Analog Devices Blackfin Audio EZ-Extender User manual

a
Blackfin®/SHARC®USB
EZ-Extender®Manual
Revision 1.1, July 2012
Part Number
82-000224-01
Analog Devices, Inc.
One Technology Way
Norwood, Mass. 02062-9106

Copyright Information
© 2012 Analog Devices, Inc., ALL RIGHTS RESERVED. This docu-
ment may not be reproduced in any form without prior, express written
consent from Analog Devices, Inc.
Printed in the USA.
Disclaimer
Analog Devices, Inc. reserves the right to change this product without
prior notice. Information furnished by Analog Devices is believed to be
accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use; nor for any infringement of patents or other rights of
third parties which may result from its use. No license is granted by impli-
cation or otherwise under the patent rights of Analog Devices, Inc.
Trademark and Service Mark Notice
The Analog Devices logo, Blackfin, CrossCore, EngineerZone, EZ-Board,
EZ-Extender, SHARC, and VisualDSP++ are registered trademarks of
Analog Devices, Inc.
All other brand and product names are trademarks or service marks of
their respective owners.

Regulatory Compliance
The Blackfin/SHARC USB EZ-Extender is designed to be used solely in a
laboratory environment. The board is not intended for use as a consumer
end product or as a portion of a consumer end product. The board is an
open system design which does not include a shielded enclosure and there-
fore may cause interference to other electrical devices in close proximity.
This board should not be used in or near any medical equipment or RF
devices.
The Blackfin/SHARC USB EZ-Extender is currently being processed for
certification that it complies with the essential requirements of the Euro-
pean EMC directive 89/336/EEC amended by 93/68/EEC and therefore
carries the “CE” mark.
The Blackfin/SHARC USB EZ-Extender board contains ESD (electrostatic
discharge) sensitive devices. Electrostatic charges readily accumulate on the
human body and equipment and can discharge without detection. Perma-
nent damage may occur on devices subjected to high-energy discharges.
Proper ESD precautions are recommended to avoid performance degrada-
tion or loss of functionality. Store unused extender boards in the protective
shipping package.

Blackfin/SHARC USB EZ-Extender Manual v
CONTENTS
PREFACE
Product Overview ....................................................................... viii
Purpose of This Manual ................................................................ ix
Intended Audience ........................................................................ ix
Manual Contents ........................................................................... x
What’s New in This Manual ........................................................... x
Technical Support ......................................................................... xi
Supported Products ...................................................................... xii
Product Information .................................................................... xii
Analog Devices Web Site ........................................................ xii
EngineerZone ........................................................................ xiii
Related Documents ...................................................................... xiv
BLACKFIN/SHARC USB EZ-EXTENDER INTERFACES
Blackfin/SHARC USB EZ-Extender Setup .................................... 1-1
USB Software ......................................................................... 1-2
USB 2.0 Interface ......................................................................... 1-2

Contents
vi Blackfin/SHARC USB EZ-Extender Manual
BLACKFIN/SHARC USB EZ-EXTENDER HARDWARE
REFERENCE
System Architecture ...................................................................... 2-2
Jumper Settings ............................................................................ 2-2
USB Chip Select Jumper (JP1) ................................................ 2-3
USB IRQ Jumper (JP2) ........................................................... 2-3
USB Soft Reset Jumper (JP3) .................................................. 2-3
BLACKFIN/SHARC USB EZ-EXTENDER BILL OF
MATERIALS
BLACKFIN/SHARC USB EZ-EXTENDER SCHEMATIC
INDEX

