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  3. Nets in the PCB layout not respecting the spacing rules...

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Nets in the PCB layout not respecting the spacing rules provided in the constraint manager

RohitRohan
RohitRohan over 1 year ago

When i am routing the nets in the PCB board i can see that the nets which i routing in the PCB board are not respecting the spacing rules provided in constraint manager. The 2 nets come close to each other normally they should shove, but in case the PCB board which i working, the 2 nets even though different net names when the nets come close to each other instead of shove the nets are overlapping to each to other. In analysis the spacing constraints are enabled but still the nets are overlapping with each other. May i know why the issue is occurring. I have run the DB Doctor also on the PCB file but same results. Currently i am using version 22.1 PCB editor.

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  • steve
    0 steve over 1 year ago

    When you invoke the Route command (Route - Connect) check the Options panel and ensure that the Bubble mode is set to Shove Preferred or Hug, if it is set to Off you will see what you are currently seeing.

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  • RohitRohan
    0 RohitRohan over 1 year ago

    Adding to the above, i have attached an image showing 2 nets overlapping each other even though they are different net name and on the same layer. I have blanked out the nets names due to design confidential.

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  • RohitRohan
    0 RohitRohan over 1 year ago in reply to steve

    The Bubble is set to shove preferred (Image for reference)

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  • steve
    0 steve over 1 year ago in reply to RohitRohan

    OK Check to make sure that the Constraint Modes are enabled (Setup - Constraints - Modes - Spacing). These are the DRC checks for spacing, they need to be turned on. What exact version of 22.1 are you running from Help - About. If it's not 22.1-2022 S008 get that installed and see if that helps.

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  • RohitRohan
    0 RohitRohan over 1 year ago in reply to steve

    Actually i have installed the latest hotfix S008 and tried it but still problem persists, also Steve i have checked with the spacing in the constraints mode all have been enabled. (Image for reference)

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