Xilinx Synthesis and Verification Design Guide
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Digital Systems Modeling Chapter 2 VHDL-Based Design
Digital Systems Modeling Chapter 2 VHDL-Based Design Alain Vachoux Microelectronic Systems Laboratory [email protected] Digital Systems Modeling Chapter 2: VHDL-Based Design Chapter 2: Table of contents ♦ VHDL overview ♦ Synthesis with VHDL ♦ Test bench models & verification techniques A. Vachoux, 2004-2005 Digital Systems Modeling Chapter 2: VHDL-Based Design - 2 A. Vachoux 2004-2005 2-2 Digital Systems Modeling Chapter 2: VHDL-Based Design VHDL highlights (1/2) ♦ Hardware description language • Digital hardware systems • Modeling, simulation, synthesis, documentation • IEEE standard 1076 (1987, 1993, 2002) ♦ Originally created for simulation • IEEE standards 1164 (STD_LOGIC) and 1076.4 (VITAL) ♦ Further adapted to synthesis • Language subset • IEEE standards 1076.3 (packages) and 1076.6 (RTL semantics) A. Vachoux, 2004-2005 Digital Systems Modeling Chapter 2: VHDL-Based Design - 3 A. Vachoux 2004-2005 2-3 Digital Systems Modeling Chapter 2: VHDL-Based Design VHDL highlights (2/2) ♦ Application domain (abstraction levels): Functional -> logic ♦ Modularity • 5 design entities: entity, architecture, package declaration and body, configuration • Separation of interface from implementation • Separate compilation ♦ Strong typing • Every object has a type • Type compatibility checked at compile time ♦ Extensibility: User-defined types ♦ Model of time • Discrete time, integer multiple of some MRT (Minimum Resolvable Time) ♦ Event-driven simulation semantics A. Vachoux, 2004-2005 Digital Systems Modeling Chapter 2: VHDL-Based Design - 4 A. Vachoux 2004-2005 2-4 Digital Systems Modeling Chapter 2: VHDL-Based Design VHDL-based design flow Editor (text or graphic) Test bench models VHDL packages RTL model Logic simulation Logic/RTL Constraints synthesis (area, timing, power) VHDL VITAL standard cell Gate-level modeld netlist Standard cell library SDF file Place & route Delay Layout extraction A. -
AN 307: Altera Design Flow for Xilinx Users Supersedes Information Published in Previous Versions
Altera Design Flow for Xilinx Users June 2005, ver. 5.0 Application Note 307 Introduction Designing for Altera® Programmable Logic Devices (PLDs) is very similar, both in concept and in practice, to designing for Xilinx PLDs. In most cases, you can simply import your register transfer level (RTL) into Altera’s Quartus® II software and begin compiling your design to the target device. This document will demonstrate the similar flows between the Altera Quartus II software and the Xilinx ISE software. For designs, which the designer has included Xilinx CORE generator modules or instantiated primitives, the bulk of this document guides the designer in design conversion considerations. Who Should Read This Document The first and third sections of this application note are designed for engineers who are familiar with the Xilinx ISE software and are using Altera’s Quartus II software. This first section describes the possible design flows available with the Altera Quartus II software and demonstrates how similar they are to the Xilinx ISE flows. The third section shows you how to convert your ISE constraints into Quartus II constraints. f For more information on setting up your design in the Quartus II software, refer to the Altera Quick Start Guide For Quartus II Software. The second section of this application note is designed for engineers whose design code contains Xilinx CORE generator modules or instantiated primitives. The second section provides comprehensive information on how to migrate a design targeted at a Xilinx device to one that is compatible with an Altera device. If your design contains pure behavioral coding, you can skip the second section entirely. -
Publication Title 1-1962
