Atmel AVR32930 Manuel utilisateur

Atmel AVR32930: UC3-A3 Xplained Getting

Started Guide

Features

• Easy to reprogram with just a USB cable and a preprogrammed boot loader

• Easy to debug code with JTAG-based debuggers and emulators

1 Introduction

The Atmel®UC3-A3 Xplained evaluation kit is a hardware platform for evaluating

the Atmel AT32UC3A3256 microcontroller.

The kit offers a range of features that enable Atmel AVR®UC3 users to get started

using UC3 peripherals right away and understand how to integrate the UC3 device

in their own design. This getting started guide will take you through all the basic

steps needed to start using the UC3-A3 Xplained evaluation kit.

Figure 1-1. UC3-A3 Xplained evaluation kit.

32-bit Atmel

Microcontrollers

Application Note

Rev. 32163A-AVR-03/11

2 AVR32930 32163A-AVR-03/11

2 What is needed to get started?

To be able to run the preprogrammed code, you need the Atmel UC3-A3 Xplained

evaluation kit and a USB cable (Standard-A to Mini-B or Mini-AB) to connect the

board to a PC.

When connecting the UC3-A3 Xplained board to a PC, the operating system will

request a driver file for installing the serial communication driver. This driver file is

available in the zip file associated with this document. The driver file supports both

the 32- and the 64-bit versions of Windows® XP and Windows7. Driver installs are not

necessary on Linux®operating systems.

To modify the example code or to write new code and compile it, you need a

toolchain for the Atmel AVR microcontrollers and an integrated development

environment (IDE) to edit and debug the code. Atmel provides both Atmel AVR

Studio®4 and Atmel AVR32 GNU Toolchain. Other IDEs and toolchains are also

available, such as IAR Embedded Workbench®.

If you also want to debug the code at runtime, debuggers like the Atmel AVR

JTAGICE mkII or the Atmel AVR ONE! are needed. More information about these

tools is available from the Atmel website.

2.1 Documentation for the UC3-A3 Xplained

The “AVR32918: UC3-A3 Xplained Hardware User’s Guide” package includes all in-

depth information about the kit, such as schematics, BOM, assembly drawings, 3D

plots, and more. The package is available from the Atmel website.

www.atmel.com/xplained

2.2 Atmel AVR Software Framework (ASF)

The Atmel AVR Software Framework provides software drivers and libraries to build

applications for Atmel AVR devices. It has been designed to help develop and merge

the different components of a software design. It can easily integrate into an operating

system (OS) or run as a standalone product.

The ASF (version 1.7.0) that integrates with Atmel AVR32 Studio can be found here:

http://atmel.com/dyn/products/tools_card.asp?tool_id=4192

However, the above framework does not include the latest examples for this kit. The

new AVR Software Framework (version 2+) should be used to get the latest software

updates, and it can be found here:

http://asf.atmel.no/readme.html

2.3 Integrated development environment for Atmel AVR 32-bit microcontrollers

2.3.1 AVR32 Studio

The AVR32 Studio is a free integrated development environment (IDE) for developing

applications for the Atmel AVR 32-bit microcontrollers. It offers an advanced editor as

well as programming and debugging support.

Atmel AVR32 Studio

http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4116

AVR32930

32163A-AVR-03/11

To learn how to use this tool, please read the document:

AVR32015: AVR32 Studio getting started

http://atmel.com/dyn/resources/prod_documents/doc32086.pdf

2.3.2 IAR Embedded Workbench for Atmel AVR32

IAR Embedded Workbench is an integrated development environment with project

management tools and editor.

IAR Embedded Workbench for Atmel AVR32

http://www.iar.com/website1/1.0.1.0/124/1/

2.4 FLIP (BatchISP)

BatchISP is a command line tool for programming the flash memory and EEPROM of

the board controller, and is part of the FLIP installation. It can be used to

communicate with the preprogrammed boot loader on the board controller.

FLIP (FLexible In-system Programmer) for programming:

http://atmel.com/dyn/products/tools_card.asp?tool_id=3886

2.5 Toolchain

In order to build an application from the source code, a toolchain, which includes the

assembler, compiler, linker, and other required tools, is needed. The code for this kit

is compatible with the AVR32 GNU Toolchain and the IAR™ AVR Toolchain.

2.5.1 Atmel AVR32 GNU Toolchain

The AVR32 GNU Toolchain is a free toolchain that can be downloaded from the

Atmel website. It includes all the necessary tools, such as C/C++ compiler, assembler

and linker, for AVR application development. The toolchain is included in the Atmel

AVR32 Studio installation, but it is also available as a separate installation. The

toolchain is also available for Linux. For more information about the supported

distributions, please see the release notes on the Atmel website.

AVR32 GNU toolchain (free C/C++ compiler for AVR 8- and 32-bit MCUs)

http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4118

2.5.2 IAR AVR32 Toolchain

The IAR AVR32 toolchain is a commercial toolchain from IAR that includes all the

necessary tools, such as C/C++ compiler, assembler, and linker, for AVR application

development. A 30-day evaluation version as well as a 32K (code size limited) kick-

start version are available from the IAR website.

