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John,
I'm just learning the whole KiCad process right now, so I might not understand it correctly myself. But as I understand it... the schematic only creates a netlist. The next step assigns physical part footprints to each part in the netlist. The PCB layout is it's own design, the netlist is only used to assist you when laying traces and to report errors in case you miss a pin or cross short two separate nets. I think it also doesn't let you draw a trace between pins unless they are in the same net. I found that out when I was manually drawing a board, which is why I just turned off rule checking. So, to answer your question. You've changed the schematic, now you are looking at the board. In the board editor, it should report the differences in the netlist as errors until you up manually change the PCB traces to match the new netlist. The part I don't understand myself...yet... is how to swap similar gates in the PCB (to make traces simpler) and reverse annotate those changes back to the schematic. I'm sure the program should be able to do that... View traces on the front? Do you get that "Visible" Menu on the PCB editor? just click off everything but the Front Copper (F.Cu). Make pdf from sch? You should just be able to plot the .sch right? Do you have a program called PDFCreator? It's free, it works like a printer, any program can print to it and create a PDF. Cheers, Josh From: mon...@vitasoft.org To: n8vem...@googlegroups.com Subject: [N8VEM-S100:3729] Using KiCad Date: Mon, 19 May 2014 22:00:42 -0700 Hi Ed (and anybody else familiar with KiCad), I managed to get the schematic part of KiCad to correct/modify the schematic for this board, (See attached). Now I need to review the layout. Using PCBnew.
My first question is:- Is the program intelligent enough to utilize the previous board layout and just not optimize the above slight modification or does one have to start from scratch each time. The reason I don’t know is I cannot figure out how to view the traces on the front side of the board. I’m always getting the back (vertical,green) traces of the board. How do you switch sides?
Also how do you make a .pdf file from a .sch file?
John
From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com] On Behalf Of John Monahan
Ed, going to give it a try too… On “DRC”, Is it Preferences/General Settings/”Enforce design rules when routing” Which icon (counting from, say top) on LHS to show say just the front copper traces layer. None of mine seem to do that. Do I need to add an icon or something?
John
From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com] On Behalf Of Crusty OMO
Hi Ed, Date: Sun, 18 May 2014 18:19:32 -0700 I'm not used Kicad, other than generating gerbers (I've been using Eagle), but if no one else steps forward I'll see if I can make some of these changes before getting these made. I guess I need to get familiar with Kicad eventually. Hi Tom Here is your chance to improve the boards. We still need a volunteer to update the S-100 RAM&ROM board and you could make the fixes and clean up the silkscreen.
Thanks and have a nice day!
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