publication_title print_identifier online_identifier publisher_name date_monograph_published_print 1-1962 - AIEE General Principles Upon Which Temperature 978-1-5044-0149-4 IEEE 1962 Limits Are Based in the rating of Electric Equipment 1-1969 - IEEE General Priniciples for Temperature Limits in the 978-1-5044-0150-0 IEEE 1968 Rating of Electric Equipment 1-1986 - IEEE Standard General Principles for Temperature Limits in the Rating of Electric Equipment and for the 978-0-7381-2985-3 IEEE 1986 Evaluation of Electrical Insulation 1-2000 - IEEE Recommended Practice - General Principles for Temperature Limits in the Rating of Electrical Equipment and 978-0-7381-2717-0 IEEE 2001 for the Evaluation of Electrical Insulation 100-2000 - The Authoritative Dictionary of IEEE Standards 978-0-7381-2601-2 IEEE 2000 Terms, Seventh Edition 1000-1987 - An American National Standard IEEE Standard for 0-7381-4593-9 IEEE 1988 Mechanical Core Specifications for Microcomputers 1000-1987 - IEEE Standard for an 8-Bit Backplane Interface: 978-0-7381-2756-9 IEEE 1988 STEbus 1001-1988 - IEEE Guide for Interfacing Dispersed Storage and 0-7381-4134-8 IEEE 1989 Generation Facilities With Electric Utility Systems 1002-1987 - IEEE Standard Taxonomy for Software Engineering 0-7381-0399-3 IEEE 1987 Standards 1003.0-1995 - Guide to the POSIX(R) Open System 978-0-7381-3138-2 IEEE 1994 Environment (OSE) 1003.1, 2004 Edition - IEEE Standard for Information Technology - Portable Operating System Interface (POSIX(R)) - 978-0-7381-4040-7 IEEE 2004 Base Definitions 1003.1, 2013 -
Implementation, Verification and Validation of an Openrisc-1200
(IJACSA) International Journal of Advanced Computer Science and Applications, Vol. 10, No. 1, 2019 Implementation, Verification and Validation of an OpenRISC-1200 Soft-core Processor on FPGA Abdul Rafay Khatri Department of Electronic Engineering, QUEST, NawabShah, Pakistan Abstract—An embedded system is a dedicated computer system in which hardware and software are combined to per- form some specific tasks. Recent advancements in the Field Programmable Gate Array (FPGA) technology make it possible to implement the complete embedded system on a single FPGA chip. The fundamental component of an embedded system is a microprocessor. Soft-core processors are written in hardware description languages and functionally equivalent to an ordinary microprocessor. These soft-core processors are synthesized and implemented on the FPGA devices. In this paper, the OpenRISC 1200 processor is used, which is a 32-bit soft-core processor and Fig. 1. General block diagram of embedded systems. written in the Verilog HDL. Xilinx ISE tools perform synthesis, design implementation and configure/program the FPGA. For verification and debugging purpose, a software toolchain from (RISC) processor. This processor consists of all necessary GNU is configured and installed. The software is written in C components which are available in any other microproces- and Assembly languages. The communication between the host computer and FPGA board is carried out through the serial RS- sor. These components are connected through a bus called 232 port. Wishbone bus. In this work, the OR1200 processor is used to implement the system on a chip technology on a Virtex-5 Keywords—FPGA Design; HDLs; Hw-Sw Co-design; Open- FPGA board from Xilinx. -
Designcon 2004 VHDL-200X and the Future of VHDL
DesignCon 2004 VHDL-200X and the Future of VHDL Jim Lewis, SynthWorks [email protected] Stephen Bailey, Mentor Graphic’s Model Technology Group Erich Marschner, Cadence Design Systems J. Bhasker, eSilicon Corp. Peter Ashenden, Ashenden Designs Pty. Ltd. Abstract VHDL is a critical language for RTL design and is a major component of the $200+ million RTL simulation market1. Many users prefer to use VHDL for RTL design as the language continues to provide desired characteristics in design safety, flexibility and maintainability. While VHDL has provided significant value for digital designers since 1987, it has had only one significant language revision in 1993. It has taken many years for design state-of-practice to catch-up to and, in some cases, surpass the capabilities that have been available in VHDL for over 15 years. Last year, the VHDL Analysis and Standardization Group (VASG), which is responsible