Stats

  • Locked Locked
  • Replies 7
  • Subscribers 165
  • Views 15405
  • 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

Fanout by Pick creating duplicate vias

mvonahnen

 I am getting a strange problem when I use Fanout by Pick.  When I fanout a new part, it adds vias to previously fanned out parts, stacking multiple vias on top of each other.

 I have deselected the previously fanned out part and even have done other commands in between the Fanout commands.

 Has anybody else seen this?

  • lcanx2
    Have you tried the Create Fanout command?

    I find that I can control the location of the Fanout vias as well as the Pin to Via distance quicker with this tool than with Fanout by Pick.

    With this command I’ve also not seen the issue you describe.

    Bill
  • mvonahnen

     Yes, I uses them both.  I needed the DRC checking capability of Fanout by Pick.  I am just wondering if this has been submitted as a bug yet.

  • steve

    What version of Allegro/Orcad are you using ? I just tried this on 16.01 and 16.2 and cannot get the replication. Also what DRC checking does Fanout by pick give you that create fanout does not ?

  • mvonahnen

     I am running 16.01.

     Concerning the DRC checking,  Create Fanout does not check for DRC errors, so if your fanout puts you on other pins, components, etc, too bad.

     Fanout by Pick will route around the other items on the board.

  • mvonahnen

     I have a new issue.  Now running SPB 16.2 and I want to fanout a BGA in a constraint region.  When I select the part for Create Fanout (I get very bad results using Fanout by pick, the distance from the pin to the via is too long), it does not select the smaller size via that I need to use.  The via is defined for the constraint region.

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.