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.
Try starting the documentation (run cdnshelp from the command line, or use the Help menu in Virtuoso) and search for cdsLibMgr.il - it tells you how it is located.
There is no cdsLibMgr.il in the standard IC installation - it's for users to add. You should be able to use "cdswhich cdsLibMgr.il" to find if you have an active file in your environment.
In reply to Andrew Beckett:
In reply to Spallow:
I'd like to add to what Andrew said. It is possible for the cdsLibMgr.il file name itself to be customized using an environment variable in the .cdsenv file:
cdsLibManager.customize startupFile string "cdsLibMgr.il"
However, having said this, I would think that mostly the default filename cdsLibMgr.il would be used for the sake of clarity and convention.
In reply to skillUser:
And Lawrence's suggestion is also in the documentation that I pointed Spallow to earlier...
Thanks, Lawrence. Your suggestion is quiet useful for me. I check the variable value by the command: envGetVal("cdsLibManager.customize" "startupFile"). The value is the default name "cdsLibMgr.il".
I have another question. I want to verify the usage of the file cdsLibMgr.il. The following two files are used to print one message when starting and closing Library Manager. However, no message output. Why?
----------- File 1: $WORKING_DIR/cdsLibMgr.il --------------; specify names of functions to call at startup and exitlmgrDefineInits('("abLibMgrInitProc") '("abLibMgrCloseProc"))
----------- File 2: $HOME/.cdsinit ---------------procedure( abLibMgrInitProc() fprintf(stdout "My InitProc was called\n"))procedure( abLibMgrCloseProc() fprintf(stdout "My CloseProc was called\n"))
This works for me. Try putting a printf() statement in the cdsLibMgr.il file to ensure it's being loaded (it would appear at the bottom of the library manager window).
Also, this only works with the Cadence Library Manager; if you are using somebody elses (e.g. IC Manage), then it won't work.