for the VHDL standard, received clear indication from the VHDL community that it was now time to look at enhancing VHDL. In response to the user community, VASG initiated the VHDL-200x project2. VHDL-200x will result in at least two revisions of the VHDL standard. The first revision is planned to be completed next year (2004) and will include a C language interface (VHPI); a collection of high user value enhancements to improve designer productivity and modeling capability and potential inclusion of assertion-based verification and testbench modeling enhancements. A second revision is planned to follow about two years later. This paper summarizes VHDL-200X enhancements proposed for the first revision of VHDL. -
RTL Design and IP Generation Tutorial
RTL Design and IP Generation Tutorial PlanAhead Design Tool UG675(v14.5) April 10, 2013 This tutorial document was last validated using the following software version: ISE Design Suite 14.5 If using a later software version, there may be minor differences between the images and results shown in this document with what you will see in the Design Suite.Suite. Notice of Disclaimer The information disclosed to you hereunder (the "Materials") is provided solely for the selection and use of Xilinx products. To the maximum extent permitted by applicable law: (1) Materials are made available "AS IS" and with all faults, Xilinx hereby DISCLAIMS ALL WARRANTIES AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and (2) Xilinx shall not be liable (whether in contract or tort, including negligence, or under any other theory of liability) for any loss or damage of any kind or nature related to, arising under, or in connection with, the Materials (including your use of the Materials), including for any direct, indirect, special, incidental, or consequential loss or damage (including loss of data, profits, goodwill, or any type of loss or damage suffered as a result of any action brought by a third party) even if such damage or loss was reasonably foreseeable or Xilinx had been advised of the possibility of the same. Xilinx assumes no obligation to correct any errors contained in the Materials or to notify you of updates to the Materials or to product specifications. You may not reproduce, modify, distribute, or publicly display the Materials without prior written consent. -
Introduction
Introduction © Sudhakar Yalamanchili, Georgia Institute of Technology, 2006 (1) VHDL • What is VHDL? V H I S C Æ Very High Speed Integrated Circuit Hardware Description IEEE Standard 1076-1993 Language (2) 1 History of VHDL • Designed by IBM, Texas Instruments, and Intermetrics as part of the DoD funded VHSIC program • Standardized by the IEEE in 1987: IEEE 1076-1987 • Enhanced version of the language defined in 1993: IEEE 1076-1993 • Additional standardized packages provide definitions of data types and expressions of timing data – IEEE 1164 (data types) – IEEE 1076.3 (numeric) – IEEE 1076.4 (timing) (3) Traditional vs. Hardware Description Languages • Procedural programming languages provide the how or recipes – for computation – for data manipulation – for execution on a specific hardware model • Hardware description languages describe a system – Systems can be described from many different points of view • Behavior: what does it do? • Structure: what is it composed of? • Functional properties: how do I interface to it? • Physical properties: how fast is it? (4) 2 Usage • Descriptions can be at different levels of abstraction – Switch level: model switching behavior of transistors – Register transfer level: model combinational and sequential logic components – Instruction set architecture level: functional behavior of a microprocessor • Descriptions can used for – Simulation • Verification, performance evaluation – Synthesis • First step in hardware design (5) Why do we Describe Systems? • Design Specification – unambiguous definition -
Small Soft Core up Inventory ©2019 James Brakefield Opencore and Other Soft Core Processors Reverse-U16 A.T
