Re: gEDA-user: please help - can't browse symbols in gschem 1.4.0.20080127
On Sun, 2008-02-03 at 23:58 +0200, Ilan Barak wrote: on opensuse 10.2 and 10.3 installed from RPM add component opens a component selection box, and lists all the available libraries. selecting a library doesn't open the list of options Did you click the arrow expander on the library? Just clicking the library won't expand bring up the contents. The layout has changed somewhat from older gschem versions (although it has been this way for the last few releases). -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: PCB: sudden segfault problems
Hi all, I'm using gschem + PCB (version 20070208) for a project with some 150 components on a 100x160 mm single-sided circuit board. There are several polygons, a few (locked) mounting holes, and a fair number of user-defined footprints. Up until today, PCB was rock solid, but out of the blue, it has developed a very frustrating tendency to suddenly drop dead with a segfault. This only happens when the view is scrolled while copying traces, drawing a polygon and perhaps one or two other operations. The command line just says segmentation fault, nothing else. There are no warning signs either -- one moment I'm working, the next I'm staring at my desktop. Could there be something nasty in the pcb circuit file causing this? I'd be grateful for any help to solve this problem -- it's very uncomfortable working with the feeling that PCB might quit at any time. Thanks in advance, Best regards, Richard Rasker ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: please help - can't browse symbols ingschem 1.4.0.20080127
Thanks Peter, this fixes my problem cheers ilan -Original Message- From: [EMAIL PROTECTED] on behalf of Peter Clifton Sent: Mon 2/4/2008 17:44 To: gEDA user mailing list Subject: Re: gEDA-user: please help - can't browse symbols ingschem 1.4.0.20080127 On Sun, 2008-02-03 at 23:58 +0200, Ilan Barak wrote: on opensuse 10.2 and 10.3 installed from RPM add component opens a component selection box, and lists all the available libraries. selecting a library doesn't open the list of options Did you click the arrow expander on the library? Just clicking the library won't expand bring up the contents. The layout has changed somewhat from older gschem versions (although it has been this way for the last few releases). -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user winmail.dat ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: PCB: sudden segfault problems
On Mon, 2008-02-04 at 18:29 +0100, Richard Rasker wrote: Hi all, I'm using gschem + PCB (version 20070208) You will almost certainly benefit from an upgrade to the latest release, 20080202. As for why it just started happen, good guesses would include a bad polygon in the design, perhaps something degenerate, eg. with coincident vertices, or not enough points. I can't recall what the trigger tended to be. Ben Jackson may remember more, as I recall it may have been him who fixed it. Best wishes, -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: attributes net and refdes, subdesigns, power and ground?
On Sat, 2008-02-02 at 16:52 -0900, Britton Kerin wrote: I have a design with two subcircuits. I pretty much copied the gTAG example but I missed the trick of making a netname=foo wire in the toplevel and then putting an input or output with refdes=foo in the subdesigns, so my +3.3V isn't continuous through my board as intended. The odd thing is that my ground isn't continuous either, and it didn't look as if the gTAG is doing anything special about this? I don't think the gTAG was ever made, so it is possible that there are bugs in it. If you attach an attribute netname=3v3 or some such, to all your 3.3V lines on every page, it should all connect up. I don't think it is the netname=foo = refdes=foo which links up the hierarchy... , look at the pinlabel attribute of the symbol instantiated in the hierarchy. I've not got the details immediately to hand though, so could be wrong. -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: PCB: sudden segfault problems
