Commit Graph

4 Commits

Author SHA1 Message Date
Matthias Koefferlein 2b447854f9 Enhanced matching of blackbox/pin ambiguities
Previously: matching of blackbox pins was enforced
by using pin names for passive nets in the compare.
Problem: no match was achieved when pins are not
named or not named consistently.

In this case, it's desirable to treat them as
ambiguous.

The new solution is to let the ambiguity resolver handle
that using an extended definition of the net names:
it will take the pin name into account if an unnamed net
is attached to a pin.

In addition, net ambiguities are projected to pin
equivalence now. This also will propagate symmetry
through nested blocks (dbNetlistCompareTests:20_BusLikeConnections).
2021-07-08 23:54:20 +02:00
Matthias Koefferlein c24c0933bf Bugfix: blackbox mode/abstract pins
Abstract pins are created when pins are not attached to any or only to passive nets
(passive nets are those without device terminals or subcircuit pins).

1. Such pins were treated swappable. Now named pins will not be treated
   swappable but are mapped by name. This enables blackbox models where
   the pins are labelled and must correspond to schematic pins.
2. A bug was present which lead to incorrect handling of abstract
   nets in net compare.
2021-06-27 22:56:28 +02:00
Matthias Koefferlein e855d8df35 WIP: fixed unit tests. 2019-04-12 00:31:48 +02:00
Matthias Koefferlein 510c675d21 Test cases for DRC-based net extraction and flat extraction
Flat extraction requires that texts of subcells are not
considered. Otherwise they pollute the net namespace of
the top cell.
2019-03-10 19:35:13 +01:00