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.
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 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.
Hi all,I need to perform synthesis of a sub-block of the design. And then merge it with the top design.I am using RTL Compiler.In pks or build gates this was simple, we had the command set_current_module .. and one can then perform synthesis on a subdesign.There seems to be no direct equivalent of set_current_module in RTL Compiler.I found one command in RTL Comiler, derive_environment.This promotes a subdesign to a topdesign.So in design database we will now have/designs/topdesign/designs/subdesign_promoted_topThe synthesis which I perform on /designs/subdesign_promoted_top is now independent of actual topdesign.This works. But how can I later merge the/designs/subdesign_promoted_topinto/designs/topdesign ??I see no way to do this in the userguide!Can someone help me?Thanks in advance,Pradeep
Hi Pradeep,Try the following:edit_netlist new_instance -name /designs/subdesign_promoted_top /designs/topdesignThere are more options for "edit_netlist new_instance" in the manualRegards,Max
Sorry, tipo:edit_netlist new_instance -name SUBDESIGN_INST_NAME /designs/subdesign_promoted_top /designs/topdesign
Thanks Stalker,I will try this tomorrow, when I am in office..But what should I do with the existing subdesign in the topdesign..?will that be overwritten?Or should I first remove the existing subdesign, and then create a new instance using the subdesign_promoted_top?Can you please tell me if possible, about how merging takes place...Thanks,Pradeep
You can continue working with you topdesign as usual, the only thing, that you can't omit the design name in the commands, for example:write_hdl topdesign > top.v and notwrite_hdl > top.vI don't know exactly how the new instance is linked, but I think the subdesign_promoted_top is needed for correct work.
Hi Max,I tried using this...edit_netlist new_instance -name SUBDESIGN_INST_NAME /designs/subdesign_promoted_top /designs/topdesignnow on the topdesign I have an unconnected instance in the hierarchy, called SUBDESIGN_INST_NAMEIf I try to optimize, since this instance is unconnected, and not driving any ports, the instance is removed by synthesis.------I also tried the following:The hierarchy looks like this:/designs/topdesign/instances_hier/xxxx/designs/topdesign/instances_hier/subdesign ----- this is promoted to subdesign_promoted_top/designs/topdesign/instances_hier/SUBDESIGN_INST_NAME ---- this is subdesign_promoted_top copied back into topdesignnow I removed subdesignrm /designs/topdesign/instances_hier/subdesignSo the hierarchy now looks like this:/designs/topdesign/instances_hier/xxxx/designs/topdesign/instances_hier/SUBDESIGN_INST_NAME ---- this is subdesign_promoted_top copied back into topdesignthen I have run 'synthesize'... But however the tool sees /designs/topdesign/instances_hier/SUBDESIGN_INST_NAME, not driving any ports and optimizes it away.... but doesnt link it to topdesign!! :(----I am still not sure, how to link the designs....
Hi Pradeep,have you tried the change_link command. I have used this in the past in a similar flow with pretty good success. I think the key is that the pin names have to match.gh-
Hi gh,yes, change_link works...!i was just trying that and got ur mail too :)thanks n regards,pradeep
Me too I am trying to synthesize subdesigns because my vhdl code is too big. So, I need to put to a top-level every instance of my design and so on use the command derive_environment.
Please can you help me to use this command. Where I write : rc :> derive_environment /designs/my_top_design/instances_hier/my_subdesign_to_put_to_top_levelthe terminal is block !!
This command take a long time or there is a problem with it ?
In reply to jojo57006:
How big is /designs/my_top_design/instances_hier/my_subdesign_to_put_to_top_level ?
What exactly is your goal ? Can you describe what your flow is ?
In reply to grasshopper:
My goal is to make the low power multi vdd synthesis of my design : design/top_rs232
I have 200 000 gates to synthesize and I work on the server of my school. I can't make the synthesis directly because of this server so I want to elaborate all the design and synthesize each blocks separately. After I will read all the .v file and redo the synthesis which now the server can support.