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'm using bicmos8hp technology for a design. After completing DRC and running LVS I'm facing a problem
*WARNING* nvn exit with bad status*WARNING* Status 256*WARNING* Assura execution terminated.
I think the settings for LVS are not proper. I used correct extractrules,binding rules, compare rules,rsf inclde files.
Can anyone help me ?
The current PDK is V184.108.40.206. This was just released and only supports IC6.1 and Assura 4.1.
If using an older kit (e.g. V220.127.116.11), we know those files work so the likely issue us that you are using an old version of Assura (this kit also supports 4.1). The error that you listed is kind of general and doesn't reveal the problem. Is there any further detail, if you scroll up higher in the log file? Regards, Zach
In reply to Zach:
I'm using Assura 4.1 and spectre 7.2. Some of the warnings I found in log file are
WARNING Undefined layer in dfII. Layer name 'BI' doesn't exist, treating as an empty layer. bi = layer("BI" type("drawing"))
WARNING LVS Run detected.Non-legacy mode has been disabled for this LVS run
*WARNING* The terminals are not in parentheses. This is old syntax and will be interpreted as a device with fixed terminal number. The rule will be converted internally to new syntax: resDevice("kqres" ("D" "S" nil))
Preprocessing schematic network phase 1*WARNING* genericDevice("subc_inh") - cell does not exist. This command will be ignored. WARNING (AVLVSNN-10050) : resDevice - cell 'oprrpres_inh' not found. WARNING (AVLVSNN-10050) : resDevice - cell 'oprrpres' not found.
*WARNING* genericDevice("phaseinverter") - cell does not exist. This command will be ignored.
WARNING (AVLVSNN-10034) : bindingFile/bind rule - schematic cell 'bondpad' is not found and will be considered a dummy cell. The default binding for layout cell 'bondpad(Generic)' will be broken.
Finished /home/cadence/ASSURA/tools/assura/bin/nvn*WARNING* '?expandCellToParent' list: No cell name match for vpnpsx**WARNING* '?expandCellToParent' list: No cell name match for corrPoint**WARNING* '?expandCellToParent' list: No cell name match for esdnwsx*
These are some of the warnings I'm getting.
In reply to peter450:
I don't think any of these warnings are significant. As I mentioned before, the old PDK (V18.104.22.168) ran LVS with no problems. I just built a testcase with the new PDK (V22.214.171.124) and still LVS ran with no problems. If your issue persists, you should contact the organization that supplied the PDK to you. Be sure to indicate your version, although technically, only V126.96.36.199 is supported. Regards, Zach