Introduction to Verilog
This self-study guide came about as the result of the popularity of my textbook, Verilog Designer's Library. That book is an intermediate to advanced level reference book about the Verilog Hardware Description Language. Shortly after its publication, the Institute of Electrical and Electronics Engineers (IEEE) approached me to create an introductory book, based on the Verilog seminar that I give around the world. Over the years I've used the feedback from students to try to make it the best introductory Verilog course available. I hope I've succeeded. If you want to comment, either to congratulate me on the excellent job I've done, to ask a question, to point out a mistake or misconception, to suggest improvements for the future, or simply to complain, please do so. I welcome all feedback. -Bob Zeidman
Why Read This Book
You should read this book if you want a concise, self-study introduction to Verilog HDL that focuses on practical RTL coding and testbench techniques. It walks you through common constructs and coding styles used for synthesis and simulation, making it a quick on-ramp from digital-logic concepts to runnable Verilog designs.
Who Will Benefit
Beginners and hardware engineers new to Verilog who need a structured, example-driven introduction to RTL coding, simulation, and synthesis-ready practices.
Level: Beginner — Prerequisites: Basic digital logic (gates, flip-flops, combinational vs sequential logic) and familiarity with programming concepts (variables, control flow) is helpful.
Key Takeaways
- Write synthesizable Verilog modules for common combinational and sequential circuits
- Develop and run simple testbenches to simulate and verify designs
- Apply blocking vs non-blocking assignment correctly in RTL
- Design finite-state machines and translate state diagrams into Verilog
- Understand synthesis vs simulation differences and coding guidelines for FPGA toolchains
Topics Covered
- Introduction to Hardware Description Languages and Verilog
- Lexical Elements, Data Types, and Operators
- Modules, Ports, and Hierarchy
- Combinational Modeling and Continuous Assignments
- Sequential Modeling: always blocks, registers, and clocks
- Blocking vs Non-blocking Assignments and Coding Style
- Finite-State Machines and Mealy/Moore Design
- Tasks, Functions, Parameters, and Generate Constructs
- Testbenches, Simulation, and Waveform Debugging
- Synthesis Concepts and FPGA Coding Guidelines
- Timing, Delays, and Simulation-Synthesis Mismatches
- Practical Examples and Design Walkthroughs
- Appendices: Verilog Language Summary and Reference
Languages, Platforms & Tools
How It Compares
Easier and more tutorial than Samir Palnitkar's Verilog HDL (which is broader and more reference-like); more introductory and example-focused than Pong P. Chu's FPGA Prototyping with Verilog Examples, which is more hands-on with modern FPGA boards.
