GESBC-9260/GESBC-9260B User`s Manual
Contents
1. The net work address and server address must be set before network transfer can take place The following commands will set the SBC IP address and server IP address set ipaddr XXX XXX XXX XXX set serverip XXX XXX XXX XXX The server IP is the IP address where a TFTP server must be run To load Linux kernel type in the following command t 0x22000000 ulmage The U boot will load ulmage file from the TFTP server whose IP address is specified by the serverip environment vairbale The NAND FLASH sectors must be erased first before new kernel image can be stored The following command will erase the NAND FLASH sectors reserved for Linux kernel nand erase 0x100000 0x200000 The use the flowing command to store the kernel image from SDRAM to NAND FLASH nand write jffs2 0x22000000 0x100000 0x200000 Version 0 2 Page 19 of 23 22 Jun 09 GESBC 9260 User s Manual The following commands can be used to load root file system into the FLASH memory nand erase 0x400000 available_nand_flash_memory_size t 0x21000000 rootfs img nand write jffs2 0x21000000 x0400000 S filesize Please be noted that the image is first loaded into the SDRAM and then stored into the FLASH memory The image size can not exceed the available SDRAM on the board After the kernel and root file system have been updated the board can be simply reboot by recycle the power Version 0 2 Page 20 of 23 22 Jun2. tar jxvf lt cross compiler tar file directory gt Generic arm_gcc 4 2 3 Gli be 2 343 stan bz2 2 Set up the directory path variable export PATH usr local arm gcc 4 2 3 glibc 2 3 3 arm unknown linux gnu bin PATH Version 0 2 Page 21 of 23 22 Jun 09 GESBC 9260 User s Manual above command can be included in the shell resource file so it is executed every time you login For bash shell a good place to put is in bashrc in your home directory Compile Linux Kernel The GESBC 9260 is shipped with Linux kernel version 2 6 27 The patch for the kernel source tree is available at Glomation website in the support page Prepare Linux Kernel source Obtain the kernel source 2 6 27 from http www kernel org Untar the Linux kernel tar xJf linue 2 6 27 bz2 Obtain the kernel patch from http www linux4sam org twiki bin view Linux4S A M LinuxKernel Patch the kernel source with the following command patch pl lt lt patch file directory path gt patch file name Configure Linux Kernel The GESBC 9260 can use the default configuration file for the Atmel AT91SAM9260 ek evaluation board make ARCH arm CROSS COMPILE arm unknown linux gnu at91sam9260ek defconfig If additional configuration is required executing the following command in the Linux kernel directory make ARCH arm CROSS COMPILE arm unknown linux gnu menuconfig If problem occurs make sure the default PATH variable is set to the correct too
3. 09 GESBC 9260 User s Manual Chapter 5 Development Tools Overview This chapter provides a brief introduction to development tools that are available for the AT91SAM9260 System on a Chip processor The central processing core on the AT91SAM9260 is a 200 MHz ARM926EJ S processor The ARM926EJ S RISC processing core is supported through various toolsets available from third party suppliers The typical toolset required for the code development is a compiler assembler linker and a source level code debugger Code debugging is supported via the on chip JTAG interface Linux Development Tool Chain The Linux development tool chain is available at Glomation website in the support page A host PC running Linux operating system is required to run the development tools This guide assumes user had basic Linux or Unix application development knowledge Host Computer Requirement The host PC should run Redhead SuSe or other Linux distribution a RS 232 serial port at least 500MB free disk space and a terminal program such as minicom Hardware Connection A null modem cable is required to connect GESBC 9260 to the host computer Install Linux Development Tool Chain The ARM Linux Development Tool chain can be installed in any directory on the host system The following example uses cross compiler default directory usr local arm as the installing directory for the ARM Linux cross compiler 1 Login as root and untar the tool chain cd
