kicad-developers team mailing list archive

["Sergey A. Borshch" <sb-sf@xxxxxxxxxxxxxxxxxxxxx>]

Hi Seth.
On 24.05.2019 16:13, Seth Hillbrand wrote:
> Am 2019-05-24 02:36, schrieb Sergey A. Borshch:
>
> > Major limitation is that your proposal still does not provide mapping
> > between symbol pins and footprints pins, so user has to keep separate
> > footprints for, say, sot23 bipolar, FET, Zenner and IC which differ in
> > pins names only.
>
> Hi Sergey-
>
> Can you say more about why you would need a separate footprint for different pin 
> names?  I don't quite understand that point.
Bipolar transistors has at least two common pins assignments, so you has to have 
at least two symbols with pins numbered {1, 2, 3} and {2 1 3} or at least two 
footprints with pins numbered {E, C, B} and {E, B, C}.

If your component has some pins connected together as, say, 78Lxx in SOIC8 
package and you want to have same symbol for 78Lxx in all packages, you has to 
keep separate SOIC8 footprint with pins 1,2,2,4,5,2,2,8.

ACCEL EDA has pins mapping (including common pins across units, gates and pins 
equivalence) in 1995, it's curious that Kicad has no such feature 25 years later.

--
Regards,
  Sergey A. Borshch            mailto: sb-sf@xxxxxxxxxxxxxxx
    SB ELDI ltd. Riga, Latvia