Blackfin/SHARC USB EZ-Extender Manual vii
PREFACE
Thank you for purchasing the Blackfin/SHARC USB EZ-Extender®,
Analog Devices, Inc. extender board to the EZ-Board®evaluation system
for the ADSP-BF518F, ADSP-BF526 Blackfin®, and ADSP-21469
SHARC®processors.
Blackfin processors are embedded processors that support a Media
Instruction Set Computing (MISC) architecture. This architecture is the
natural merging of RISC, media functions, and digital signal processing
characteristics towards delivering signal processing performance in a
microprocessor-like environment.
SHARC processors are based on a 32-bit super Harvard architecture that
includes a unique memory architecture comprised of two large on-chip,
dual-ported SRAM blocks coupled with a sophisticated IO processor,
which gives a SHARC processor the bandwidth for sustained high-speed
computations. SHARC processors represents today’s de facto standard for
floating-point processing, targeted toward premium audio applications.
The EZ-Board and Blackfin/SHARC USB EZ-Extender are designed to
be used in conjunction with the CrossCore®Embedded Studio (CCES)
and VisualDSP++®software development environments. The develop-
ment environment facilitates advanced application code development and
debug, such as:
• Create, compile, assemble, and link application programs written
in C++, C, and Blackfin/SHARC USB EZ-Extender assembly
• Load, run, step, halt, and set breakpoints in application programs

Product Overview
viii Blackfin/SHARC USB EZ-Extender Manual
• Read and write data and program memory
• Read and write core and peripheral registers
• Plot memory
To learn more about Analog Devices development software, go to
http://www.analog.com/processors/tools.
Product Overview
The Blackfin/SHARC USB EZ-Extender is a separately sold extender
board that plugs onto the expansion interface of the ADSP-BF518F,
ADSP-BF526, and ADSP-21469 EZ-Board evaluation systems. The
extender board aids the design and prototyping phases of the
ADSP-BF518F, ADSP-BF526, and ADSP-21469 processor targeted
applications.
The board extends the capabilities of the evaluation system by providing a
connection between the asynchronous memory bus of the Black-
fin/SHARC processor and a USB 2.0 device.
Please visit www.analog.com/EX2-USB for additional information, includ-
ing CCES support.
The following is a list of the Blackfin/SHARC USB EZ-Extender
interfaces.
• USB 2.0 interface:
• PLX Technology NET2272 device
• USB driver and application code
• No power supply required: derives power from the EZ-Board
• CE certified

Blackfin/SHARC USB EZ-Extender Manual ix
Preface
Before using any of the interfaces, follow the setup procedure in “Black-
fin/SHARC USB EZ-Extender Setup” on page 1-1.
Example programs are available to demonstrate capabilities of the Black-
fin/SHARC USB EZ-Extender board.
Purpose of This Manual
The Blackfin/SHARC USB EZ-Extender Manual provides instructions for
installing the product hardware (board). The text describes operation and
configuration of the board components. Finally, a schematic and a bill of
materials are provided as a reference for future designs.
Intended Audience
The primary audience for this manual is a programmer who is familiar
with Analog Devices processors. This manual assumes that the audience
has a working knowledge of the appropriate processor architecture and
instruction set.
Programmers who are unfamiliar with Analog Devices processors can use
this manual but should supplement it with other texts that describe your
target architecture. For the locations of these documents, see “Related
Documents”.
Programmers who are unfamiliar with CCES or VisualDSP++ should refer
to the online help and user’s manuals.

Manual Contents
x Blackfin/SHARC USB EZ-Extender Manual
Manual Contents
The manual consists of:
• Chapter 1, “Blackfin/SHARC USB EZ-Extender Interfaces” on
page 1-1
Provides basic board information.
• Chapter 2, “Blackfin/SHARC USB EZ-Extender Hardware Refer-
ence” on page 2-1
Provides information on the hardware aspects of the board.
• Appendix A, “Blackfin/SHARC USB EZ-Extender Bill of Materi-
als” on page A-1
Provides a list of components used to manufacture the
EZ-Extender board.
• Appendix B, “Blackfin/SHARC USB EZ-Extender Schematic” on
page B-1
Provides the resources to allow EZ-Board board-level debugging or
to use as a reference design.
What’s New in This Manual
This is revision 1.1 of the Blackfin/SHARC USB EZ-Extender Manual. The
manual has been updated to include CCES information. In addition,
modifications and corrections based on errata reports against the previous
manual revision have been made.
For the latest version of this manual, please refer to the Analog Devices
Web site.