4. Connector Pin Number Signal Name Pin Number Signal Name 2 jo BR Version 0 2 Page 12 of 23 22 Jun 09 GESBC 9260 User s Manual RTS gt CTS ABI NC NA The port 2 is the USART 1 of the AT91SAM9260 It is provided via a 3 pin header P2 Table 5 UART3 Port 2 Connector Pin Number Signal Name RS 485 The GESBC 9260 Single Board Computer provides one half duplex RS 485 port The RS 485 port is connected to USART3 with RTS signal for RS 485 driver direction control The RS 485 signal is provided via a 1x3 2 54mm spacing header J8 J6 enables the on board 120 ohm termination resistor Table 6 RS 485 Port J8 Pin Number Signal Name The RTS3 is connected to the RS 485 driver chip for data direction control The normal setting of RTS signal is normally low For RS 485 mode the RTS signal must set to normally high The user program must set the RTS mode before RS 485 port can be used 12C Bus The GESBC 9260 Single Board Computer provides one I2C bus interface via a 1x3 2 54mm spacing header J9 Table 7 J9 I2C bus Pin Number Signal Name Version 0 2 Page 13 of 23 22 Jun 09 GESBC 9260 User s Manual Ethernet The GESBC 9260 Single Board Computer is shipped with support for a complete Ethernet interface The AT91SAM9260 contains a MAC subsystem that is compliant with the ISO TEC 802 3 topology for a single shared medium with several stations The Media Access Controller MAC within the AT91SAM9260 supports 1 1
5. OVEIVIEW AP eh ae int ov Ce u be 21 Linux Development Tool CHAIN sit lios 21 Chapter 6 Troubleshooting Fund d d A rt A E A 23 Version 0 2 Page 2 of 23 22 Jun 09 GESBC 9260 User s Manual List of Tables Table LoSyste Conti curation sion A A AE 10 Table 2PU COMMCCIOL iienaa a s ea R es RIERA sacd dada setas beans 12 Table PL COME Td ia 12 Table 4 P2 UART3 COME As 13 E ses ache ou E acu epson A 6 EE ea 13 Tabl 6 IO IDC DUS zes kou bust tuku boot bak kdes dose ai 13 Table 7 JIG V O Expansion iia adi Aia dd o Anas dina ena dica sepsis 14 Tables J20 JTAG ECONO asias 16 Table 9 J1 Power Supply Connector sii ie 16 Table 9 NAND FLASH Storage Mascarada incendiada 17 Version 0 2 Page 3 of 23 22 Jun 09 GESBC 9260 User s Manual Chapter 1 Introducing the GESBC 9260 Single Board Computer GESBC 9260 Overview The GESBC 9260 is a low cost compact sized single board computer based on Atmel AT91SAM9260 processor With a large peripheral set targeted to a variety of applications the GESBC 9260 is well suited for industrial controls digital media servers audio jukeboxes thin clients set top boxes point of sale terminals biometric security systems and GPS devices Advanced Features The heart of the GESBC 9260 is the AT91SAM9260 which is the one in a series of ARM926EJ S based processors The AT91SAM9260 microcontroller features DSP Instruction Extensions ARM Jazelle Technology for Java Acceleration It has separate 8 Kb
6. PB8 DA NEO ji 14 k SUM Em 4 5 PB4 TXDO CY RS 232 Port O 6 E 8 977 Version 0 2 Page 14 of 23 22 Jun 09 GESBC 9260 User s Manual J0 APBY 30 E M 11 PBIO TXD3 IsLDS RS485 Pon 12 PBIL RXD3 SEDO RSABSPot B PBI2 TXDS isLDO 14 PBI3 RXDS ISIDI 15 PBI4 DRXD RS232Pon0 16 PBIS DIXD RS232Pon0 17 PBI6 TKO TaK 18 PB17 Tro TCIK4 J 19 PB18_ TDO mos 20 PBI9 RDO moss o 21 PB20_ RKO srbo o 22 PB21_ RF0 sD 23 PB22 DSRO ISLD2 RS 232Pori 24 PB23 DCDO ISID gt RS 232Pori 125 PB24 RTRO ISLD4 RS 232Pom1 26 PB25 RIO ISID5 BRS 232Pom1 27 PB26 RTCO ISID6 BRS 232Pom1_ 128 PB27 CTSO ISID7 RS 232Pom1_ 29 PB28_ RTS1 ISIPCK 30 PB29 ersi ISIVSYNC J o EMBED AA eee GND GND Oo L init A ET S SPIL NPCS2 SPILNPCST TIOB2 CFCEL TIOB3__ CFCE2 NCS4 CFCSO RTS3 NCSS CFCS1 TIOBO A25 CFRNW _ CTS3 Eim p E RS 485 NCS2 SPI NPCS1 GND GND 3 3V 3 3V For more detailed information on multiplexed peripherals please see AT91SAM9260 data sheet Version 0 2 Page 15 of 23 22 Jun 09 GESBC 9260 User s Manual RTC The GESBC 9260 uses the AT91SAM9260 on chip RTC with battery hook up to provide accurate time keeping The on board battery holder accepts CR1225 CR1220 c
