VHDL Examples Mohamed Zaky
|
|
- Patrick Jenkins
- 6 years ago
- Views:
Transcription
1 VHDL Examples By Mohamed Zaky 1
2 Half Adder The Half Adder simply adds 2 input bits, to produce a sum & carry output. Here we want to add A + B to produce Sum (S) and carry (C). A B HALF ADDER Sum (S) Carry (C) Truth Table A B S C Designing Logic Circuit S = AB + AB (XOR) C = AB (AND) VHDL code HALF ADDER Entity entity HALFADD is port ( A,B : in bit; S,C : out bit ); end HALFADD; Architecture architecture struct of HALFADD is begin S <= A xor B; C <= A and B; end struct; MZ 2
3 Full Adder (1 bit) The Full Adder operates on 3 inputs to produce a sum & carry output. C IN A B FULL ADDER Sum (S) C OUT We can design the Full Adder by using truth table and get its logic expression; but it s better to use the Half Adder we just designed to build the Full Adder. Since the Half Adder adds only 2 inputs while the Full Adder adds 3 inputs; then we can use 2 Half Adders to construct Full Adder. A B HALF ADDER 1 I2 I1 HALF ADDER 2 I3 Sum (S) C IN I2 OR C OUT Full Adder using 2 Half Adders & 1 OR gate To add a an already designed component to a new design First, add it as follows: 3
4 Syntax component ENTITYNAME (of the desired component) port (INPUTS : DATATYPE; OUTPUTS : DATATYPE); end component; Second, use the added component as a ready, functioning block (don t write its VHDL code again) Just use it as a block, having inputs & outputs. This is done using Port map, as follows: Syntax Label: ENTITYNAME (of the desired component) port map (INPUTS & OUTPUTS) It s that simple!! VHDL code FULL ADDER (1 bit) Entity entity FULLADD is port ( A,B,CIN : in bit; COUT,S: out bit); end FULLADD; Architecture architecture struct of FULLADD is Signals signal I1,I2,I3 : bit; use HALF ADDER component HALFADD port (A,B : in bit; S,C : out bit ); end component; Begin!! begin HA1:HALFADD port map (A,B,I1,I2); HA2:HALFADD port map (I1,CIN,S,I3); COUT <= I3 or I2; end struct; 4
5 MZ Full Adder (2 bit) We first made 2 bit Full Adder to make the idea of n-bit Full Adder clear. We made the 2 bit Full Adder using 2 (1 bit) Full Adders. Here is a simple block diagram of 2 bit Full Adder (In the case of 8 bit Full Adder we will have 8 Full Adder (FA#0 to FA#7)) a0 a1 co FA #0 c1 s0 FA #1 c2 s1 b0 b1 VHDL code 2 bit FULL ADDER Entity entity FULLADD2 is port (a0,b0,a1,b1,c0 :in bit; c2,s0,s1 :out bit); end FULLADD2; Architecture architecture struct of FULLADD2 is Signals signal c1:bit; use 1 bit FULL ADDER component FULLADD port ( A,B,CIN :in bit ; S,COUT : out bit); end component; Begin!! begin FA1:FULLADD port map(a0,b0,c0,s0,c1); FA2:FULLADD port map(a1,b1,c1,s1,c2); end struct; 5
6 MZ 4 bit Full Adder To understand this code, just draw its Block diagram exactly like 2 bit Full Adder (of course you will use 4 Full Adders) You can extend this code to any N bit Full Adders See Digital Electronics Reference of second year (Tocci) page 289. VHDL code 4 bit FULL ADDER Entity entity FULLADD4 is port (a0,b0,a1,b1,a2,b2,a3,b3,c0 :in bit; c4,s0,s1,s2,s3 :out bit); end FULLADD4; Architecture architecture struct of FULLADD4 is Signals signal c1,c2,c3 :bit; use 1 bit FULL ADDER component FULLADD port ( A,B,CIN :in bit ; S,COUT : out bit); end component; Begin!! begin FA1:FULLADD port map(a0,b0,c0,s0,c1); FA2:FULLADD port map(a1,b1,c1,s1,c2); FA3:FULLADD port map(a2,b2,c2,s2,c3); FA4:FULLADD port map(a3,b3,c3,s3,c4); end struct; MZ 6
