Synopsys vcs commands for verilog compilation summary of commands to compile, run, and generate code coverage report for verilog design using synopsys vcs. Attributes optimization constraints design constraints. Filter by license to discover only free or open source alternatives. We use synopsys design compiler dc to synthesize verilog rtl models into a gatelevel netlist where all of the gates are from the standard cell library. Constraining designs for synthesis and timing analysis. Tags objectoriented programming, computer file, sdc, synopsys design constraints. This list contains a total of apps similar to synopsys design compiler. You use constraints to ensure that your design meets its performance goals and pin assignment requirements. I believe that timing constraints are coming upon us as a major area of design. Explains which constraints command to use for ease of maintenance and reuse. Rtltogates synthesis using synopsys design compiler. The synopsys design compiler, ic compiler, and primetime tools use the. Synopsis design constraints how is synopsis design. These operations can cause many pages of informational output which a regular synopsys shell will not page.
Microsemi supports a variation of the sdc format for constraints management. An introduction to the synopsys design compiler prepared by li li for ece 368 instructor. Pdf constraining designs for synthesis and timing analysis. Using the synopsys design constraints format application. This list contains a total of 5 apps similar to synopsys vcs. Synopsys vcs commands for verilog compilation binarypirates. The following example provides the simplest sdc file content that constrains all clock ports and pins, input io paths, and output io paths for a design. Shortly, the setup file defines the behavior of the tool and is.
In particular, we will concentrate on the synopsys tool called the design compiler. Technical brief using synopsys design constraints sdc. Clocks and clock delays are necessary to constraint a design. Synopsys design compiler dc basic tutorial vivek gupta. Synopsys timing constraints and optimization user guide version d2010. Synopsys design compiler fpga and xilinx virtex4 fpgas. Technical brief using synopsys design constraints sdc with designer this technical brief describes the commands and provides usage examples of synopsys design constraints sdc format with actels designer series software. Most delays, especially for synchronous designs, are dependent on the clock. Verification and generation of constraints design and reuse. Hdl description translation intermediate representation area, speed. As todays designs become more complex, so too do their constraints.
The table below shows a list of commonly used commands. Sdc synopsys design constraints the rules that are written are referred to as constraints and are essential to meet designs goal in terms of area, timing and power to obtain the best possible implementation of a circuit. Synopsys design compiler free download 16539 programs ebooks compiler ebooks compiler creates high quality professional ebooks, reports, or interactive multimedia courses all in a matter of minutes using seven easy steps. Describes timing and logic constraints that influence how the compiler implements your design, such as pin assignments, device options, logic options, and timing constraints. Synopsys design compiler tutorial ece 551 design and synthesis of digital systems.
Explains fundamental concepts and provides exact command syntax. Readers will learn to maximize performance of their ic designs. Using synopsys design constraints sdc with designer 2 timing constraint commands design constraint command examples are listed in table 2. The company delivers technologyleading semiconductor design and verification platforms and ic manufacturing software products to the global electronics market, enabling the development and production of complex systemsonchips socs.
A practical guide to synopsys design constraints sdc. Well see how to use synopsys hspice simulation, synopys hercules design rule check drc and layout vs schematic tools lvs, and finally. This article highlights and discusses the importance of constraint validation early in the design. Tseng, ares lab 2008 summer training course of design compiler. Synopsys design compiler alternatives and similar software. Smartfusion2igloo2 fpga timing constraints for enhanced. Hi sini, thanks for touching a basic topic, want to request if you can add following data also, probably it might help to understand this topic much better. Opentimer shell is a powerful command line tool to perform interactive analysis. Besides all the source files, we need to write one more file named as run you can name it as you like. Synopsys introduces galaxy constraint analyzer to improve. Etile hard ip intel stratix 10 design examples user guide. I have been using synopsys design compiler for the last two years, but i have been. In the cvl or cesca cluster type the following commands to start the gui version.
A circuit that performs one or more logical functions. Introduction to synopsys synthesis before we take a closer look at specific synthesis constraints, lets define some synopsys design compiler terminology and commands that well need for future lectures, the assignmentslabs, and ultimately for synthesizing our design project. Use the interface planner to prototype interface implementations, plan clocks, and quickly define a legal device floorplan. Coverage includes key aspects of the design flow impacted by timing constraints, including synthesis, static timing analysis and placement and routing. This gives designers a signoffcorrelated view of the constraints ahead of each step of the design implementation process.