7. The GESBC 9260 is shipped with 64MBytes of SDRAM FLASH The GESBC 9260 is shipped with 128MB NAND FLASH USB The GESBC 9260 is shipped with two USB host ports UART 1 The GESBC 9260 is shipped with a full RS 232 interface with modem control signals Version 0 2 Page 6 of 23 22 Jun 09 GESBC 9260 User s Manual UART 2 The GESBC 9260 is shipped with the 3 wire UART 2 interface DEBUG Port The GESBC 9260 is shipped with the 3 wire serial debug port Ethernet The GESBC 9260 is shipped with a complete physical and MAC subsystem that is compliant with the ISO TEC 802 3 topology for a single shared medium with several stations The AT91SAM9260 supports 1 10 100 Mbps transfer rates and interfaces to industry standard physical layer devices Version 0 2 Page 7 of 23 22 Jun 09 GESBC 9260 User s Manual Chapter 2 Getting Started This chapter describes the GESBC 9260 working environment and familiarizes the user with its components and functionality This chapter contains the following sections e Assembly and Connections o Describes how to assemble and connect components to the GESBC 9260 Single Board Computer e Operation o Describes how to operate the GESBC 9260 Single Board Computer Assembly and Connections In order to use the GESBC 9260 the user must first assemble and connect the peripherals to the GESBC 9260 as described in the following procedure 1 Place the GESBC 9260 on a static free surface 2 Make sure
8. 0 100 Mbps transfer rates and interfaces to industry standard physical layer devices The GESBC 9260 is shipped with the DM9161A 100Base X 10Base T Transceiver device which along with a RJ45 connector provides the physical layer interface USB Port The GESBC 9260 Single Board Computer is shipped with 2 USB host port on standard USB type A double deck connector The GESBC 9260 Single Board Computer is shipped with one USB device port J17 The USB device port signal assignment is listed in the following table Table 8 J17 USB Device Port Pin Number Signal Name ji USB connection GROUND GROUND SPI Bus On chip A D and GPIO The AT91SAM9260 contains very rich set of peripherals that are multiplex into 2 groups Peripheral A and Peripheral B with individually programmable pins The SPI bus A D and GPIO are provided together with other functions on the I O expansion port The I O expansion port is a 2x25 2 54mm spacing header The following table lists signals available on the I O expansion connector with their corresponding multiplexed functions and default usage on the GESBC 9260 Single Board Computer Table 9 J16 VO Expansion Pin VO Line Peripheral A Peripheral B Comments Function 1 PBO SPU MISO TIOA3 O PBI SPII_MOSI TIOB3 O 3 PE SPULSPCK TIOAM I E 4 PB3 SPILNPCSO TIOAS PB5 RXDO pp RS 232 Porth 7 PB6 TXDI TCIKI RS 232Pom2 PB7 RXDI TCKI2 gt RS 232Por2
9. 4 DO252000 to DOB3FFFF FS eee Warning bad CRC or NAND using default environment serial serial serial macb Starting autonegotiation For Help press F1 Connected 12 47 16 VT102 115200 8 None 1 lt File Edit View Properties Transfer Automation Window Help DAME or 2a Terminal Phonebook Call Log Lists Loading device mapper support en file systems fsck 1 4 WIP 14 Nov 2006 done Setting kernel variables done Mounting local filesystems done Setting up networking Configuring network interfaces info udhcpc vB 9 9 pre started debug Sending discover eth link up 100 Full debug Sending discover debug Sending discover info No lease forking to background done Starting portmap daemon INIT Entering runlevel 3 Starting system log daemon syslogd Starting kernel log daemon klogd Starting OpenBSD Secure Shell server sshd Restoring mixer settings failed Starting periodic command scheduler crond Debian GNU Linux 4 0 GESBC ttyS For Help press F1 Connected 12 51 04 T102 1115200 8 None 1 lt Please see Version 0 2 Page 9 of 23 22 Jun 09 GESBC 9260 User s Manual Chapter 4 Software Description for more details regarding the software functionality Configurations Jumpers are used to configure the GESBC 9260 to operate in different mode The following table lists all the settings for each jumper Table 1 System Con
