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.
I have some pcells in my layout that use custom procedures. These procedures are loaded in the libInit.il file. But even then if I generate a gds, I have following error in my log file :
WARNING (472): Pcell evaluation failed. This could have happened as a result of either a syntax error or the use of an unsupported PIPO function in Pcell SKILL code. Only db*() and rod*() functions can be used in Pcell SKILL code. The Pcell evaluation error in this case is ignored because the 'Ignore Pcell evaluation failure' option is selected in Stream In/Out Options.
Is there something else you must do when streaming out a pcell with custom procedures?
There are limits to the SKILL commands that are usable in pcells. They include the basic SKILL operators, the db, tech, rod, pc and cdf commands. These command prefixes are documented in one of the pcell documents. These commands are available in all tool contexts. Other command prefixes such as xl and le are only available in interactive tool contexts. You may be using some of those in your pcell custom code.
Generating GDS2 from batch means that you do not have access to the interactive commands as they are not loaded. Check your SKILL for these commands. You may also get an idea of which command from the error message or from the log file. Search for it and replace it.