Figure 410 shows the paths between the mss mac and the serdes in the fabric. Synopsys design constraints sdc is a tcl based format used by synopsys tools to specify the design intent, including the timing and area constraints for a design. The design compiler is the core synthesis engine of synopsys synthesis product family. The format of these files are open source standard provided by synopsys and is. Actel designer will take into account these constraints, therefore allowing the same sets of constraints to drive synthesis, timing analysis, and place and route. Logic synthesis with synopsys design compiler formal hardware verification coen7501 summer 2012. The program otshell can be found in the folder bin after you compile opentimer. Galaxy constraint analyzers ability to deliver comprehensive constraint analysis on 10milliongate designs in a matter of minutes, combined with a unique set of interactive analysis and debug capabilities, helps designers. In addition, the entire asic design flow methodology targeted for vdsm verydeepsubmicron. Note that this tutorial is by no means comprehensive. Synopsis design constraints how is synopsis design constraints abbreviated. This lecture explains how to specify timing constraints in the form of sdc synopsys design constraint commands.
Alternatives to synopsys design compiler for windows, linux, software as a service saas, mac, web and more. With the widely used synopsys design constraint sdc format integrated into designer, users have another option to set timing constraints in their design. Synopsys design compiler to elaborate rtl, set optimization constraints, synthesize to gates, and prepare various area and timing reports. Clock handling in multimode, like if a clock is having three or four frequency target like. Using the synopsys design constraints format 1 synopsys design constraints sdc is a format used to specify the design intent, including the timing, power, and area constraints for a design. Synopsys tutorial part 1 introduction to synopsys custom. Synopsys design compiler dc basic tutorial youtube. Low latency ethernet 10g mac intel arria 10 fpga ip design. Synopsys is at the forefront of smart everything with the worlds most advanced tools for silicon chip design, verification, ip integration, and application security testing. Using synopsys design constraints sdc with designer. Synopsys eda tools, semiconductor ip and application. Synopsys design constraints how is synopsys design. Synopsys timing constraints and optimization user guide. Operating conditions commercial industrial military attributes operating environment operating conditions.
It is also the easiest way to get your first timing report off the ground. Our technology helps customers innovate from silicon to software, so they can deliver smart, secure everything. Contribute to leohecksublime synopsysconstraints development by creating an account on github. Concepts needed for this book serves as a handson guide to timing constraints in integrated circuit design. Design constraint command examples are listed in table 2. Using the synopsys design constraints format application note version 2. In addition to the synopsys 90nm library les, the place and route tools require two additional inputs.
A large system usually consists of several subsystems, so the timing context of the design needs be specified. Chapter 3 actelsynopsys coding considerations describes actelsynopsys specific hdl coding techniques. You can use the following types of sdc commands when creating sdc constraints for smartfusion2 and igloo2 designs. An ideal clock incurs no delay through the clock network. Some of the commands are still not covered in this book.
Sdc is a widely used format that allows designers to utilize the same sets of constraints to drive synthesis, timing. Chapter 4 synthesis constraints contains descriptions, examples, and procedures for using design constraints on actel designs. Hi all, what questions might be asked in the interview for synopsys design compiler engineer specially questions related to the flows. Actel tools use a subset of the sdc format to capture supported timing constraints. A synthesis tool takes an rtl hardware description and a standard cell library as input and produces a gatelevel netlist as output. Setup file is used for initializing design parameters and variables, declare design libraries, and so on. These design examples generate the necessary files to simulate, compile, and test the designs in hardware.
Rtltogates synthesis using synopsys design compiler 6. A practical guide to synopsys design constraints sdc gangadharan, sridhar, churiwala, sanjay on. Both of these les are generated by the synthesis tool. The designer software supports both timing and physical constraints. A practical guide to synopsys design constraints sdc sridhar. I am trying to design a pipelined floating point mac unit and my aim is to. Before we take a closer look at specific synthesis constraints, lets define some synopsys design compiler terminology and commands that well need for future lectures, the assignmentslabs, and ultimately for synthesizing our design project. You will also learn how to read the various dc text reports and how to use the graphical synopsys design vision tool to visualize the synthesized design. The synopsys design constraint sdc is a tclbased format used by. Microsemi corporate headquarters one enterprise, aliso viejo, ca 92656 usa within the usa. Using the synopsys design constraints format application note. Cic training manual logic synthesis with design compiler, july, 2006 tsmc 0 18um process 1 8volt sagextm stand cell library databook september 2003 t.
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