Stefan,
I'm not sure how to do that in Eagle Once I get the supply pins to
show up, using the "invoke" command, I don't think the pins are
repositionable. One thing I noticed when I first started playing
around with DipTrace is that it worked somewhat differently. For
example, the first op amp I added, when I went to add the second
section, the symbol with the same pin numbers showed up, instead of
the higher pin numbers, as U1b. I think I remember being able to put
the supply pins on either section, once I got the sections
straightened out.
I'll have to do some more investigating; maybe now is a good time to
read the "Schematic Creating" tutorial by the guy from Japan.
Ted
--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@...> wrote:
>
> On Sat, 18 Mar 2006 19:41:25 +0100, Alan Marconett <KM6VV@...> wrote:
>
> > Hi Ted,
> >
> >
> > I saw parts with hidden supply pins get connected, but trouble is,
there
> >
> > are many ways to call pins, VDD, VCC, GND, VSS.
> >
>
> Hidden pins can be very annoying, i know the problem from orcad
times. You
> can use a "supply block" for components that use hidden supply
(imagine a
> quad opamp, i will havbe 4 opamp symbols inside and a supply block
> symbol). The supply blocks can be put together in one area of the
> schematic and connected in parallel to the supply and capacitors as
> required. This is not so clean looking as totally hidden supply, but
IMO
> in a schematic that is used to create a PCB and does _not_ show each
and
> every pin is worthless. Leaving out pins may be nice for some earlier
> design stage, but the PCB really needs a full schematic. I would
expect
> eagle will allow to use supply blocks (every software that allows
multiple
> symbols inside one component can do that, eagle is one of them i think).
>
> If you use reference symbols instead of wires having all supply pins
on
> the component symbol does not add much "clutter", and i actually
prefer
> that over supply blocks. When i read the schematic thinking "which
pin was
> supply again" i don't need to look at the component, see that it is
say
> IC4, search IC4 amongst the supply blocks, and read the numbers, it
will
> all be there in one place like a real-life component.
>
>
> ST
>