Stats

  • Locked Locked
  • Replies 4
  • Subscribers 164
  • Views 19091
  • Members are here 0
More Content
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Create and or Highlight Net Classes in Schematic

teevskis

I have three questions that are related:

1. If I create net classes in Allegro using CM, is there a way to highlight these net classes in the schematic?

2. To speed creation of net classes in CM, is there a way to highlight nets in schematic and then assign the highlighted nets to a net class in CM?

3. In lieu of #1 and #2, is there a way to create net classes in schematic that will get carried over to the board file and CM? (In a previous life I used PCAD 2000, which had a very intuitive way of dealing with net classes that addressed all of my questions here.  I would be surprised if Allegro didn't have similar functionality.)

It is very tedious making notes of auto-assigned net names and then assigning them to net classes.

I am currently using Allegro version 16.6 and Design Entry CIS.

  • steve
    The best option you have is to select the nets in DE CIS then Edit - Properties and add new properties NET_SPACING_TYPE and NET_PHYSICAL_TYPE. These will drive the NETCLASS for spacing and physical in Allegro. You can also create the netclasses in Allegro (as you have been doing so) and these are back annotated into the schematic (In DE CIS use Tools - Back Annotate). There are options in Allegro to display items based on Netclass (Find Filter - Find by Name - Netclass) but these are not highlighted in DE CIS (you might want to raise an enhancement request with Cadence / Channel Partner).
  • teevskis
    Thanks Steve, I never noticed that the NET_x_TYPE properties came back through back annotation. While adding these to nets in DE CIS is a little cumbersome, it makes the process easier than before and lets the schematic drive the PCB design. One additional question: how do I raise an enhancement request? This seems like an obvious feature they should have, especially the cross-application highlighting.
  • steve
    For enhancement requests if you are a direct Cadence customer in maintenance, log into www.support.cadence.com and there should be an option to create a case. If you bought through a Channel Partner (example EMA for US, Parallel Systems for UK) talk to the support team and they can do this for you.
Cadence Guidelines

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. 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. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.