Blackfin/SHARC USB EZ-Extender Manual xi
Preface
Technical Support
You can reach Analog Devices processors and DSP technical support in
the following ways:
• Post your questions in the processors and DSP support community
at EngineerZone®:
http://ez.analog.com/community/dsp
• Submit your questions to technical support directly at:
http://www.analog.com/support
• E-mail your questions about processors, DSPs, and tools develop-
ment software from CrossCore Embedded Studio or
VisualDSP++:
Choose Help > Email Support. This creates an e-mail to
[email protected] and automatically attaches
your CrossCore Embedded Studio or VisualDSP++ version infor-
mation and license.dat file.
• E-mail your questions about processors and processor applications
to:
[email protected] or
[email protected] (Greater China support)
•IntheUSA only, call 1-800-ANALOGD (1-800-262-5643)
• Contact your Analog Devices sales office or authorized distributor.
Locate one at:
www.analog.com/adi-sales

Supported Products
xii Blackfin/SHARC USB EZ-Extender Manual
• Send questions by mail to:
Processors and DSP Technical Support
Analog Devices, Inc.
Three Technology Way
P.O. Box 9106
Norwood, MA 02062-9106
USA
Supported Products
The Blackfin/SHARC USB EZ-Extender is designed as an extender board
to the ADSP-BF518F, ADSP-BF526, and ADSP-21469 EZ-Board evalua-
tion systems.
Product Information
Product information can be obtained from the Analog Devices Web site
and the online help.
Analog Devices Web Site
The Analog Devices Web site, www.analog.com, provides information
about a broad range of products—analog integrated circuits, amplifiers,
converters, and digital signal processors.
To access a complete technical library for each processor family, go to
http://www.analog.com/processors/technical_library. The manuals
selection opens a list of current manuals related to the product as well as a
link to the previous revisions of the manuals. When locating your manual
title, note a possible errata check mark next to the title that leads to the
current correction report against the manual.

Blackfin/SHARC USB EZ-Extender Manual xiii
Preface
Also note, MyAnalog is a free feature of the Analog Devices Web site that
allows customization of a Web page to display only the latest information
about products you are interested in. You can choose to receive weekly
e-mail notifications containing updates to the Web pages that meet your
interests, including documentation errata against all manuals. MyAnalog
provides access to books, application notes, data sheets, code examples,
and more.
Visit MyAnalog to sign up. If you are a registered user, just log on. Your
user name is your e-mail address.
EngineerZone
EngineerZone is a technical support forum from Analog Devices. It allows
you direct access to ADI technical support engineers. You can search
FAQs and technical information to get quick answers to your embedded
processing and DSP design questions.
Use EngineerZone to connect with other DSP developers who face similar
design challenges. You can also use this open forum to share knowledge
and collaborate with the ADI support team and your peers. Visit
http://ez.analog.com to sign up.

Related Documents
xiv Blackfin/SHARC USB EZ-Extender Manual
Related Documents
For additional information about the product, refer to the following
publications.
Table 1. Related Processor Publications
Title Description
•ADSP-BF512/ADSP-BF514/ADSP-BF516/
ADSP-BF518(F) Blackfin Embedded
Processor Data Sheet
•ADSP-BF522/ADSP-BF523/ADSP-BF524/
ADSP-BF525/ADSP-BF526/ADSP-BF527
Blackfin Embedded Processor Data Sheet
•ADSP-21467/ADSP-21469 SHARC Processor
Data Sheet
General functional description, pinout, and
timing of the processor
•ADSP-BF51x Blackfin Processor Hardware
Reference
•ADSP-BF52x Blackfin Processor Hardware
Reference
•ADSP-214xx SHARC Processor Hardware
Reference
Description of the internal processor architec-
ture and all register functions
•Blackfin Processor Programming Reference
•SHARC Processor Programming Reference
Description of all allowed processor assembly
instructions