7 DFF (flip flop) The new thing in this code is that we use CLK input. In VHDL, if you want to use CLK input then put it in a Process. Syntax PROCESS(clk) IF ( clk = '1') AND ( clk'event ) THEN here we work on positive going transition q <= d; END IF; END PROCESS; In the beginning of the code we wrote LIBRARY IEEE; USE IEEE.std_logic_1164.ALL; The IEEE introduced many new Data Types, Here we used (std_logic_1164) which has a main benefit; that is its values are (1or High, 0 or Low & Don t Care). Here we might not want Don t Care condition; frankly I m not sure if we need this declaration or not. Any way it s better to call IEEE library (just as you call header files in C). 7
8 VHDL code D Flip-Flop LIBRARY IEEE; USE IEEE.std_logic_1164.ALL; Entity ENTITY dff IS PORT( d, clk : IN std_logic; q : OUT std_logic); END dff; Architecture ARCHITECTURE structdff OF dff IS Begin!! PROCESS(clk) IF ( clk = '1') AND ( clk'event ) THEN q <= d; END IF; END PROCESS; END structdff; MZ 8
9 Shift Register (4 bit) A shift register is a group of Flip Flops (FFs) arranged so that the binary numbers stored in the FFs are shifted from one FF to the next for every clock pulse. We made a 4-bit Shift Register using DFFs. 4-bit Shift Register Block Diagram 9
10 VHDL code Shift Register LIBRARY IEEE; USE IEEE.std_logic_1164.ALL; Entity ENTITY shiftreg IS PORT( a, clk : IN std_logic; b : OUT std_logic); END shiftreg; Architecture ARCHITECTURE structshift OF shiftreg IS COMPONENT dff PORT( d, clk : IN std_logic; q : OUT std_logic); END COMPONENT; SIGNAL z : std_logic_vector( 0 TO 4 ); z(0) <= a; dff1: dff PORT MAP( z(0), clk, z(1) ); dff2: dff PORT MAP( z(1), clk, z(2) ); dff3: dff PORT MAP( z(2), clk, z(3) ); dff4: dff PORT MAP( z(3), clk, z(4) ); b <= z(4); END structshift; 10
11 Multiplexer ( 4 in ; 2 select ; 1 out!! ) MUX VHDL code Multiplexer ( 4 in ; 2 select ; 1 out!! ) Entity ENTITY mux1 IS PORT ( a, b, c, d : IN BIT; s0, s1 : IN BIT; x : OUT BIT); END mux1; Architecture ARCHITECTURE seqmux OF mux1 IS Begin!! process (a, b, c, d, s0, s1 ) IF s0 = '0' and s1 = '0' THEN x <= a; ELSIF s0 = '1' and s1 = '0' THEN x <= b; ELSIF s0 = '0' and s1 = '1' THEN x <= c; ELSE x <= d; END IF; END process; END seqmux; MZ 11
Hardware Description Language VHDL (1) Introduction
Hardware Description Language VHDL (1) Introduction Digital Radiation Measurement and Spectroscopy NE/RHP 537 Introduction Hardware description language (HDL) Intended to describe circuits textually, for
More informationMridula Allani Fall Fall
Mridula Allani Fall 2010 Fall 2010 1 Model and document digital systems Hierarchical models System, RTL (Register Transfer Level), gates Different levels of abstraction Behavior, structure Verify circuit/system
More informationLecture 7. Standard ICs FPGA (Field Programmable Gate Array) VHDL (Very-high-speed integrated circuits. Hardware Description Language)
Standard ICs FPGA (Field Programmable Gate Array) VHDL (Very-high-speed integrated circuits Hardware Description Language) 1 Standard ICs PLD: Programmable Logic Device CPLD: Complex PLD FPGA: Field Programmable
More informationAbi Farsoni, Department of Nuclear Engineering and Radiation Health Physics, Oregon State University
Hardware description language (HDL) Intended to describe circuits textually, for a computer to read Evolved starting in the 1970s and 1980s Popular languages today include: VHDL Defined in 1980s by U.S.
