Re: gEDA-user: I do not understand: What is the meaning of the attribute "pinseq"

[Bert Douglas <bertd@xxxxxxxxxxxxx>]

The purpose of pinseq is for use with "slotted" components.
The classic example is the 7400 nand gate.  There is one chip, with four 
identical gates.

By means of the "slot" attribute and the "pinseq" attribute, the 
software can know which groups of pins constitute a single gate, and 
that all the gates are interchangeable.

The pinseq attribute should list the pins for each gate in the same 
order.  For example: input a, input b, output.

If you don't have "slot" then pinseq is not used.


9000 VAX wrote:
> On Tue, 22 Feb 2005 21:47:52 +0100, Manfred Eggersdorf
> <manfred.eggersdorf@xxxxxx> wrote:
>
> > Yes, this "short manual" I do not understand.
> > So far as I compared some symbols the pinseq begins often to count at
> > the bottom of the schematic-symbol and counts clockwise.
> >
> > It seems to  have not  anything to do with the part type itself - it is
> > possible?
> > Shall I begin simply at one end of the schematic-symbol and count like I
> > think that it is good?
>
>
> I think you can count any direction you like. As I understand the
> 'pinseq' is the order of pins that the software generates netlist
> file. That is to say, pin with pinseq=1 always showes up ealier than
> pin with pinseq = 2 in the netlist file.
>
> I would be wrong.
>
> vax, 9000 
>
>
> > Manfred
> >
> > Werner Hoch schrieb:
> >
> >
> > > http://www.geda.seul.org/docs/current/attributes/node10.html
> > >
> > > pinseq is required for slotting too.
> > >
> > > regards
> > > Werner