Blackfin/SHARC USB EZ-Extender Manual 1-1
1 BLACKFIN/SHARC USB
EZ-EXTENDER INTERFACES
This chapter provides the setup procedures for both the Blackfin/SHARC
USB EZ-Extender and EZ-Board (ADSP-BF518F, ADSP-BF526, or
ADSP-21469) and describes the interfaces the extender supports.
The information is presented in the following order.
•“Blackfin/SHARC USB EZ-Extender Setup” on page 1-1
•“USB 2.0 Interface” on page 1-2
Blackfin/SHARC USB EZ-Extender Setup
It is very important to set up all components of the system containing the
Blackfin/SHARC USB EZ-Extender, then apply power to the system. The
following procedure is recommended for correct setup.
Power your system after these steps are completed:
1. Read the applicable design interface section in this chapter—the
text provides an overview of the interface capabilities.
2. Read “System Architecture” on page 2-2 to understand physical
connections of the extender board. For detailed information, refer
to “Blackfin/SHARC USB EZ-Extender Schematic” on page B-1.
3. Set the jumpers on the Blackfin/SHARC USB EZ-Extender board.
Use the block diagram in Figure 2-1 on page 2-2 in conjunction
with “Jumper Settings” on page 2-2.

USB 2.0 Interface
1-2 Blackfin/SHARC USB EZ-Extender Manual
4. Set the switches and jumpers on the EZ-Board. If not already,
familiarize yourself with the EZ-Board documentation and sche-
matic drawings (see “Product Information”).
Compare the expansion interface signals of the Blackfin/SHARC
USB EZ-Extender board with the EZ-Board signals to ensure there
is no contention. For example, it may be necessary to disable other
devices connected to the expansion interface of the processor and
disable peripherals on the EZ-Board.
5. Install the Blackfin/SHARC USB EZ-Extender on the EZ-Board
via the high speed expansion interface.
USB Software
For information about USB software, refer to the readme text files in the
Examples folder of the installation directory.
USB 2.0 Interface
The Blackfin/SHARC USB EZ-Extender enables a connection between a
USB 2.0 chip and Blackfin/SHARC processor without any other pro-
grammable logic. The PLX Technology’s NET2272 controller ties directly
to the asynchronous memory bus of the Blackfin or SHARC processor.
You can read from and write to the USB 2.0 controller by addressing the
named memory bank directly.
You can reset the NET2272 controller by asserting LOW one of the four
GPIO signals of the expansion interface. Refer to the appropriate
EZ-Board manual to learn how the GPIO signals connect to the
processor.
The USB IRQ signal of the NET2272 controller connects to one of the
four GPIO signals on the expansion interface. Refer to the appropriate

Blackfin/SHARC USB EZ-Extender Manual 1-3
Blackfin/SHARC USB EZ-Extender Interfaces
EZ-Board document to learn how the GPIO signals connect to the
processor.
The USB CS signal of the NET2272 controller connects to one of the four
AMS signals on the expansion interface. Refer to the appropriate EZ-Board
manual to learn how the AMS signals connect to the processor.
The jumper settings required for each of the respective EZ-Boards are
described in the readme text files in the Examples folder of the installation
directory. The readme file describes the USB software, source code, driv-
ers, and explains how to run a USB-based application.

USB 2.0 Interface
1-4 Blackfin/SHARC USB EZ-Extender Manual

Blackfin/SHARC USB EZ-Extender Manual 2-1
2 BLACKFIN/SHARC USB
EZ-EXTENDER HARDWARE
REFERENCE
This chapter describes the hardware design of the Blackfin/SHARC USB
EZ-Extender.
The following topics are covered.
•“System Architecture” on page 2-2
Describes the board configuration and explains how the board
components interface with the processor and EZ-Board.
•“Jumper Settings” on page 2-2
Describes the on-board configuration jumpers.

System Architecture
2-2 Blackfin/SHARC USB EZ-Extender Manual
System Architecture
A block diagram of the Blackfin/SHARC USB EZ-Extender is shown in
Figure 2-1.
Jumper Settings
Before using the Blackfin/SHARC USB EZ-Extender, follow the setup
procedure in “Blackfin/SHARC USB EZ-Extender Setup” on page 1-1.
Figure 2-2 shows the locations of all jumper headers. A two-pin jumper
can be placed on the respective jumper header for different functionality.
The following sections describe all possible jumper settings and associated
functionality.
Figure 2-1. Block Diagram