Article List

09-Mini Project ALU

In this article We create a 32 Bit ALU, the 32-bit ALU VHDL entity perform addition, subtraction, multiplication, division, OR, AND, and XOR operations. The article contain the GitHub link.

Published on: July 16, 2024

08-Parameterized Code Generation

In this article, I ll be focusing on file-based configuration in VHDL code. VHDL can open a file to retrieve configuration data as constantes. I'll also discuss generic design principles and techniques to make VHDL code more flexible and manageable. Additionally, I will demonstrate how to use Quartus' graphical interface for design. Yes, Quartus allows for graphical design, and it can generate both the graphical design and the corresponding HDL code.

Published on: July 11, 2024

07-Packages and Libraries

Using package functions in VHDL is crucial for utilizing processes efficiently. In this article, I will demonstrate how to create a package and use it in other designs. Specifically, I'll discuss an adder and high-speed multiplication using a full adder combination.

Published on: July 10, 2024

06-Simulation and test bench

A test bench in VHDL (VHSIC Hardware Description Language) is an essential tool for verifying the functionality of digital designs. It serves as a simulation environment where the design, known as the Unit Under Test (UUT), can be tested with various input stimuli to ensure it behaves as expected. This article provides a step-by-step guide on creating an effective VHDL test bench, including generating necessary signals, applying test vectors, and monitoring outputs.

Published on: July 03, 2024

05-Finite State Machines

In this article, we dive into the implementation of state machines using VHDL, a key tool in digital system design. You'll learn about the fundamental concepts of Moore and Mealy state machines, their differences, and their applications. I provide detailed VHDL code templates for both types of state machines, illustrating how to define states, manage state transitions, and generate outputs. Additionally, the article includes practical exercises to reinforce your understanding and help you apply state machine principles to real-world digital design challenges. Ideal for engineers and enthusiasts looking to enhance their VHDL programming skills and digital logic expertise.

Published on: July 03, 2024

04-Modeling Sequential Components

Explore the foundational elements of digital circuit design through this article on modeling sequential components using VHDL. Dive into the essential concepts of flip-flops, registers, and counters, each crucial for storing and processing data in digital systems. Learn how VHDL's process statement facilitates the precise description of sequential behavior, ensuring accurate implementation of these components in practical applications. Ideal for engineers and enthusiasts looking to deepen their understanding of digital logic and VHDL programming.

Published on: July 03, 2024

03-Modeling Combinational Components

Explore the fundamentals of modeling combinational components in VHDL with this article. Learn how to implement essential components such as logic gates, multiplexers, and decoders through practical examples and exercises. Enhance your understanding of VHDL by diving into these foundational concepts crucial for digital design. Ideal for both beginners seeking hands-on experience and experienced designers looking to reinforce their skills.

Published on: July 02, 2024

02-Sequential and Concurrent Statements

This article explores the essential concepts of sequential and concurrent statements in VHDL, a hardware description language used for modeling digital systems. It covers key sequential constructs such as processes, `if`, `case`, and `loop` statements, highlighting their use in sequential execution. Additionally, it explains concurrent statements like signal assignments, component instantiations, and generate statements, which model the parallel nature of hardware. The article also delineates the differences between sequential and concurrent execution, providing a comprehensive understanding crucial for efficient and accurate digital design in VHDL.

Published on: July 02, 2024

01-Fundamental Concepts

This article provides an overview of data types in VHDL, a hardware description language used for modeling digital systems. It covers scalar types such as `std_logic`, `bit`, `integer`, `character`, `boolean`, and `real`, explaining their usage and significance. Additionally, the article delves into composite types like arrays and records, highlighting their applications in handling complex data structures. The piece also touches on user-defined data types, including enumerated and physical types, showcasing VHDL's flexibility in modeling custom data. Understanding these data types is essential for efficient and accurate digital design in VHDL.

Published on: July 02, 2024

00-Introduction and Basics of VHDL

In this article, I explain the main points we need to take into consideration to design and create hardware using VHDL code on my FPGA Cyclone board. I'll use this article to set up the project and run it on my board, and I'll use ModelSim to simulate the project as well.

Published on: July 01, 2024