Here I believe that four ‘‘2’’ pins are just there to fix the connector on the board, but if I left them unconnected, errors will be reported.
Besides, I have already set those Pins unconnected in the schematic editor:
2,Another error is also reported:
I think it’s because of the outline of the footprints:
The shield of a coaxial connector is a critical part of the RF circuit and must be connected. These connectors use 4 pins to give as low impedance as possible to a groundplane.
Yes. The footprint you’re using has an Edge.Cuts line in it. The intention is for you to connect that to your board’s outline. If you don’t need or want that cut then you either need to use a different footprint or remove it from the footprint you’re using.
Not sure why we have edge cuts in Kicad footprints ???
if the user needs something, put it on some other mechanical layer to use as a guide.
PCB design is not plug and play.
LF666, there are a number of gross defficiencies in your schematic and PCB, I suggest you go to a forum where there are people that can help you- and discuss there- that forum will have plenty of users to help you with your design - both electrical and mechanical. This forum is for Kicad specific problems and your issues are general - they would apply to any tool that you might use- , and are not kicad specific.
ahhh. OK. maybe the presentation in the footprint editor needs some enhancement if lots of people are coming array with this one.
Have you got a name of one with edge cuts I can look at in the std kicad library ? thanks - g.
Note that some other footprints have PCB edge reference markings that show where to place the footprint so it overhangs the edge by the correct amount. These markings are not in the edge cuts layer, but rather in a user drawings layer (even though they are the same color in my screenshot)
Yes, a User Drawings Layer for a ‘partial outline’ is where I would expect to find edge cut guides---- The user can then draw their edgecut to suit.
That is, I would not expect an explicit edge cut to be supplied in a footprint.
But, I bring up the PCI express, and there it is, an edgecut on the edge layer. OK.
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My comment is that in my system it shows up as the same default color ( another shade of grey) as User.Drawings, User 1., User.5 etc
Perhaps edge cut default color could be something that stands out a bit more.
However, “not a big deal for the user to change”
I can see the usefulness in the edge cut in specific circumstances.
cheers
Don’t know the reason in this case but I frequently define complete enclosures as a footprint. Not only the edge cut but also the mounting holes, terminal blocks and a transparent model of the enclosure. So I cannot accidently move some of them and the terminal numbers correspond to the numbering in the device book. Saves a lot of time when you use this particular enclosure again.
Yes, seeing the blue cross ‘Not Connected’ on the the outer of the coax symbols made me think what ? this must be a unique use case I have never seen or it’s simply wrong ! I should check your schematic very carefully.
I was Director of Engineering for Oregon division of JAE so, I saw this Connector with Edge-Cuts in the Stock Lib. I added the additional Edge-Cuts to the PCB after placing the Footprint…
this must be a unique use case I have never seen or it’s simply wrong ! I should check your schematic very carefully.
