RTL seed and constraints
Attach the artifact and boundary at this stage before moving the claim forward.
OPENROAD STARTER FLOW
Start with reports.
Then build the repo.
This project turns OpenROAD/OpenLane learning into a small, reviewable artifact: tiny RTL seeds, a fixed parser contract, proxy QoR tables, sample reports, replacement slots, and explicit limits.
FLOW LADDER
Keep every stage inspectable.
The first useful project is not a giant chip. It is one tiny design with conditions, reports, parser output, and a limitation card that another person can review.
Logic synthesis
Attach the artifact and boundary at this stage before moving the claim forward.
Floorplan and utilization choice
Attach the artifact and boundary at this stage before moving the claim forward.
Placement and buffering
Attach the artifact and boundary at this stage before moving the claim forward.
Clock tree synthesis
Attach the artifact and boundary at this stage before moving the claim forward.
Routing and marker review
Attach the artifact and boundary at this stage before moving the claim forward.
STA/QoR report parsing
Attach the artifact and boundary at this stage before moving the claim forward.
Evidence card and limitation note
Attach the artifact and boundary at this stage before moving the claim forward.
REPORT PARSER
Parse the same fields every time.
The browser lab filters saved rows only. The field contract is designed so a future local or CI run can replace proxy rows with real rights-cleared OpenROAD/OpenLane reports.
design
Required in the exported table before a report-derived claim is reusable.
utilization_pct
Required in the exported table before a report-derived claim is reusable.
target_clock_ns
Required in the exported table before a report-derived claim is reusable.
routing_effort
Required in the exported table before a report-derived claim is reusable.
final_cell_count_proxy
Required in the exported table before a report-derived claim is reusable.
route_wirelength_um_proxy
Required in the exported table before a report-derived claim is reusable.
critical_path_ns_proxy
Required in the exported table before a report-derived claim is reusable.
wns_ns_proxy
Required in the exported table before a report-derived claim is reusable.
tns_ns_proxy
Required in the exported table before a report-derived claim is reusable.
congestion_risk_proxy
Required in the exported table before a report-derived claim is reusable.
drc_marker_count_proxy
Required in the exported table before a report-derived claim is reusable.
report_parse_confidence_proxy
Required in the exported table before a report-derived claim is reusable.
SRAM PERIPHERAL PROXY
Memory implementation without private macros.
The SRAM seed is structural: decoder, wordline-driver, precharge, and sense-control style logic. It teaches implementation evidence without publishing a memory compiler macro, foundry deck, or closure result.
Inverter chain
WNS range: 0.39171 ns to 2.61969 ns
Max congestion: 0.99205
Clean reads: 44
8-bit counter
WNS range: -0.24661 ns to 2.21029 ns
Max congestion: 1.03515
Clean reads: 32
SRAM peripheral proxy
WNS range: -0.72077 ns to 1.90676 ns
Max congestion: 1.10805
Clean reads: 23
GITHUB ACTIONS REPRO-CHECK PACKAGE
Copy-ready scaffold, still static.
The v74 package adds a manifest, parser scripts, RTL seeds, sample reports, and a CI workflow skeleton. It verifies report structure only; it does not publish an external repository or run EDA tools on the site.
SA-EDA-OPENROAD-REPRO-CHECK-001
Status: validated_static_package
Files: 16 package files / 3 sample reports / 0 live server runs
Required report fields
flow_id, execution_mode, rows, min_wns_ns_proxy, max_wns_ns_proxy, clean_read_rows, max_congestion_risk_proxy, max_drc_marker_count_proxy, boundary
Included scaffold files
- configs/openroad_proxy_config.example.json
- constraints/example.sdc
- docs/boundary.md
- docs/report_contract.md
- expected/expected_report_fields.json
- LICENSE_NOTES.md
- README.md
- reports/openroad_starter_counter_8bit_qor.rpt
Static reproducibility pack
Use this as a local repo seed after a rights review. Keep real PDK, library, private report, and signoff material out of public artifacts.
Download scaffold zipPACKAGE BACKLOG
Small public projects worth shipping.
These candidates define the next GitHub work. They are artifact specs, not hosted EDA execution or tapeout promises.
Inverter chain RTL-to-report starter
Smallest reproducible flow for synthesis, placement, route, and report parsing.
Artifacts: rtl/top.v, constraints.sdc, config.json, qor.rpt, timing.rpt
8-bit counter timing-closure replay
Shows register-to-register setup pressure and WNS/TNS interpretation.
Artifacts: counter.v, clock.sdc, sta_summary.csv, timing_paths.md
SRAM peripheral decoder and wordline-driver proxy
Connects memory-peripheral structure to placement, fanout, congestion, and timing evidence.
Artifacts: decoder_proxy.v, wl_driver_proxy.v, floorplan_notes.md, route_markers.csv
OpenSTA timing-path parser
Separates clock period, data arrival, required time, uncertainty, and slack.
Artifacts: timing.rpt, parsed_paths.csv, slack_histogram.json
Floorplan congestion heatmap CSV
Teaches why utilization and macro/blockage choices shape routing risk.
Artifacts: congestion.rpt, congestion_tiles.csv, route_risk_card.md
DRC marker triage report replay
Keeps rule-deck details private while teaching marker grouping and evidence cards.
Artifacts: drc.rpt, marker_taxonomy.csv, triage_notes.md
Liberty corner comparison
Shows why corner, voltage, temperature, and library choice must stay attached.
Artifacts: corner_manifest.json, setup_slack.csv, hold_slack.csv
CTS skew and latency report reading
Connects clock-tree state to timing paths without implying signoff quality.
Artifacts: cts.rpt, skew_table.csv, clock_tree_notes.md
EXPORTS AND SOURCES
Use the files, keep the limits.
Every download is static and public-safe. The sources anchor vocabulary; they do not turn proxy rows into real implementation QoR.
Project artifacts
Official anchors
PUBLIC BOUNDARY
Readable, not executable.
No live OpenROAD, OpenLane, OpenSTA, SPICE, TCAD, account, payment, comment, newsletter, job, or event workflow is active. No PDK redistribution, proprietary source mirroring, tapeout-ready flow, product claim, or signoff claim is made.