8000 Freerouting leaves nets unrouted in 90 degree mode · Issue #413 · freerouting/freerouting · GitHub
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Freerouting leaves nets unrouted in 90 degree mode #413

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edwardcwang opened this issue Feb 7, 2025 · 2 comments
Open

Freerouting leaves nets unrouted in 90 degree mode #413

edwardcwang opened this issue Feb 7, 2025 · 2 comments
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8000 bug
Milestone
Future

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@edwardcwang
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Describe the bug
Freerouting leaves nets unrouted in 90 degree mode. The design is 90-degree routable and a proof-of-concept routing is provided.

To Reproduce
Steps to reproduce the behavior:

  1. Open test.kicad_pcb in KiCAD.
  2. File -> Export -> Specctra DSN as test.dsn.
  3. Run freerouting via CLI as per the below.
  4. File -> Importt -> Specctra Session and observe unrouted nets.

Expected behavior
I expected Freerouting to either route the nets or provide more information about why it gave up/quit.

Screenshots

Freerouting output:
Image

Manually routed proof-of-concept:
Image

Environment

  • OS: Ubuntu 24.04 x86_64
  • EDA: KiCad 8.0.7
  • Freerouting version: 2.0.2-SNAPSHOT revision 5b1c365

Note: since Freerouting doesn't appear to have a way to force 90 degree routing via the CLI (as opposed to the GUI), I had to modify trace_angle_restriction below to force it to always be AngleRestriction.NINETY_DEGREE.

freerouting/src/main/java/app/freerouting/rules/BoardRules.java

Line 38 in 5b1c365

private transient AngleRestriction trace_angle_restriction;

Command line arguments

freerouting -ll 7 --gui.enabled=false --router.allowed_via_types=false --router.max_passes=10000 --router.fanout_max_passes=10000 --router.default_undesired_direction_trace_cost=0.01 --router.default_preferred_direction_trace_cost=0.01 --router.start_ripup_costs=1 -oit 0.001 -de test.dsn -do test.ses

Project files
If applicable, include project files like .pro, .kicad_pcb, .dsn.
See https://github.com/edwardcwang/freerouting-90deg-bug

Logs

2025-02-06 19:10:55.910 [main] INFO  Freerouting v2.0.2-SNAPSHOT (build-date: 2025-01-24)
2025-02-06 19:10:57.236 [ForkJoinPool.commonPool-worker-1] INFO  New version available: v2.0.1
2025-02-06 19:10:57.340 [Thread-7] INFO  Auto-router pass #1 on board '1b575aaf9b0e794f2e9428200ff7fe38' was completed in 0.12 seconds
2025-02-06 19:10:57.389 [Thread-7] INFO  Auto-router pass #2 on board 'a458a7ea65d54434e2593994bd7e7469' was completed in 0.04 seconds
@edwardcwang edwardcwang added the bug label Feb 7, 2025
@edwardcwang
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Any updates on this issue?

@andrasfuchs
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Might be related to #367? I'll investigate it further this week.

@andrasfuchs andrasfuchs added this to the 2.1 milestone Mar 5, 2025
@andrasfuchs andrasfuchs mentioned this issue Mar 5, 2025
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@andrasfuchs andrasfuchs modified the milestones: 2.1, Future Apr 12, 2025
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