More informationBasic Language Concepts
Basic Language Concepts Sudhakar Yalamanchili, Georgia Institute of Technology ECE 4170 (1) Describing Design Entities a sum b carry Primary programming abstraction is a design entity Register, logic block,
More informationCSE 260 Introduction to Digital Logic and Computer Design. Exam 1. Your name 2/13/2014
CSE 260 Introduction to Digital Logic and Computer Design Jonathan Turner Exam 1 Your name 2/13/2014 1. (10 points) Draw a logic diagram that implements the expression A(B+C)(C +D)(B+D ) directly (do not
More informationReview. LIBRARY list of library names; USE library.package.object; ENTITY entity_name IS generic declarations PORT ( signal_name(s): mode signal_type;
LIBRARY list of library names; USE library.package.object; Review ENTITY entity_name IS generic declarations PORT ( signal_name(s): mode signal_type; signal_name(s) : mode signal_type); END ENTITY entity_name;
More informationACS College of Engineering. Department of Biomedical Engineering. Logic Design Lab pre lab questions ( ) Cycle-1
ACS College of Engineering Department of Biomedical Engineering Logic Design Lab pre lab questions (2015-2016) Cycle-1 1. What is a combinational circuit? 2. What are the various methods of simplifying
More informationVHDL 2 Combinational Logic Circuits. Reference: Roth/John Text: Chapter 2
VHDL 2 Combinational Logic Circuits Reference: Roth/John Text: Chapter 2 Combinational logic -- Behavior can be specified as concurrent signal assignments -- These model concurrent operation of hardware
More informationELCT 501: Digital System Design
ELCT 501: Digital System Lecture 4: CAD tools (Continued) Dr. Mohamed Abd El Ghany, Basic VHDL Concept Via an Example Problem: write VHDL code for 1-bit adder 4-bit adder 2 1-bit adder Inputs: A (1 bit)
More informationEE6301 DIGITAL LOGIC CIRCUITS UNIT V VHDL PART A
EE6301 DIGITAL LOGIC CIRCUITS UNIT V VHDL PART A 1. Write a VHDL code for 2 x 1 MUX. [N/D 14], [ M/J 16], [A/M 17] library ieee; use ieee.std_logic_1164.all; entity mux2_1 is port (a,b,sel:instd_logic;
More informationField Programmable Gate Array
Field Programmable Gate Array System Arch 27 (Fire Tom Wada) What is FPGA? System Arch 27 (Fire Tom Wada) 2 FPGA Programmable (= reconfigurable) Digital System Component Basic components Combinational
More informationDigital Design Using VHDL Using Xilinx s Tool for Synthesis and ModelSim for Verification
Digital Design Using VHDL Using Xilinx s Tool for Synthesis and ModelSim for Verification Ahmed Abu-Hajar, Ph.D. abuhajar@digitavid.net Digitavid, Inc San Jose, CA Session One Outline Introducing VHDL
More informationDigital Systems Design
Digital Systems Design Review of Combinatorial Circuit Building Blocks: VHDL for Combinational Circuits Dr. D. J. Jackson Lecture 2-1 Introduction to VHDL Designer writes a logic circuit description in
More information2/14/2016. Hardware Synthesis. Midia Reshadi. CE Department. Entities, Architectures, and Coding.
Hardware Synthesis MidiaReshadi CE Department Science and research branch of Islamic Azad University Email: ce.srbiau@gmail.com Midia Reshadi 1 Chapter 2 Entities, Architectures, and Coding Styles Midia
More informationPart 4: VHDL for sequential circuits. Introduction to Modeling and Verification of Digital Systems. Memory elements. Sequential circuits
M1 Informatique / MOSIG Introduction to Modeling and erification of Digital Systems Part 4: HDL for sequential circuits Laurence PIERRE http://users-tima.imag.fr/amfors/lpierre/m1arc 2017/2018 81 Sequential
More informationSequential Statement
Sequential Statement Sequential Logic Output depends not only on current input values but also on previous input values. Are building blocks of; Counters Shift registers Memories Flip flops are basic sequential
More informationConcurrent Signal Assignment Statements (CSAs)
Concurrent Signal Assignment Statements (CSAs) Digital systems operate with concurrent signals Signals are assigned values at a specific point in time. VHDL uses signal assignment statements Specify value
More informationHardware Description Languages. Modeling Complex Systems
Hardware Description Languages Modeling Complex Systems 1 Outline (Raising the Abstraction Level) The Process Statement if-then, if-then-else, if-then-elsif, case, while, for Sensitivity list Signals vs.
More informationModeling Complex Behavior
Modeling Complex Behavior Sudhakar Yalamanchili, Georgia Institute of Technology, 2006 (1) Outline Abstraction and the Process Statement Concurrent processes and CSAs Process event behavior and signals
More informationFPGA Design Challenge :Techkriti 14 Digital Design using Verilog Part 1
FPGA Design Challenge :Techkriti 14 Digital Design using Verilog Part 1 Anurag Dwivedi Digital Design : Bottom Up Approach Basic Block - Gates Digital Design : Bottom Up Approach Gates -> Flip Flops Digital
More informationVHDL for FPGA Design. by : Mohamed Samy
VHDL for FPGA Design by : Mohamed Samy VHDL Vhdl is Case insensitive myvar = myvar = MYVAR IF = if = if Comments start with -- Comments can exist anywhere in the line Semi colon indicates the end of statements
More informationDepartment of Electronics & Communication Engineering Lab Manual E-CAD Lab
Department of Electronics & Communication Engineering Lab Manual E-CAD Lab Prasad V. Potluri Siddhartha Institute of Technology (Sponsored by: Siddhartha Academy of General & Technical Education) Affiliated
More informationArithmetic Circuits. Nurul Hazlina Adder 2. Multiplier 3. Arithmetic Logic Unit (ALU) 4. HDL for Arithmetic Circuit
Nurul Hazlina 1 1. Adder 2. Multiplier 3. Arithmetic Logic Unit (ALU) 4. HDL for Arithmetic Circuit Nurul Hazlina 2 Introduction 1. Digital circuits are frequently used for arithmetic operations 2. Fundamental
More informationComputer-Aided Digital System Design VHDL
بس م اهلل الر حم ن الر حی م Iran University of Science and Technology Department of Computer Engineering Computer-Aided Digital System Design VHDL Ramin Rajaei ramin_rajaei@ee.sharif.edu Modeling Styles
More informationVHDL. ELEC 418 Advanced Digital Systems Dr. Ron Hayne. Images Courtesy of Cengage Learning
VHDL ELEC 418 Advanced Digital Systems Dr. Ron Hayne Images Courtesy of Cengage Learning Design Flow 418_02 2 VHDL Modules 418_02 3 VHDL Libraries library IEEE; use IEEE.std_logic_1164.all; std_logic Single-bit
More information1. What is y-chart? ans: The y- chart consists of three domains:- behavioral, structural and geometrical.
