Understanding net ports and problems with them

Drawing Schematics, Hierarchical Design, BOM, Exporting net-lists, etc.
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EEnh
Posts: 38
Joined: 25 Sep 2011, 10:01

Understanding net ports and problems with them

#1 Post by EEnh » 09 Feb 2014, 22:46

So, we use net ports for busses to "hold" reference to all nets on a bus.

But, a power or ground symbol is also a net port. This is a big problem when it comes to checking a netlist before layout or for possible processing of the netlist by some application.

If I place a GND symbol, the net takes on the name of the first wire attached ... say "net 39"

This is VERY bad because outside of the schematic, you don't know where your GND went !

I propose that you guys create a special class of net port that AUTOMATICALLY assigns ITS name to the first and every wire that connects to it.

So, GND automatically creates a net named GND, +5V0 automatically creates a net named +5V0, etc.

Also, if connecting a net port to an existing net, warn the user and let them choose or cancel. Otherwise, an erroneous connection of GND to, say, DAT00 on a bus, makes all DAT00 names become GND. Not very pretty !

Thank you for listening and for continued work on a great product.

Den

Alex
Technical Support
Posts: 3259
Joined: 14 Jun 2010, 06:43

Re: Understanding net ports and problems with them

#2 Post by Alex » 10 Feb 2014, 09:49

Hi Den,

You can right click on a wire that goes from netport, select first item from submenu and rename net.
We will consider a special class of net ports that automaticall assigns its name to nets.

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