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    Kit Overview


    The Embest's AT91SAM3U-SKAT91SAM3U-SK is the low cost development kit for ATSAM3UATSAM3U (96MHz, the ARM Cortex-M3 processor built-in High Speed USB controller), including the ATSAM3U evaluation board(AT3U) and Emlink for ARM(EAH1) JTAG adapter, so the developers can easy start to learn and test all the relevant applications on it, or evaluate your new project design through this entire system.


    Atmel AT91SAM3U-SKAT91SAM3U-SK Starter Kit contains all the necessary hardware and software and allows you to design, develop, integrate and test your applications:

    • Atmel ATSAM3U ARM Cortex-M3 Board
    • Keil MDK-ARM Development Kit, 32K evaluation edition
    • Emlink for ARM - a high speed JTAG Emulator for ARM Cortex-M3 processors
    • Plenty of example programs, all in source code


    The Atmel® ATSAM3UATSAM3U is the industry’s first ARM® Cortex™ M3 Flash microcontroller with on-chip high speed USB Device-and-Transceiver, SDIO/SDCard/MMC and SPI interfaces. This connectivity, together with the SAM3U’s 96 MHz/1.25 DMIPS/MHz operating frequency.


    Ordering Information:

    AT91SAM3U-SKAT91SAM3U-SKOne AT91SAM3U ARM Cortex-M3 Board+One Emlink for ARM

    ATMEL SAM3U ARM Cortex-M3 Board Only


    Key Applications: Industrial high speed gateways, medical, data processing and consumer applications

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    Development Tools


    Software Development Tools:


    Tool TypeSupplierSupported FamilyMPNDescription

    ARM Cortex-M

    Atmel Studio 6 IDE

    Atmel Studio 6 Integrated Development Environment (IDE) is the integrated development environment (IDE) for developing and debugging Atmel ARM® Cortex™-M and Atmel AVR® microcontroller (MCU) based applications. The Atmel Studio 6 IDE gives you a seamless and easy-to-use environment to write, build and debug your applications written in C/C++ or assembly code. Learn More


    The MDK-ARM (Microcontroller Development Kit) is the complete software development environment for ARM7, ARM9, Cortex-M, and Cortex-R4 processor-based devices. Learn More

    IDEEmbestARM Cortex M0 & M3CoIDE

    CooCox offer freely available powerful software development tool for ARM Cortex-M3 & Cortex-M0 based microcontrollers. Coocox Tools organizes and provides the knowledge required by developers. Learn More

    RTOSEmbestARM Cortex M0 & M3CoOS

    CoOS is a free and open RTOS from CooCox, designed specifically for Cortex-M processor, supports preemptive priority and round-robin, Semaphore, Mutex, Flag, Mailbox and Queue for communication & synchronization, highly scalable, minimum system kernel is only 974Bytes, supports interrupt while task switching, supports stack overflow detection, supports the platforms of ICCARM, ARMCC, GCC. Learn More

    RTOSMicriumARM7 / AMR9Micrium uc/OSIII

    μC/OS-III is Micrium’s newest RTOS, designed for developers who need to save time on their current and next embedded sytem projects. Learn More


    The Keil RTX is a royalty-free, deterministic Real-Time Operating System designed for microcontrollers based on ARM7™TDMI, ARM9™, and Cortex™-M CPU cores. Learn More

    RTOSSeggerALL ARMembOS

    SEGGER embOS (Real Time Operating System) follows strict, yet efficient coding and documentation standards. embOS is a priority-controlled real time operating system, designed to be used as foundation for the development of embedded real-time applications. Learn More


    Hardware Development Tools:


