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了解如何使用FPGA(现场可编程门阵列)设计数字电路,这些设备可以重新配置自己,使其成为您要编程的硬件电路。通过这个实用指南,作者贾斯汀·拉杰斯基向你展示了如何创建FPGA项目,无论你是程序员、工程师、产品设计师还是制造者。您将很快从基础到设计您自己的处理器。过去,设计数字电路是一项漫长而昂贵的工作,只有大公司才能做到。FPGA使这一过程变得容易得多,现在,即使是对爱好者来说,它们也是可以负担得起的。如果您熟悉电力和基本电气组件,这本书开始简单,并通过日益复杂的项目前进。
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Justin Rajewski
Learning FPGAs
D
i
gital Design for Beginners
with Mojo and Lucid HDL
Boston Farnham Sebastopol TokyoBeijing Boston Farnham Sebastopol TokyoBeijing
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Learning FPGAs
by Justin Rajewski
Copyright © 2017 Justin Rajewski. All rights reserved.
Printed in the United States of America.
Published by O’Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472.
O’Reilly books may be purchased for educational, business, or sales promotional use. Online editions are
also available for most titles (http://oreilly.com/safari). For more information, contact our corporate/insti‐
tutional sales department: 800-998-9938 or corporate@oreilly.com.
Editors: Brian J
epson and Jeff Bleiel
Production Editor: Nicholas Adams
Copyeditor: Sharon Wilkey
Proofreader: Amanda Kersey
Indexer: W
endy Catalano
Interior Designer: David Futato
Cover Designer: Karen Montgomery
Illustrator: Rebecca Demarest
August 2017: First Edition
Revision History for the First Edition
2017-08-02: First Release
See http://oreilly.com/catalog/errata.csp?isbn=9781491965498 for release details.
The O’Reilly logo is a registered trademark of O’Reilly Media, Inc. Learning FPGAs, the cover image, and
related trade dress are trademarks of O’Reilly Media, Inc.
While the publisher and the author have used good faith efforts to ensure that the information and
instructions contained in this work are accurate, the publisher and the author disclaim all responsibility
for errors or omissions, including without limitation responsibility for damages resulting from the use of
or reliance on this work. Use of the information and instructions contained in this work is at your own
risk. If any code samples or other technology this work contains or describes is subject to open source
licenses or the intellectual property rights of others, it is your responsibility to ensure that your use
thereof complies with such licenses and/or rights.
978-1-491-96549-8
[LSI]
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Table of Contents
Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vii
1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
The M
ojo 1
FPGAs Versus Microcontrollers: A Comparison 3
Setting Up Your Environment 7
Installing ISE 8
Installing the Mojo IDE 14
Mojo IDE Settings 15
2. Your First FPGA Project. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Crea
ting a New Project 19
Understanding Modules 21
Representing Values 22
Using Always Blocks 23
Connecting the Button 25
Building Your Project 26
Loading Your Project 27
Some Notes on Hardware 30
Duplication 30
Array Indexing 30
Always Block Priority 31
3. Combinational Logic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
IO Shield
33
Logic Functions 36
Bitwise Operators 39
Reduction Operators 40
iii
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