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Latest Blog Posts

  • Digital Design: Innovate Your Way Out of Recession With the New Encounter!

    RahulD
    RahulD
    It's official! The U.S. economy has been in a recession for the past year.
    And, the global credit crunch and economic recession has pulled the semiconductor industry down to the point of entering its eleventh recession.
     
    "I'm sorry it's happening," said US President George W. Bush, referring to the global financial crisis. In fact we are all sorry but we can’t be moping around, can we? As the…
    • 3 Dec 2008
  • Verification: News From the IP '08 Conference

    jvh3
    jvh3

    My colleagues on the Verification IP team have been honored to present at the annual "IP '08" conference this week in Grenoble, France.  Unfortunately for me I'm not able to attend (hence no photo blog or video; sorry), but my colleague Pete Heller in the Verification IP group has offered to relay the following news about this growing event.

    Q. [Joe] What is IP'08?
    A. [Pete] IP'08 is an annual…

    • 3 Dec 2008
  • Digital Design: Demo: Using the Pin Editor in SoC-Encounter

    BobD
    BobD

    SoC-Encounter has automatic partition pin assignment capabilites.  The tool also allows us to provide guidance on where partition pins should/should not be allowed to go.  However, it is sometimes useful for certain pins to be placed at certain coordinates, layers, and/or order.  When this level of control is needed, the Pin Editor can help automate the task of moving pins to their desired locations.  This demo shows…

    • 2 Dec 2008
  • Verification: Follow-up on Posedge Software Interview

    jasona
    jasona

    Just a quick follow-up to my previous interview with Henry Von Bank of Posedge Software. Henry informed me that they are offering ISX consulting services for companies that could use some additional resources integrating and deploying ISX. There is a data sheet with more details and contact information.

    • 1 Dec 2008
  • Verification: e Running Inside VCS Anniversary Updates?

    jvh3
    jvh3

    It's been a year since I heard the first solid report about Synopsys supporting the e language (IEEE 1647-2008) natively inside VCS.  (Note a key distinction here: VCS has interfaced with e language and/or Specman-driven testbenches for years -- that's not what I'm referring to.  The issue here is VCS running e code natively like it runs Verilog natively.)  In the past year I have had many more anecdotes…

    • 20 Nov 2008
  • Digital Design: Tapeout!

    Kari
    Kari

     

    With an early December tapeout looming, I've found myself too busy to write a post this week. But then I thought, "Why not write about tapeout?".  Here are some things I try to do during a project so that those last few weeks before a deadline are as stress-free as possible:

    Run an early DRC as soon as you get all the library data.
    We usually have three phases of a project: preliminary, stable, and…
    • 20 Nov 2008
  • System, PCB, & Package Design : What's Good About Advanced Plating Bar Checks - Check out the SPB16.2 Release and See!

    Jerry GenPart
    Jerry GenPart

    New functionality has been added to the SPB16.2 Allegro Advanced Package Designer (APD) suite of tools to support Advanced Plating Bar Checks.

    The plating bar check command has existed inside of the APD and SiP tools for many years. However, as the design of IC packages has continued to evolve, the needs for this command continue to change. As an example, in the past, it was necessary only to check that the balls of the…
    • 19 Nov 2008
  • Verification: Virtualization and Verification With Posedge Software

    jasona
    jasona

    Posedge Software is a Cadence Verification Alliance Member with skills in two of my favorite areas: virtualization and embedded software verification. Posedge has worked with ISX as far back as 2006. Besides the fact that they are skilled in verification I must also mention that they are from Minnesota, mostly to prove that my home state is not a complete wasteland and other smart people also live here (even though…

    • 19 Nov 2008
  • Verification: Thoughts on AMS Verification Inspired by the DV Club Lunch

    jvh3
    jvh3

    Last week I had the pleasure of attending a DV Club lunch presentation from Dr. Henry Chang of Designers' Guide Consulting on "What the Digital Verification Engineer Needs to Know about Analog Verification".

