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.
While I am running a simple resistor divider network through ADE, it is not working correctly.
I am gettting the following warning :
"WARNING (CMI-2826): R0_4__dmy0.rmain : No model and instance parameter is given."
"WARNING (CMI-2826): R0_4__dmy0.rend : No model and instance parameter is given."
Please help me on this.............
My wild guess is that you don't have $CDS_Netlisting_Mode set to Analog. So try exiting virtuoso, and doing:
setenv CDS_Netlisting_Mode Analog
(or if using bash/ksh do "export CDS_Netlisting_Mode=Analog")
in the terminal and then restart virtuoso. Bring up ADE, and do a Simulation->Netlist->Recreate and see if that solves the problem.
If it doesn't, please show the relevant portion of the netlist that it is complaining about.
In reply to Andrew Beckett:
I set $CDS_Netlisting_Mode set to Analog.... and restarted
But it is still showing the same problem...
// Cell name: test_r// View name: schematic//Series configuration of R1R1_1__dmy0 (net2 R1_1__dmy0 ) rppolywo l=10u w=2u m=1 mf=(1) \ mismatchflag=0R1_2__dmy0 (R1_1__dmy0 R1_2__dmy0 ) rppolywo l=10u w=2u m=1 mf=(1) \ mismatchflag=0R1_3__dmy0 (R1_2__dmy0 R1_3__dmy0 ) rppolywo l=10u w=2u m=1 mf=(1) \ mismatchflag=0R1_4__dmy0 (R1_3__dmy0 net4 ) rppolywo l=10u w=2u m=1 mf=(1) \ mismatchflag=0//End of R1
//Series configuration of R0R0_1__dmy0 (net4 R0_1__dmy0 ) rppolywo l=10u w=2u m=1 mf=(1) \ mismatchflag=0R0_2__dmy0 (R0_1__dmy0 R0_2__dmy0 ) rppolywo l=10u w=2u m=1 mf=(1) \ mismatchflag=0R0_3__dmy0 (R0_2__dmy0 R0_3__dmy0 ) rppolywo l=10u w=2u m=1 mf=(1) \ mismatchflag=0R0_4__dmy0 (R0_3__dmy0 0 ) rppolywo l=10u w=2u m=1 mf=(1) mismatchflag=0//End of R0
Log file Warnings :
Warning from spectre during initial setup. WARNING (CMI-2826): R0_4__dmy0.rmain: No model and instance parameter is given. WARNING (CMI-2826): R0_4__dmy0.rend: No model and instance parameter is given. WARNING (CMI-2826): R0_3__dmy0.rmain: No model and instance parameter is given. WARNING (CMI-2826): R0_3__dmy0.rend: No model and instance parameter is given. WARNING (CMI-2826): R0_2__dmy0.rmain: No model and instance parameter is given. Further occurrences of this warning will be suppressed.Notice from spectre during topology check. No DC path from node `R1_1__dmy0' to ground, Gmin installed to provide path. No DC path from node `R1_2__dmy0' to ground, Gmin installed to provide path. No DC path from node `R1_3__dmy0' to ground, Gmin installed to provide path. No DC path from node `net4' to ground, Gmin installed to provide path. No DC path from node `R0_1__dmy0' to ground, Gmin installed to provide path. Further occurrences of this notice will be suppressed.
In reply to reddy1553:
Actually the rppolywo definition should be in the model files from your foundry (TSMC at a guess) and so would be unaffected by the netlisting. It suggests that something is wrong with the model files you're using - you could take a look at the definition of rppolywo in your model files to see if that sheds any light (you can't post it here because it's TSMC IP). Otherwise you may have to contact TSMC - or contact customer support so that we can talk you through what to look at over the phone (say).