Op maandag 04-02-2008 om 13:03 uur [tijdzone -0500], schreef DJ Delorie: The way to tell what's happening is to run pcb under gdb: $ gdb pcb ... (gdb) run myboard.pcb ... segfault (gdb) where ... lots of stack dump stuff ... Ah, I think I see what I did wrong: Program received signal SIGSEGV, Segmentation fault. 0x080a22b2 in M_POLYAREA_intersect (e=0xbf8f4ec0, afst=0x8576d58, bfst=0x85efa60, add=1) at polygon1.c:848 848 if (a-contours-xmax = b-contours-xmin (gdb) Indeed, I found a polygon with two edges touching (although not overlapping) itself. After fixing this, the problem appears to be solved. Thanks for the tip with regard to gdb :-) Best regards, Richard Rasker ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: finding shorts with gschem
I did grep -Ri vdd * in the base directory of symbols. I noticed the net=Vdd thing, but in connection with something weird in 4000/. All of these symbols include a net=VDD:?? statement. Does anybody use 4000 series CMOS anymore? But no matter. these net= callouts are attaching the net VDD to pin ??? IIRC. I'm not sure what this would do to your netlist if you put one of these in your schematic and tried to netlist it. Nothing good, I suppose... Your best bet is to fix this callout if you are using a 4000 series part. This created an interesting problem with power/vdd-1.sym which has net=Vdd:1. These statements are not case-insensitive. If you are using the vdd-1.sym symbol in your design, then this attribute is creating a global net called Vdd, whether you want it or not. If you want this, that's fine. If not, then you need to change the name of the net to your desired netname, e.g. net=mynetname:1. Now, in retrospect regarding the request for manual critique, I think there ought to be a chapter specifically on the proper use of symbols in power/. You're likely doing it right. The problem is that some of the symbols have junk in them which doesn't belong. This is an issue with heavy symbols. Caveat Emptor. Stuart ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: finding shorts with gschem
On Sun, 3 Feb 2008, Stuart Brorson wrote: I think I uncovered a subtle bug. I replaced Vdd, Vee, and Vcc with +8V, -8V, and +5V respectively and the problem disappeared. I can't seem to come up with a simple test case though. Just a guess. Take a look through your symbols. I'll betcha that somebody decided to make a heavy symbol and attached a power net directly to Vdd in the symbol. The way to check is to do a grep -R Vdd * in the base directory of your symbols. Then look to see which symbols (if any) have NET=Vdd or something like that in them. I did grep -Ri vdd * in the base directory of symbols. I noticed the net=Vdd thing, but in connection with something weird in 4000/. All of these symbols include a net=VDD:?? statement. This created an interesting problem with power/vdd-1.sym which has net=Vdd:1. These statements are not case-insensitive. The 4000/ symbols in question are 4016-2.sym and 4052-1.sym. Now, in retrospect regarding the request for manual critique, I think there ought to be a chapter specifically on the proper use of symbols in power/. -- David Griffith [EMAIL PROTECTED] A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: PCB Element IDs
On Mon, 2008-02-04 at 16:13 -0500, Ian Chapman wrote: You might want to try a more recent PCB; this was a common problem a while back. Thanks JD, did the September 07 release fix it if not I'll get the Jan 08? Use the 08 version, it fixes a whole bunch of nasty issues. -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: PCB Element IDs
In recent PCBs, there are settings to force the crosshair to ignore all text, or ignore everything except text. Is there a gui click or is it a command to enter? Regards Ian Menu option. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: finding shorts with gschem
On Mon, 4 Feb 2008, Stuart Brorson wrote: I did grep -Ri vdd * in the base directory of symbols. I noticed the net=Vdd thing, but in connection with something weird in 4000/. All of these symbols include a net=VDD:?? statement. Does anybody use 4000 series CMOS anymore? They're the 4016 (Quad analogue switch) and the 4052 (Dual 1/4 CMOS MUX). Can you can suggest suitable 74xx series equivalents? I'm working from a 10-15 year old schematic. But no matter. these net= callouts are attaching the net VDD to pin ??? IIRC. I'm not sure what this would do to your netlist if you put one of these in your schematic and tried to netlist it. Nothing good, I suppose... Your best bet is to fix this callout if you are using a 4000 series part. fix this callout? What do you mean? This created an interesting problem with power/vdd-1.sym which has net=Vdd:1. These statements are not case-insensitive. If you are using the vdd-1.sym symbol in your