Hi
Back in the day, when I was a Kicad rookie, I found this quite
natural.
Pins are numbered in schematic symbols and also in PCB
footprints, and naturally the symbols and footprints numbers must
match.
Its just the symmetric non polarized components that can get you
in this situation. But those cases are only a handful of
components; the vast majority of electronics components have
strict connection rules.
You can familiarize yourself with this and other details if you
invest some time just browsing a few components with the symbol
and footprint editors. You will also get a feeling for how ERC
rules work.
Best regards
Jorge
On 13/04/24 19:04, John Woodgate wrote:
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Thanks. I can't try it now, but I expect it
will work. I guess it's needed for the schematic to work in
simulation. But It's something that I would expect to be
mentioned in 'Getting Started', because it's really quite
fundamental to laying out a PCB.
On 2024-04-13 18:58, Jorge Ferreira
wrote:
Hi
Yes.
Also when I come across this issue when routing a PCB, I go back
to the schematic and rotate the component there.
regards
Jorge
On 13/04/24 18:54, CW via groups.io wrote:
Are you trying to place a copper track
from the end of one capacitor to
another and KiCad won't let you make that connection?
KiCad will only allow you to make connections between
components that
are described in the schematic you have entered. So if your
schematic
says the connections have to be made one way, and you try and
do it
another way, it won't let you.
You can turn on the Ratsnest function in the PCB editor which
will show
you the connections KiCad wants to make between components,
driven by
what you put in the schematic. That should help you see what
is going on.
On 4/13/2024 10:47 AM, John Woodgate wrote:
I am having a? problem with laying out
a simple PCB, using version 8.01
under Widows 11. The problem is that even resistors and
capacitors have
specified ends, and it seems impossible to overcome this.
For example, I
have two capacitors to be connected in parallel to make up a
non-standard value. KiCad insists on connecting the north
end of C1 to
the south end of C2, so the other connection C1S to C2N
cannot be made.
I see that it's not possible to directly invert a footprint,
and
applying? a 90 degree turn twice doesn't fix the problem.
I can't find anything about this in 'Getting Started' or the
'English
Documentation', but of course it might be in there
somewhere. Please advise.
--?
Signature OOO - Own Opinions Only
Best wishes
John Woodgate, Rayleigh, Essex UK
Keep trying
???
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OOO - Own Opinions Only
Best wishes
John Woodgate, Rayleigh, Essex
UK
Keep trying
