From d5b156e241b2e2f4e257bc322e53929453da1230 Mon Sep 17 00:00:00 2001
From: Uri Shaked <uri@urishaked.com>
Date: Sun, 31 May 2026 15:38:22 +0300
Subject: [PATCH] feat(precheck/gf180mcuD): analog template selection + pin
 check

---
 precheck/precheck.py  | 11 ++++++++---
 precheck/tech_data.py | 11 +++++++++++
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/precheck/precheck.py b/precheck/precheck.py
index ef6cb87..68bc1fa 100644
--- a/precheck/precheck.py
+++ b/precheck/precheck.py
@@ -399,10 +399,15 @@ def main():
         raise PrecheckFailure("Projects with 3v3 power need at least one analog pin")
     def_root = f"../tech/{tech}/def"
     if is_analog:
+        analog_def = f"{def_root}/analog/tt_analog_{tiles}"
         if uses_3v3:
-            template_def = f"{def_root}/analog/tt_analog_{tiles}_3v3.def"
+            # gf180's second supply rail is "pgvaa" (its core is already 3v3, so
+            # "_3v3" is a misnomer); fall back to "_3v3" for techs that use it.
+            template_def = f"{analog_def}_pgvaa.def"
+            if not os.path.exists(template_def):
+                template_def = f"{analog_def}_3v3.def"
         else:
-            template_def = f"{def_root}/analog/tt_analog_{tiles}.def"
+            template_def = f"{analog_def}.def"
     elif tech == "ihp-sg13g2" or tech == "gf180mcuD":
         template_def = f"{def_root}/tt_block_{tiles}_pgvdd.def"
     else:
@@ -486,7 +491,7 @@ def main():
             "check": lambda: analog_pin_check(
                 gds_file, tech, is_analog, uses_3v3, analog_pins, pinout
             ),
-            "techs": ["sky130A", "ihp-sg13g2"],
+            "techs": ["sky130A", "ihp-sg13g2", "gf180mcuD"],
         },
         {
             "name": "Verilog syntax check",
diff --git a/precheck/tech_data.py b/precheck/tech_data.py
index e0facb8..a1a177c 100644
--- a/precheck/tech_data.py
+++ b/precheck/tech_data.py
@@ -119,6 +119,17 @@ def analog_pin_rects(tech: str, uses_3v3: bool):
             x2, y2 = x1 + 1.75, y1 + 2.0
             rect = ((x1, y1), (x2, y2))
             yield (rect, pin_layer, via_layers)
+    elif tech == "gf180mcuD":
+        pin_layer = (46, 0)  # Metal4
+        via_layers = [(40, 0)]  # Via3
+        for pin_number in range(8):
+            if uses_3v3:
+                x1, y1 = 307.90 - 43.68 * pin_number, 0.0
+            else:
+                x1, y1 = 325.82 - 43.68 * pin_number, 0.0
+            x2, y2 = x1 + 3.0, y1 + 1.0
+            rect = ((x1, y1), (x2, y2))
+            yield (rect, pin_layer, via_layers)
     elif tech in tech_names:
         raise NotImplementedError
     else: