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Re: How can I make ERC ignore the no connects n the output pins ?
Nicolas Canonne
¿ªÔÆÌåÓýProbably by adding "non-connexion pin" ( blue x symblom) to these pins in EESchema ?Nicolas Le 12/04/2012 15:02, Dan Roganti a ¨¦crit?: ? |
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Re: How can I make ERC ignore the no connects n the output pins ?
Peter Bennett
Place a "No Connect" flag (under the "Place" menu, or Ctrl-Q) on pins that are not connected.
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On 4/11/2012 9:02 PM, Dan Roganti wrote:
--
Peter Bennett, VE7CEI Vancouver, B.C., Canada GPS and NMEA info: Vancouver Power Squadron: |
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How can I make ERC ignore the no connects n the output pins ?
How can I make ERC ignore the no connects on the output pins of my design ?
I'm not sure if this is a wise step. But it's kind of confusing to see all of these messages about pins which I'm not using in my design. I tried to edit the rules in the ERC options by changing the 'No Connect' Rule on the last row from 'E' to 'Green' But it still doesn't ignore them. These 'no connect' messages are simply output pins which aren't used in the design. Is there something else I need to change ? =Dan |
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Re: problems running on Windows XP and Mac OS X
I cannot speak for Mac but I can verify that it all works?just fine on XP inside VirtualBox (it?is free and available for Mac too). The only slow part is starting VM itself (~25sec measured on my puny G570, it is faster on my desktop).? Once VM with XP is loaded I see little if any difference in KiCad performance between VM and native OS. Everything is presented correctly, and 3D view is clean and smooth as it gets, same goes for Wings3D. Perhaps your VM is not set correctly. How much resources you have assigned to it? VMWare should also addon to accelerate video performance.?Did
you install it? I don't use it much so I gave it generous 512Mb of RAM, video memory set to 32Mb,? with 2D and 3D acceleration enabled (requires installing VirtualBox Guest additions) and virtual HDD still has 2.5Gb free. Good Luck From: software_hardware_engineer To: kicad-users@... Sent: Wednesday, April 11, 2012 12:31:54 PM Subject: [kicad-users] problems running on Windows XP and Mac OS X
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I am new to Kicad, so hopefully the following issues are user error.
I use a Macbook Pro 17 with Snow Leopard, and Windows XP sp3 running in a VMWare Fusion virtual machine. I have Kicad build 3256 on Windows, 3411 on the Mac. On the Mac version: Eschema does not render the drawing properly, traces and components end up in seemingly random places that are not where I put them. In WinXP: Kicad, and all its launched tools take a long time to start, up to 2 minutes at times. Once started they run smoothly with no notable delays. PCBnew 3D view crashes windows, specifically windows locks up in a manner that requires re-booting. Wings 3D (ver 1.4.1) appears to work with no problems. Kicad seems to be a very good tool, I appreciate the time and work that created it. Thanks for any help on the issues. |
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problems running on Windows XP and Mac OS X
I am new to Kicad, so hopefully the following issues are user error.
I use a Macbook Pro 17 with Snow Leopard, and Windows XP sp3 running in a VMWare Fusion virtual machine. I have Kicad build 3256 on Windows, 3411 on the Mac. On the Mac version: Eschema does not render the drawing properly, traces and components end up in seemingly random places that are not where I put them. In WinXP: Kicad, and all its launched tools take a long time to start, up to 2 minutes at times. Once started they run smoothly with no notable delays. PCBnew 3D view crashes windows, specifically windows locks up in a manner that requires re-booting. Wings 3D (ver 1.4.1) appears to work with no problems. Kicad seems to be a very good tool, I appreciate the time and work that created it. Thanks for any help on the issues. |
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Re: Cannot connect pads to GND plane
Ok, I have tried the first one, starting a track from a pad with GND net. It does not let me put a via at the heat sink pad, I can put anywhere on a free area, but not on that pad... will try the other one. peter From: Andy Eskelson To: kicad-users@... Sent: Tuesday, April 10, 2012 10:38 AM Subject: Re: [kicad-users] Cannot connect pads to GND plane
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I expect that there are a few workarounds to this problem,
Connecting vias to specific nets has been described many times, generally the method is to route a thin track starting at a point on the net you want and just joining the vias up. This is usually done when you want to create a zone. For the diode, the basic problem is that you are trying to use what eeschema knows as a two terminal device as a three terminal device. What I would do is create a modified eeschema component and add a pin to it to represent the tab. You can then connect that pin to whatever net you want in eeschema. That will then keep the netlist happy. Kicad is really several individual programs, which use the netlist to pass information between them. If you start adding the ability to connect to named nets in pcbnew, you could make life rather difficult if you modify the eeschema diagram and reload the netlist. You can turn off DRC if you wish, but doing so throws out a lot of protection. Andy On Thu, 29 Mar 2012 23:26:33 -0000 "tengerkek" <tengerkek@...