Unlock Your Verification Superpowers: Questa One Sim, Your Ultimate Design Partner
In the fast-paced world of hardware design, verification isn’t just a step; it is the cornerstone of building complex designs both quickly and reliably. This is precisely where Questa One Sim steps in. Engineered to accelerate your workflow, Questa One Sim boasts fast engines for RTL, gate-level simulation (GLS), and even robust design-for-test (DFT) pattern verification.
Say goodbye to slow test runs and the frustration of trying to make sense of cryptic error messages. Questa One Sim equips you with powerful capabilities to thoroughly check your designs, transforming even the most complex verification challenges into clear, manageable tasks.
How Questa One Sim Speeds Up Your Work
Questa One Sim is acutely aware that in the demanding world of hardware verification, time is critical. It is designed to drastically reduce your overall verification cycle time from initial setup to final sign-off. This efficiency is driven by intelligent workflows that enable rapid configuration of extensive regression testing and seamless swapping in of new modules without the need for time-consuming full recompilations or restarts. Questa One Sim ensures your design is always test-ready, virtually eliminating idle waiting periods and keeping your development pipeline moving at full speed. These are some of the flows supported by Questa One Sim:
Auto-PDU Flow: For large, stable design blocks, Pre-Optimized Design Units (PDUs) can be reused. The best part, however, is Questa One Sim’s innovative auto-PDU feature that automatically manages these reusable design blocks for you. This means you don’t have to do any manual work, accelerating your overall verification process.

Dynamic reconfiguration: Say goodbye to rebuilding entire test cases for minor IP changes! This feature allows you to precompile alternative modules and select them at simulation time, saving massive compilation overhead and disk space for complex SoC verification with countless permutations.

How Does Questa One Sim Facilitate Debugging?
Finding and fixing errors is also made much easier and faster with Questa One Sim’s powerful debugging capabilities. These are the features you are going to explore in this course:
- Protocol Debug: The Questa One Sim Protocol Debug feature facilitates efficient debugging of protocol transactions.
- Constraint Debug: Imagine fixing design rules that clash without changing your code, re-running tests, or waiting! Questa One Sim’s Constraint Debug lets you find and fix tricky rule problems right away. This saves a lot of time!
- X-Debug: Sometimes, parts of your design can have X values. X-Debug helps you understand why unknown values appear and identify the root cause of X values through different views (Treemap, Corruption, and Timeline views).

- Assertion Indicators: Questa One Sim helps you check specific rules you’ve set for your design. When a rule is broken, it quickly shows you exactly where the issue is. With the assertions, you gain deep insights into these rule checks, including detailed indicators such as start, pass, fail, antecedent, and active counts, helping you fully understand your design’s behavior over time.
Questa One Sim provides super-fast and comprehensive coverage checking. You can even see how well your tests are covering your design as they run, with clear, live visuals that help you quickly know if you’ve tested enough.
Conclusion
Questa One Sim is more than just a tool: it’s your intelligent, powerful assistant for modern hardware design and verification. It delivers impressive speed, smart problem-solving, full coverage, and a simple, reliable way to verify your design. Ready to gain these special design-checking powers and make your design process even faster?
A new training course is now available to guide you through the various features of Questa One Sim
Learn more about our verification classes, including the Questa One Sim class, by visiting our oneGlance Learning Maps. The self-paced training is available with closed captioned videos in 9 languages for our global audience. This course is also offered in an instructor-led format by our industry experts and can be tailored to your specific learning objectives. After completing the training, you can test your knowledge and get certified by taking the Certification Exam Level 1 badging exams. Upon passing the exam, you will earn a digital badge that you can showcase on your LinkedIn profile or in your email signature.
For additional questions or assistance on this topic, contact a Siemens representative at xceleratoracademy_eda@siemens.com
Author: Nouran Youness, Customer Training Engineer, Siemens EDA Learning Services


