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 ckt that needs to be modified slightly after each run,say,shift a voltage source from 1 node to other
and run it again on modidied netlist. Each run consists of "tran" analysis for a set of varying parameters.
I am using ocean script for doing parametric analysis.
You don't say how many positions you are going to switch, but if it is not too many then use the spectre switch statement with the switch position controlled by a variable in a definition file and load that definition file into your ocean testbench with definitionFiles(). You also place that voltage source in the same definition file. Before each run() in your ocean file, you do a desVar( "sw_pos" x) to set the switch to the correct position. This way you don't need to change your netlist at all.If you want to have a real switch in your schematic, then copy the sp1tswitch from analogLib to your home and change the cyclic nature of the switch position in the CDF and make it a string. Place lots of switches in your schematic, each with a different variable, and you can set these variables from ocean.Or if you need a manyway switch, create one yourself and use a variable for the position.Or if you know how to write skill, you can place a voltage source with a piece of wire and a label and use connect by name as your trick. Needs to check and save between each change and ocean will need to netlist again, which I think is only done with the design() statement. Lot's of work for something that is better done with the definitionFile() trick above.-- Svenn