Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Help: Cadence Layout XL connectivity doing stupid things

Status
Not open for further replies.

allanvv

Advanced Member level 4
Joined
Oct 23, 2010
Messages
108
Helped
14
Reputation
28
Reaction score
12
Trophy points
1,298
Location
USA
Activity points
2,078
I have a layout for series resistors with instance names like:

|R1 |R2 |R3 |R4

In my schematic I have four resistors with the nets inbetween named t0, t1, t2. I have the connectivity of these nets well defined in Layout XL.

I go to Connectivity->Check->Against Source, and it says there are 0 differences. Then I go to Connectivity->Update->Components and Nets and hit OK. You'd think it wouldn't actually do anything right? Well, it changes my layout instance names to:

|R1 |R3 |R2 |R4

And the routing is no longer in series. When I manually change the names back and hit update again, it repeats this. If I try to outsmart it by making my schematic R1, R3, R2, R4, and then I hit update, my layout automatically becomes R1, R2, R3, R4 and the routing is still messed up. For some reason it's insisting on forcing the layout instances to be in this order. This even happens when I delete all net connectivity information from the layout before trying to update. Anyone knows what is going on here? Running version 6.1.4.
 
Last edited:

If you don't get an answer either here or on your thread in the . I guess they will happily answer!
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top