Stats

  • State Suggested Answer
  • Replies 7
  • Answers 1
  • Subscribers 161
  • Views 10631
  • Members are here 0
More Content

Heads up Display

WallyWare

I'm trying to route some differential pairs in Allegro 17.4 and want to ensure my phase error is less than the specified MAX. Everything I'm reading and seeing online refers to a heads up display that shows my trace length differences as I route my net pair but I'm not seeing this. I'm also not seeing a dynamic phase column in the Electrical tab of the constraint manager. Do I need an add-on to do these things or have I failed to enable something?

Parents
  • WallyWare
    0 in reply to Robert Finley

    I'm not sure where that is - here's what I do have:

    1) In my Design Workflow - Timing window, both Delay Tune and Timing Tune are greyed out.

    2) Under my Design Parameters - Route tab, I have a Delay Tune option that lets me set the style and allow DRCs 

    3)  And, under Analysis Modes - Electrical, All Differential Pair Checks is ON

Reply
  • WallyWare
    0 in reply to Robert Finley

    I'm not sure where that is - here's what I do have:

    1) In my Design Workflow - Timing window, both Delay Tune and Timing Tune are greyed out.

    2) Under my Design Parameters - Route tab, I have a Delay Tune option that lets me set the style and allow DRCs 

    3)  And, under Analysis Modes - Electrical, All Differential Pair Checks is ON

Children
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.