You're reading from FPGA Programming for Beginners Bring your ideas to life by creating hardware designs and electronic circuits with SystemVerilog

Product type Paperback

Published in Mar 2021

Publisher Packt

ISBN-13 9781789805413

Length 368 pages

Edition 1st Edition

Languages

Assembly

Tools

FPGA

Concepts

Embedded Systems

Author (1):

Frank Bruno

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Table of Contents (16) Chapters

Preface

1. Section 1: Introduction to FPGAs and Xilinx Architectures

2. Chapter 1: Introduction to FPGA Architectures and Xilinx Vivado FREE CHAPTER

3. Section 2: Introduction to Verilog RTL Design, Simulation, and Implementation

4. Chapter 2: Combinational Logic

5. Chapter 3: Counting Button Presses

6. Chapter 4: Let's Build a Calculator

7. Chapter 5: FPGA Resources and How to Use Them

8. Chapter 6: Math, Parallelism, and Pipelined Design

9. Section 3: Interfacing with External Components

10. Chapter 7: Introduction to AXI

11. Chapter 8: Lots of Data? MIG and DDR2

12. Chapter 9: A Better Way to Display – VGA

13. Chapter 10: Bringing It All Together

14. Chapter 11: Advanced Topics

15. Other Books You May Enjoy

What is a sequential element?

We looked at the latch in Chapter 1, Introduction to FPGA Architectures and Xilinx Vivado, and we saw that it's not something we really want to be using. What FPGA designers use to store information is a register, or flip flop. Before we create our first flip flop, we need a quick introduction to clocks.

Clocking your design

In the realm of digital logic, we usually need at least one source of timing in our design and often several. We call this source of timing a clock, which is usually generated by an external crystal oscillator that vibrates at a certain frequency and generates a string of 0s and 1s in our design. Sometimes we'll use the clock input directly, but if we need a specific frequency faster or slower than our input, we have other options such as Phase Locked Loops (PLLs) and Mixed Mode Clock Managers (MMCMs), which we'll discuss in Chapter 5, FPGA Resources and How to Use Them.

When we draw timing diagrams, we typically...