Ignore unconnected ports, use GLOBAL_LOGIC[01] for gnd/vcc nets

Signed-off-by: Eddie Hung <[email protected]>
Xilinx · Jun 22, 2023 · 5c3fde4 · 5c3fde4
1 parent b494343
commit 5c3fde4
Showing 1 changed file with 17 additions and 7 deletions.
diff --git a/src/com/xilinx/rapidwright/design/ModuleInst.java b/src/com/xilinx/rapidwright/design/ModuleInst.java
@@ -687,14 +687,24 @@ public void connect(String portName, int busIndex0, ModuleInst other, String oth
         if (p0.isOutPort()) {
             physicalNet = getCorrespondingNet(p0);
             if (physicalNet == null) {
-                // This must be a pass-thru situation
-                List<String> passThruPortNames = p0.getPassThruPortNames();
-                if (passThruPortNames.isEmpty()) {
-                    throw new RuntimeException("Expecting a pass-thru situation");
+                if (p0.getType() == PortType.UNCONNECTED) {
+                    return;
+                }
+                if (p0.getType() == PortType.POWER) {
+                    physicalNet = design.getVccNet();
+                } else if (p0.getType() == PortType.GROUND) {
+                    physicalNet = design.getGndNet();
+                } else {
+                    // This must be a pass-thru situation
+                    List<String> passThruPortNames = p0.getPassThruPortNames();
+                    if (passThruPortNames.isEmpty()) {
+                        throw new RuntimeException("Expecting a pass-thru situation");
+                    }
+
+                    // No updates needed for the physical netlist -- with the logical netlist
+                    // already updated, the two physical nets will be interpreted as aliases
+                    return;
                 }
-                // No updates needed for the physical netlist -- with the logical netlist
-                // already updated, the two physical nets will be interpreted as aliases
-                return;
             }
             inPort = p1;
             modInst = other;