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]>
这个提交包含在：
zhou yang
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# -*- coding: utf-8 -*-
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u"""D16：拆 U13（INA226）东侧 I²C 三线束重布，连同 CH224A 的 SDA / SCL 一起接上（服务器跑）。
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DCDC_ROUTE_SERVER=1 /root/pypy/bin/pypy3 .claude/r2/d16_rip.py [--extra 结果文件 ...]
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为什么：CH224A 改挂主 I²C 后（用户 2026-09-12），南边唯一的 SDA 是 U13.4 —— 东边 INA_ALERT / SCL 两根线与 SDA
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0.5 mm 并排走出去、西边本体底下有一段 SCL 把 2、5 脚连起来，这束一直夹着走进北边被圈住的区域，中间放不下一个孔
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（d16_tap 30 个落点全不通）。用户选「拆这一束重布」，原理图不动。
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做法（**只改数据、不动板**）：快照里拿掉拆除区 RIP_BOX 内 RIP_NETS 的外层线 / 孔（KEEP_BOX 里 U13 本体底下那段
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2—5 脚 SCL 连线留着）→ 逐网把孤立小块接到大块上：小块用自己离大块最近的焊盘，大块用它**已有铜**（线段每 0.5 mm
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一点 + 孔）上离小块最近的若干点当虚拟焊盘，由近到远逐个试，接上即停；接不上的块跳过、接着试别的。
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第一阶段先把 U13 的三个网接回北边主干，第二阶段再接 CH224A（U36）的两只脚。
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⚠ 三根线要挤过 U13 东北那条走廊，**先后和线宽决定挤不挤得下**（手猜两轮：SDA 先 → SCL 的 U13.2 接不上；
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SCL 先 → SDA 回不去）⇒ 6 种先后 × 线宽 0.2 / 0.15 共 12 组变体，每组从同一份拆完的快照起跑，
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按（断的块数、孔数、线长）取最优。写 _d16_rip.out.json：{'ripped_segs', 'ripped_vias', 'segs', 'vias',
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'nets', 'logs', 'variant', 'scores'}；本机 d16_check 复核后 d16_push 先删后建。
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"""
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import io
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import itertools
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import json
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import math
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import os
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import sys
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if os.environ.get('DCDC_ROUTE_SERVER') != '1':
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sys.exit(u'!! 布线运算只在服务器上跑（DCDC_ROUTE_SERVER=1），见 CLAUDE.md')
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if '--grid' not in sys.argv:
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sys.argv += ['--grid', '0.125']
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HERE = os.path.dirname(os.path.abspath(__file__))
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sys.path.insert(0, os.path.dirname(HERE))
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sys.path.insert(0, HERE)
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import route_nets as N # noqa: E402
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R = N.R
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RIP_NETS = ('SDA', 'SCL', 'INA_ALERT')
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RIP_BOX = (15.0, 38.0, 40.0, 58.0)
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# U13 本体底下把 2、5 脚（都是 SCL）连起来的那段不拆：5 脚东侧空出来给 CH224A 的 SCL 落脚
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KEEP_BOX = (19.5, 42.0, 22.5, 44.6)
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LATE = ('U36',)
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WIDTHS = (0.2, 0.15)
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TRIES = 30
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# 试算开关：--tries N（每块候选落点数）/ --orders 'A,B,C;B,A'（只试这几种先后；不在里面的网拆了不接回）/ --widths 0.15,0.2
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if '--tries' in sys.argv:
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TRIES = int(sys.argv[sys.argv.index('--tries') + 1])
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ORDERS = None
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if '--orders' in sys.argv:
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ORDERS = [tuple(o.split(',')) for o in sys.argv[sys.argv.index('--orders') + 1].split(';')]
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# --steps 'INA_ALERT:1,SDA:1,SDA:2,SCL:1,SCL:2/...'：逐步指定「网:阶段」（阶段 2 = 只接 U36 的块），几种排法用 / 隔开
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# （⚠ 不用分号：remote_d16.sh 把参数不加引号地拼进远程命令，分号会把命令截断）。
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# 实验 1（2026-09-12）：INA→SDA→SCL 三网都接回北边，但 U13 的 SCL 新路从南边兜过 U36，把 U36.3 和 SDA 隔开 ⇒ U36.3 要排在 U13 的 SCL 前面
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STEPS = None
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if '--steps' in sys.argv:
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STEPS = [[(t.split(':')[0], int(t.split(':')[1])) for t in seq.split(',')]
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for seq in sys.argv[sys.argv.index('--steps') + 1].split('/')]
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if '--widths' in sys.argv:
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WIDTHS = tuple(float(x) for x in sys.argv[sys.argv.index('--widths') + 1].split(','))
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def inbox(x, y, b):
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return b[0] <= x <= b[2] and b[1] <= y <= b[3]
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def L(s):
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return math.hypot(s[3] - s[1], s[4] - s[2])
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def candidates(net, segs, vias, tx, ty):
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c = []
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for s in segs:
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if s[6] != net or s[0] not in (1, 2):
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continue
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n = max(1, int(L(s) / 0.5))
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for k in range(n + 1):
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x, y = s[1] + (s[3] - s[1]) * k / n, s[2] + (s[4] - s[2]) * k / n
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c.append((math.hypot(x - tx, y - ty), s[0], round(x, 3), round(y, 3), max(s[5], 0.2)))
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for v in vias:
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if v[2] == net:
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for l in (1, 2):
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c.append((math.hypot(v[0] - tx, v[1] - ty), l, round(v[0], 3), round(v[1], 3), 0.6))
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c.sort()
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out = []
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for q in c:
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if all(math.hypot(q[2] - p[2], q[3] - p[3]) > 1.0 or q[1] != p[1] for p in out):
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out.append(q)
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if len(out) >= TRIES:
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break
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return out
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def run_variant(order, w, pads, base_s, base_v):
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segs, vias = list(base_s), list(base_v)
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new_s, new_v, logs, stat = [], [], [], {}
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def connect(net, phase):
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groups = N.components(net, pads, segs, vias)
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g0 = len(groups)
