kicad：EasyEDA→KiCad 工程（Board1/Board2）、库、脚本与评审文档（IC 引脚、风扇、热、EDL 供电、布局规则）

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

kicad/scripts/unconnected_inventory.py

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+"""Classify singleton unconnected nets without declaring them electrically safe."""
+from collections import Counter
+import csv
+import json
+import re
+
+
+def classify(board, ref, pin):
+    if board == 2 and re.fullmatch(r'J7[1-5]', ref):
+        return 'phone_tail_contact', 'Check Xiaomi J1401 signal assignment and retained phone functions before NC'
+    if board == 1 and ref == 'U20':
+        return 'mcu_recovery' if pin in ('27', '36', '37') else 'mcu_spare_or_strap', 'Review recovery interface, boot straps and module memory variant'
+    if board == 1 and ref in ('U6', 'U7'):
+        return 'unused_dac_channel', 'Unused by current rail map; verify Hi-Z at reset, NVM restore and faults before NC'
+    if board == 2 and ref == 'U32':
+        if pin in ('21', '22', '27', '28', '35', '37', '38'):
+            return 'hub_overcurrent', 'Internal pull-up documented; review port power control and system overcurrent responsibility'
+        if pin in ('20', '23', '26', '29', '30', '36', '39'):
+            return 'hub_port_power', 'Review firmware-controlled TPS22918 sequencing versus hub port power requests'
+        if pin in ('53', '55'):
+            return 'hub_unused_usb_port', 'Verify port 6/7 disable straps and USB enumeration'
+        return 'hub_led_or_strap', 'Review sampled strap default and enabled LED function before NC'
+    if board == 2 and re.fullmatch(r'U4[1-5]', ref) and pin == '3':
+        return 'edl_normally_closed', 'NC means normally closed switch port; confirm COM/NO wiring and default-open EDL behavior'
+    if board == 2 and ref == 'U34':
+        return 'temperature_alert', 'Firmware polls temperature; review fault coverage without OS interrupt'
+    if ref in ('J22', 'J23'):
+        return 'usb_unused_contact', 'Confirm USB2-only SBU policy or externally powered debug VBUS policy'
+    if board == 1 and ref == 'J1':
+        return 'input_connector_mechanical', 'Confirm connector pad 3/4 are mechanical anchors and soldering requirements'
+    return 'unclassified', 'Manual schematic and datasheet review required'
+
+
+def inventory(board):
+    rows = []
+    for net, endpoints in sorted(board.net_members.items()):
+        if len(endpoints) != 1 or not net.startswith('unconnected-'):
+            continue
+        ref, pin = next(iter(endpoints))
+        kind = board.pin_types[(ref, pin)]
+        if 'no_connect' in kind.split('+'):
+            continue
+        category, action = classify(board.number, ref, pin)
+        rows.append({'board': board.number, 'sheet': board.parts[ref]['page'], 'reference': ref,
+                     'pin': pin, 'function': board.functions[(ref, pin)], 'type': kind,
+                     'net': net, 'category': category, 'status': 'REVIEW_REQUIRED', 'next_action': action})
+    if len(rows) != board.erc.get('pin_not_connected', 0):
+        raise ValueError('Singleton inventory does not account for every unconnected-pin ERC item')
+    return rows
+
+
+def write_inventory(out, rows):
+    with (out / 'unconnected-pins.csv').open('w', encoding='utf-8-sig', newline='') as stream:
+        writer = csv.DictWriter(stream, fieldnames=['board', 'sheet', 'reference', 'pin', 'function',
+                                'type', 'net', 'category', 'status', 'next_action'])
+        writer.writeheader()
+        writer.writerows(rows)
+    summary = {'total': len(rows), 'by_category': dict(Counter(r['category'] for r in rows)),
+               'by_board': dict(Counter(r['board'] for r in rows)),
+               'note': 'Every row remains open; classification is not an NC approval or hardware acceptance'}
+    (out / 'unconnected-summary.json').write_text(json.dumps(summary, indent=2) + '\n', encoding='utf-8')
+    return summary