ethernet cable. Run ipkg from the SAM9-L9261 shell prompt to see the available options ...

Page 7

... Windows should find the necessary drivers from the previous AT91- ISP installation. 8. Extract the contents of the sam9-l9261-samba.zip archive to a temporary directory. 9. Run the sam9_l9261_demo_linux.bat script from that directory. 10. After a couple of minutes Notepad will be opened with the log file of the write operation. ...

Page 8

LEDs can be manually controlled from the Linux shell prompt. For example, to switch on LED2: echo 255 > /sys/class/leds/led2/brightness And to switch it off: echo 0 > /sys/class/leds/led2/brightness EXTENSION PORT The board has an extension port EXT with eleven ...

Page 9

... The JTAG connector allows a debugger to talk via a JTAG (Joint Test Action Group) port directly to the core. Instructions may be inserted and executed by the core thus allowing SAM9261 memory to be programmed with code and executed step by step by the host software. For more details refer to IEEE Standard 1149.1 - 1990 Standard Test Access Port and Boundary Scan Architecture and SAM9261 datasheet ...

Page 10

... The SMD jumpers WP_E and CP_E must be soldiered specially configured version of the Linux kernel must be used. A precompiled binary can be found in the “sam9-l9261-samba- sdmmc.zip” archive. The configuration for this kernel can be loaded in the kernel source tree with the following command CAVEAT: prevent it from working properly with some SD/MMC cards ...

Page 11

... And finally boot the kernel: U-Boot> boot 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: U-Boot> setenv bootargs console=ttyS0,115200 root=/dev/nfs rw nfsroot=192 ...

Page 12

... And then save the settings to dataflash: saveenv Another option is to open the programming script sam9-l9261-samba/sam9_l9261_demo_linux.tcl and set the Ethernet address there. Search for "ethaddr" to find where to edit. Then reflash the board memories (see the RESTORING THE INSTALLATION section). ...

Page 13

REFERENCES http://www.atmel.com/products/at91 http://www.linux4sam.org http://www.at91.com http://www.codesourcery.com http://www.kernel.org http://maxim.org.za/at91_26.html http://u-boot.sourceforge.net http://www.angstrom-distribution.org ...

Page 14

... ORDER CODE: SAM9-L9261 How to order? You can order to us directly or by any of our distributors. Check our web Revision history: REV.A - created, October 2008 REV.B - updated kernel and U-Boot, June 2009 REV.C - add a few more tips – assembled and tested (no kit, no soldering required) www ...

Page 15

... This document is intended only to assist the reader in the use of the product. OLIMEX Ltd. shall not be liable for any loss or damage arising from the use of any information in this document or any error or omission in such ...

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