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    The Verification Academy offers users multiple entry points to find the information they need. One of these entry points is through Topic collections. These topics are industry standards that all design and verification engineers should recognize. While we continue to add new topics, users are encourage to further refine collection information to meet their specific interests.

    • Languages & Standards

      • Portable Test and Stimulus
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    • Methodologies

      • UVM - Universal Verification Methodology
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    • Techniques & Tools

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      • Planning, Measurement, and Analysis
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  • All Courses
    The Verification Academy is organized into a collection of free online courses, focusing on various key aspects of advanced functional verification. Each course consists of multiple sessions—allowing the participant to pick and choose specific topics of interest, as well as revisit any specific topics for future reference. After completing a specific course, the participant should be armed with enough knowledge to then understand the necessary steps required for maturing their own organization’s skills and infrastructure on the specific topic of interest. The Verification Academy will provide you with a unique opportunity to develop an understanding of how to mature your organization’s processes so that you can then reap the benefits that advanced functional verification offers.

    • Universal Verification Methodology (UVM)

      • Introduction to UVM
      • UVM Basics
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      • UVMF - One Bite at a Time

    • Featured Courses

      • Introduction to ISO 26262
      • Introduction to DO-254
      • Clock-Domain Crossing Verification
      • Portable Stimulus Basics
      • Power Aware CDC Verification
      • Power Aware Verification
      • SystemVerilog OOP for UVM Verification

    • Additional Courses

      • Assertion-Based Verification
      • An Introduction to Unit Testing with SVUnit
      • Evolving FPGA Verification Capabilities
      • Metrics in SoC Verification
      • SystemVerilog Testbench Acceleration
      • Testbench Co-Emulation: SystemC & TLM-2.0
      • Verification Planning and Management
      • VHDL-2008 Why It Matters

    • Formal-Based Techniques

      • Formal Assertion-Based Verification
      • Formal-Based Technology: Automatic Formal Solutions
      • Formal Coverage
      • Getting Started with Formal-Based Technology
      • Handling Inconclusive Assertions in Formal Verification
      • Sequential Logic Equivalence Checking

    • Analog/Mixed Signal

      • AMS Design Configuration Schemes
      • Improve AMS Verification Performance
      • Improve AMS Verification Quality
  • All Forum Topics
    The Verification Community is eager to answer your UVM, SystemVerilog and Coverage related questions. We encourage you to take an active role in the Forums by answering and commenting to any questions that you are able to.

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  • Patterns Library
    The Verification Academy Patterns Library contains a collection of solutions to many of today's verification problems. The patterns contained in the library span across the entire domain of verification (i.e., from specification to methodology to implementation—and across multiple verification engines such as formal, simulation, and emulation).

    • Implementation Patterns

      • Environment Patterns
      • Stimulus Patterns
      • Analysis Patterns
      • All Implementation Patterns

    • Specification Patterns

      • Occurrence Property Patterns
      • Order Property Patterns
      • All Specification Patterns

    • Pattern Resources

      • Start Here - Patterns Library Overview
      • Whitepaper - Taking Reuse to the Next Level
      • Verification Horizons - The Verification Academy Patterns Library
      • Contribute a Pattern to the Library
  • All Cookbooks
    Find all the methodology you need in this comprehensive and vast collection. The UVM and Coverage Cookbooks contain dozens of informative, executable articles covering all aspects of UVM and Coverage.

    • UVM Cookbook

      • UVM Basics
      • Testbench Architecture
      • DUT-Testbench Connections
      • Configuring a Test Environment
      • Analysis Components & Techniques
      • End Of Test Mechanisms
      • Sequences
      • The UVM Messaging System
      • Other Stimulus Techniques
      • Register Abstraction Layer
      • Testbench Acceleration through Co-Emulation
      • Debug of SV and UVM
      • UVM Connect - SV-SystemC interoperability
      • UVM Versions and Compatibility
      • UVM Cookbook

    • Coding Guidelines & Deployment

      • Code Examples
      • UVM Verification Component
      • Package/Organization
      • Questa/Compiling UVM
      • SystemVerilog Guidelines
      • SystemVerilog Performance Guidelines
      • UVM Guidelines
      • UVM Performance Guidelines

    • Coverage Cookbook

      • Introduction
      • What is Coverage?
      • Kinds of Coverage
      • Specification to Testplan
      • Testplan to Functional Coverage
      • Bus Protocol Coverage
      • Block Level Coverage
      • Datapath Coverage
      • SoC Coverage Example
      • Requirements Writing Guidelines
      • Coverage Cookbook
  • All Events
    No one argues that the challenges of verification are growing exponentially. What is needed to meet these challenges are tools, methodologies and processes that can help you transform your verification environment. These recorded seminars from Verification Academy trainers and users provide examples for adoption of new technologies and how to evolve your verification process.

    • Featured & On-Demand

      • Continuous Integration - March 28th
      • Questa Verification IQ - April 11th
      • SystemVerilog Assertions
      • SoC Design & Functional Safety Flow
      • 2022 Functional Verification Study
      • Design Solutions as a Sleep Aid
      • CDC and RDC Assist
      • Formal and the Next Normal
      • Protocol and Memory Interface Verification
      • Webinar Calendar

    • On-Demand Library

      • Practical Flows for Continuous Integration
      • Lint vs Formal AutoCheck
      • The Three Pillars of Intent-Focused Insight
      • Formal Verification Made Easy
      • Fix FPGA Failures Faster
      • HPC Protocols & Memories
      • FPGA Design Challenges
      • High Defect Coverage
      • The Dog ate my RTL
      • Questa Lint & CDC
      • Complex Safety Architectures
      • Data Independence and Non-Determinism
      • Hierarchical CDC+RDC
      • All On-Demand Recordings

    • Recording Archive

      • Aerospace & Defense Tech Day
      • Exhaustive Scoreboarding
      • Improving Initial RTL Quality
      • CDC Philosophy
      • Hardware Emulation Productivity
      • Visualizer Debug Environment
      • Preparing for PCIe 6.0: Parts I & II
      • Automotive Functional Safety Forum
      • Siemens EDA Functional Verification
      • Improving Your SystemVerilog & UVM Skills
      • All Webinar Topics

    • Conferences & WRG

      • Industry Data & Surveys
      • DVCon 2023
      • DVCon 2022
      • DVCon 2021
      • Osmosis 2022
      • All Conferences

    • Siemens EDA Learning Center

      • SystemVerilog Fundamentals
      • SystemVerilog UVM
      • EDA Xcelerator Academy(Learning Services) Verification Training, Badging and Certification
      • View all Learning Paths
  • About Verification Academy
    The Verification Academy will provide you with a unique opportunity to develop an understanding of how to mature your organization's processes so that you can then reap the benefits that advanced functional verification offers.

    • Blog & News

      • Verification IQ
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    • Verification Horizons Publication

      • Verification Horizons - March 2023
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SV virtual interface
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  1. NULL pointer dereference.

    Posted by yguo on Apr 21, 2022
    UVM UVM SV virtual interface NULL pointer I meet a error that "NULL pointer dereference" when simulation. The error occurs when calling the interface. 1. I create a interface: interface adiv_if (); bit clk_target; bit clk; assign clk = adiv_bloc ...

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    UVM
    UVM SV virtual interface NULL pointer

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