SECTION- A Short questions: (each 2 marks) 1. What is y-chart? ans: The y- chart consists of three domains:- behavioral, structural and geometrical. 2. What is fabrication? ans: It is the process used
More informationUNIT I Introduction to VHDL VHDL: - V -VHSIC, H - Hardware, D - Description, L Language Fundamental section of a basic VHDL code Library :
UNIT I Introduction to VHDL VHDL stands for very high-speed integrated circuit hardware description language. Which is one of the programming languages used to model a digital system by dataflow, behavioral
More informationTiming in synchronous systems
BO 1 esign of sequential logic Outline Timing in synchronous networks Synchronous processes in VHL VHL-code that introduces latches andf flip-flops Initialization of registers Mealy- and Moore machines
More informationVHDL VS VERILOG.
1 VHDL VS VERILOG http://www.cse.cuhk.edu.hk/~mcyang/teaching.html 2 VHDL & Verilog They are both hardware description languages for modeling hardware. They are each a notation to describe the behavioral
More informationCOE 405, Term 062. Design & Modeling of Digital Systems. HW# 1 Solution. Due date: Wednesday, March. 14
COE 405, Term 062 Design & Modeling of Digital Systems HW# 1 Solution Due date: Wednesday, March. 14 Q.1. Consider the 4-bit carry-look-ahead adder (CLA) block shown below: A 3 -A 0 B 3 -B 0 C 3 4-bit
More informationFederal Urdu University of Arts, Science and Technology, Islamabad VLSI SYSTEM DESIGN. Prepared By: Engr. Yousaf Hameed.
VLSI SYSTEM DESIGN Prepared By: Engr. Yousaf Hameed Lab Engineer BASIC ELECTRICAL & DIGITAL SYSTEMS LAB DEPARTMENT OF ELECTRICAL ENGINEERING VLSI System Design 1 LAB 01 Schematic Introduction to DSCH and
More informationCCE 3202 Advanced Digital System Design
CCE 3202 Advanced Digital System Design Lab Exercise #2 Introduction You will use Xilinx Webpack v9.1 to allow the synthesis and creation of VHDLbased designs. This lab will outline the steps necessary
More informationLecture 4: Modeling in VHDL (Continued ) EE 3610 Digital Systems
EE 3610: Digital Systems 1 Lecture 4: Modeling in VHDL (Continued ) Sequential Statements Use Process process (sensitivity list) variable/constant declarations Sequential Statements end process; 2 Sequential
More informationCOE 405 Design Methodology Based on VHDL
COE 405 Design Methodology Based on VHDL Dr. Aiman H. El-Maleh Computer Engineering Department King Fahd University of Petroleum & Minerals Outline Elements of VHDL Top-Down Design Top-Down Design with
More informationDESCRIPTION OF DIGITAL CIRCUITS USING VHDL
DESCRIPTION OF DIGITAL CIRCUITS USING VHDL Combinatinal circuits Sequential circuits Design organization. Generic design Iterative operations Authors: Luis Entrena Arrontes, Celia López, Mario García,
More informationQUESTION BANK FOR TEST
CSCI 2121 Computer Organization and Assembly Language PRACTICE QUESTION BANK FOR TEST 1 Note: This represents a sample set. Please study all the topics from the lecture notes. Question 1. Multiple Choice
More informationCMPT 250: Computer Architecture. Using LogicWorks 5. Tutorial Part 1. Somsubhra Sharangi
CMPT 250: Computer Architecture Using LogicWorks 5 Tutorial Part 1 Somsubhra Sharangi What is VHDL? A high level language to describe digital circuit Different that a programming language ( such as Java)
More informationCOVER SHEET: Total: Regrade Info: 5 (14 points) 7 (15 points) Midterm 1 Spring 2012 VERSION 1 UFID:
EEL 4712 Midterm 1 Spring 2012 VERSION 1 Name: UFID: IMPORTANT: Please be neat and write (or draw) carefully. If we cannot read it with a reasonable effort, it is assumed wrong. As always, the best answer
More informationDIGITAL LOGIC WITH VHDL (Fall 2013) Unit 6
DIGITAL LOGIC WITH VHDL (Fall 2013) Unit 6 FINITE STATE MACHINES (FSMs) Moore Machines Mealy Machines FINITE STATE MACHINES (FSMs) Classification: Moore Machine: Outputs depend only on the current state
More informationWritten exam for IE1204/5 Digital Design Thursday 29/
Written exam for IE1204/5 Digital Design Thursday 29/10 2015 9.00-13.00 General Information Examiner: Ingo Sander. Teacher: William Sandqvist phone 08-7904487 Exam text does not have to be returned when
More informationEXPERIMENT #8: BINARY ARITHMETIC OPERATIONS
