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Auto router with failed connections, but no ratlines to locate issue
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rehsd 2 years ago
I have a project where the auto router is unable to complete all connections. I am trying to locate the root cause of the issue. Normally, I view ratlines to find the failed connections. In this project, I see no ratlines after the routing failure. How can I get more details on the failed connections? Thank you! ![fail.png](//image.easyeda.com/pullimage/Eelde7MN2g2cF4pQPXA6xXqa3JDit5pw4yTDB7So.png) ![ratlines.png](//image.easyeda.com/pullimage/1gMQk5dH6YudCKaVOmD9UZm7Bvec5pHybLh4Lsha.png)
Comments
andyfierman 2 years ago
Check Nets and DRC results in the PCB Design Manager?
Reply
rehsd 2 years ago
Hi, @andyfierman. Nets look good. I have some clearance issues within a breadboard component that I'm using, but previous auto routing on this circuit with that component have completed successfully. I don't see any other warnings other than the clearance issue within the breadboard component. ![expansion proto 2.png](//image.easyeda.com/pullimage/7mbrl7YKCgEHyZCnoYurJZQNr4GxQjOQYdJEkexa.png)
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rehsd 2 years ago
Interestingly, if I skip VCC and GND when auto routing, it completes with no failures. I am running a four-layer PCB with VCC and GND inner planes.
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rehsd 2 years ago
I had to revert to two-layer, delete the breadboard components, auto route, re-add the breadboard components, go back to four-layer, and auto route again to see the failed ratlines.
Reply
andyfierman 2 years ago
@rehsd, You probably need to either cgsnge the Category to Bug Report or post a summary of this topic as a separate Bug Report.
Reply
UserSupport 2 years ago
you can try third-party auto router, export the DSN file easyeda auto router not good
Reply
andyfierman 2 years ago
@UserSupport, The issue here is not so much about how good the EasyEDA autorouter is but more about why the ratlines are not being rendered to show the unrouted nets.
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