Category Archives: Tutorials

FPGA Implementation

In this Tutorial, a detailed discussion on FPGA implementation of complex digital circuits is discussed. First, a brief overview on FPGA is given then the steps involved in implementing a circuit are illustrated. Specific examples are shown to illustrate the steps. FPGA: Basic Overview. A tutorial on FPGA Implementation using XILINX ISE. Estimation of Dynamic… Read More »

FSM design

Contents for FSM design are   Sequence Detector using Mealy Machine Sequence Detector using Moore Machine Serial Adder Vending Machine FSMs, an important category of sequential circuits, are used frequently in designing digital systems. From the daily used electronic machines to the complex digital systems, FSMs are used everywhere. For example, in a station the vending… Read More »

System Architectures

Contents for the system architectures are  Serial Architectures Parallel Architectures Pipelining Comparison Based on the signal acquisition strategy, area and timing constraints digital system architectures can be of the following types Serial Architectures Parallel Architectures Mixed Architectures Go to the Top Serial Architectures The serial architectures process a data stream serially by taking one data… Read More »

Memory Design

Contents for memory design are  Controlled Register Read Only Memory (ROM) Random Access Memory (RAM) Dual Port Memory Simple Dual Port Memory In digital system design, the usage of memory elements is unavoidable. In some of the systems, data can be pre-stored in a constant memory. Memory elements can be used as temporary storage of… Read More »

Sequential Circuits

Contents Flip/flops Shift Registers PN Sequence Generator Counters Loadable Counter Clock Division Clock Division by 3 General Approach for Clock Division Sequential Logic Blocks The output of sequential blocks depends on the present state as well as on past state. Sequential circuits work with a reference which is the clock. A clock signal can be… Read More »

Combinational Circuits

Contents for combinational circuits are  Addition/Subtraction Controlled Add_sub Decoder Converters Parity Check and Generator Comparator Design Wired Shift Variable Shift Block Scale Block Combinational Circuits In this post, the realization of various basic combinational circuits using Verilog is discussed. There is no need to discuss the theory behind the combinational blocks. More about the theoretical… Read More »

Verilog Basics

Contents for Verilog Basics are  Dataflow style Behavioral Style Structural Style Mixed Style In this tutorial, different programming styles in Verilog coding will be discussed. Various online tutorials on programming syntax, operators, different commands, assignment strategies and other important topics are already available. Readers can find the references useful for basics. In going through the… Read More »