Cadence® system design and verification solutions, integrated under our System Development Suite, provide the simulation, acceleration, emulation, and management capabilities.
System Development Suite Related Products A-Z
Cadence® digital design and signoff solutions provide a fast path to design closure and better predictability, helping you meet your power, performance, and area (PPA) targets.
Full-Flow Digital Solution Related Products A-Z
Cadence® custom, analog, and RF design solutions can help you save time by automating many routine tasks, from block-level and mixed-signal simulation to routing and library characterization.
Overview Related Products A-Z
Driving efficiency and accuracy in advanced packaging, system planning, and multi-fabric interoperability, Cadence® package implementation products deliver the automation and accuracy.
Cadence® PCB design solutions enable shorter, more predictable design cycles with greater integration of component design and system-level simulation for a constraint-driven flow.
An open IP platform for you to customize your app-driven SoC design.
Comprehensive solutions and methodologies.
Helping you meet your broader business goals.
A global customer support infrastructure with around-the-clock help.
24/7 Support - Cadence Online Support
Locate the latest software updates, service request, technical documentation, solutions and more in your personalized environment.
Cadence offers various software services for download. This page describes our offerings, including the Allegro FREE Physical Viewer.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
This course combines our Allegro PCB Editor Basic Techniques, followed by Allegro PCB Editor Intermediate Techniques.
Virtuoso Analog Design Environment Verifier 16.7
Learn learn to perform requirements-driven analog verification using the Virtuoso ADE Verifier tool.
Exchange ideas, news, technical information, and best practices.
The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information.
It's not all about the technlogy. Here we exchange ideas on the Cadence Academic Network and other subjects of general interest.
Cadence is a leading provider of system design tools, software, IP, and services.
Agile software development methods result in highly adaptive environments that support incremental development with cross-functional teams. According to Neil Johnson, principal consultant at Cadence partner and design services provider XtremeEDA, agile methods are a natural fit for Silicon Realization as described in the EDA360 vision paper. In this guest blog, Johnson shows how agile methods facilitate convergence, a key tenet of Silicon Realization.
In the whitepaper Silicon Realization-A New Approach To Faster, Better, and More Profitable Silicon, Cadence identifies the tenets of unified intent, abstraction and convergence as the keys to creating silicon. While all three are indeed integral to successful product delivery, the concept of convergence most challenges traditional thinking in EDA and semiconductor development.
The whitepaper defines convergence as follows:
The term ‘convergence' represents the marriage of top-down and bottom-up methodologies. Convergence is about building a solution where successive refinements and concurrent optimizations ensure intent is met in all aspects.
Even modestly sized state-of-the-art products are developed as a set of newly developed modules and IP blocks along with supporting integration logic. Completion of these modules and IP ideally converge at some point as they are molded into the end product, validated and delivered. With successful convergence comes successful, timely delivery. For teams that are slow to converge, the obvious consequences can include added stress on the development team, with delivery dates pushed and dollars ultimately lost.
But given that we all know design, verification and implementation need to come together before hardware becomes reality, why would EDA360 specifically single out convergence as a tenet of Silicon Realization? It is subtle, but for most teams the value is simply in the recognition. In recognizing convergence, EDA360 is effectively identifying divergence as an impediment in development process. A renewed emphasis on convergence is an effort to remove that impediment.
With an increasing emphasis on vertical sub-teams and functional specialization, it's hard to deny that hardware developers have a preference for divergence. To an extent, we have ignored the problems that this preference has created. EDA360 aims to rectify that by highlighting collaboration, specifically between design team and foundry, as key to timely convergence.
But we can do better. Developers must recognize divergence as an impediment to delivery and challenge themselves to address it throughout the development cycle. How do teams do that? Agile methods.
Figure 1 - Agile methods lessen divergence
Agile development has been used successfully within the software field for more than a decade. While agile comes in many flavors, a characteristic that is fundamental to all of them is incremental development. Incremental development is what we look at next as it applies to convergence in Silicon Realization. (For a good overview of the basics, see Richard Goering's blog post Can Agile Software Development Methods Help SoC Design?)
Consider a traditional semiconductor development process where functional compartmentalization and limited collaboration creates one long diverge-converge cycle. A number of functional teams are allowed to wander from the very beginning until mounting delivery pressures dictate the obvious need for a stressful, at times haphazard, convergence.
Figure 2 - A Single Diverge/Converge Cycle
Even with unified intent from the outset, early divergence is almost guaranteed by the fact that there tends to be very little correlation between priorities of functional teams to the extent that shared milestones do not normally appear until a product release.
Now consider a process that includes not only unified intent, but regular milestones that are shared across all functional teams. The purpose of these shared milestones is to ensure that functional teams are indeed converging toward a customer solution long before delivery of the end product.
Figure 3 - Diverge/Converge/Repeat
With the understanding that development will diverge from intent in varying ways and to varying extents, agile teams set milestones for incremental completion of a product. Teams start small by developing a small but functional subset of the end product. Development continues with a growing functional subset that steadily crescendos in size on its way to delivery. In agile, this is known as incremental development.
To underscore the similarity between incremental development and EDA360, incremental development by definition is a process "where successive refinements and concurrent optimizations ensure intent is met in all aspects" as noted in Silicon Realization-A New Approach To Faster, Better, and More Profitable Silicon.
With much shorter cycles, opportunities for divergence are minimized, thereby simplifying the problem of convergence.
Obviously, EDA360 does not only apply to EDA. The immediate effects will be felt by organizations that evolve to use next generation tools and techniques. Further, the evolution toward EDA360 will undoubtedly trickle down to even the organizational structure, especially as teams understand the importance of convergence and the requirements to make it happen when focused on the application. Agile development process can almost certainly assist organizations with this immense undertaking.
Together, complementing the EDA360 vision with proven methods from agile development brings exciting new possibilities and a viable way forward for both EDA and semiconductor companies.
This guest blog entry was adapted from Realizing EDA360 with Agile Development posted on http://www.agilesoc.com/. Anyone interested in other articles and video presentations on agile hardware development is welcome to visit http://www.agilesoc.com/.