Importing Copper from Reference Design
Thought for 18 sec
I’ll compare the imported reference block against its source, reconcile the matching copper, then run a board check to verify the result.
Worked for 1 min 15 sec
The preview found 26 traces and 4 vias available; copper tied to D1 and four changed nets will be safely excluded rather than forcing mismatched routing. I’m checking that placement difference before importing the compatible remainder.
Worked for 2 mins 26 sec
Imported the compatible copper from the USB-C reference block: 26 trace segments, 4 vias, 1 keepout, and 7 rulesets. Verified the copper exists in the layout with no reported overlap, floating-copper, dangling-trace, or invalid-layer issues.
Open items
- D1 and nets Net 86, Net 103, VUSB, and VBUS were safely excluded because they differ from the reference.
- Seven airwires remain, primarily on VBUS and the ORing path.
Suggested next steps
- Manually route the excluded power/ESD nets.
- Resolve the remaining airwires.
- Run a full DRC after routing.
Route, verify, run DRC
Route excluded nets
Clear all airwires
Verify power integrity
Run full DRC
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Reference Block Plan
USB-C power entry and battery ORing
- Classification: Exact
- Matched reference:
flux-reference-design/usb-c-2p0-power-entry-and-esd-protection-reference-design - Decision: Import the complete standalone reference as one functional block.
- Fit: USB-C 2.0 receptacle, 5.1 kΩ CC sink resistors, USB data ESD protection, VBUS/VBAT inputs, and Schottky/P-channel MOSFET power-path ORing to PP5V0.
- Placement: Preserve the reference schematic and PCB component arrangement; defer copper reconciliation until final placement.
- Import status: Complete. Imported as functional group
USB-C Battery ORing. - Deferred copper block ID:
363aa35a-e192-44c5-903e-70d9bddf71f0 - Verification: 18 schematic objects, 16 nets, and 10 PCB footprints imported. ERC has only expected warnings for unused SBU pins and the two protected USB data outputs awaiting downstream connection.
USB-C power entry and battery ORing