> wrote: > Hi all, > > I have a custom footprint of a high power led, similar to DPAK case. Pins are A and K, tab is heat sink. I want to make vias on this pad to the GND plane for heat sinking. > If i only add pads in pcbnew, these pads are disconnected from the GND plane uppon DRC check. If i add vias to the module in the module editor, i cannot assign a net name for this pad, as it gives me an error: Unknown net name, netname not changed. > > So it seems i am in a trap, can anybody help with an idea, pls? > > BTW, I think pcbnew is too strict in this aspect, we should be able to assign net to any wire or pad, even without a netlist, but maybe that's just my oppinion :) > I used protel in the 1990s and i remember i was able to do this there. > This would add some flexibility for sure. > > Thx for reading, > > peter > > > > > ------------------------------------ > > Please read the Kicad FAQ in the group files section before posting your question. > Please post your bug reports here. They will be picked up by the creator of Kicad. > Please visit http://www.kicadlib.org for details of how to contribute your symbols/modules to the kicad library. > For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-develYahoo! Groups Links > > > |
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Re: Cannot connect pads to GND plane
Thank you, Andy. I will try some of these. In fact I already tried the first one, i started the vias from the bottom layer where there already is a GND plane, but it got disconnected from the plane after the drc. I will try to start from another gnd connection. peter From: Andy Eskelson To: kicad-users@... Sent: Tuesday, April 10, 2012 10:38 AM Subject: Re: [kicad-users] Cannot connect pads to GND plane
?
I expect that there are a few workarounds to this problem,
Connecting vias to specific nets has been described many times, generally the method is to route a thin track starting at a point on the net you want and just joining the vias up. This is usually done when you want to create a zone. For the diode, the basic problem is that you are trying to use what eeschema knows as a two terminal device as a three terminal device. What I would do is create a modified eeschema component and add a pin to it to represent the tab. You can then connect that pin to whatever net you want in eeschema. That will then keep the netlist happy. Kicad is really several individual programs, which use the netlist to pass information between them. If you start adding the ability to connect to named nets in pcbnew, you could make life rather difficult if you modify the eeschema diagram and reload the netlist. You can turn off DRC if you wish, but doing so throws out a lot of protection. Andy On Thu, 29 Mar 2012 23:26:33 -0000 "tengerkek" <tengerkek@...> wrote: > Hi all, > > I have a custom footprint of a high power led, similar to DPAK case. Pins are A and K, tab is heat sink. I want to make vias on this pad to the GND plane for heat sinking. > If i only add pads in pcbnew, these pads are disconnected from the GND plane uppon DRC check. If i add vias to the module in the module editor, i cannot assign a net name for this pad, as it gives me an error: Unknown net name, netname not changed. > > So it seems i am in a trap, can anybody help with an idea, pls? > > BTW, I think pcbnew is too strict in this aspect, we should be able to assign net to any wire or pad, even without a netlist, but maybe that's just my oppinion :) > I used protel in the 1990s and i remember i was able to do this there. > This would add some flexibility for sure. > > Thx for reading, > > peter > > > > > ------------------------------------ > > Please read the Kicad FAQ in the group files section before posting your question. > Please post your bug reports here. They will be picked up by the creator of Kicad. > Please visit http://www.kicadlib.org for details of how to contribute your symbols/modules to the kicad library. > For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-develYahoo! Groups Links > > > |
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Re: How to delete module from library?
rohchar
Hi,
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you have the same issue with dots : If you want to add an existing lib file named ie CHIP.ALT1 and another named CHIP.ALT2, you are able to add them in the Pref. Lib. window, but at the moment you save the .pro file, you get an error message. The lib files are correctly added in .pro file. The issue is when Kicad tries to loads the listed libraries. Charles. --- In kicad-users@..., "Robi" <rob_27_zg@...> wrote:
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Re: Printing problem for small components
Try going into "visibles", select "render" and deselect the "anchors" box.
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That should remove the dots. Regards, Ian H --- In kicad-users@..., "m_beischer" <magnus@...> wrote:
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Re: Printing problem for small components
Andy Eskelson
The small mark is the centre point that is defined when you create the
module. This is used for auto pick-and-place systems. It looks like the print functions always output this mark. I would suggest that you PLOT to postscript then convert to PDF from there, as the plot output does not show the centre mark. Andy On Tue, 10 Apr 2012 08:45:00 -0000 "m_beischer" <magnus@...> wrote: When I print the pcb (to a pdf) I get small dots often in the center of the components. This is not a problem for 'large' components where the text is large, but for all my 0402 components the text needs to be so small that the center dot makes the text nearly not readable (e.g. 'R100' for a 0402 resistor). |
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Printing problem for small components
When I print the pcb (to a pdf) I get small dots often in the center of the components. This is not a problem for 'large' components where the text is large, but for all my 0402 components the text needs to be so small that the center dot makes the text nearly not readable (e.g. 'R100' for a 0402 resistor).
