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.
In a spectre netlist I define a parameter in an inline subckt, to set a default value.Nevertheless is at toplevel this parameters is set I would like to bypass the local definition
parameters test = 1
inline suckt mySbckt
parameters test = 0
I would like to have test = 1 instead of 0 in myModel.
Is there a way to workarround this.
local variable values dont affect global variables value...
So, your local parameter value is available for the local loop itself.. so out of this loop the parameter automatically takes its global value..
In reply to kenambo:
It is actually possible to get spectre to have the parameters looked up in the reverse (incorrect, in my opinion) order.
Historically certain other SPICE simulators used to have a rather counterintuitive (and bizarre, as it's nothing like any other language) parameter precedence - where global parameters overrode local parameters. I remember when this was introduced in one particular simulator around 20 years ago, and then I had to ask for a mechanism to make it the sensible way around.
Spectre defaults to the more logical local overrides global (which is the way thay any programming language would work). However, because we also support reading in other SPICE dialects, you can add:
simulator lang=spice.options PARHIER=GLOBALsimulator lang=spectre
in your netlist, and the lookup will be reversed. But remember that this applies everywhere. I strongly discourage you from doing this, because if you're using ADE, the parameter passing would be inconsistent with how ADE looks up parameters, and the danger is that you end up simulating something different from what you're manufacturing. That's clearly dangerous...
In reply to Andrew Beckett: