Mail Archives: geda-user/2015/08/18/06:22:29
On 18/08/15 10:36, Richard Rasker (rasker AT linetec DOT nl) [via
geda-user AT delorie DOT com] wrote:
> Matt Rhys-Roberts (matt DOT rhys-roberts AT envinsci DOT co DOT uk) [via
> geda-user AT delorie DOT com] schreef op di 18-08-2015 om 10:04 [+0100]:
>> I've created a symbol with 13 pads in pcb, and it seems to convert to an
>> element quite well.
>>
>> After converting it to an element, I notice (by pressing D while
>> hovering over them) that the 13 pads are numbered arbitrarily, probably
>> in order of creation.
>>
>> I can assign each pad with the preferred names/numbers to match the pad
>> naming convention for my design, but I don't know if this is going to
>> confuse matters later? Hopefully gsch2pcb will sort things out?
>>
>> Should I edit the footprint file to make the initial ("wrong") pad
>> numbers match the desired pad numbering? Am I worrying too much?!
> The pads are indeed numbered in order of creation. In my experience, you
> can simply renumber the pads in the footprint file. Just make a note of
> how the numbers should change from what you see in PCB beforehand.
Hi Richard. Ok, thanks
> The best approach is to number pads during creation. Each line that is
> to become a pad can be assigned a number by pressing N while hovering
> over it; just enter a number as the Line Name.
Oh dear, have I messed up here? I created my very specifically sized
pads using rectangles on the top layer. I have seen that some ready-made
elements break down into round-ended top-layer lines, which can be
squared afterwards... Am I breaking the rules by trying to use
rectangles instead in the first place?
>
> When dealing with structural metal parts such as mounting tabs and pins
> on connectors, I usually assign these the number 0 (zero) -- although
> the gschem symbol should have a corresponding pin if these parts are to
> be connected to a circuit net (usually GND). Perhaps other people use a
> different approach here?
I too have several pads that all connect to a connector's shield ground;
it would be nice if I could call them by same name. I've been numbering
them uniquely, pending a better strategy :D
Matt.
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