Atmel:  ATSAM3U-EK Evaluation Kit

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Kit Overview

The Atmel ATSAM3U-EKATSAM3U-EK  Evaluation kit lets designers quickly evaluate and develop code for applications running on Atmel SAM3U microcontrollers.The Atmel® SAM3U 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, makes the SAM3U the unique Cortex M3 device suited to applications with intensive communications requirements, such high speed gateways in industrial, medical, data processing and consumer applications.


For rapid evaluation and code development, industry-leading third parties provide a full range of dev tools, RTOS, middleware and support services to reduce time-to-market to a minimum. The SAM3U is the first Cortex M3 microcontroller with high-speed USB and an integrated transceiver for fast up/downloading of data, robust EMI tolerance, and plug-and-play high-speed serial interconnectivity.


The SAM3U is touch-ready, offering native support for Atmel QTouch® technology for easy implementation of buttons, sliders and wheels in your application. It Features a 96 MHz maximum operating frequency and a high data-bandwidth architecture based on a 5-layer bus matrix with 22 DMA channels and distributed memory. Dual-Bank Flash Provides safe in-application programming (IAP) including the boot program. Memory Protection Unit Improves code protection and secures multi-application/task execution.


Key Applications: Home Entertainment, Industrial Automation and Mobile Electronics.

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Development Tools


Software Development Tools:


Tool TypeSupplierSupported FamilyMPNDescription


EmbestARM Cortex™-MCoIDECooCox 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™-MCoOSCoOS 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

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 ARM Development Studio 5 (DS-5) tool enable developers to get the best from their ARM technology-based systems. Whether implementing an ARM processor-based SoC or writing software for an Application Specific Standard Product (ASSP), ARM tools enable you to deliver the best solution with the highest performance and lowest power. 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

RTOSMicriumARM7 / AMR9 / AVR / AVR32Micrium 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


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


EmbestARM Cortex™-MColinkExColinkExARM Cortex-M MCU JTAG Hardware Debugging Probe which supports in CooCox software and Keil Realview MDK
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 GuideAtmel: User Guide for ATSAM3U-EK Eveluation Kit
User GuideAtmel: Getting Started with ATSAM3U-EK Evaluation Kit
Product BriefAtmel: Product Brief for AT91SAM3U MCU Series
Revision NoteAtmel: Demo Release Note for ATSAM3U-EK Evaluation Kit
Revision NoteAtmel: Demo Release Note for SAM3U-EK  Evaluation Kit


Design Elements
Application LibraryAtmel: Design & Manufacturing Files for ATSAM3U-EK Evaluation Kit
Application LibraryAtmel: Software for  SAM3U-EK Dev kit
Application LibraryAtmel: Software Package for AT91SAM3U devices
Application LibraryAtmel: Application Library for all AT91SAM devices for IAR EWARM v5.3x
Application LibraryAtmel: Software Package for all AT91SAM devices for Realview MDK v3.7
Application LibraryAtmel: Software for SAM-BA package uses  Windows Vista - v1.13
Application Library

Atmel: Software for SAM-BA package uses Linux - v1.13

Application Library

Atmel: Software Package with  AT91LIB version 1.6 for  SAM3U-EK


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Kit Features



  • SAM3U4ESAM3U4E QFP chip with optional socket footprint
  • 12 MHz crystal
  • 32.768 KHz crystal
  • Optional SMB connector, for external system clock input
  • NAND Flash
  • Backup Battery
  • 2.8 inch TFT color LCD display with touch-panel and backlight
  • UART port with level shifter IC
  • USART port with level shifter IC
  • Audio codec with input and output jacks: stereo headphone out, stereo line in, mono microphone in
  • SD/MMC interface
  • 3D accelerometer sensor
  • Temperature sensor
  • JTAG port
  • On-board power regulation with shutdown control (by the SAM3 chip)
  • BNC connectors for ADC input
  • User potentiometer connected to the ADC input
  • ZigBee® connector


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Kit Contents


The Atmel ATSAM3U-EKATSAM3U-EK evaluation kit is supplied with below contents:

  • SAM3U-EK board
  • Power supply
  • Universal input AC/DC power supply with US, Europe and UK plug adapters
  • One 3V Lithium Battery type CR1225
  • One USB cable
  • One serial RS232 cable


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