Atmel EVK1105 Manuel utilisateur

AVR32913: EVK1105 Getting Started Guide

Features

• Powering up the board

• Preparing the board for audio playback

• Playing music

1 Introduction

The EVK1105 is a reference design and development system for the AVR32

AT32UC3A0512 microcontroller from Atmel Corporation. The kit is equipped with a

rich set of memories and peripherals that make the EVK1105 to a perfect audio

platform. This guide shows the user how to get quickly started with this kit.

Figure 1-1 EVK1105 board

32-bit

Microcontrollers

EVK1105 Getting

Started Guide

Rev. 32113-AVR32-07/08

2 AVR32913 32113-AVR32-07/08

2 Powering up the board

The EVK1105 offers three interfaces to power the board, from one of the two USB

interfaces or from an external source connected to the header J1. The board can be

powered from 3 different sources, external power supply, “USB VCP” and “USB

USER” connector. If two power sources are applied at the same time the following

priorities are used to select the current valid power source:

1. External power supply (header J1)

2. USB VCP

3. USB USER

That means that if an external power supply is connected to the board it has the

highest priority and will therefore serve as current power supply. Other power

supplies that are connected to the board at the same time will be ignored.

The input range on the external power supply header is from 3.3V to 5V. In order to

be able to supply external USB devices that are connected to the board the minimal

power supply specification should be 5V, 1A. This ensures that the board will work

properly if a USB device is connected that needs the maximum allowed 500mA as

specified in the USB specification. It is not possible to draw that amount of current

from the host through a normal USB cable but there are cables available that can be

connected to two hosts (such a cable is not a kit content).

In order to play music from a mass-storage device it is enough to power the board

from the USB VCP connector. Use the “Mini-B plug to std-A plug 1.5m USB2.0” cable

that is included in the kit and connect it between the host and the board USB VCP

connector.

Figure 2-1 Possible power input interfaces on the EVK1105

AVR32913

32113-AVR32-07/08

More information about the different power inputs is available in the hardware user’s

guide.

When the board is powered the green LED, marked with “PWR”, will light up and the

default board firmware will start to run.

3 Preparing the board for audio playback

In order to play some music a USB mass-storage device must be connected to the

“USB USER” connector by using the “Mini-A plug to std-A receptacle” adaptor cable.

The adaptor cable is a kit content.

The default audio output should be configured to use the on board codec and thus the

jumpers on J6 should be set as indicated in the figure if not already set up like this.

Figure 3-1 Jumper settings on J6 for codec output to headphones

Connect a headphone or speaker to the jack in order to listen to the music.

4 Browsing the disk and playing music

After a mass-storage device has been connected to the USB-USER port the player

enters the disk browsing view. To control the application the touch sensors can be

used that are marked in the Figure 4-1.

4 AVR32913 32113-AVR32-07/08

Figure 4-1 Touch sensors for controlling the audio application

4.1 Disk browsing view

In this view it is possible to browse the storage media but only MP3 files and

directories will be shown. Use the touch sensors to browse the storage media for the

music file or playlist you want to play.

UP: Browse the file list up.

DOWN: Browse the file list down

LEFT: Enter the parent directory. If the user is in the root directory of the current

selected storage media a touch of this button will result in a menu which lets the

user select a storage media.

RIGHT: Enter a subdirectory or play the currently selected file or playlist.

CENTER: Play the currently selected file or playlist.

By playing a file or a playlist the audio player will change its view from the disk view to

the play view.

4.2 Play view

Following functionality have the touch sensors in the play view.

UP: Increase the volume.

DOWN: Decrease the volume.

LEFT: Play previous song in playlist or on disk.

RIGHT: Play the next song in playlist or on disk.

CENTER: If pressed short ( < 2s) pause the current song or play it again if we are

in the pause state. If pressed long ( > 2s) enter disk browsing view.

AVR32913

32113-AVR32-07/08

5 References and further information

EVK1105 hardware reference: This is included in the AVR32 Studio and on the

avrfreaks wiki page (http://www.avrfreaks.net/wiki).

6 AVR32913 32113-AVR32-07/08

6 EVALUATION BOARD/KIT IMPORTANT NOTICE

This evaluation board/kit is intended for use for FURTHER ENGINEERING,

DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY. It is

not a finished product and may not (yet) comply with some or any technical or legal

requirements that are applicable to finished products, including, without limitation,

directives regarding electromagnetic compatibility, recycling (WEEE), FCC, CE or UL

(except as may be otherwise noted on the board/kit). Atmel supplied this board/kit

“AS IS,” without any warranties, with all faults, at the buyer’s and further users’ sole

risk. The user assumes all responsibility and liability for proper and safe handling of

the goods. Further, the user indemnifies Atmel from all claims arising from the

handling or use of the goods. Due to the open construction of the product, it is the

user’s responsibility to take any and all appropriate precautions with regard to

electrostatic discharge and any other technical or legal concerns.

EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER

USER NOR ATMEL SHALL BE LIABLE TO EACH OTHER FOR ANY INDIRECT,

SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

No license is granted under any patent right or other intellectual property right of

Atmel covering or relating to any machine, process, or combination in which such

Atmel products or services might be or are used.

Mailing Address: Atmel Corporation, 2325 Orchard Parkway, San Jose, CA 95131

32113-AVR32-07/08

Disclaimer

Headquarters International

Atmel Corporation

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San Jose, CA 95131

USA

Tel: 1(408) 441-0311

Fax: 1(408) 487-2600

Atmel Asia

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Product Contact

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www.atmel.com

Technical Support

avr@atmel.com

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Literature Request

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Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any

intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND

CONDITIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED

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