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failed = set()
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while True:
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groups.sort(key=len)
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big = groups[-1]
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bx = sum(q[2] for q in big) / len(big)
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by = sum(q[3] for q in big) / len(big)
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smalls = [g for g in groups[:-1] if (all(q[0] in LATE for q in g)) == (phase == 2)
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and frozenset((q[0], str(q[1])) for q in g) not in failed]
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if not smalls:
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break
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smalls.sort(key=lambda g: min(math.hypot(q[2] - bx, q[3] - by) for q in g))
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sm = smalls[0]
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done = False
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for sp in sorted(sm, key=lambda q: math.hypot(q[2] - bx, q[3] - by))[:2]:
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for d, l, x, y, ww in candidates(net, [q for q in segs if q[6] == net], [q for q in vias if q[2] == net],
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sp[2], sp[3]):
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vp = ['#tap', '1', x, y, ww, ww, l, net, 'RECT']
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N.INNER[:] = [q for q in segs if q[0] in (15, 16)]
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lg = []
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s2, v2 = R.route_one(net, [sp, vp], w, pads + [vp], [q for q in segs if q[0] in (1, 2)], vias, [], lg)
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s2 = [tuple(q) for q in s2]
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v2 = [tuple(q) for q in v2]
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if len(N.components(net, pads, segs + s2, vias + v2)) < len(groups):
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segs.extend(s2); vias.extend(v2); new_s.extend(s2); new_v.extend(v2)
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logs.append(u'%s：%s.%s → L%s (%.2f,%.2f)，%d 段 / %d 孔' % (net, sp[0], sp[1], l, x, y, len(s2), len(v2)))
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done = True
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break
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if done:
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break
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if not done:
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failed.add(frozenset((q[0], str(q[1])) for q in sm))
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logs.append(u'%s: %s 接不上' % (net, ','.join('%s.%s' % (q[0], q[1]) for q in sm)))
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groups = N.components(net, pads, segs, vias)
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return g0, len(groups)
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steps = order if (order and isinstance(order[0], tuple)) else [(n, 1) for n in order] + [(n, 2) for n in ('SDA', 'SCL') if n in order]
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for net, phase in steps:
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g0, g1 = connect(net, phase)
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stat.setdefault(net, [g0, g1])[1] = g1
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broken = sum(v[1] - 1 for v in stat.values())
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score = (broken, len(new_v), round(sum(L(s) for s in new_s), 1))
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return score, {'segs': [list(s) for s in new_s], 'vias': [list(v) for v in new_v], 'nets': stat, 'logs': logs}
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def main():
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b = json.load(io.open(os.path.join(HERE, '_board_for_nets.json'), encoding='utf-8'))
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segs = [tuple(s[:7]) for s in b['segs']]
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vias = [tuple(v[:3]) for v in b['vias']]
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for k, a in enumerate(sys.argv):
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if a == '--extra':
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e = json.load(io.open(os.path.join(HERE, sys.argv[k + 1]), encoding='utf-8'))
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segs += [tuple(s[:7]) for s in e['segs']]
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vias += [tuple(v[:3]) for v in e['vias']]
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rs = [s for s in segs if s[6] in RIP_NETS and s[0] in (1, 2) and inbox(s[1], s[2], RIP_BOX) and inbox(s[3], s[4], RIP_BOX)
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and not (s[6] == 'SCL' and inbox(s[1], s[2], KEEP_BOX) and inbox(s[3], s[4], KEEP_BOX))]
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rv = [v for v in vias if v[2] in RIP_NETS and inbox(v[0], v[1], RIP_BOX)]
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base_s = [s for s in segs if s not in rs]
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base_v = [v for v in vias if v not in rv]
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print(u'拆除区 %s 内拆掉：%s' % (RIP_BOX, {n: (sum(1 for s in rs if s[6] == n), sum(1 for v in rv if v[2] == n))
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for n in RIP_NETS}))
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pads = [p for p in R.load_pads() if not str(p[1]).endswith(R.TH_SUFFIX)]
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best, scores = None, []
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for order in (STEPS or ORDERS or list(itertools.permutations(RIP_NETS))):
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for w in WIDTHS:
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sc, res = run_variant(order, w, pads, base_s, base_v)
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name = '→'.join(('%s:%d' % t) if isinstance(t, tuple) else t for t in order)
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scores.append([name, w, list(sc)])
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print(u' %-44s 线宽 %.2f：断 %d 块 / %d 孔 / %.1f mm' % (name, w, sc[0], sc[1], sc[2]))
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if best is None or sc < best[0]:
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best = (sc, res, name, w)
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sc, res, order, w = best
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print(u'最优：%s 线宽 %.2f —— 断 %d 块 / %d 孔 / %.1f mm' % (order, w, sc[0], sc[1], sc[2]))
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for m in res['logs']:
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print(u' ' + m)
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res.update({'ripped_segs': [list(s) for s in rs], 'ripped_vias': [list(v) for v in rv],
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'variant': {'order': order, 'w': w}, 'scores': scores, 'pd_refs': ['U36', 'U13']})
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io.open(os.path.join(HERE, '_d16_rip.out.json'), 'w', encoding='utf-8').write(json.dumps(res, ensure_ascii=False))
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if __name__ == '__main__':
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main()
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