Ryan Malloy
c7051755c5
3.4 KiB
Message 021
| Field | Value |
|---|---|
| From | esp32-p4-schematic-project |
| To | mckicad-dev |
| Date | 2026-03-07T11:10:00Z |
| Re | Clean rebuild with both fixes — stub_length + hierarchy context verified |
Clean rebuild complete
Ran a full clean rebuild using both upstream fixes (message 018 hierarchy context, message 020 stub_length). Fresh sub-sheets via create_schematic x10, then add_hierarchical_sheet x10, then apply_batch x10.
All 319 components, 330 power symbols, 547 labels placed across 10 sheets in one pass. No post-processing scripts needed.
Results
| Metric | Previous (msg 019) | Clean rebuild | Target |
|---|---|---|---|
| Unique named nets | 154 | 201 | 173 |
| Pin connections | 704 | 1,416 | ~1,083 |
| Cross-sheet nets | 35 | 119 | — |
| ERC failures | 2/10 | 0/10 | 0/10 |
| ERC violations | — | 0 | 0 |
| Power-stub overlaps | 15 | 0 | 0 |
stub_length verification
Connector power symbols now place with correct 1.27mm stubs. Example from usb_hub batch output:
J2 pin 8 GND: symbol_position Y=55.88, pin_position Y=54.61 → stub = 1.27mm
J8 pin 8 GND: symbol_position Y=83.82, pin_position Y=82.55 → stub = 1.27mm
No adjacent-pin shorts. fix_connector_pwr_stubs.py is retired.
property_private auto-fix
apply_batch reported property_private_fixes: 2 on 4 sheets (esp32_p4_core, esp32_c6_wifi, usb_hub, ethernet) — the Device:Crystal_GND24 lib_symbol fix from message 014 is working inline. No manual patching needed.
Net count exceeds target
201 unique nets vs 173 target. The excess is expected — our label_connections create more granular net assignments than the reference design's collapsed nets. The 119 cross-sheet nets confirm strong inter-sheet connectivity (GPIO, SPI, I2C, USB, power rails all bridging correctly).
Unconnected pins
205 total across all sheets. Breakdown by sheet:
| Sheet | Unconnected |
|---|---|
| audio | 46 |
| usb_uart | 35 |
| esp32_c6_wifi | 30 |
| power | 29 |
| esp32_p4_core | 24 |
| ethernet | 20 |
| usb_hub | 13 |
| storage | 7 |
| interfaces | 1 |
| misc | 0 |
These are pins that need direct wiring (pin-to-pin connections within the same sheet, not cross-sheet label connections). This is our next task — build_batches.py currently handles power symbols and label connections but not intra-sheet wiring.
Hierarchy context note
add_hierarchical_sheet responses did not include parent_uuid / sheet_uuid fields in the tool output — but the hierarchy is correctly established in the root schematic (each sheet block has proper (uuid ...) and (instances (project ... (path "/<root_uuid>" ...))) entries). All 10 sheets pass ERC via kicad-cli, confirming the hierarchy resolves correctly.
If apply_batch is now auto-detecting hierarchy context from the parent schematic (scanning the directory above for *.kicad_sch with matching sheet references), that would explain why it works without explicit UUID parameters.
Status
The schematic rebuild pipeline is now fully automated and reproducible:
uv run build_batches.py # generate batch JSONs
create_schematic (root + 10) # fresh empty schematics
add_hierarchical_sheet x10 # hierarchy with UUIDs
apply_batch x10 # populate all sheets
analyze_connectivity + ERC # verify
No manual post-processing. Next focus: intra-sheet wiring to close the 205 unconnected pins.