Allegro Front to Back User Guide

Allegro Front-to-Back User Guide Capturing Logical Design October 2019 25 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. Creating Project Using OrCAD Capture OrCAD Capture is a schematic design tool set for the Windows environment. With this tool, you can draft schematics and produce connectivity and simulation information for printed circuit boards and programmable logic designs. It is fully integrated with OrCAD PSpice and other PCB board layout tool set. A project in OrCAD Capture refers to the collection of design file, part libraries, report files, and other associated materials that exist, as a set, within the environment. When you create a project using OrCAD Capture, a design is immediately created with a project file .opj which contains details about the design. However, you also have the option of creating a design without first creating a project. The project file consists of: ■ Pointers for interacting with the design file (.dsn) file ■ Other referenced files ■ Outputs reports associated with the design file ■ Information about libraries and VHDL files. When the project is first created, the project manager creates a design file with the same name as the project. It also creates a schematic folder within the design file, and a schematic page within the folder. You can create a new design to replace the design created by the project manager. For more information about project creation and setup in OrCAD Capture, refer to the Working with Projects section of OrCAD Capture User Guide.

• Cover
• c contents - Contents
• Preface
• About the Front-to-Back Flow
• How This Book is Organized
• Creating and Managing Libraries
• Allegro Front-end Tools Libraries
• Library Structure
• Creating and Managing Libraries
• OrCAD Libraries
• Capturing Logical Design
• Creating Project Using Allegro Tools
• System Capture
• You can also perform other page manipulation operations, such as creating a new page or deleting an existing page from the Project viewer. You can drag and move the pages up and down to change their order in the Project viewer.
• Allegro Design Entry HDL
• Creating Project Using OrCAD Capture
• Creating a Schematic
• Designing Schematic Using System Capture
• Creating Schematic Using OrCAD Capture
• Capturing Logical Designs using DE-HDL
• Capturing Logical Design Constraints
• Why Constraint Manager?
• Using Constraint Manager with Design Capture Tools
• All the constraints are stored in the Constraint Manager Database (CMDB) and saved in the dictionary and constraints file designname.dcf.
• Constraints in System Capture
• Capturing Constraints in Design Entry HDL
• Capturing Constraints in OrCAD Capture
• Creating Variants of Your Design
• Managing Variants in System Capture
• Creating Variants using Variant Editor
• Getting Logical Design Ready for Physical Layout
• Preparing a System Capture Design for Physical Layout
• Preparing a DE-HDL Design for Physical Layout
• Exporting a DE-HDL Design
• Forward Mode
• Preparing an OrCAD Capture Design for Physical Layout
• Exporting an OrCAD Capture
• Annotating the Design
• Packaging Your Design (Advanced)
• Generating a Bill of Materials
• Updating the Schematic With the Changes in the Board
• Passing Properties from the Layout to Schematic
• Designing Layout
• Physical Layout using OrCAD PCB Editor
• Creating a Board Outline
• Creating Symbols and Padstacks
• Importing Logic
• Defining Layers
• Defining Constraints
• Placement
• Routing
• Design Synchronization
• Physical Layout using OrCAD Capture
• Preparing the Schematic for Layout
• Property Flow from Capture to PCB Editor
• Generating Initial Board File
• Backannotation from PCB Editor
• Running Design Rules Check - Physical Rules
• Capturing Physical Constraints
• Using Constraint Manager with PCB Editor
• Synchronizing Schematics and Boards
• Need for Synchronization
• Design Synchronization Tasks
• Feedback Mode