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 am using Turbo Tool Box in IC5141. I have created the Rulfilefor the foundry.
However I am getting warnning each time I open TurboTollBox as below:-
! Missing minSpacing rule for CONT drawing and PO1 drawing value set to 0.0.
Can anybody please tell:- Where I can change this value in the rule file ?
Also I tried to modify the Rule file. I couldn't figure out where I should do the cahnge.
Also when I try to enter the rules in TurboTool Form (Rule Files Utility) and save it, a form named /tmp/_leTbRules11270 comes up.
Which also gives warning as:-
------------------------ MISSING PHYSICAL RULES -------------------------Some leTbRules are set to '0.0'. Toolbox commands may be affected if therequired physical rules are not established first._________________________________________________________________________
Some of my TurboCommands are NOT functioning as well.
Setting up Turbo toolbox rules is not something I've done for a rather long time, but I think the default values will be coming from the main Virtuoso tech file - it will be getting these from the two-layer spacing rules. This is done with a statement like:
leTbRules->contact_to_ngate = _leTbGetTFRules( leTbRules->tfId "minSpacing" car( leTbRules->contact_layer ) car( leTbRules->ipoly_layer ) ) leTbRules->contact_to_pgate = leTbRules->contact_to_ngate
in the turbo toolbox rule file.
And in the tech file for your technology library, this would be in the spacingRules section within the physicalRules:
( minSpacing "Poly" "Cont" 0.1 )
In reply to Andrew Beckett:
Thanks a lot.
Actually, I could not exactly figure it out where I should change the 0.0 value to some non-zero value.
In the Turbo rule files I saw,:-
leTbRules->contact_to_pgate = 0.0
leTbRules->contact_to_ngate = 0.0
Shall I make them to non-zero value. Also there are may parameters having ZERO values.
In reply to RFStuff:
Hi RFStuffFor contact_to_gate, you can just set it to the min-spacing value between cont-to-poly if the value can be found in the foundry design rule manual (DRM). In general, you should be able to resolve all the zero value warnings by providing appropriate values for all the fields in the toolbox utility form. If you are just using the basic toolbox editing functions, then it is actually not necessary to resolve all the warnings (e.g. ignoring the warning for pwell_notch, etc) should be fine. : )In general, I think the toolbox should work fine if you provide the values for all the poly/metal interconnect layers.Best regardsQuek
In reply to Quek:
Yes you are right. It is working fine even if the values are ZERO.
However, when I am using some bindkeys with turbo Tool box on, the bind KEy doesn't work or icfb enters into a hang mode.
It also gives warnning that since values are ZERO soms command of Turbo will NOT work properly as I have mentioned earlier in this post.
This prompts me to suspect these ZERO warning stuffs.
It looks like it is taking the bindKeys from the default "/local/samples/" location.
How to make it take the bindKeys as normal Layout XL.
Hi RFStuffWhen starting the toolbox, you can choose not to enable toolbox bindkeys as shown in the form below. If you do not enable toolbox bindkeys, the Virtuoso bindkeys will be retained.Best regardsQuek
Thanks a lot.
Now it is working like a charm.