Cadence® system design and verification solutions, integrated under our Verification Suite, provide the simulation, acceleration, emulation, and management capabilities.
Verification 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.
More Support Log In
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.
The Cadence Academic Network helps build strong relationships between academia and industry, and promotes the proliferation of leading-edge technologies and methodologies at universities renowned for their engineering and design excellence.
Participate in CDNLive
A huge knowledge exchange platform for academia to network with industry. We are looking for academic speakers to talk about their research to the industry attendees at the Academic Track at CDNLive EMEA and Silicon Valley.
Come & Meet Us @ Events
A huge knowledge exchange platform for academia. We are looking for academic speakers to talk about their research to industry attendees.
Americas University Software Program
Join the 250+ qualified Americas member universities who have already incorporated Cadence EDA software into their classrooms and academic research projects.
EMEA University Software Program
In EMEA, Cadence works with EUROPRACTICE to ensure cost-effective availability of our extensive electronic design automation (EDA) tools for non-commercial activities.
Apply Now For Jobs
If you are a recent college graduate or a student looking for internship. Visit our exclusive job search page for interns and recent college graduate jobs.
Cadence is a Great Place to do great work
Learn more about our internship program and visit our careers page to do meaningful work and make a great impact.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
Overview All Courses Asia Pacific EMEANorth America
Instructor-led training [ILT] are live classes that are offered in our state-of-the-art classrooms at our worldwide training centers, at your site, or as a Virtual classroom.
Online Training is delivered over the web to let you proceed at your own pace, anytime and anywhere.
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 technology. 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.
My issue is as follows:
1. I set up the cadence environment.
2. Now I fire up the workbench and enter a schematic using Virtuoso composer.
3. I open ADE and when I run the simulation, I see the following error in CIW.
*Error* The 'spectre' executable that you are using is an older version. Use MMSIM60 or later version of Spectre with this release. To check the spectre version, run 'spectre -W'.
Here are some useful messages from CIW just before this:
*Error* Failed to launch ViVA. There is a problem with the DFII installation hierarchy (Exit Code = 1). For further assistance, contact Cadence Customer Support with the diagnostic information available in the log file.*Info* Dumping diagnostic information ..../usr/licensed/cadence-20060508/IC610.sun4v/tools.sun4v/dfII/bin/checkwavescan: wavescan: not found
I tried to check the path variable and even typed "Spectre -W/-V" which showed version 6.2 being in the path.
I do not understand why is the tool trying to access the older version of spectre even though, the first occurence of the executable in ($PATH, which is written above) refers to the higher version of 6.2.
I have the following questions:
1. Is the error "cannot load ViVA" related to cadence not finding the new spectre executable ?
2. How can I set the path within the CIW (will using SkillSetPath, not affect the other tools ?)
3. Is there a problem with my $PATH ?
Thanks in anticipation for your assistance with this !!
I noticed from your error message that $CDS_INST_DIR/tools/dfII/bin does not appear to be in your $PATH. Not sure how you are able to launch virtuoso without this in your $PATH.... Your cadence environment setup requires the following 2 paths: $CDS_INST_DIR/tools/bin $CDS_INST_DIR/tools/dfII/bin
This should solve the earlier VIVA warnings and perhaps answers question #3.
After fixing the $PATH, run "which virtuoso" and " virtuoso -W" to make sure it is picking up the correct virtuoso executable. Try the same for the spectre executable.
- I don't know what role the viva issue this is playing in your spetre issue.
- For question #2 above, I you trying to set the SKILL path or the unix $PATH?
Assuming UNIX path:
setShellEnvVar("PATH=<X>" ) ;;;where <X> = desired PATH