I'm not sure how to respond. I use the short ciruit rule for standard DRC and it has not given me problems. I must admit, however, that I pay more attention to the clearance contraint when correcting errors than the short circuit constraint. And once one is fixed, the other is fixed. It's set up by default, and I only tend to pay attention to it when situations like the one noted below come up. Because I do mostly DUT boards, there is not much variation in my design rules.
Dan B. ----- Original Message ----- From: "Brad Velander" <[EMAIL PROTECTED]> To: "'Protel EDA Forum'" <[EMAIL PROTECTED]> Sent: Thursday, April 25, 2002 4:30 PM Subject: Re: [PEDA] FBGA fan outs with no net name > Dan, > have you found some certain condition where the Short circuit > constraint works? Previously most of us have thought it was broke (a bug), > because we could not get it to do anything correctly in the circumstances > that we tried. > > Sincerely, > Brad Velander. > > Lead PCB Designer > Norsat International Inc. > Microwave Products > Tel (604) 292-9089 (direct line) > Fax (604) 292-9010 > email: [EMAIL PROTECTED] > http://www.norsat.com > > Visit us at Booth 2G2-09 at CommunicAsia 2002 in Singapore June 18-21. > > > > -----Original Message----- > > From: Dan Beaudoin [mailto:[EMAIL PROTECTED]] > > Sent: Thursday, April 25, 2002 4:09 PM > > To: Protel EDA Forum > > Subject: Re: [PEDA] FBGA fan outs with no net name > > > > > > Yes. In Design Rules go to Other tab and select Short > > Circuit Constraint. > > When you pull it up, change both of the Objects Filtered > > boxes to say Net > > Class rather than Whole Board and select All Nets. That will > > get rid of the > > error. However, I would wait until the rest of the DRC is > > clean, because if > > some net gets tied to a free primative (tooling hole or such) > > that has no > > net, it will not report it as an error, and you could end up > > with an open on > > the final project. Of course, if everything on the board is > > a component, it > > should not be a problem. > > > > Dan B. > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://email@example.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *