rsp2k
a6aa1991a1
The router began as a port of FreeRouting and has grown its own engine (negotiated congestion, tree nets, exact checks, axis escapes), and 'freeroute' was one letter from the project it no longer follows. The package, module and command are now rpmroute; the freeroute command stays as an alias, and the RPMROUTE / RPMROUTE_ORACLE_JAVA variables fall back to the old FREEROUTE names. Version 2026.10.07. Routing is unchanged: a PCBench board routes to a byte-identical session either way.
43 lines
1.6 KiB
Python
43 lines
1.6 KiB
Python
"""Net classes wider than the default are routed at their width where it fits."""
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from __future__ import annotations
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from rpmroute.dsn import parse_dsn
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from rpmroute.route.pipeline import build_exact_routing_result
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_BOARD = """(pcb widths (parser) (resolution um 10) (unit um)
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(structure
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(layer F.Cu (type signal))
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(boundary (path pcb 0 0 0 20000 0 20000 -10000 0 -10000 0 0))
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{keepouts}
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(rule (width 150) (clearance 150)))
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(placement (component S (place P1 2000 -5000 front 0) (place P2 18000 -5000 front 0)))
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(library (image S (pin pad 1 0 0)) (padstack pad (shape (rect F.Cu -600 -600 600 600)) (attach off)))
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(network (net PWR (pins P1-1 P2-1))
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(class Power PWR (rule (width 400) (clearance 150)))))"""
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# two keepouts leave a 0.65 mm channel: room for 0.15 mm (0.45), not for 0.4 mm (0.7)
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_CHANNEL = (
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'(keepout "" (polygon F.Cu 0 9000 0 11000 0 11000 -4675 9000 -4675))\n'
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' (keepout "" (polygon F.Cu 0 9000 -5325 11000 -5325 11000 -10000 9000 -10000))'
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)
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def _route(keepouts=""):
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return build_exact_routing_result(parse_dsn(_BOARD.format(keepouts=keepouts)), resolution=2)
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def test_a_wider_class_is_routed_and_written_at_its_width():
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result = _route()
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assert result.unrouted == [] and result.narrowed == []
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widths = {w.width for net in result.nets for w in net.wires}
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assert widths == {400.0}
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def test_a_wider_class_that_does_not_fit_falls_back_to_the_default():
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result = _route(_CHANNEL)
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assert result.unrouted == []
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assert [net for net, _a, _b in result.narrowed] == ["PWR"]
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widths = {w.width for net in result.nets for w in net.wires}
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assert widths == {150.0}
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