History

Ryan Malloy 49c258e81d Add crossing fixture and multi-layer/via routing tests

Adds crossing_2net.dsn: NET_A is a full-width horizontal wall and NET_B's
pins sit above and below it, so single-layer routing cannot connect NET_B
but two-layer routing succeeds by dipping to the other layer through vias.

Tests assert the multi-layer invariants: single-layer routing leaves a net
unrouted with no vias; multi-layer connects both nets with >= 1 via; the
SES contains a via scope; every via sits at a real layer transition of its
net's path; trace/via endpoints still land on the pads; traces stay on
valid layers and within the outline; and no two different nets cross on the
same layer. Oracle-gated parity tests cover the simple and crossing boards.

2026-07-12 13:21:00 -06:00

crossing_2net.dsn

Add crossing fixture and multi-layer/via routing tests

2026-07-12 13:21:00 -06:00

empty_board.dsn

Implement Specctra DSN parser with typed board model

2026-07-11 15:21:18 -06:00

kicad_routable.dsn

Add FreeRouting JAR oracle harness for behaviour-level validation

2026-07-12 08:12:03 -06:00

README.md

Implement Specctra DSN parser with typed board model

2026-07-11 15:21:18 -06:00

simple_2net.dsn

Add MVP grid maze router and DSN->SES routing pipeline

2026-07-12 11:25:03 -06:00

smd_demo.dsn

Implement Specctra DSN parser with typed board model

2026-07-11 15:21:18 -06:00

README.md

DSN test fixtures

Hand-crafted minimal Specctra DSN files, written to exercise the parser. They are modeled on the real fixtures shipped in the upstream FreeRouting repo (fixtures/empty_board.dsn and fixtures/SMD-routing-issue-demo.dsn) so the grammar and formatting match what kicad-cli pcb export specctra-dsn and FreeRouting itself produce, but they were typed fresh here (no upstream file is copied into this tree).

empty_board.dsn — the smallest valid board: parser, resolution, unit, and a structure with two signal layers and a pcb boundary path. Modeled on FreeRouting fixtures/empty_board.dsn.
smd_demo.dsn — a fuller board exercising every scope the parser handles: quoted board/padstack/image names, via, default rule (width + clearance with a (type smd_smd) pair), a keepout, padstacks (rect and circle pads), images with pins, placement with front/rotation, nets with Comp-Pin references, and a class with circuit/use_via and a rule. Modeled on FreeRouting fixtures/SMD-routing-issue-demo.dsn.