kicad-developers team mailing list archive

[jean-pierre charras - INPG <jean-pierre.charras@...>]

Tim Hanson a écrit :
> Good, these items (NET_LABEL or DRAW_LABEL_STRUCT_ TYPE) shall remain
> sheet-local.
>
> I've fixed the schematic file versioning issue, too, so all may try to
> svn up & tell me of any problems.
Tim,
thanks for your work!
This was a significant enhancement.

Differences between old behavior and new behavior:
Old global labels (now hierarchical labels or hierarchical ports) were 
seen as connected to a label (really a local label) in a sheet when they 
have the same name:
If (in a given sheet) we have a hierarchical label like my_label and a 
local label also named my_label, they were seen as connected
(no need to have a hierarchical label connected to a wire connected to a 
local label).
The new behavior seems consider the 2 different label not connected by 
they name.

This difference is easily noticeable with bus labels.
If whe have a hierarchical label like data[0..7] in a sheet (a bus 
connection) and only local labels data0 , data1 .. (an usual way of work),
they are not connected to the members of the hierarchical label data[0..7]
(except ifl we put a bus wire connected to this hierarchical label and a 
local label data[0..7] on this bus wire).

I think within a sheet, a label an a hierarchical label must be seen as 
connected if they have the same name ( and perhaps this could be true 
also for a new (true) global label).
Of course, a local label is a local label and it is not view outside the 
sheet, except if it is connected to a hierarchical or a true global label.
This was the old behavior, and such a change will be seen as a bug by 
old users, not an enhancement.

--
Jean-Pierre CHARRAS
Maître de conférences
Directeur d'études 2ieme année.
Génie Electrique et Informatique Industrielle 2
Institut Universitaire de Technologie 1 de Grenoble
BP 67, 38402 St Martin d'Heres Cedex

Recherche :
Grenoble Image Parole Signal Automatique (GIPSA - INPG)
46, Avenue Félix Viallet
38031 Grenoble Cedex