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Message #20201
Re: more than one net name on a net
I also think multiple netnames should be included in the ERC check.
How should this be implemented ?
Should power-nets be excluded as these very often has multiple netnames like
VCC/+5V and GND/VEE ?
Should the handeling of power nets be changed ?
As it is today, I can see that this will cause complaints if VCC/+5V
triggers the ERC to often.
This needs to be deiscussed properly before a decission is made.
-----Original Message-----
From: Nick Østergaard
Sent: Monday, September 07, 2015 5:46 PM
To: Andy Peters
Cc: KiCad Developers
Subject: Re: [Kicad-developers] more than one net name on a net
I guess if anyone makes a patch with adding it to the ERC options,
that is a possible candidate for inclusion if the developers agree.
2015-09-07 17:37 GMT+02:00 Andy Peters <devel@xxxxxxxxx>:
On Sep 4, 2015, at 12:08 PM, Adam Wolf <adamwolf@xxxxxxxxxxxxxxxxxxxx>
wrote:
On Fri, Sep 4, 2015 at 2:06 PM, Andy Peters <devel@xxxxxxxxx> wrote:
Someone over on the eevblog pointed this out, so I tested it and
verified that it’s indeed the case.
Eeschema’s ERC is perfectly happy to accept more than one net label on a
net. As a simple test, I took an existing schematic where one net
connected two pins. The net had a label. I added another local net label
to that net and ran the ERC, and it didn’t complain at all.
I generated a pcbnew netlist and noticed how the netlister chose which
name to use: alphabetical. So if I put two net labels “foo” and “bar” on
the net, the netlister chose “bar” for that net’s name.
Now, I can see why it is necessary for hierarchical schematics to allow
for net-name overrides (which are not actually overrides, the net name
is built with a hierarchical name /top//lower/netname). But at the very
least having two labels on a net should throw a warning, if not an
outright ERC fail.
This was reported back in November 2011 with
https://bugs.launchpad.net/kicad/+bug/911002 and kinda dropped on the
floor.
This was recently discussed here--not sure what the resolution was:
https://lists.launchpad.net/kicad-developers/msg19448.html
Apparently dropped on the floor.
-a
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