kicad-developers team mailing list archive

[jp charras <jp.charras@xxxxxxxxxx>]

Le 14/09/2015 06:17, Joseph Chen a écrit :
> @Wayne and @JP,
> 
> Could try ERC on this simple schematic file?
> 
> Attached, you can find a test schematic file that has an unintended
> unmatched local labels, and current kicad ERC does not detect them.
> 
> In the test schematic file, there is a mis-spelled local label on the
> right hand side.  The local labels are constructed with an intention of
> using them to serve as ratnets, not just a convenient text.
> With this kind of mis-detected errors, the PCB will not have the
> intended ratnet at all and thus no copper track will be laid out, and
> thus the manufactured boards will be bad.
> 
> --Joe


The test schematic looks good for a reader.
You said:
"The local labels are constructed with an intention of using them to
serve as ratnets, not just a convenient text"
But only the designer (you) knows that.

Detecting mis-spelled local labels is not so easy, if you want to avoid
noise. And if there is noise, this feature is useless.
Many designers widely use a local label (and only one) to name a net for
many reasons.
This is not necessary a design error (in fact 99% of cases are not an error)

Having said that, I think you could send us a patch, at least to try
this feature, and see how useful it is in many different designs, and
perhaps improve it to avoid noise.

But keep in mind testing a patch and include it in a stable release are
not the same thing.

-- 
Jean-Pierre CHARRAS