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.
Beginning with the 16.6 Allegro PCB Editor, the environment variable UPDATE_ECSET_REFDES is now the default behavior.
Read on for more details …
Most Electrical Constraint Sets (ECSets) will map based on Reference Designator (RefDes) values. It is sometimes the only thing that is unique for pins in a topology: In this picture, U21 and U44 have the same SI model and the same pin use. So the only way to differentiate them is by RefDes.This topology may not map the same way if the design is re-sequenced (RefDes re-numbering). The RefDes renaming can be an automatic process for the whole design or done manually for one component.In order to address this, the environment variable UPDATE_ECSET_REFDES is made the default behavior. It will change the RefDes in all ECSets based on updates in the design.For example if U21 is renamed to A-1 in the .brd file, the same will happen to any instance of U21 in the ECSets contained in the .brd.
NO_UPDATE_ECSET_REFDESA new variable, NO_UPDATE_ECSET_REFDES, is added in the 16.6 release to disable the feature described above.The variable NO_UPDATE_ECSET_REFDES can be added either at the Allegro command line or in your local env file.
Please share your usage of this capability.Jerry “GenPart” Grzenia