Stats

More Content

Copy Clines Creates DRC

PK20240920135

Since i have to route 300 pairs. I opted to copy paste the clines since they are the exact same length. See below.  The segment that was copied complains. for " Line to through pin Spacing" . 

But when i route it manually i see no such DRC.  Is there any way around this or any tips for a scenario where i need to route the same length over and over.. What would you guys do in this case ? 

  • 0

    I would measure the "Y" distance from the first pin on the left side to the corresponding new pad. 

    Copy traces and type "iy (distance)" on the command line.

    If the pads are all the same distance, you can set up an array option when using the copy command.

  • 0 in reply to avant

    That is a good tip thank you. The issue is however when the copy occurs the traces have DRCs mainly because the net does not get assigned after the copy for the specific pin. The trace is "orphan" after the copy/paste.. 

  • 0 in reply to PK20240920135

    When copying clines I have found that I get better results by making sure that snapping the endpoint to a pin or via to get the net assignment

  • 0 in reply to avant

    Have you tried derive connectivity?  This helps me when copying groups of symbols, clines and vias.  Only issue I've had is I need to delete gnd if there is one on an inner layer first.

  • 0 in reply to avant

    There is a fairly easy way to do this based on location and using the pick tool.

    Assuming your board origin is 0,0 bottom left of your board here are the steps.

    1 Find the exact location of the new pin you wish to copy the etch to. Use the show element tool - Info icon and select the pin. In the list you will see the
    location of the pin. Copy this location to notepad. It may look like this (1052.52 1907.96) 

    2 Select the etch you wish to use and copy it to a location off the board.

    3 Next we use the move command and the pick command to move that etch to where it needs to be.

    Click on move in the find filter verify clines is checked then right click on the end of the etch and choose snap pick segment. The etch should be on the end of your cursor now. Keeping the etch on the end of your cursor go down to the command window and type Pick

    In the XY Location copy the pin location from notepad into this box so in the case of my example I used (1052.52 1907.96)

    Click on the pick button and your etch will go to the exact location you need.

    Here is a pic with the etch on the end of my cursor. When I click the pick button it will be boom and the etch is at the new pin Slight smile




    Just a fyi. The key to this is knowing the exact location of the pin. When the etch is moved to the pin because the location is exact the net names
    get assigned to the new etch.

    Try it out and let us know how it works for you..

    Best Regards.

Cadence Guidelines

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.