[PCB_FORUM] Re: "Line-to-Line spacing" of one dif pair to anything else
- From: Michael.Catrambone@xxxxxxxxxx
- To: icu-pcb-forum@xxxxxxxxxxxxx
- Date: Wed, 1 Feb 2006 07:42:19 -0600
Mark, You will need to setup a NET_SPACING_TYPE Constraint Set to handle the Diff Pair to anything else. Basically, the Min Line Spacing value inside of Constraint Manager should be set below the minimum Diff Pair gap to avoid false DRC errors between the two nets in the Diff Pair when using a NET_SPACING_TYPE Constraint to control Diff Pair to Diff Pair spacing. Michael Catrambone UTStarcom, Inc. Mark Salberg <msalberg@xxxxxxxxxxxx>@freelists.org on 02/01/2006 05:07:16 AM Please respond to icu-pcb-forum@xxxxxxxxxxxxx Sent by: icu-pcb-forum-bounce@xxxxxxxxxxxxx To: icu-pcb-forum@xxxxxxxxxxxxx cc: Subject: [PCB_FORUM] Re: CM delta:Tolerance Another question for the group. How do I set up "Line-to-Line spacing" of one dif pair to anything else? Min Line Spacing: I tried setting MIN LINE SPACING to 20mil, but it wants this to be less than specified gap. I want Gap (10mil) and width (4mil) as specified, but dp to anything els to be (20mil). Do I have to set as NET_SPACING_TYPE? Thanks, Mark Mark Salberg wrote: > Actually, I want 1500mil shorter than target as minimum length and > target length as max. > > I think I will use -750:750 suggested by Daniel so my actual target > is in the middle of the spec. > > Thanks for all the responses. > > Mark > > the specified nets to be matched to the taget length as a max and > 1500mil shorter than the target as min. > Davies, Charles (cdavies) wrote: > >> Mark, >> >> If you want the specified net to be 1500 mil shorter than the target, >> you need to set the delta to -1500. The tolerance is then applied to >> the length. >> >> Charlie >> -----Original Message----- >> From: icu-pcb-forum-bounce@xxxxxxxxxxxxx >> [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Mark Salberg >> Sent: Tuesday, January 31, 2006 3:38 PM >> To: Cadence User Group >> Subject: [PCB_FORUM] CM delta:Tolerance >> >> >> Can anyone tell me the correct way to define a matched group in >> Constraint Manager? >> I need to match a target to "same length as target" to "-1500mil of >> the target"? >> I tried 0:-1500 for delta:tolerance, but it is not working right. >> >> Thanks in advance, >> Mark >> >> >> ________________________________________________________________________ >> _____ >> Scanned by IBM Email Security Management Services powered by >> MessageLabs. For more information please visit http://www.ers.ibm.com >> ________________________________________________________________________ >> _____ >> ----------------------------------------------------------- >> To subscribe/unsubscribe: Send a message to >> icu-pcb-forum-request@xxxxxxxxxxxxx >> with a subject of subscribe or unsubscribe >> >> To view the archives of this list please login at >> //www.freelists.org. Our list name is icu-pcb-forum or go to >> //www.freelists.org/archives/icu-pcb-forum/ >> >> Problems or Questions: >> Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxx >> >> Want to post a job listing ? DON'T DO IT HERE! Better yet, join our >> jobs listing forum. >> >> SUBSCRIBE: icu-jobs-forum-subscribe@xxxxxxxxxx >> POST: icu-jobs-forum@xxxxxxxxxx >> ----------------------------------------------------------- >> ----------------------------------------------------------- >> To subscribe/unsubscribe: Send a message to >> icu-pcb-forum-request@xxxxxxxxxxxxx >> with a subject of subscribe or unsubscribe >> >> To view the archives of this list please login at >> //www.freelists.org. Our list name is icu-pcb-forum >> or go to //www.freelists.org/archives/icu-pcb-forum/ >> >> Problems or Questions: >> Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxx >> >> Want to post a job listing ? DON'T DO IT HERE! Better yet, join our >> jobs listing forum. >> >> SUBSCRIBE: icu-jobs-forum-subscribe@xxxxxxxxxx >> POST: icu-jobs-forum@xxxxxxxxxx >> ----------------------------------------------------------- >> >> _____________________________________________________________________________ >> >> Scanned by IBM Email Security Management Services powered by >> MessageLabs. For more information please visit http://www.ers.ibm.com >> _____________________________________________________________________________ >> >> >> >> > > > _____________________________________________________________________________ > > Scanned by IBM Email Security Management Services powered by > MessageLabs. For more information please visit http://www.ers.ibm.com > _____________________________________________________________________________ > > ----------------------------------------------------------- > To subscribe/unsubscribe: Send a message to > icu-pcb-forum-request@xxxxxxxxxxxxx > with a subject of subscribe or unsubscribe > > To view the archives of this list please login at > //www.freelists.org. Our list name is icu-pcb-forum > or go to //www.freelists.org/archives/icu-pcb-forum/ > > Problems or Questions: > Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxx > > Want to post a job listing ? DON'T DO IT HERE! Better yet, join our > jobs listing forum. > > SUBSCRIBE: icu-jobs-forum-subscribe@xxxxxxxxxx > POST: icu-jobs-forum@xxxxxxxxxx > ----------------------------------------------------------- > > _____________________________________________________________________________ > > Scanned by IBM Email Security Management Services powered by > MessageLabs. For more information please visit http://www.ers.ibm.com > _____________________________________________________________________________ > > _____________________________________________________________________________ Scanned by IBM Email Security Management Services powered by MessageLabs. For more information please visit http://www.ers.ibm.com _____________________________________________________________________________ (See attached file: C.htm)(Embedded image moved to file: pic18756.pcx) (Embedded image moved to file: pic11840.pcx)
|
Another question for the group. How do I set up "Line-to-Line spacing" of one dif pair to anything else?
I tried setting MIN LINE SPACING to 20mil, but it wants this to be less than specified gap. I want Gap (10mil) and width (4mil) as specified, but dp to anything els to be (20mil). Do I have to set as NET_SPACING_TYPE? Thanks, Mark Mark Salberg wrote: Actually, I want 1500mil shorter than target as minimum length and target length as max. |
- Follow-Ups:
- [PCB_FORUM] Re: "Line-to-Line spacing" of one dif pair to anything else
- From: Mark Salberg
- [PCB_FORUM] Re: "Line-to-Line spacing" of one dif pair to anything else
- References:
- [PCB_FORUM] Re: CM delta:Tolerance
- From: Mark Salberg
- [PCB_FORUM] Re: CM delta:Tolerance
Other related posts:
- » [PCB_FORUM] Re: "Line-to-Line spacing" of one dif pair to anything else
- » [PCB_FORUM] Re: "Line-to-Line spacing" of one dif pair to anything else
- » [PCB_FORUM] Re: "Line-to-Line spacing" of one dif pair to anything else