tool pip _uP_all_soft opencores or style / data inst repor com LUTs blk F tool MIPS clks/ KIPS ven src #src fltg max max byte adr # start last secondary web status author FPGA top file chai e note worthy comments doc SOC date LUT? # inst # folder prmary link clone size size ter ents ALUT mults ram max ver /inst inst /LUT dor code files pt Hav'd dat inst adrs mod reg year revis link n len Small soft core uP Inventory ©2019 James Brakefield Opencore and other soft core processors reverse-u16 https://github.com/programmerby/ReVerSE-U16stable A.T. Z80 8 8 cylcone-4 James Brakefield11224 4 60 ## 14.7 0.33 4.0 X Y vhdl 29 zxpoly Y yes N N 64K 64K Y 2015 SOC project using T80, HDMI generatorretro Z80 based on T80 by Daniel Wallner copyblaze https://opencores.org/project,copyblazestable Abdallah ElIbrahimi picoBlaze 8 18 kintex-7-3 James Brakefieldmissing block622 ROM6 217 ## 14.7 0.33 2.0 57.5 IX vhdl 16 cp_copyblazeY asm N 256 2K Y 2011 2016 wishbone extras sap https://opencores.org/project,sapstable Ahmed Shahein accum 8 8 kintex-7-3 James Brakefieldno LUT RAM48 or block6 RAM 200 ## 14.7 0.10 4.0 104.2 X vhdl 15 mp_struct N 16 16 Y 5 2012 2017 https://shirishkoirala.blogspot.com/2017/01/sap-1simple-as-possible-1-computer.htmlSimple as Possible Computer from Malvinohttps://www.youtube.com/watch?v=prpyEFxZCMw & Brown "Digital computer electronics" blue https://opencores.org/project,bluestable Al Williams accum 16 16 spartan-3-5 James Brakefieldremoved clock1025 constraint4 63 ## 14.7 0.67 1.0 41.1 X verilog 16 topbox web N 4K 4K N 16 2 2009 -
Introduction to Verilog
Introduction to Verilog Some material adapted from EE108B Introduction to Verilog presentation In lab, we will be using a hardware description language (HDL) called Verilog. Writing in Verilog lets us focus on the high‐level behavior of the hardware we are trying to describe rather than the low‐level behavior of every single logic gate. Design Flow Verilog Source Synthesis and Implementation Tools (Xilinx ISE) Gate‐level Netlist Place and Route Tools (Xilinx ISE) Verilog Source with Testbench FPGA Bitstream ModelSim Compiler Bitstream Download Tool (ChipScope) Simulation FPGA ModelSim SE Xilinx XC2VP30 Figure 1. Simulation flow (left) and synthesis flow (right) The design of a digital circuit using Verilog primarily follows two design flows. First, we feed our Verilog source files into a simulation tool, as shown by the diagram on the left. The simulation tool simulates in software the actual behavior of the hardware circuit for certain input conditions, which we describe in a testbench. Because compiling our Verilog for the simulation tool is relatively fast, we primarily use simulation tools when we are testing our design. When we are confident that design is correct, we then use a hardware synthesis tool to turn our high‐level Verilog code to a low‐level gate netlist. A mapping tool then maps the netlist to the applicable resources on the device we are targeting—in our case, a field programmable grid array (FPGA). Finally, we download a bitstream describing the way the FPGA should be reconfigured onto the FPGA, resulting in an actual digital circuit. Philosophy Verilog has a C‐like syntax. -
Starting Active-HDL As the Default Simulator in Xilinx
7/29/13 Support - Resources - Documentation - Application Notes - Aldec 日本語 Sign In | Register Search aldec.com SOLUTIONS PRODUCTS EVENTS COMPANY SUPPORT DOWNLOADS Home Support Resources Documentation Application Notes RESOURCES Starting Active-HDL as the Default Simulator in Xilinx ISE « Prev | Next » Documentation Application Notes Introduction FAQ This document describes how to start Active-HDL simulator from Xilinx ISE Project Navigator to run behavioral and timing simulations. This Manuals application note has been verified on Active-HDL 9.1 and Xilinx ISE 13.4. This interface allows users to run mixed VHDL, Verilog and White Papers System Verilog (design ) simulation using Active-HDL as a default simulator. Tutorials Installing Xilinx libraries in Active-HDL Multimedia Demonstration In order to run the simulation successfully, depending on the design both VHDL and Verilog libraries for Xilinx may have to be installed in Videos Active-HDL. You can check what libraries are currently installed in your Active-HDL using Library Manager tool. You can access the Library Manager from the menu View>Library Manger>. Recorded Webinars You can install precompiled libraries in multiple ways: 1. If you are using Active-HDL DVD to install the software, during the installation, you will get the option to select and install the Xilinx libraries 2. If you have received a web link to download Active-HDL, on the same page you will find the links to download Xilinx libraries. 