EE 2 Lab Manual, EE Department, KFUPM EXPERIMENT #8: BINARY ARITHMETIC OPERATIONS OBJECTIVES: Design and implement a circuit that performs basic binary arithmetic operations such as addition, subtraction,
More informationVHDL And Synthesis Review
VHDL And Synthesis Review VHDL In Detail Things that we will look at: Port and Types Arithmetic Operators Design styles for Synthesis VHDL Ports Four Different Types of Ports in: signal values are read-only
More informationCOVER SHEET: Total: Regrade Info: 5 (5 points) 2 (8 points) 6 (10 points) 7b (13 points) 7c (13 points) 7d (13 points)
EEL 4712 Midterm 2 Spring 2011 VERSION 1 Name: UFID: Sign your name here if you would like for your test to be returned in class: IMPORTANT: Please be neat and write (or draw) carefully. If we cannot read
More informationWhat Is VHDL? VHSIC (Very High Speed Integrated Circuit) Hardware Description Language IEEE 1076 standard (1987, 1993)
What Is VHDL? VHSIC (Very High Speed Integrated Circuit) Hardware Description Language IEEE 1076 standard (1987, 1993) Only possible to synthesize logic from a subset of VHDL Subset varies according to
More informationTest Benches - Module 8
Test Benches Module 8 Jim Duckworth, WPI 1 Overview We have concentrated on VHDL for synthesis Can also use VHDL as a test language Very important to conduct comprehensive verification on your design To
More informationDeclarations of Components and Entities are similar Components are virtual design entities entity OR_3 is
Reserved Words component OR_3 port (A,B,C: in bit; Z: out bit); end component ; Reserved Words Declarations of Components and Entities are similar Components are virtual design entities entity OR_3 is
More informationAdvanced Electronics Lab.
College of Engineering Course Book of 2010-2011 Advanced Electronics Lab. Mr. Araz Sabir Ameen M.Sc. in Electronics & Communications ALTERA DE2 Development and Education Board DE2 Package: The DE2 package
More informationDigital Design with FPGAs. By Neeraj Kulkarni
Digital Design with FPGAs By Neeraj Kulkarni Some Basic Electronics Basic Elements: Gates: And, Or, Nor, Nand, Xor.. Memory elements: Flip Flops, Registers.. Techniques to design a circuit using basic
More information11.1. Unit 11. Adders & Arithmetic Circuits
. Unit s & Arithmetic Circuits .2 Learning Outcomes I understand what gates are used to design half and full adders I can build larger arithmetic circuits from smaller building blocks ADDER.3 (+) Register.4
More informationSRI SUKHMANI INSTITUTE OF ENGINEERING AND TECHNOLOGY, DERA BASSI (MOHALI)
SRI SUKHMANI INSTITUTE OF ENGINEERING AND TECHNOLOGY, DERA BASSI (MOHALI) VLSI LAB MANUAL ECE DEPARTMENT Introduction to VHDL It is a hardware description language that can be used to model a digital system
More informationLattice VHDL Training
Lattice Part I February 2000 1 VHDL Basic Modeling Structure February 2000 2 VHDL Design Description VHDL language describes a digital system as a set of modular blocks. Each modular block is described
More informationLABORATORY MANUAL VLSI DESIGN LAB EE-330-F
LABORATORY MANUAL VLSI DESIGN LAB EE-330-F (VI th Semester) Prepared By: Vikrant Verma B. Tech. (ECE), M. Tech. (ECE) Department of Electrical & Electronics Engineering BRCM College of Engineering & Technology
More informationSchedule. ECE U530 Digital Hardware Synthesis. Rest of Semester. Midterm Question 1a
ECE U530 Digital Hardware Synthesis Prof. Miriam Leeser mel@coe.neu.edu November 8, 2006 Midterm Average: 70 Lecture 16: Midterm Solutions Homework 6: Calculator Handshaking HW 6: Due Wednesday, November
More informationDIGITAL SYSTEM DESIGN
DIGITAL SYSTEM DESIGN Prepared By: Engr. Yousaf Hameed Lab Engineer BASIC ELECTRICAL & DIGITAL SYSTEMS LAB DEPARTMENT OF ELECTRICAL ENGINEERING Digital System Design 1 Name: Registration No: Roll No: Semester:
More informationDIGITAL LOGIC DESIGN VHDL Coding for FPGAs Unit 6
DIGITAL LOGIC DESIGN VHDL Coding for FPGAs Unit 6 FINITE STATE MACHINES (FSMs) Moore Machines Mealy Machines Algorithmic State Machine (ASM) charts FINITE STATE MACHINES (FSMs) Classification: Moore Machine:
More informationLecture 12 VHDL Synthesis
CPE 487: Digital System Design Spring 2018 Lecture 12 VHDL Synthesis Bryan Ackland Department of Electrical and Computer Engineering Stevens Institute of Technology Hoboken, NJ 07030 1 What is Synthesis?