10. GESBC 9260 User s Manual USB The GESBC 9260 Single Board Computer provides two USB host connections The AT91SAM9260 USB host controller is configured for two root hub ports and features an integrated transceiver for each port The AT91SAM9260 integrates two USB 2 0 Full Speed host ports These ports are fully compliant to the OHCI USB 2 0 Full Speed specification 12 Mbps The controller complies with the OHCI specification for USB Revision 1 1 The USB ports are brought out by a standard double deck USB type A connector The GESBC 9260 Single Board Computer provides one USB device port The USB Device Port UDP is compliant with the Universal Serial Bus USB V2 0 full speed device specification RS 232 Port 0 1 and 2 The GESBC 9260 Single Board Computer is shipped with two 3 wire RS 232 UART interface and one 9 wire RS 232 UART interface The port 0 is the debug USART port of the AT91SAM9260 The PO connector is the DB 9 connector on GESBC 9260 and 3 pin header on GESBC 9260B The signal designation is listed in the following tables Table 2 Debug UART Port P Connector on GESBC 9260 Pin Number Signal Name Pin Number Signal Name FO INE 1 a pe The serial port 1 is the USART 0 on the AT91SAM9260 processor It is provided via a 2x5 2 54mm spacing header P1 on GESBC 9260 It is provided via the DB 9 connector on GESBC 9260B The UART P1 provides full modem control and hardware handshake signals Table 4 UART Port P1
11. GLOMMA CIOL Embedded Single Board Computer GESBC 9260 GESBC 9260B User s Manual GESBC 9260 User s Manual Table of Contents Chapter 1 Introducing the GESBC 9260 Single Board Computer 4 GESBC 9260 Dyer vi Wes nissan ibi eee 4 e A A A A oo ooo Mia ental o 4 APOS AIO UA SR 6 SDRAM yo ode coon case ooo o o o 6 FEAS isaac idaho 6 USB SS ia a caia 6 A a o dd eo oie des 6 A lo 7 DEBUG Portu 7 Ethernet tn r a OE po ged Rigs she a o o o o 7 Chapter 2 62 ES oo 8 Assembly and Connect iodo 8 DO O 8 COMMMBULAL OTIS A ia 10 Chapter 3 GESBC 9260 Function Blocks iii dd 11 ATITS AMO 2D ed da Ee a o hudba Aba o oba 11 SDRAM sucia id 11 A P L O O ON 11 USD A iia 12 RS O A ia 12 S o R O a ea aa aa aeaa aiat ie a SSE E eaa 13 DPO B S capi tad 13 Ethernet uta in sealed de A 14 SPI Bus On chip A D and GPIO sitiada iron atadas 14 RT ii 16 EEG acess om oo p tz wali gos aa ae os Ko ET E 16 Power REQUIEM Bie ae a A ode Sea es 16 Chapter 4 Software Description iss cisicscajsccissegusseratsiacesescianssdegedarancdaaanencsas oaceededesageanteaes 17 OMEN Wa 8 8 An oo mailbag ata agree ok lee AD sali AG no a c 17 Data Storage Om GESBC 9260 us ais ia 17 GESBC 9260 inex Code 3343 ie led oa aol head 17 A O 17 U boot Booting Linux siii ic iaa a T E E a Ei ss 17 Loading Linux Kernel and root File SysteM ooooccnnnccnoncnoonnnonononnnnnnncnnnccnnnnnncnnn ccoo ccoo 18 Chapters Development Lol v das cua c de tk TE E R A 21
12. all of the jumpers are in the factory default position The unit is shipped in a factory default configuration If the user is uncertain that the GESBC 9260 has the jumpers in the factory default configuration please see the next section regarding board configuration 3 Connect 5V regulated power supply to J1 on the board 4 Connect null modem serial cable between GESBC 9260 debug port and PC terminal serial port 5 Launch a terminal emulator such as HyperTerminal or minicom on the PC configured to connect to the serial port of the GESBC 9260 Configure the serial port with the following parameters 115200 bits per second 8 data bits no parity 1 stop bit no flow control 6 Connect the board to a local area network optional Operation A few seconds after applying power to the GESBC 9260 debug information will be displayed on the terminal program The following figures show what this should look like Version 0 2 Page 8 of 23 22 Jun 09 GESBC 9260 User s Manual STE 101 xi File Edit View Properties Transfer Automation Window Help D BK ESD P 4 Terminal Phonebook Call Log Lists RomBOOT gt U Boot 1 3 3 Jul 19 2008 15 50 33 DRAM 64 MB NAND 128 MiB DataFlash AT45DB642 Nb pages 2 Page Size 1056 Size 8650752 bytes Logical address OxD0000000 A 0 DO000A00 to DAAA41FF RO Bootstrap 1 D0004200 to DOBB83FF Environment 2 DO008400 to DOO41FFF RO U Boot 3 D0042000 to DO251FFF Kernel