3. At any time you can visit the update center to download the latest Xilinx libraries at http://www.aldec.com/support Set Active-HDL as Simulator in Xilinx Project Navigator After creating a project, open your Xilinx project in ISE Project Navigator. -
Appendices Table of Contents
Appendices Table of Contents Appendix A VHDL Primer VHDL Standards History. A-1 IEEE Standard 1076. A-1 IEEE Standard 1164. A-2 IEEE Standard 1076.3 (Numeric Standard). A-2 IEEE Standard 1076.4 (VITAL) . A-3 Learning VHDL . A-3 A Simple Example . A-3 Entity Declarations . A-4 Architecture Declarations . A-5 Data Types. A-6 Design Units . A-7 Levels of Abstraction . A-9 Sample Circuit . A-11 Comparator (Dataflow) . A-11 Barrel Shifter (Entity) . A-14 Signals and Variables . A-18 Using a Procedure . A-18 Structural VHDL. A-20 Design Hierarchy . A-20 Test Benches. A-21 Sample Test Bench . A-22 Conclusion . A-23 Examples Gallery . A-24 Using Type Version Functions . A-24 Design Description. A-24 Test Bench. A-27 Describing a State Machine . A-28 Design Description. A-28 Test Bench. A-31 Reading and Writing from Files . A-33 Design Description. A-34 Test Bench. A-35 Multisim 2001 User Guide i Appendix B.1 Verilog Primer Introduction . .B.1-1 What is Verilog? . B.1-2 What is VeriWell? . B.1-2 Why Use Verilog HDL? . B.1-3 The Verilog Language . .B.1-4 A First Verilog Program . B.1-4 Lexical Conventions . B.1-6 Program Structure . B.1-7 Data Types. B.1-10 Physical Data Types . .B.1-10 Abstract Data Types . .B.1-11 Operators . B.1-12 Binary Arithmetic Operators. .B.1-12 Unary Arithmetic Operators . .B.1-12 Relational Operators . .B.1-12 Logical Operators . .B.1-12 Bitwise Operators . .B.1-13 Unary Reduction Operators . -
Stratix II Vs. Virtex-4 Power Comparison & Estimation Accuracy
White Paper Stratix II vs. Virtex-4 Power Comparison & Estimation Accuracy Introduction This document compares power consumption and power estimation accuracy for Altera® Stratix® II FPGAs and Xilinx Virtex-4 FPGAs. The comparison addresses all components of power: core dynamic power, core static power, and I/O power. This document uses bench-measured results to compare actual dynamic power consumption. To compare power estimation accuracy, the analysis uses the vendor-recommended power estimation software tools. The summary of these comparisons are: Altera’s Quartus® II PowerPlay power analyzer tool is accurate (to within 20%), while Xilinx’s tools are significantly less accurate. Stratix II devices exhibit lower dynamic power than Virtex-4 devices, resulting in total device power that is equal. Having an accurate FPGA power estimate is important to avoid surprises late in the design and prototyping phase. Inaccurate estimates can be costly and cause design issues, including: board re-layout, changes to power-management circuitry, changes cooling solution, unreliable FPGA operation, undue heating of other components, and changes to the FPGA design. Furthermore, without accurate power estimates, it is impossible for the designer and FPGA CAD software to optimize design power. This white paper contains the following sections: Components of total device power Power estimation and measurement methodology Core dynamic power comparison – power tool accuracy and bench measurements Core Static power comparison I/O power comparison Total device power summary For competitive comparisons on performance and density between Stratix II and Virtex-4 devices, refer to the following white papers from the Altera web site: Stratix II vs.