Dear John Dammeyer,

> From: John Dammeyer
...
> it seems Protel 99SE has problems with two pads with the same
> designator.  When it's place with the load nets it correctly assigns the
> correct NET to the round pad but ignores the rectangular surface mount
> pad.
>
> On the PCB I can individually change each pad but it's tedious with 40
> switches (160 pads) and worse when UpdatePCB is clicked in the LIB file,
> it changes the pads back to No Net.
>
> Is there a way to make a pad or series of pads or even a pad with some
> traces as a library component that is all treated as one NET?
>
> Thanks,
>
> John Dammeyer

I vaguely remember encountering this same problem.

2 solutions:

On one project, I
* made a single footprint where several pins were given the same the
same designator "1", but when I'm in the LIB file and I do UpdatePCB,
only one of them would pick up the proper net.
I seem to remember doing something like this:
* going to the PCB and erasing all nets (what menu option was that?)
* going to the schematic and updating the PCB (which updates all the
designator "1" pads properly, only if *all* of them were "no net"
before).
* going back to the PCB and running "Design | netlist Manager | Menu |
Update Free Primitives From Component Pads" (to update any copper
traces you may have placed that lost their net in the "erase all nets"
step -- including both copper traces you placed in the footprint
library, as well as copper traces you placed on the PCB).

On another project I
* made one SMT footprint
* made one through-hole footprint
* on the schematic, I make 2 identical-looking symbols, and placed
them precisely on top of each other (so all their pins were shorted
together). One of those schematic symbols was attached to the SMT
footprint, the other one attached to the through-hole footprint.
* somehow tweaked the design rules so it stopped complaining about
these 2 footprints colliding.

Once we figure out the best solution, is this something that needs to
go into the
"independent Protel users FAQ"
http://massmind.org/techref/app/protel.htm
?

--
David Cary
http://carybros.com/

 
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