Thursday, January 08, 2009     Register | Login | Search | Contact Us
     
   
     
     

Many of you already received communications about the move of the Cadence user community into cadence.com. And many of you have already joined, with over 4000 registrations in the first two weeks.

The new Cadence Community enhances the ability of Cadence users to connect and collaborate. In addition to moving the community into cadence.com -- enabling single sign-on for community, Sourcelink and Cadence events -- the new site is organized around nine technology segments, giving you easy access to product information, training, forums and blogs. Some of the new features include:
  • Ability to respond to posts via e-mail
  • Technology-specific blogs
  • Latest Web 2.0 social networking capabilities
  • Public profile options
  • Private messaging
  • Friends lists
Visit the new Cadence Community today at www.cadence.com/community and join the discussions!

Registration note: Due to the scope of the enhancements and the new SSO registration system, we were not able to migrate existing cdnusers.org member accounts. So new registrations are required, but this enables a broader set of functionality we think you'll enjoy.

Forum note: Under the guidance of forum moderators, we have taken the 20+ cdnusers.org forums and consolidated them into 11 forums on the new site. Posts have been brought over so you can leverage that posting history. CDNusers forums will be set to read only starting 7/30, and cdnusers.org will be redirected to the new community on 8/4.

Best regards,
Mike and Tom

Michael A. Catrambone - Steering Committee Chairman
Distinguished Engineer
PCB/Mechanical
UTStarcom, Inc.

Tom Diederich
Cadence Community Manager
Home
Forums
Forums > Digital IC > Floorplanning, Place and route

Subject: Restricting metals from Nanoroute
Posting to forums is available to community members only.
Login or Register
Rate this topic:
   
Author Messages
mboudreaux
Posts: 11
Online: User is Offline
3/26/2008 2:06 PM  
My design is performance intensive, but the lowest level of metal is highly resistive so I want to avoid using it as much as possible. How can I instruct nanoroute from within Encounter to avoid a level of metal as much as possible? Would be nice to say "Any net switching more than 1 GHz should not have any Mx".. Thus letting the resistive metal be used for the slower testclocks and testsignals in the design. Hope someone can help! Thanks!
Kari
Posts: 81
Online: User is Offline
3/27/2008 8:35 AM  
Have you tried this nanoroute option:

********************
-routeBottomRoutingLayer layerNumber

Specifies the lowest layer the NanoRoute router uses for global and detailed routing.

If the design has pins below the layer specified by this parameter, and if the tracks for the in-between layers are aligned to allow stacked vias to be dropped directly on top of the pins, the router uses stacked vias. However, if the tracks are not aligned, the router adds a short piece of wire before dropping a via to go to the next layer.
Default: 0
****************
It will apply to your whole design, not just your high-speed nets, but it may serve the purpose as long as you don't rely on a lot of the lower level metal for other routes.
Posting to forums is available to community members only.
Login or Register
Forums > Digital IC > Floorplanning, Place and route > Restricting metals from Nanoroute


ActiveForums 3.6
     
Copyright 2006 Cadence Design Systems, Inc.