<一句话说清『这个 skill 做什么 + 何时调用』。把最关键的触发场景放最前面。结尾给 2-3 个用户会说的关键词。>
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amoslee2026/Babel49Updated Aug 4, 2026
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bb-invoke-netgen
调用 Netgen 1.5.275 做 LVS 对比：综合网表 vs Magic 提取的 SPICE，必须 match 才能 signoff。触发场景：(1) bba-guru-pd extract 后做 LVS；(2) 显式 /bb-invoke-netgen。
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See how to installFiles included (7)
- SKILL.md2.7 KB
- Gotcha/lvs_pitfalls.md3.5 KB
- Gotcha/netgen_pitfalls.md2.5 KB
- references/asap7_netgen_setup.md1.5 KB
- scripts/parse_lvs.py3.7 KB
- scripts/render_netgen.py3.1 KB
- scripts/run_netgen.py4.2 KB
SKILL.md (original)
Review the instructions the agent will receive before you install.
bb-invoke-netgen
职责
对比 schematic netlist（综合 netlist.v）与 layout netlist（Magic extracted.spice），输出 LVS 报告，必须 match。
- 调用者：
bba-guru-pd - 上游：
bb-invoke-magic(action=extract) - 禁止使用：Task / Agent / Skill
Input Args
| arg | type | required | 说明 |
|---|---|---|---|
| schematic_netlist | path | true | designs/<name>/synth/netlist.v |
| layout_netlist | path | true | designs/<name>/pd/extracted.spice |
| tech_file | path | true | ASAP7 netgen setup file（.tcl） |
| top_module | string | true | — |
| design_name | string | true | — |
| stamp | string | false | <auto YYYYMMDD-HHMMSS> |
Output Contract
| field | 值 |
|---|---|
artifact_path | designs/<name>/pd/lvs_report.txt |
log_path | designs/<name>/pd/netgen_<stamp>.log |
match | bool（"Circuits match uniquely"） |
discrepancies | [{kind, instance, schematic, layout}] |
valid | bool |
error | string|null |
4-Phase 执行
Phase 1 — render_netgen_cmd
scripts/render_netgen.py 生成 batch 命令：
netgen -batch lvs \
"designs/<name>/pd/extracted.spice <top>" \
"designs/<name>/synth/netlist.v <top>" \
<tech_file> \
designs/<name>/pd/lvs_report.txt
Phase 2 — run_netgen
scripts/run_netgen.py：
source ~/wrk/eda_opensources/eda_env.shnetgen -batch lvs --version 2>&1 | grep "1.5"否则VERSION_MISMATCHtimeout 600 netgen -batch lvs <args> > <log> 2>&1- log 追加
exit:<rc>
Phase 3 — parse_lvs
scripts/parse_lvs.py 扫描 lvs_report.txt：
- 末尾
Circuits match uniquely.→match=true Circuits differ→match=false，提取后续Net mismatch/Device mismatch段为discrepancies
写 lvs_<stamp>.json。
Phase 4 — return
返回 JSON。bba-guru-pd：
- match=true → 进入
bb-invoke-opensta(mode=post_pd) - match=false → 黑盒/命名冲突，开
synth-needs-fix
收敛 / 失败
| 状态 | 行动 |
|---|---|
| match=true | 进 post-PD STA |
| match=false | 开 synth-needs-fix |
VERSION_MISMATCH | 修 eda_env.sh |
| Phase 2 timeout（600s） | error="LVS_TIMEOUT" |
资源索引
scripts/render_netgen.py、scripts/run_netgen.py、scripts/parse_lvs.pyreferences/asap7_netgen_setup.md— setup file 与 device mapGotcha/lvs_pitfalls.md— 黑盒、port order、电源 net 命名
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