Wednesday, February 08, 2012     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 > Silicon-package-board > PCB Design

Subject: Route Editor
Posting to forums is available to community members only.
Login or Register
Rate this topic:
   
Author Messages
harish.mellacheruvu@hcl.in
Posts: 13
Online: User is Offline
4/18/2008 3:00 AM  
Dear all,

Iam using the Route editor for the firs time and going for autorouting in that.

My problem is
In electrical spreadshet, I defined Buses like DATABUS_0 (for data signals 0 to 7 , DM and DS#). Similarly created buses for other signals also and then created Layer sets and assigned that to respective buses.

For example, for the class DATABUS_0, i've defined layerset using signal layers 3 and 4.But when I take this board file into route editor, nowhere that layerset contraint is seen. so again i defined layer sets in route editor. but even now,its not working. when i give "autoroute" command, the signals of DATABUS_0 were routed in
Signal layers 1 and 2.

Please guide me in this.
Thanks to all in advance.
BillZ_EMA
Posts: 51
Online: User is Offline
4/18/2008 5:33 AM  
Hi
Alot of this depends on the level of the router you have. It sounds like you need the ADV option for the router.
Contact your VAR and they can confirm this.
Regards,
BillZ
EMA Design Automation
harish.mellacheruvu@hcl.in
Posts: 13
Online: User is Offline
4/18/2008 9:28 PM  
Thanks for the reply.
I'll check with VAR.
But i checked with "route automatic" option in pcb editor itself.
But the same thing happens here. Routing not happens in the requested layer.
So i doubt whether iam doing that layer set option in correct way.
Can you please explain how to do this?
redwire
Posts: 73
Online: User is Offline
4/23/2008 3:41 PM  
As he says, you have to have an upgraded option for ROUTE_BY_LAYER which is what you are looking for. Specctra will ignore you (with a pop-up box) and will route however you want.

But, there is a 'cheat' method. If have fanned out your signals, you can select just these nets and turn off all other layers for route and Specctra will just use the selected layers. Then fix those nets and Specctra won't rip them up once you turn on all other layers for route.
Posting to forums is available to community members only.
Login or Register


ActiveForums 3.6
     
Copyright 2006 Cadence Design Systems, Inc.