IAR Embedded Workbench for Atmel AVR32

http://www.iar.com/website1/1.0.1.0/124/1/

2.6 Programmers and debuggers

Programmers and debuggers are needed when either the application is programmed

without using the boot loader, or when debugging support is needed. Several different

tools are available that can be used directly with the Xplained kit. The most common

tools are described in the following sections.

4 AVR32930 32163A-AVR-03/11

2.6.1 Atmel AVR Dragon

AVR Dragon™ is a low-cost debug and programming tool that can be used for code

development with the UC3-A3 Xplained kit.

Atmel AVR Dragon (on-chip programming and debugging tool)

http://atmel.com/dyn/products/tools_card.asp?tool_id=3891

2.6.2 Atmel AVR JTAGICE mkII

AVR JTAGICE mkII is a mid-range debug and programming tool that can be used for

code development with the UC3-A3 Xplained kit.

Atmel AVR JTAGICE mkII (on-chip programming and debugging tool)

http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3353

2.6.3 Atmel AVR ONE!

AVR ONE! is a high-end debug and programming tool that can be used for code

development with the UC3-A3 Xplained kit.

Atmel AVR ONE! (on-chip programming and debugging tool)

http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4279

AVR32930

32163A-AVR-03/11

3 Board overview

Figure 3-1 shows the features on the UC3- A3 Xplained board. For more information

on the Atmel UC3-A3 Xplained board, please see the Atmel application note,

AVR32918: UC3-A3 Xplained Hardware User’s Guide.

Figure 3-1. Overview of the UC3-A3 Xplained board.

6 AVR32930 32163A-AVR-03/11

4 Connecting the board

Connect a USB cable (Standard-A to Mini-B or Mini-AB) between the board and a PC

or a USB power supply to power it up. That is all that is needed. When power is

applied, the Power/Status LED will light up green.

WARNING Do not power the board without having the jumper or an ammeter

mounted on the power measurement header. Otherwise, the device

may be damaged. The power measurement header is located next to

the USB connector, as shown in Figure 3-1.

4.1 Connecting the Atmel AVR Dragon

A 10-pin header cable is needed to connect the AVR Dragon tool to the Atmel UC3-

A3 Xplained board. Connect the cable between the JTAG connector on the AVR

Dragon kit and the UC3-A3 Xplained JTAG connector. Take a look at Figure 4-1 to

see how the connection should be made.

Figure 4-1. Connecting the AVR Dragon tool to the UC3-A3 Xplained board.

4.2 Connecting the Atmel AVR JTAGICE mkII

The grey connector on the AVR JTAGICE mkII probe has to be used when

connecting to the UC3-A3 Xplained board. See Figure 4-2 for reference on how to

make the connection. The notch of the grey connector must be placed into the cut-out

of the board.

AVR32930

32163A-AVR-03/11

Figure 4-2. Connecting the Atmel AVR JTAGICE mkII to the UC3-A3 Xplained board.

4.3 Connecting the Atmel AVR ONE!

The AVR ONE! JTAG connector can be connected to the UC3-A3 Xplained kit with a

standoff adapter, as shown in Figure 4-3.

Figure 4-3. Connecting the AVR ONE! to the UC3-A3 Xplained board.

8 AVR32930 32163A-AVR-03/11

5 Programming the kit

5.1 Programming via the boot loader

The boot loader is evoked by pushing the physical push button (SW0) during power-

up; that is, push the button, and then connect a USB cable to the kit. Programming

can be performed by using the BatchISP command line tool, which is part of the FLIP

installation. BatchISP can also run under Atmel AVR32 Studio, which has a GUI

interface.

Once the boot loader is active, it will appear as a USB DFU class device, and

Windows will ask for a driver. The driver can be found under the FLIP installation

directory.

Figure 5-1. The AVR32 Studio AVR Targets menu.

To program a new firmware, right-click on the UC3A3 DFU target in the AVR Targets

section of AVR32 Studio (see Figure 5-1), and then select “Program…” from the

menu (see Figure 5-2).

Figure 5-2. The DFU boot loader menu.

AVR32930

32163A-AVR-03/11

The following window will appear on the screen:

Figure 5-3. The DFU boot loader file select and programming options.

Browse and select the .hex file, set up the options as shown here, and click OK. A

small progress bar will appear in the lower right corner to indicate that programming is

ongoing. When the progress bar stops and disappears, the programming is done, and

the application will start automatically.

5.2 Restoring the boot loader

If the boot loader has been overwritten or erased, for example by performing a chip

erase command, the boot loader can be reprogrammed by using one of the

programmer tools described in Section 2.6, Programmers and debuggers.

5.2.1 Reprogramming the boot loader via Atmel AVR32 Studio

To reprogram the boot loader, right-click on the target to use in the AVR32 Studio

AVR Targets window, as shown in Figure 5-4, and select “Program Bootloader” from

the context menu.

10 AVR32930 32163A-AVR-03/11

Figure 5-4. The AVR32 Studio AVR Targets menu.

Select the boot loader version to program, as shown in Figure 5-5. Please see the

document, AVR32784: AVR32 UC3 USB DFU Bootloader, for more information about

the available versions and possible settings for the boot loader.

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