    The talk was very engaging, where Dr. Chang's comments on the relatively primitive state of analog verification confirmed my observations in talking with customers and Trailblazer partners…

    • 13 Nov 2008
  • System, PCB, & Package Design : What's Good About HDI Via Structures - Check out the SPB16.2 Release and See!

    Jerry GenPart
    Jerry GenPart
    New functionality has been added to the SPB16.2 Allegro PCB Editor suite of tools to support micro vias as distinct design elements.

    This introduces a new methodology to add both conventional and HDI via structures. It includes a new ‘working layer’ model and associated via popup GUI designed to automate the sequence of layer transitions using stacked, staggered and inset vias. We'll cover:
    • Add Via Overview…
    • 12 Nov 2008
  • Digital Design: Coming This Friday November 14th: SoC-Encounter Office Hours

    BobD
    BobD

    I've really been enjoying the discussions in our Digital Implementation Forums.  Thanks to those who have contributed questions and answers, and to you "lurkers" out there as well.  I appreciate you all- this community is nothing without you!

    A couple of you have reached out and sent me private messages when you've not been able to get complete answers to your questions.  That's fine by me- if…

    • 11 Nov 2008
  • Digital Design: How to Change a Net Name

    Kari
    Kari

     

    This is a question that comes up once every few months or so: "How do I change the name of a net that I routed by hand? Do I have to delete it and route it again?"

    The answer (thankfully) is no. When would you find yourself in this situation? One example is that you hand-routed a complicated analog or power net, and then got a netlist ECO in which the connections didn't change, but the name of the net…
    • 7 Nov 2008
  • Digital Design: Demo: Partitioning a Design in SoC-Encounter

    BobD
    BobD

    One of the longest standing capabilities in SoC-Encounter is its ability to partition a design- the process by which a design is broken up for hierarchical implementation.  I remember seeing "Big Chip? Go Hierarchical!" in marketing material for Silicon Perspective Corporation before I joined the company back in 2001 (Cadence acquired Silicon Perspective later that year), but it wasn't immediately obvious to me how the…

    • 6 Nov 2008
  • Verification: Heads-up: Formal + Productivity Flow Technical Webinar Coming Up On Nov 12th

    jvh3
    jvh3

    Heads-up: there is a free technical webinar next Wednesday 11/12 that goes deeper into the topic of combining formal verification with Cadence's planning & management technology to dramatically improve the throughput of proving assertions, and bug hunting in general.  In a phrase, this is a new "productivity flow" which my colleague Bin Ju previewed in her segment on formal verification technology.

    If you would…

    • 5 Nov 2008
  • System, PCB, & Package Design : What's Good About The SPB16.2 Release? WOW - Download It now!

    Jerry GenPart
    Jerry GenPart

    The SPB16.2 release is now available (actually, it was available on 10/31/08 from the Cadence software downloads site at - http://downloads.cadence.com/).

    Over the next several weeks, I'll be writing about key new features available in this SPB16.2 release. I'd like to hear which features that you've been waiting to see are the most important and useful for your design requirements and which features you'd like us to tune…

    • 5 Nov 2008
  • Verification: Portable Design Names Cadence Incisive Palladium Dynamic Power Analysis its September 2008 Product of the Month

    Ran Avinun
    Ran Avinun

    In his article in Portable Design, John Donovan wrote:

    Palladium Dynamic Power Analysis represents a methodology shift for power budgeting of electronic devices with system-level implications. With a focus on productivity improvement, DPA helps to quickly identify the average and peak power consumption of SoC designs running real software in various operational scenarios. Leveraging Palladium III’s built-in memory and…

    • 4 Nov 2008
  • Verification: Welcome Sharath Siddappa From Rambus, You Are The 5000th OVM World Registrant!

    Adam Sherer
    Adam Sherer

    Welcome Sharath Siddappa, the 5000th OVM World registrant! In only 10 months, the OVM has grown beyond 5000 registrants to more than 5200.  I took the opportunity to ask Sharath a few questions about his interest in the OVM and how he wants it to develop and here's what he had to say.

    Can you tell us a little about yourself and your role at Rambus?
    I have been working in Rambus Chip Technology (I) Pvt Ltd for past 2…
    • 4 Nov 2008
  • Verification: OVM - The "O" Means Opportunity

    Adam Sherer
    Adam Sherer

    A few months back I blogged that OVM was "Open for Business".  A nice play on words, if I do say so myself, but is there real opportunity now that the door is open?

    5200 OVM World participants.  10,000 downloads.  2100 forum posts.  200+ LinkedIn OVM Professionals.  That certainly describes an active community.  But how do we all monetize the OVM?  Yeah, its pretty obvious how Cadence will monetize it, but a few recent…

    • 31 Oct 2008
  • Verification: Report From the Advanced Verification Techtorial in San Jose Tuesday 10/28

    jvh3
    jvh3

    I'm excited to report that Tuesday's techtorial, covering a range of topics underneath the metric driven verification and OVM umbrellas, was a great success  (Here is the detailed agenda for reference http://www.secure-register.net/flyer.php?id=260). 

    I make this claim not just because of the numbers (a 71% sign-up/attendee ratio -- much higher than the typical 50% you can expect in North America), but because this…

    • 30 Oct 2008
  • Verification: The Power of Cadence System Power Flow vs. Viewing from the Top

    Ran Avinun
    Ran Avinun

    I feel that I must respond to the following blog published by Frank Schirrmeister. Virtual prototypes clearly have their value and their place in the SoC design flow (especially as platforms for software development) but they are hardly a substitute for hardware-assisted solutions and you need to find a way to connect them to your implementation and verification flows otherwise what you see may not be what you get.  Let…

    • 29 Oct 2008
  • Verification: ESC Boston: Day 2

    jasona
    jasona

    This morning before heading to ESC it dawned on me that the park across the street from my hotel was the Boston Public Garden. Maybe it was the swans on the hotel logo, but the ironic thing is that the only way I knew about this park was by reading the book Make Way for Ducklings to my kids. I previously reported that 4 weeks ago we had a new baby girl. During the week following the birth, as my wife was recovering, I took…

    • 29 Oct 2008
  • Analog/Custom Design: Video Demo: ViVA-XL - Fast Waveform Viewing

    archive
    archive
    It’s happened to each of us at some point in time. Your long simulation is finally complete and you eagerly load up the crucial results you’ve impatiently been waiting for. Much to your chagrin, your waveform tool grinds to a halt as it chokes on your enormous signals. Designers can completely avoid this spinning hourglass scenario by taking advantage of the fast waveform viewing capabilities in ViVA-XL and our MMSIM…
    • 29 Oct 2008
  • System, PCB, & Package Design : What's Good About Directive Locking?

    Jerry GenPart
    Jerry GenPart

    Do you wish you could lock specific aspects of a DEHDL design content? Do you need to standardize on color used for parts, wires, text, etc. in a design? Do you wish designers would maintain a standard grid?

    Well - all this (and more!) can be accomplished through the project .cpm file directive locking capabilities available since the SPB16.0 release. I'm writing about this since there are still some customers I interact…

    • 29 Oct 2008
  • Verification: Virtualization Taxonomy

    jasona
    jasona

    I arrived safe and sound at the Embedded Systems Conference in Boston today. It's been a few years since I have attended ESC, but it all came back to me quickly, and is just as I remember it, a lot of small booths with vendors showing small boards doing something (hopefully something interesting and not something small).

    The most interesting talk I attended was Virtualization for Embedded and Real-Time Systems. Virtualization…

    • 28 Oct 2008
  • Verification: OVM Momentum and Interoperability

    Adam Sherer
    Adam Sherer

    The question of how to integrate legacy VMM VIP into OVM verification environments is an issue on the minds of many in the verification ecosystem.  Ed Sperling has written a good article on this subject.

    For folks who have been tracking progress on the Accellera VIP TSC reflector, or in the meetings directly, it appears that progress is being made.  Of course, that progress is possible in part because the OVM has been available…

    • 27 Oct 2008
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