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 starting to get more familiar with Allegro's PCB Designer, but I'm still quite confused about the way text is handled.
Looking at one particular example:
In OrCAD Layout 10, I had silkscreen text built in to my footprints. This text had a certain height and line width and when I placed the part in Layout, I could position the text appropriately. When generating artwork, it was treated just like any other object on the silkscreen layer and this all worked great.
Moving into OrCAD PCB Designer 16.5, my footprints also have text reference designators on the silkscreen layer. They all use a default text block 2 (width 23, height 31, line space 39, photo width 0, char space 8). Suppose want to use 8 mil width on all of this text. How can I see what that would look like so I can move text around appropriately? Once I have my text positioned correctly and I'm ready to generate artwork, how do I get the text to show up? Currently, even though I have my "Undefined line width" set to 8.0 for the silkscreen film, no text will show up in my gerbers... What am I missing here?
I get the impression that the Allegro method of handling text is supposed to be powerful, but I'm just not understanding how it's intended to be used.
Text Blocks, set the Photoplot width as required, for "some" defaults, use 4, 6, 8, 10 and so on for the default Text Blocks, these will not then use the "undefined line width".
In the Artwork configuration, the "Undefined line width" is "per film", you need to set this for each film where you want to override any 0 width details with a specified value.
In reply to oldmouldy:
From a design theory standpoint, when should I be taking advantage of the undefined line width and when should I force a width by setting the photoplot?
Is there any way to 'preview' what text with undefined line width will look like at various overrides widths? I just don't see a way to position text correctly without it...
Also, it appears the artwork is fine - I didn't realize Designer changes filenames for artwork (rather than overwriting existing artwork files). I think I was just looking at some old artwork files I'd generated earlier. Sorry for the confusion.