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Encoding the States of a Finite State Machine in VHDL

Encoding the States of a Finite State Machine in VHDL

This article will review different encoding methods that can be used to implement the states of an FSM.


Incomplete If Statements and Latch Inference in VHDL

Incomplete If Statements and Latch Inference in VHDL

In this article, we’ll see that a memory element can be unintentionally inferred from an incomplete “if” statement.


Sequential VHDL: If and Case Statements

Sequential VHDL: If and Case Statements

This article will review two important sequential statements in VHDL, namely “if” and “case” statements.


The Variable: A Valuable Object in Sequential VHDL

The Variable: A Valuable Object in Sequential VHDL

This article will discuss the important features of variables in VHDL.


Introduction to Sequential VHDL Statements

Introduction to Sequential VHDL Statements

This article will try to develop a better understanding of the sequential statement’s importance in VHDL.


Review of VHDL Signed/Unsigned Data Types

Review of VHDL Signed/Unsigned Data Types

This article will review the “signed”/“unsigned” data types.


Integer and Its Subtypes in VHDL

Integer and Its Subtypes in VHDL

This article will discuss the VHDL integer data type.


VHDL Data Types: Some Classifications and the Enumerated Type

VHDL Data Types: Some Classifications and the Enumerated Type

This article will first review classifications for the VHDL data types, and then it will discuss the enumerated type.


Simplifying VHDL Code: The Std_Logic_Vector Data Type

Simplifying VHDL Code: The Std_Logic_Vector Data Type

This article will review the "std_logic_vector" data type which is one of the most common data types in VHDL.


Concurrent Conditional and Selected Signal Assignment in VHDL

Concurrent Conditional and Selected Signal Assignment in VHDL

This article will review the concurrent signal assignment statements in VHDL.


What Is VHDL? Getting Started with Hardware Description Language for Digital Circuit Design

What Is VHDL? Getting Started with Hardware Description Language for Digital Circuit Design

This article gives some introductory examples for VHDL coding, a hardware description language used in digital circuit design.


GPS Times, Atomic Clock Frequencies, and the Increasing Accuracy of GPS

GPS Times, Atomic Clock Frequencies, and the Increasing Accuracy of GPS

GPS as we know it requires the precision of atomic clocks. This article looks at the importance of timing for GPS and the clocks that provide it.


Rigid vs. Flexible PCBs: Which One is Best for Your Next Project?

Rigid vs. Flexible PCBs: Which One is Best for Your Next Project?

Learn about rigid PCBs vs. flexible PCBs, when it's better to use one type instead of the other, and learn about some manufacturing steps related to each of these PCB types.


The Effect of Coefficient Quantization on the Performance of a Digital Filter

The Effect of Coefficient Quantization on the Performance of a Digital Filter

This article will verify that a suitable structure can reduce the sensitivity of a digital filter response to the coefficient quantization.


Structures for Implementing Finite Impulse Response Filters

Structures for Implementing Finite Impulse Response Filters

This article will review some basic structures to implement Finite Impulse Response (FIR) filters.


DFT Leakage and the Choice of the Window Function

DFT Leakage and the Choice of the Window Function

This article will review the use of window functions to alleviate the DFT leakage.


An Introduction to the Discrete Fourier Transform

An Introduction to the Discrete Fourier Transform

The DFT is one of the most powerful tools in digital signal processing which enables us to find the spectrum of a finite-duration signal.


An Introduction to Canonical Signed Digit Representation

An Introduction to Canonical Signed Digit Representation

CSD is an elegant method to implement digital multipliers in a more efficient way.


Multirate DSP and Its Application in D/A Conversion

Multirate DSP and Its Application in D/A Conversion

This article reviews the basics of D/A conversion and explains how multirate DSP can lead to a more efficient system.


Radio Meets Fiber Optics: RF Over Fiber

Radio Meets Fiber Optics: RF Over Fiber

Radio Over Fiber (ROF) combines RF and optics, providing optical links to replace strategic portions of cellular, satellite, and copper based systems.