Analog Devices ADSP-2181 Manuel utilisateur

ADSP-2181 EZ-KIT Lite®

Evaluation System Manual

Revision 2.1, October 2003

Part Number

82-000543-01

Analog Devices, Inc.

One Technology Way

Norwood, Mass. 02062-9106

ment may not be reproduced in any form without prior, express written

consent from Analog Devices, Inc.

Printed in the USA.

Limited Warranty

The EZ-KIT Lite evaluation system is warranted against defects in materi-

als and workmanship for a period of one year from the date of purchase

from Analog Devices or from an authorized dealer.

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, and EZ-KIT Lite are registered trade-

marks of Analog Devices, Inc.

VisualDSP++ is a trademark of Analog Devices, Inc.

All other brand and product names are trademarks or service marks of

their respective owners.

ADSP-2181 EZ-KIT Lite Evaluation System Manual iii

CONTENTS

PREFACE

Purpose of This Manual .................................................................. ix

Intended Audience ........................................................................... x

Manual Contents ............................................................................. x

What’s New in This Manual ............................................................ xi

Technical or Customer Support ....................................................... xi

Supported Processors ...................................................................... xii

Product Information ..................................................................... xiii

MyAnalog.com ........................................................................ xiii

DSP Product Information ........................................................ xiii

Related Documents .................................................................. xiv

Online Documentation ............................................................. xv

Printed Manuals ....................................................................... xvi

VisualDSP++ Documentation Set ......................................... xvi

Hardware Manuals ............................................................... xvi

Data Sheets .......................................................................... xvi

Contacting DSP Publications ................................................... xvii

Notation Conventions ................................................................... xvii

CONTENTS

iv ADSP-2181 EZ-KIT Lite Evaluation System Manual

GETTING STARTED

Contents of EZ-KIT Lite Package ................................................. 1-2

System Requirements .................................................................... 1-3

Installation Tasks .......................................................................... 1-3

Setting Up EZ-KIT Lite Hardware .......................................... 1-4

Installing VisualDSP++ and EZ-KIT Lite Software .................. 1-5

Installing VisualDSP++ License ............................................... 1-6

USING EZ-KIT LITE SOFTWARE

EZ-KIT Lite License Restrictions .................................................. 2-2

Memory Map ............................................................................... 2-2

Standard Operations ..................................................................... 2-3

Default Settings ...................................................................... 2-3

Input and Output Devices ....................................................... 2-3

Flags .................................................................................. 2-4

Interrupts ........................................................................... 2-4

Serial Ports ......................................................................... 2-5

POST Routines ....................................................................... 2-5

Memory Checks ................................................................. 2-6

UART Checks .................................................................... 2-6

AD1847 Codec Check and Initialization ............................. 2-7

Monitor Program Operations .................................................. 2-7

Halt loop ........................................................................... 2-7

UART ISR ......................................................................... 2-8

ADSP-2181 EZ-KIT Lite Evaluation System Manual v

CONTENTS

Command Processing .......................................................... 2-8

Software Breakpoints ............................................................... 2-9

AD1847 Codec Dual Analog Front End ................................... 2-9

AD1847 Codec Transmissions ................................................. 2-9

Using EZ-KIT Lite VisualDSP++ Interface .................................. 2-10

Developing Programs ............................................................. 2-10

Starting Visual DSP++ ........................................................... 2-11

Debugging With EZ-KIT Lite ............................................... 2-13

Loading Programs .................................................................. 2-13

Registers and Memory ....................................................... 2-14

Setting Breakpoints and Stepping ...................................... 2-14

Resetting EZ-KIT Lite Board ............................................ 2-14

Example Programs ................................................................. 2-15

ADPCM ........................................................................... 2-15

DTMF ............................................................................. 2-15

ECHO ............................................................................. 2-15

FIRDEMO ....................................................................... 2-16

LPC2K4 ........................................................................... 2-16

LPC7K8 ........................................................................... 2-16

PRIMES ........................................................................... 2-17

EZ-KIT HARDWARE REFERENCE

System Architecture ...................................................................... 3-2

Board Layout ................................................................................ 3-3

Socketed Memory .................................................................... 3-4

CONTENTS

vi ADSP-2181 EZ-KIT Lite Evaluation System Manual

User LEDs .............................................................................. 3-4

Switches .................................................................................. 3-4

Connectors ................................................................................... 3-5

Expansion Port Connectors ..................................................... 3-7

Power Connector .................................................................... 3-9

European Power Supply Connections .................................. 3-9

AD1847 Codec Connectors .................................................... 3-9

EPROM Jumper Settings ...................................................... 3-10

EZ-ICE Connector ............................................................... 3-12

Hardware Operation ............................................................. 3-13

Hardware Debugging ............................................................ 3-13

Designing EZ-ICE Compatible Systems ...................................... 3-14

RESTRICTIONS

BILL OF MATERIALS

INDEX

ADSP-2181 EZ-KIT Lite Evaluation System Manual vii

PREFACE

Thank you for purchasing the ADSP-2181 EZ-KIT Lite®, Analog Devices

(ADI) evaluation system for ADSP-2181 DSPs.

The ADSP-2181 DSP is a single-chip microcomputer optimized for digi-

tal signal processing (DSP) and other high-speed numeric processing

applications.

The evaluation board is designed to be used in conjunction with

VisualDSP++™ development environment to test the capabilities of the

ADSP-2181 DSPs. The VisualDSP++ software gives you the ability to

perform advanced application code development and debug, such as:

• Create, compile, assemble, and link application programs written

in C++, C and ADSP-2181 assembly

• Load, run, step, halt, and set breakpoints in application program

• Read and write data and program memory

• Read and write core and peripheral registers

• Plot memory

You can access the ADSP-2181 processor from a personal computer (PC)

through a serial port or an optional emulator. The monitor program gives

you complete target debug capability through the serial port. In contrast,

the emulator allows the PC to perform in-circuit emulation through the

processor’s emulation port.

viii ADSP-2181 EZ-KIT Lite Evaluation System Manual

The boards features:

• Analog Devices ADSP-2181SK-133 processor

!Operating at an instruction rate of 33 MHz (16.667 exter-

nal clock)

• Analog Audio Interface

!AD1847 – Analog Devices stereo codec

• Analog Inputs

!One stereo pair of 2V RMS AC coupled line-level inputs

!One stereo pair of 20 mV RMS AC coupled microphone

inputs

• Analog Outputs

!One stereo pair of 1V RMS AC coupled line-level outputs

• Power Source

!8 to 10V DC at 300 mA

• Environment

!0 to 70ocentigrade

!10 to 90 percent relative humidity (non condensing)

• RS-232 Interface

• Socketed EPROM

• User push buttons

• Expansion connectors

• User configurable jumper

ADSP-2181 EZ-KIT Lite Evaluation System Manual ix

Preface

The ADSP-2181 EZ-KIT Lite board is equipped with hardware that facil-

itates interactive demonstrations. Push button switches and user

programmable LEDs provide user control and board status checking.

Additionally, the AD1847 SoundPort codec provides access to an audio

input (selectable as line level or microphone) and an audio output (line

level). To learn more about AD1847 codec, refer to the AD1847 General

Purpose Analog Front End data sheet found at

http://www.analog.com/Uploaded-

Files/Obsolete_Data_Sheets/1215246AD1847.pdf.

The ADSP-2181 EZ-KIT Lite includes a monitor program stored in the

socketed EPROM. The monitor program lets the board communicate

over the serial port to a PC. This monitor program lets you download,

execute, and debug ADSP-2181 programs.

You can also connect an EZ-ICE (in-circuit emulator) to the EZ-KIT

Lite. Through the EZ-ICE, you can load programs, start and stop pro-

gram execution, observe and alter registers and memory, and perform

other debugging operations. To learn more about Analog Devices emula-

tors and DSP development tools, go to

http://www.analog.com/dsp/tools/.

Additionally, the EZ-KIT Lite provides user installed expansion connec-

tors that let you examine processor signals, as well as provide an interface

for host control.

"The VisualDSP++ licence provided with this EZ-KIT Lite evalua-

tion system limits the size of a user program to 8K bytes of internal

memory.

Purpose of This Manual

The ADSP-2181 EZ-KIT Lite Evaluation System Manual provides instruc-

tions for using the hardware and installing the software on your PC. This

manual provides guidelines for running your own code on the

Intended Audience

x ADSP-2181 EZ-KIT Lite Evaluation System Manual

ADSP-2181 EZ-KIT Lite. The manual also describes the operation and

configuration of the evaluation board’s components. Finally, a bill of

materials are provided as a reference for future ADSP-2181 board designs.

Intended Audience

This manual is a user’s guide and reference to the ADSP-2181 EZ-KIT

Lite evaluation system. Programmers who are familiar with the Analog

Devices processor architecture, operation, and programming are the pri-

mary audience for this manual.

Programmers who are unfamiliar with Analog Devices 16-bit fixed-point

processors can use this manual in conjunction with the ADSP-218x DSP

Hardware Reference and the ADSP-218x DSP Instruction Set Reference,

which describe the processor architecture and instruction set. Program-

mers who are unfamiliar with VisualDSP++ should refer to the

VisualDSP++ online Help and the VisualDSP++ user’s or getting started

guides. For the locations of these documents, refer to “Related

Documents”.

Manual Contents

The manual consists of:

• Chapter 1,“Getting Started” on page 1-1

Provides software and hardware installation procedures, PC system

requirements, and basic board information.

• Chapter 2, “Using EZ-KIT LITE Software” on page 2-1

Provides information on the EZ-KIT Lite from a programmer’s

perspective and provides an easy-to-access memory map.

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