Is there a way to print (make a pdf) without the 'center' dots? Magnus |
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Re: Cannot connect pads to GND plane
Andy Eskelson
I expect that there are a few workarounds to this problem,
Connecting vias to specific nets has been described many times, generally the method is to route a thin track starting at a point on the net you want and just joining the vias up. This is usually done when you want to create a zone. For the diode, the basic problem is that you are trying to use what eeschema knows as a two terminal device as a three terminal device. What I would do is create a modified eeschema component and add a pin to it to represent the tab. You can then connect that pin to whatever net you want in eeschema. That will then keep the netlist happy. Kicad is really several individual programs, which use the netlist to pass information between them. If you start adding the ability to connect to named nets in pcbnew, you could make life rather difficult if you modify the eeschema diagram and reload the netlist. You can turn off DRC if you wish, but doing so throws out a lot of protection. Andy On Thu, 29 Mar 2012 23:26:33 -0000 "tengerkek" <tengerkek@...> wrote: Hi all, |
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Re: Cannot connect pads to GND plane
If I've understood you correctly then the correct way to do this is to create a component in EESchema which has three pins, one for anode and cathode, and a third one for the tab (these pins can have short names as "pin numbers", such as A for the anode). You will probably want to make the ground pin a hidden power pin (ie one that isn't normally visible but Kicad will know it is connected to ground without you connecting an EESchema wire). Then do your schematic and board design in the way the kicad is best used (ie with a a proper netlist and DRC), and all will work nicely.
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As soon as you open up a hole in the protection that a netlist and design rule checking offers you, you create the opportunity for making a mistake and creating an expensive piece of scrap. So in being seemingly awkward kicad is in fact helping you to avoid costly mistakes. Regards, Robert. On 30/03/2012 00:26, tengerkek wrote:
Hi all, --
() Plain text email - safe, readable, inclusive. /\ |
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Re: How to delete module from library?
--- In kicad-users@..., Charles Goyard <cg@...> wrote:
I found out the problem! KICAD has issues with module names, does not tolerate the spaces!! And recently the bug is known to the developer crew post #5 So names with spaces create some real mess that cannot be cleaned up! |
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Re: It's there any newer eagle to kicad library converter ?
--- In kicad-users@..., "Andrew" <andrwpodm@...> wrote:
Me too. I converted the library again with eagle-lbr2kicad-0.9d.ulp. For eagle V6 you have to use my version eagle-V6-lbr2kicad-0.9d.ulp as the internal representation of some geometric values has changed. The DRAW-error is fixed, but some models have duplicate entries. I have not investigate this issue jet, as it works anyways. Regard Helmut By the way: where can I attach the files? |
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Re: I know that this is not kicad related
Andy Eskelson
I must admit that I was a bit concerned about that myself, but the specs.
on perspex indicated that it was quite transparent to the long UV wave that the photo resist is sensitive to. Also the resist is very forgiving regarding exposure. I use 160 seconds exposure with my UV box, When I tried with the perspex it did not seem to make any real difference, I do add 15 secs just to be sure :-) Obviously the exposure time will vary depending on your box and tubes. Mine is just 2 x 15 W Tubes which are spares for the Mega units, only cost 15 pounds for the pair. I gutted an DIY store "specials" bin cheap lamp unit for the choke, and built the lot into an old flatbed scanner case. Andy On Sun, 08 Apr 2012 21:33:25 +0300 "Anders Gustafsson" <anders.gustafsson@...> wrote: "Just two sheets of 12mm thick |
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Re: I know that this is not kicad related
Andy Eskelson
I use my OKI colour laser, and the toner seems to form a solid block so
it's very good. I've seen other printers that do produce a more "powder like fill, might be to do with toner saving and so on. I can easily get down to 8th lines, so not really a problem. At home I don't mess with vac. frames. I made a perspex press to clamp the boards between it they are big., Just two sheets of 12mm thick perspex with some thumbscrews. For smaller boards, I place a 50mmx50mmx150mm block of steel on the board. That keeps things flat enough :-) Andy On Sat, 07 Apr 2012 20:08:57 +0300 "Anders Gustafsson" <anders.gustafsson@...> wrote: Yes, tracing paper (Vellum) is superior to OH-film. Another thing that makes a great difference is the printer. My lowly HP LJ1022 gives much darker blacks than the fancy colour printer at work. So I use my home printer for all PCB work. I frequently create prototype boards with TSSOP and DFN footprints with good results. Only thing I really need to add is a vaccum frame as the artwork sometimes do not lay perfectly flat, resulting in a botched PCB. |
Anders
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