design, then this attribute is creating a global net called Vdd, whether you want it or not. If you want this, that's fine. If not, then you need to change the name of the net to your desired netname, e.g. net=mynetname:1. Right, but there was the bizarre effect of some object containing net=Vcc:? and net=Vdd:? somewhere, but disappearing when the Vcc and Vdd symbols were not used. That made me suspect there's a problem in the interpretation of the symbol files, not in the symbols themselves. Now, in retrospect regarding the request for manual critique, I think there ought to be a chapter specifically on the proper use of symbols in power/. You're likely doing it right. The problem is that some of the symbols have junk in them which doesn't belong. This is an issue with heavy symbols. Caveat Emptor. Ah... So perhaps I should ask for write access to the CVS to go through and fix this? There are loads of other goofs I keep stumbling over in the standard symbol set, which is part of the reason why I started making my own. -- David Griffith [EMAIL PROTECTED] A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: finding shorts with gschem
On Feb 4, 2008 6:44 PM, David Griffith [EMAIL PROTECTED] wrote: On Mon, 4 Feb 2008, Stuart Brorson wrote: This created an interesting problem with power/vdd-1.sym which has net=Vdd:1. These statements are not case-insensitive. If you are using the vdd-1.sym symbol in your design, then this attribute is creating a global net called Vdd, whether you want it or not. If you want this, that's fine. If not, then you need to change the name of the net to your desired netname, e.g. net=mynetname:1. Right, but there was the bizarre effect of some object containing net=Vcc:? and net=Vdd:? somewhere, but disappearing when the Vcc and Vdd symbols were not used. That made me suspect there's a problem in the interpretation of the symbol files, not in the symbols themselves. The problem is likely to be symbol files that contain embedded power nets. Unless you are doing a large digital board you may want to use symbols that do not contain embedded power nets. I use symbols without the embedded power nets and then place a separate power symbol. I have a script that removes embedded power nets and creates power symbols. See http://www.luciani.org/geda/util/util-index.html (* jcl *) -- http://www.luciani.org ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: PCB Element IDs
You might want to try a more recent PCB; this was a common problem a while back. Thanks JD, did the September 07 release fix it if not I'll get the Jan 08? In recent PCBs, there are settings to force the crosshair to ignore all text, or ignore everything except text. Is there a gui click or is it a command to enter? Regards Ian ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: finding shorts with gschem
On Feb 4, 2008, at 3:41 PM, Stuart Brorson wrote: I did grep -Ri vdd * in the base directory of symbols. I noticed the net=Vdd thing, but in connection with something weird in 4000/. All of these symbols include a net=VDD:?? statement. Does anybody use 4000 series CMOS anymore? Yes: Slow interfaces on noisy cables. Simple logic on unregulated power. Radiation tolerant circuits. High voltage mixed signal circuits. John Doty Noqsi Aerospace, Ltd. http://www.noqsi.com/ [EMAIL PROTECTED] ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: finding shorts with gschem
On Feb 4, 2008, at 4:44 PM, David Griffith wrote: They're the 4016 (Quad analogue switch) and the 4052 (Dual 1/4 CMOS MUX). Can you can suggest suitable 74xx series equivalents? I'm working from a 10-15 year old schematic. There are thousands, most not 74xxx numbers, but a very wide variety of specs and applications. Go to: http://search.digikey.com/scripts/DkSearch/dksus.dll? Cat=2556671;keywords=analog%20switch That'll find you plenty. I can't suggest a specific one without understanding the requirements. John Doty Noqsi Aerospace, Ltd. http://www.noqsi.com/ [EMAIL PROTECTED] ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: finding shorts with gschem
John - On Mon, Feb 04, 2008 at 06:13:51PM -0700, John Doty wrote: Does anybody use 4000 series CMOS anymore? Yes: Slow interfaces on noisy cables. Simple logic on unregulated power. Radiation tolerant circuits. High voltage mixed signal circuits. /me nods head Right, where high voltage means more than 3.3V. - Larry1/2 ;-) ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