More informationHDL PROGRAMING AND EDA TOOLS LABORATORY MANUAL FOR I / II M.TECH VLSI DESIGN (ECE) I - SEMESTER
HDL PROGRAMING AND EDA TOOLS LABORATORY MANUAL FOR I / II M.TECH VLSI DESIGN (ECE) I - SEMESTER DEPT. OF ELECTRONICS AND COMMUNICATION ENGINEERING SIR C.R.REDDY COLLEGE OF ENGINEERING ELURU 534 007 HDL
More informationEEL 4712 Digital Design Test 1 Spring Semester 2007
IMPORTANT: Please be neat and write (or draw) carefully. If we cannot read it with a reasonable effort, it is assumed wrong. COVER SHEET: Problem: Points: 1 (15 pts) 2 (20 pts) Total 3 (15 pts) 4 (18 pts)
More informationDOD, VHSIC ~1986, IEEE stnd 1987 Widely used (competition Verilog) Commercial VHDL Simulators, Synthesizers, Analyzers,etc Student texts with CDROMs
DOD, VHSIC ~1986, IEEE stnd 1987 Widely used (competition Verilog) Commercial VHDL Simulators, Synthesizers, Analyzers,etc Student texts with CDROMs Entity Architecture Blocks CAE Symbol CAE Schematic
More informationExperiment 8 Introduction to VHDL
Experiment 8 Introduction to VHDL Objectives: Upon completion of this laboratory exercise, you should be able to: Enter a simple combinational logic circuit in VHDL using the Quartus II Text Editor. Assign
More informationTutorial 4 HDL. Outline VHDL PROCESS. Modeling Combinational Logic. Structural Description Instantiation and Interconnection Hierarchy
CS3: Hardware Lab Tutorial 4 HDL Outline VHDL basic language concepts basic design methodology Examples A. Sahu Dept of Comp. Sc. & Engg. Indian Institute of Technology Guwahati i i i3 i4 Modeling Combinational
More informationEECE-4740/5740 Advanced VHDL and FPGA Design. Lecture 3 Concurrent and sequential statements
EECE-4740/5740 Advanced VHDL and FPGA Design Lecture 3 Concurrent and sequential statements Cristinel Ababei Marquette University Department of Electrical and Computer Engineering Overview Components hierarchy
More informationCSE 260 Introduction to Digital Logic and Computer Design. Exam 1 Solutions
CSE 6 Introduction to igital Logic and Computer esign Exam Solutions Jonathan Turner /3/4. ( points) raw a logic diagram that implements the expression (B+C)(C +)(B+ ) directly (do not simplify first),
More informationThe University of Alabama in Huntsville Electrical and Computer Engineering CPE/EE 422/522 Spring 2005 Homework #6 Solution
5.3(a)(2), 5.6(c)(2), 5.2(2), 8.2(2), 8.8(2) The University of Alabama in Huntsville Electrical and Computer Engineering CPE/EE 422/522 Spring 25 Homework #6 Solution 5.3 (a) For the following SM chart:
More informationIntroduction to VHDL. Yvonne Avilés Colaboration: Irvin Ortiz Flores Rapid System Prototyping Laboratory (RASP) University of Puerto Rico at Mayaguez
Introduction to VHDL Yvonne Avilés Colaboration: Irvin Ortiz Flores Rapid System Prototyping Laboratory (RASP) University of Puerto Rico at Mayaguez What is VHDL? Very High Speed Integrated Circuit Hardware
More informationEEL 4712 Digital Design Test 1 Spring Semester 2008
IMPORTANT: Please be neat and write (or draw) carefully. If we cannot read it with a reasonable effort, it is assumed wrong. Also, as always, the best answer gets the most points. COVER SHEET: Problem:
More informationEITF35: Introduction to Structured VLSI Design
EITF35: Introduction to Structured VLSI Design Part 1.2.2: VHDL-1 Liang Liu liang.liu@eit.lth.se 1 Outline VHDL Background Basic VHDL Component An example FSM Design with VHDL Simulation & TestBench 2
More informationCSCI Lab 3. VHDL Syntax. Due: Tuesday, week6 Submit to: \\fs2\csci250\lab-3\
CSCI 250 - Lab 3 VHDL Syntax Due: Tuesday, week6 Submit to: \\fs2\csci250\lab-3\ Objectives 1. Learn VHDL Valid Names 2. Learn the presentation of Assignment and Comments 3. Learn Modes, Types, Array,
More informationChapter 6 Combinational-Circuit Building Blocks
Chapter 6 Combinational-Circuit Building Blocks Commonly used combinational building blocks in design of large circuits: Multiplexers Decoders Encoders Comparators Arithmetic circuits Multiplexers A multiplexer
More informationDIGITAL SYSTEM DESIGN
DIGITAL SYSTEM DESIGN Prepared By: Engr. Yousaf Hameed Lab Engineer BASIC ELECTRICAL & DIGITAL SYSTEMS LAB DEPARTMENT OF ELECTRICAL ENGINEERING Digital System Design 1 Name: Registration No: Roll No: Semester:
