VHDL (VHSIC Hardware Description Language) is a hardware description language used in electronic design automation to describe digital and mixed-signal systems such as field-programmable gate arrays and integrated circuits. VHDL can also be used as a general purpose parallel programming language.
Advantages of VHDL
The key advantage of VHDL, when used in system design, is that it allows the behavior of the required system to be described (modeled) and verified (simulated) before synthesis tools translate the design into real hardware (gates and wires). Another benefit is that VHDL allows the description of a concurrent system. VHDL is a dataflow language, unlike procedural computing languages such as BASIC, C, and assembly code, which all run sequentially, one instruction at a time. A VHDL project is multipurpose. Being created once, a calculation block can be used in many other projects. However, many formational and functional block parameters can be tuned (capacity parameters, memory size, element base, block composition and interconnection structure). A VHDL project is portable. Being created for one element base, a computing device project can be ported on another element base, for example VLSI with various technologies.
About VHDL Training Course :
This course covers the VHDL Programming Concepts to design and Implementation of VHDL Programs on Xilinx Software and ModelSim Simulation and also run on Xilinx Spartan-3 BASYS2 and Xilinx Spartan 3E Boards.
INTRODUCTION · Need, Scope and Use of VLSI · Hardware description languages. · Scope and History of VHDL · Applications and Special features of VHDL · Introduction to VHDL o Design Process, Design Simulation and Design Synthesis o Design Methodology- Top Down and Bottom Up · Basics of VHDL o Data objects, Classes and data types, o Operators- Arithmetic , Relational and Logical o Operator Overloading o Types of delays o Entity and Architecture declaration. VHDL MODELS · Data Flow Model o Using Concurrent Statements · Behavioral Model o Using Process Keyword, Conditional Statements and Loops · Structural Model o Using Interconnection of Components VHDL STATEMENTS · Concurrent statements, · Sequential statements, · Array and loops, · Resolution functions, · Packages & Libraries, COMBINATIONAL DESIGN EXERCISES · Design of Gates o Design of AND gate o Design of OR gate o Design of NOT gate o Design of UNIVERSAL gates · Design of XOR and XNOR gate using other basic gates · Design of 2:1 MUX using other basic gates · Design of 1:4 Decoder · Design of Half-Adder, Full Adder, Half Subtractor, Full Subtractor · Design of 3:8 Decoder · Design of 8:3 Priority Encoder · Design of 4 Bit Binary to Gray code Converter · Design of BCD to Excess3 code Converter · Design of 4 Bit Binary to Seven Segment Display · Design of 4 Bit Binary to BCD Converter using sequential statement · Design an 8 Bit parity generator ( with for loop and Generic statements) · Design of 2’s Complement for 8-bit Binary number SEQUENTIAL DESIGN EXERCISES · Design of all types of Flip-Flops using ( if-then-else) Sequential Constructs · Design of 8-Bit Shift Register with shift Right, Shift Left, Load and Synchronous reset. · Design of shift Registers- o SISO o PIPO o SIPO o PISO · Design of Synchronous 8-Bit universal shift register ( parallel-in, parallel-out). · Design of Synchronous 8-bit Johnson Counter · Design of Ring Counter · Design o Mod 3 Counter o Mod 5 Counter o Mod 7 Counter o Mod 8 Counter o Mod 16 counter · Design a decimal up/down counter that counts up from 00 to 99 or down from 99 to 00. · Design 3-line to 8-line decoder with address latch · Design of ALU FINITE STATE MACHINE · Moore machine · Mealy machine DESIGN OF MICROCOMPUTER USING VHDL DESIGN WITH CPLDs AND FPGAs · Programmable logic devices (PLDs) o ROM, o PLA, o PAL · Complex PLD (CPLD) · Field Programmable Gate Array (FPGA) · Design and implementation using CPLDs and FPGAs VHDL HARDWARE INTERACTION: FPGA PROTOTYPING 1. Introduction 2. FPGA and their types 3. Overview of the Digilent S3 board 4. Development flow 5. Overview of the Xilinx ISE project navigator 6. Tutorial on ISE project navigator 7. Tutorial on the ModelSim HDL simulator 8. General FPGA device 9. Overview of the Xilinx Spartan-3 devices 10. Create the Design project and HDL codes 11. Create a Testbench and perform the RTL simulation 12. Constaints File and Need of Constaints File in VHDL Add a constraint file and synthesize and implement the code 13. Creating bit file for Digilent S3 board 14. Using iMPACT and Digilent Adept Software. 15. Programming/Loading Files to Target. Hardware Interfacing: 1. Understanding Schematic of Digilent S3 board 2. Interfacing SRAM Memory Technique. 3. Interfacing LED with FPGA 4. Interfacing SW with FPGA 5. Interfacing 7-SEGMENT with FPGA 6. UART Serial Communication with FPGA 7. PS2 Keyboard, PS2 Mouse 8. VGA (CRT) Controller Graphic and Text
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