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Antenna check: tests added, 'catchall' diode protection

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This commit is contained in:
Matthias Koefferlein
2019-03-01 23:07:28 +01:00
parent 9f4f2d58d7
commit 8d3b94201e
5 changed files with 98 additions and 13 deletions
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src/db/unit_tests/dbLayoutToNetlistTests.cc
+69
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@@ -2263,6 +2263,7 @@ TEST(10_Antenna)
unsigned int metal1 = define_layer (ly, lmap, 9);
unsigned int via1 = define_layer (ly, lmap, 11);
unsigned int metal2 = define_layer (ly, lmap, 12);
unsigned int diode = define_layer (ly, lmap, 1);
{
db::LoadLayoutOptions options;
@@ -2283,6 +2284,7 @@ TEST(10_Antenna)
db::DeepShapeStore dss;
std::auto_ptr<db::Region> rdiode (new db::Region (db::RecursiveShapeIterator (ly, tc, diode), dss));
std::auto_ptr<db::Region> rpoly (new db::Region (db::RecursiveShapeIterator (ly, tc, poly), dss));
std::auto_ptr<db::Region> rcont (new db::Region (db::RecursiveShapeIterator (ly, tc, cont), dss));
std::auto_ptr<db::Region> rmetal1 (new db::Region (db::RecursiveShapeIterator (ly, tc, metal1), dss));
@@ -2293,6 +2295,7 @@ TEST(10_Antenna)
ly2.dbu (ly.dbu ());
db::Cell &top2 = ly2.cell (ly2.add_cell ("TOPTOP"));
rdiode->insert_into (&ly2, top2.cell_index (), ly2.insert_layer (db::LayerProperties (1, 0)));
rpoly->insert_into (&ly2, top2.cell_index (), ly2.insert_layer (db::LayerProperties (6, 0)));
rcont->insert_into (&ly2, top2.cell_index (), ly2.insert_layer (db::LayerProperties (8, 0)));
rmetal1->insert_into (&ly2, top2.cell_index (), ly2.insert_layer (db::LayerProperties (9, 0)));
@@ -2367,6 +2370,72 @@ TEST(10_Antenna)
a2_17.insert_into (&ly2, top2.cell_index (), ly2.insert_layer (db::LayerProperties (202, 0)));
}
{
db::LayoutToNetlist l2n (&dss);
l2n.register_layer (*rdiode, "diode");
l2n.register_layer (*rpoly, "poly");
l2n.register_layer (*rcont, "cont");
l2n.register_layer (*rmetal1, "metal1");
// Intra-layer
l2n.connect (*rdiode);
l2n.connect (*rpoly);
l2n.connect (*rcont);
l2n.connect (*rmetal1);
// Inter-layer
l2n.connect (*rdiode, *rcont);
l2n.connect (*rpoly, *rcont);
l2n.connect (*rcont, *rmetal1);
l2n.extract_netlist ();
std::vector<std::pair<db::Region *, double> > diodes;
// 8.0 means: increase r by 8.0 for each um^2 of diode attached to a net
diodes.push_back (std::make_pair (rdiode.get (), 8.0));
db::Region a3_3 = l2n.antenna_check (*rpoly, *rmetal1, 3, diodes);
db::Region a3_10 = l2n.antenna_check (*rpoly, *rmetal1, 10, diodes);
db::Region a3_30 = l2n.antenna_check (*rpoly, *rmetal1, 30, diodes);
a3_3.insert_into (&ly2, top2.cell_index (), ly2.insert_layer (db::LayerProperties (300, 0)));
a3_10.insert_into (&ly2, top2.cell_index (), ly2.insert_layer (db::LayerProperties (301, 0)));
a3_30.insert_into (&ly2, top2.cell_index (), ly2.insert_layer (db::LayerProperties (302, 0)));
}
{
db::LayoutToNetlist l2n (&dss);
l2n.register_layer (*rdiode, "diode");
l2n.register_layer (*rpoly, "poly");
l2n.register_layer (*rcont, "cont");
l2n.register_layer (*rmetal1, "metal1");
// Intra-layer
l2n.connect (*rdiode);
l2n.connect (*rpoly);
l2n.connect (*rcont);
l2n.connect (*rmetal1);
// Inter-layer
l2n.connect (*rdiode, *rcont);
l2n.connect (*rpoly, *rcont);
l2n.connect (*rcont, *rmetal1);
l2n.extract_netlist ();
std::vector<std::pair<db::Region *, double> > diodes;
// 0.0 means: skip all nets where there is a rdiode attached
diodes.push_back (std::make_pair (rdiode.get (), 0.0));
db::Region a4_3 = l2n.antenna_check (*rpoly, *rmetal1, 3, diodes);
db::Region a4_10 = l2n.antenna_check (*rpoly, *rmetal1, 10, diodes);
db::Region a4_30 = l2n.antenna_check (*rpoly, *rmetal1, 30, diodes);
a4_3.insert_into (&ly2, top2.cell_index (), ly2.insert_layer (db::LayerProperties (400, 0)));
a4_10.insert_into (&ly2, top2.cell_index (), ly2.insert_layer (db::LayerProperties (401, 0)));
a4_30.insert_into (&ly2, top2.cell_index (), ly2.insert_layer (db::LayerProperties (402, 0)));
}
std::string au = tl::testsrc ();
au = tl::combine_path (au, "testdata");
au = tl::combine_path (au, "algo");