More informationControl and Datapath 8
Control and Datapath 8 Engineering attempts to develop design methods that break a problem up into separate steps to simplify the design and increase the likelihood of a correct solution. Digital system
More informationSequential Logic - Module 5
Sequential Logic Module 5 Jim Duckworth, WPI 1 Latches and Flip-Flops Implemented by using signals in IF statements that are not completely specified Necessary latches or registers are inferred by the
More informationLecture 1: VHDL Quick Start. Digital Systems Design. Fall 10, Dec 17 Lecture 1 1
Lecture 1: VHDL Quick Start Digital Systems Design Fall 10, Dec 17 Lecture 1 1 Objective Quick introduction to VHDL basic language concepts basic design methodology Use The Student s Guide to VHDL or The
More informationEE261: Intro to Digital Design
2014 EE261: Intro to Digital Design Project 3: Four Bit Full Adder Abstract: This report serves to teach us, the students, about modeling logic and gives a chance to apply concepts from the course to a
More information[VARIABLE declaration] BEGIN. sequential statements
PROCESS statement (contains sequential statements) Simple signal assignment statement
More information6.111 Lecture # 5. Entity section describes input and output. VHDL: Very High speed integrated circuit Description Language:
6.111 Lecture # 5 VHDL: Very High speed integrated circuit Description Language: All VHDL files have two sections: architecture and entity -- Massachusetts (Obsolete) Stoplight Example library ieee; use
More informationECE 448 Lecture 4. Sequential-Circuit Building Blocks. Mixing Description Styles
ECE 448 Lecture 4 Sequential-Circuit Building Blocks Mixing Description Styles George Mason University Reading Required P. Chu, FPGA Prototyping by VHDL Examples Chapter 4, Regular Sequential Circuit Recommended
More informationECE 448 Lecture 3. Combinational-Circuit Building Blocks. Data Flow Modeling of Combinational Logic
ECE 448 Lecture 3 Combinational-Circuit Building Blocks Data Flow Modeling of Combinational Logic George Mason University Reading Required P. Chu, FPGA Prototyping by VHDL Examples Chapter 3, RT-level
More informationControl Unit: Binary Multiplier. Arturo Díaz-Pérez Departamento de Computación Laboratorio de Tecnologías de Información CINVESTAV-IPN
Control Unit: Binary Multiplier Arturo Díaz-Pérez Departamento de Computación Laboratorio de Tecnologías de Información CINVESTAV-IPN Example: Binary Multiplier Two versions Hardwired control Microprogrammed
More informationECE 448 Lecture 3. Combinational-Circuit Building Blocks. Data Flow Modeling of Combinational Logic
ECE 448 Lecture 3 Combinational-Circuit Building Blocks Data Flow Modeling of Combinational Logic George Mason University Reading Required P. Chu, FPGA Prototyping by VHDL Examples Chapter 3, RT-level
More informationDigital Circuit Design and Language. Datapath Design. Chang, Ik Joon Kyunghee University
Digital Circuit Design and Language Datapath Design Chang, Ik Joon Kyunghee University Typical Synchronous Design + Control Section : Finite State Machine + Data Section: Adder, Multiplier, Shift Register
More informationContents. Appendix D VHDL Summary Page 1 of 23
Appendix D VHDL Summary Page 1 of 23 Contents Appendix D VHDL Summary...2 D.1 Basic Language Elements...2 D.1.1 Comments...2 D.1.2 Identifiers...2 D.1.3 Data Objects...2 D.1.4 Data Types...2 D.1.5 Data
More informationTwo HDLs used today VHDL. Why VHDL? Introduction to Structured VLSI Design
Two HDLs used today Introduction to Structured VLSI Design VHDL I VHDL and Verilog Syntax and ``appearance'' of the two languages are very different Capabilities and scopes are quite similar Both are industrial
More informationQuestion Total Possible Test Score Total 100
Computer Engineering 2210 Final Name 11 problems, 100 points. Closed books, closed notes, no calculators. You would be wise to read all problems before beginning, note point values and difficulty of problems,
More information1. Defining and capturing the design of a system. 2. Cost Limitations (low profit margin must sell millions)
What is an Embedded System? A type of computer system ECEN 4856: Embedded System Design Lecture 2: Embedded System Standards Traditional Definitions Limited in hardware and software vs the PC Designed
