R2：底板 / 刀片布局布线脚本、快照、截图与规划文档更新（含外壳、打印件、布线归档）

Co-Authored-By: Claude Opus 5.5 <[email protected]>

.claude/k_netlist.py

@@ -0,0 +1,89 @@
+#!/usr/bin/env python3
+"""解析 EasyEDA 导出的 PADS 网表 -> 规范化的对账基准。
+
+这是转 KiCad 全程的**唯一真值**：生成的 .kicad_sch 必须能被 kicad-cli 编译出
+完全一致的 (元件集合, 网络->引脚集合)。网络名本身允许改写（EasyEDA 的匿名网
+$1N236 和 KiCad 的自动命名不会一样），所以比对时按「引脚集合」而不是网络名配对。
+
+用法:
+    python k_netlist.py                 # 打印两块板的统计
+    python k_netlist.py --board Board1 --dump base.json
+"""
+import argparse, json, os, re, sys
+
+ROOT = os.path.join(os.path.dirname(os.path.abspath(__file__)), "eda_src")
+
+
+def parse_pads(path):
+    """-> {'parts': {ref: footprint}, 'nets': {net: [ref.pin, ...]}}"""
+    txt = open(path, encoding="utf-8").read()
+    parts, nets = {}, {}
+    section, cur = None, None
+    for raw in txt.splitlines():
+        line = raw.rstrip()
+        if not line.strip():
+            continue
+        m = re.match(r"^\*([A-Z]+)\*(.*)$", line)
+        if m:
+            tag, rest = m.group(1), m.group(2).strip()
+            if tag == "SIGNAL":
+                section, cur = "SIGNAL", rest
+                nets[cur] = []
+            elif tag in ("PART", "NET"):
+                section, cur = tag, None
+            else:                       # *REMARK* 等一律跳过
+                section, cur = None, None
+            continue
+        if section == "PART":
+            f = line.split()
+            if len(f) >= 2:
+                parts[f[0]] = f[1]
+            elif f:
+                parts[f[0]] = ""
+        elif section == "SIGNAL" and cur is not None:
+            nets[cur].extend(line.split())
+    return {"parts": parts, "nets": nets}
+
+
+def stats(nl, label):
+    parts, nets = nl["parts"], nl["nets"]
+    pins = [p for v in nets.values() for p in v]
+    anon = [n for n in nets if n.startswith("$")]
+    # 每个网络的引脚数分布，单引脚网络是可疑项
+    single = [n for n, v in nets.items() if len(v) < 2]
+    # 出现在网表里但不在 PART 表里的位号
+    refs = {p.rsplit(".", 1)[0] for p in pins}
+    missing = sorted(refs - set(parts))
+    print(f"[{label}]")
+    print(f"  元件 {len(parts):>4d}   网络 {len(nets):>4d}（匿名 {len(anon)}）   引脚连接 {len(pins):>5d}")
+    print(f"  单引脚网络 {len(single)}  {single[:6]}{' …' if len(single) > 6 else ''}")
+    if missing:
+        print(f"  ⚠ 网表引用了 PART 表里没有的位号: {missing[:10]}")
+    dup = [p for p in set(pins) if pins.count(p) > 1] if len(pins) < 20000 else []
+    if dup:
+        print(f"  ⚠ 同一引脚出现在多个网络（短路）: {dup[:10]}")
+    return {"parts": len(parts), "nets": len(nets), "pins": len(pins)}
+
+
+def main():
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--board")
+    ap.add_argument("--dump")
+    a = ap.parse_args()
+    boards = [a.board] if a.board else ["Board1", "Board2"]
+    out = {}
+    for b in boards:
+        p = os.path.join(ROOT, b, "netlist.asc")
+        if not os.path.exists(p):
+            print(f"!! 缺 {p}"); sys.exit(1)
+        nl = parse_pads(p)
+        stats(nl, b)
+        out[b] = nl
+    if a.dump:
+        json.dump(out if not a.board else out[a.board],
+                  open(a.dump, "w", encoding="utf-8"), ensure_ascii=False, indent=1)
+        print(f"\n-> {a.dump}")
+
+
+if __name__ == "__main__":
+    main()