13. figuration Jumper Description J7 Boot mode connect pin 1 and 2 external memory boot on NCSO open pin 1 and 2 internal ROM boot NAND FLASH boot SI PA31 port input for boot strap code boot mode open normal ROM boot seguence close ROM debug mode BP1 System reset switch header Version 0 2 Page 10 of 23 22 Jun 09 GESBC 9260 User s Manual Chapter 3 GESBC 9260 Function Blocks AT91SAM9260 The GESBC 9260 Single Board Computer uses the Atmel AT91SAM9260 as the core processor on this development board The top level features of AT91SAM9260 processor are the following e ARM926EJ S RISC Core Processor e 200 MHz 200 MIPS Performance e 8Kbyte Instruction Cache e 8 Kbyte Data Cache e Linux and Windows CE enabled MMU e 100 MHz System Bus e 32 bit SDRAM Interface e 32 bit SRAM FLASH ROM Interface e Serial EEPROM Interface e 10 100 Mbps Ethernet MAC e 6UART e Two port USB Host e 4channel 10 bit ADC e 2 SPI Port e Serial Audio Interface e JTAG Interface More detailed information regarding the AT91SAM9260 processor can be found at www atmel com SDRAM The AT91SAM9260 features a unified memory address model where all memory devices are accessed over a common address and data bus The GESBC 9260 up 128MB SDRAM FLASH The GESBC 9260 is shipped with 128 Mbytes of NAND FLASH memory The GESBC 9260 can be also ordered with optional 256MB 1GB NAND FLASH Version 0 2 Page 11 of 23 22 Jun 09
14. l chain directory Compile Kernel Once Linux kernel has been configured it can be compiled using following command make ARCH arm CROSS COMPILE arm unknown linux gnu Ulmage The Linux kernel should compile without error and the image file will be created Version 0 2 Page 22 of 23 22 Jun 09 GESBC 9260 User s Manual Chapter 6 Troubleshooting This chapter provides Troubleshooting information Search the entries in the Problem column in order to find the item that best describes your situation Then perform the corrective action in the same row If the problem persists contact Glomation Version 0 2 Page 23 of 23 22 Jun 09
15. oin cell batteries JTAG The GESBC 9260 Single Board Computer is shipped with a 10 pin connector that provides JTAG debug signals for the CPU The JTAG provides the user with the ability to debug system level programs The signal designation is listed in the following table Table 10 J20 JTAG Connector Pin Number Signal Name Pin Number Signal Name 6 prek sg TO Power Requirement The GESBC 9260 Single Board Computer requires regulated 5V DC The power supply should have minimum 350mA capacity Table 11 J1 Power Supply Comnector Pin Number Signal Name 1 Version 0 2 Page 16 of 23 22 Jun 09 GESBC 9260 User s Manual Chapter 4 Software Description Overview This chapter provides information regarding the software that is shipped with the GESBC 9260 Board The software included with the board is U boot boot loader Linux kernel 2 6 25 and Debian distribution style compact root file system The applications included provide access to all hardware functions on the GESBC 9260 board Data Storage on GESBC 9260 The default configuration of the GESBC 9260 Single Board Computer uses on board NAND FLASH for all data storage reguirements including boot strap code boot loader Linux kernel and Linux file system The following table is the storage map on the NAND FLASH Table 12 NAND FLASH Storage Map Start Address Size Usage 0x00000000 0x20000 0x00020000 0x40000 0x00060000 0x40000 U boot primary environmen
16. ot gt The boot cmd setting of the U boot reads the Linux kernel from NAND FLASH at address 0x100000 to SDRAM at address 0x22000000 and start executing the kernel code at the same memory address The NAND FLASH from 0x400000 and up is used for Linux root file system The U boot passes the MTD device partition setting to the Linux kernel via the bootargs environment variable Loading Linux Kernel and root File System The U boot boot loader provides many ways to load Linux kernel and file system into FLASH memory The loading by Ethernet network is shown here User can consult U boot manual for other methods of loading data After power on the GESBC 9260 board stop the U boot auto execution by press any key The following message should be shown on the terminal console on the host PC connected to the GESBC 9260 board Version 0 2 Page 18 of 23 22 Jun 09 GESBC 9260 User s Manual Boot 1 3 3 Jul 19 2008 15 50 33 DRAM 64 MB NAND 128 MiB taFlash AT45DB642 Nb pages 8192 Page Size 1056 Size 8650752 bytes Logical address 0xD0000000 0 D0000000 to DOOO4IFF 1 Bootstrap D0004200 to D00083FF Environment D0008400 to DOO4IFFF I U Boot D0042000 to DO251FFF Kernel D0252000 to D083FFFF FS serial serial serial macb0 macb0 Starting autonegotiation macb0 Autonegotiation timed out status 0x7849 macb0 link up 100Mbps full duplex lpa 0x4del it any key to stop autoboot 0 Boot gt
17. t storage range 0x000A0000 0x40000 U boot secondary environment storage range 0x00100000 0x300000 0x00400000 Root file system GESBC 9260 Linux Code The GESBC 9260 is shipped with Linux 2 6 27 kernel pre installed This software is programmed into the system FLASH located on the board prior to shipment The Linux kernel is configured with all the device drivers included for the GESBC 9260 board U boot U boot provides a simple interface for loading operating systems and applications onto the GESBC 9260 board U Boot uses a serial console for its input and output The default serial port setting is 115200 8 N 1 It also supports the built in Ethernet port and general flash programming The board is shipped with U boot pre installed Please refer to U boot user s manual regarding detailed information of U boot U boot Booting Linux The following shows the default U boot setup for booting Linux Version 0 2 Page 17 of 23 22 Jun 09 GESBC 9260 User s Manual U Boot gt printenv bootargs console ttyS0 115200 root dev mtdblock2 rw rootfsi jffs2 mtdparts atmel nand 1M bootloader 3M kernel root1 bootcmd nand read jffs2 0x22000000 0x100000 0x200000 bootm bootdelay 1 baudrate 115200 ethaddr 00 0c 20 02 0a 5b ipaddr 192 168 0 200 serverip 192 168 0 102 netmask 255 255 255 0 tdin serial tdout serial tderr serial thact macb0 Environment size 353 131067 bytes U Bo
18. yte instruction and data caches with write buffer The ARM926EJ S on the AT91SAM9260 functions with a maximum operating clock rate of 200MHz and a power usage between 20mW and 250mW dependent upon clock speed The ARM core operates from a 1 8V supply while the I O operates at 3 3V The low power consumption makes it an idea platform for battery operated applications The list below summarizes the features of the GESBC 9260 200MHz Processor Core ARM926EJ S with MMU 64 128 MB SDRAM 128MB 1GB NAND FLASH 1 10 100 Mbps Ethernet port 4 channel 10 bit Analog to Digital Converter ADC 3 RS 232 Universal Asynchronous Receiver Transmitters UARTs 1 RS 485 Port 2 USB Host Port 1 USB Device Port Real Time Clock with battery backup Hardware Debug Interface SD MMC Socket GPIO Ports with high current drive up to 16mA 1 I2C Port 1 SPI Port 32 bit Memory Expansion Bus Figure 1 below shows a picture of the GESBC 9260 Single Board Computer Version 0 2 Page 4 of 23 22 Jun 09 GESBC 9260 User s Manual DM O i LL V L A LE A 4 J bi Li bil LLULLU JLi Ml bets ts bits ti be Li Lij Figure 1 GESBC 9260 Single Board Computer Version 0 2 Page 5 of 23 22 Jun 09 GESBC 9260 User s Manual 2 Sl 2 Z fo aeia me 22T Mica 3775 mil AT91SAM9260 The GESBC 9260 is shipped with the Atmel AT91SAM9260 processor For more information regarding the AT91SAM9260 processor please see the AT91SAM9260 datasheet SDRAM
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