More informationMulti-valued Logic. Standard Logic IEEE 1164 Type std_ulogic is ( U, uninitialized
Multi-valued Logic Standard Logic IEEE 1164 Type std_ulogic is ( U, uninitialized X, unknown 0, logic 0 1, logic 1 Z, high impedance W, unknown L, logic 0 weak H, logic 1 weak - ); don t care Standard
More informationDigital Fundamentals. Lab 6 2 s Complement / Digital Calculator
Richland College Engineering Technology Rev. 0. Donham Rev. 1 (7/2003) J. Horne Rev. 2 (1/2008) J. radbury Digital Fundamentals CETT 1425 Lab 6 2 s Complement / Digital Calculator Name: Date: Objectives:
More information310/ ICTP-INFN Advanced Tranining Course on FPGA and VHDL for Hardware Simulation and Synthesis 27 November - 22 December 2006
310/1780-10 ICTP-INFN Advanced Tranining Course on FPGA and VHDL for Hardware Simulation and Synthesis 27 November - 22 December 2006 VHDL & FPGA - Session 2 Nizar ABDALLH ACTEL Corp. 2061 Stierlin Court
More informationPACKAGE. Package syntax: PACKAGE identifier IS...item declaration... END PACKAGE [identifier]
Modular Design PACKAGE Package is a collection of : - Type declaration - Component declaration - Constants declaration - Subprograms (functions or procedures) Package is a separate VHDL code consisting
More informationVHDL. VHDL History. Why VHDL? Introduction to Structured VLSI Design. Very High Speed Integrated Circuit (VHSIC) Hardware Description Language
VHDL Introduction to Structured VLSI Design VHDL I Very High Speed Integrated Circuit (VHSIC) Hardware Description Language Joachim Rodrigues A Technology Independent, Standard Hardware description Language
More informationArchitecture des Ordinateurs I
Architecture des Ordinateurs I Part I: VHDL and Logic Design The Language VHDL Paolo.Ienne@epfl.ch EPFL I&C LAP Recommended Books: John F. Wakerly Digital design (3rd edition) Prentice Hall, 21 Peter J.
More informationECE 545 Lecture 8. Data Flow Description of Combinational-Circuit Building Blocks. George Mason University
ECE 545 Lecture 8 Data Flow Description of Combinational-Circuit Building Blocks George Mason University Required reading P. Chu, RTL Hardware Design using VHDL Chapter 7, Combinational Circuit Design:
More informationLecture 3: Modeling in VHDL. EE 3610 Digital Systems
EE 3610: Digital Systems 1 Lecture 3: Modeling in VHDL VHDL: Overview 2 VHDL VHSIC Hardware Description Language VHSIC=Very High Speed Integrated Circuit Programming language for modelling of hardware
More informationVHDL. Official Definition: VHSIC Hardware Description Language VHISC Very High Speed Integrated Circuit
VHDL VHDL Official Definition: VHSIC Hardware Description Language VHISC Very High Speed Integrated Circuit VHDL Alternative (Student Generated) Definition Very Hard Digital Logic language VHDL Design
More informationEE434 ASIC & Digital Systems
EE434 ASIC & Digital Systems VHDL Sequential Processing Spring 2016 Dae Hyun Kim daehyun@eecs.wsu.edu 1 Sequential Statements Sequential statements are executed sequentially. Format ARCHITECTURE architecture_name
More informationECE 545 Lecture 5. Data Flow Modeling in VHDL. George Mason University
ECE 545 Lecture 5 Data Flow Modeling in VHDL George Mason University Required reading P. Chu, RTL Hardware Design using VHDL Chapter 4, Concurrent Signal Assignment Statements of VHDL 2 Types of VHDL Description
More informationThe University of Alabama in Huntsville ECE Department CPE Midterm Exam Solution Spring 2016
The University of Alabama in Huntsville ECE Department CPE 526 01 Midterm Exam Solution Spring 2016 1. (15 points) Write a VHDL function that accepts a std_logic_vector of arbitrary length and an integer
More informationEITF35: Introduction to Structured VLSI Design
EITF35: Introduction to Structured VLSI Design Part 2.2.2: VHDL-3 Liang Liu liang.liu@eit.lth.se 1 Outline Inference of Basic Storage Element Some Design Examples DFF with enable Counter Coding Style:
More informationSEQUENTIAL STATEMENTS
SEQUENTIAL STATEMENTS Sequential Statements Allow to describe the behavior of a circuit as a sequence of related events Can be used to model, simulate and synthesize: Combinational logic circuits Sequential
More information