    Tool TypeSupplierSupported Family MPNDescription
    Debuggers, Emulators & JTAG ToolsAtmelARMAT91SAM-ICEAT91SAM-ICEUSB JTAG In-Circuit Emulator for SAM3, SAM7 and SAM9 ARM-based microcontrollers
    Debuggers, Emulators & JTAG ToolsARMALL ARMDSTRM-KT-0181ADSTRM-KT-0181ADSTREAM Debug and Trace Unit
    Debuggers, Emulators & JTAG ToolsARMALL ARMULINK2ULINK2USB Debugger
    Debuggers, Emulators & JTAG ToolsARMALL ARMULINKProULINKProHigh-Speed Debug and Trace Unit
    Debuggers, Emulators & JTAG ToolsSeggerARM / CORTEX-M/A/RJ-LinkJ-LinkUSB JTAG Emulator
    Debuggers, Emulators & JTAG ToolsSeggerALL ARM Cortex-MJ-Trace for Cortex-MJ-Trace for Cortex-MUSB JTAG Emulator
    Debuggers, Emulators & JTAG ToolsSeggerALL ARMJ-Trace for ARMJ-Trace for ARMUSB JTAG Emulator
    FlasherSeggerALL ARMFlasher ARMFlasher ARMARM & Cortex M Flash Programmer


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    Technical Documents

    Learning Center
    User ManualEmbest: User Manual for AT91SAM3U ARM-CM3 Board
    DatasheetEmbest: Datasheet for AT91ARM M3 Cortex-based Processor
    Application NoteAtmel: Application Note for Analog-to-Digital Converter in the SAM3S4
    Application NoteAtmel: Application Note for AT91SAM Update for EWARM
    Application NoteAtmel: Application Note for Interfacing a 4x4 Keyboard to an AT91 Microcontroller


    Design Elements
    SchematicsEmbest: Schematics File for EM-AT91SAM3U Eval Board AT91SAM3U Starter Kit
    LayoutEmbest: Layout File for EM-AT91SAM3U Eval Board
    Application LibraryAtmel: Software Code for AT91SAM Update for EWARM


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    Kit Features



    • Atmel ATSAM3U ARM Cortex-M3 Board:
      • One ATSAM3U Board plus one 2.8" TFT LCD
      • ATSAM3U4EATSAM3U4E LQFP 144 Pins, ARM Cortex-M3 based, 96MHz
      • XTAL Frequency: 12 MHz
      • 256KB flash memory and 48KB SRAM
      • Two RS232 Interfaces
      • One High-speed USB Device Interface
      • One 2.8" TFT LCD interface
      • One MicroSD Card interface
      • One 20pins JTAG Interface,
      • Four Push Buttons (Reset, Wake Up, Tampering, User)
      • Two BNC Interfaces
      • One RTC Unit with Battery
      • One Analog Input (connected to potentiometer),
      • One Analog Output (connected to speaker by default)
      • Supply Voltage: 5 Volts DC (provided by power adapter)
      • Board Size: 135mm x 90mm (5.3" x 3.5")


    • Keil MDK-ARM Development Kit
      • µVision IDE, debugger and simulation environment
      • ARM industry-leading C/C++ compiler from ARM
      • MicroLib highly optimized run-time library
      • Real-Time Trace for Cortex-M3 processor based devices
      • Keil RTX - deterministic Real-Time Operating System


    • Emlink for ARM
      • Supports debugging with Realview MDK and EWARM
      • Supports ARMCortex-M3 processors: STM32, LPC17XX, AT91SAM3UE, etc.
      • JTAG 20 pins connects to target
      • Supports hardware and software breakpoints
      • Supports USB port connecting to host PC
      • Downloads and debugs speed up to 250KBytes/s (about 1.5Mbps)
      • Integrates seamlessly into IAR Embedded Workbench and Keil RealView MDK


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    Kit Contents


    The Embest AT91SAM3U-SKAT91SAM3U-SK Starter Kit is supplied with the below contents:

    • Atmel ATSAM3U ARMCortex-M3 Board
      • One AT91SAM3U ARM Cortex-M3 Board
      • One RS-232 Serial Cable
      • One USB Cable
      • One 2.4" TFT LCD Panel (240 x 320)
    • One Emlink for ARM



    • CDROM of Atmel AT91SAM3U-SKAT91SAM3U-SK Starter Kit (free)
      • Documents - user manual, data sheets and the other development documents.
      • Images - image files for this product.
      • Software - software programs for this product.
      • Tools - the utilities tools and software

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