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New to Allegro

joebrewer109

 Hello, I am trying to develope a board. I have done the schematic in Orcad CIS and created a netlist for the 3 .dat files and have no errors. I have also imported into Allegro and have no errors. But there are no symbols or rat nest on the .brd file I have loaded. From what I understand there should be all my component symbols connected together by a rats nest on top of the board I drew after the import. I go to Place->Manually and I can see all my refdes, but I do not have any package symbols for some reason.  Any help is greatly appreciated, thank you.

  • Bennigin
    Make sure your Design_paths are setup correctly under User Preferences. Especially psmpath and padpath.
  • joebrewer109

    Just check that and found there set to the pcb_lib/symbols folder which is where I saved all my .pad,.dra.psm files.  Is there anything else maybe that could be wrong?

  • Randy R

    When you are in Place->Manually window you will see a checkbox to the left of each refdes.  Click on the checkbox, then check for any error messages in your command window.

  • joebrewer109

    ok, tried checking the boxes on 2 components and I can see the symbol in the footprint preview box but when I click ok this comes up in the command window.

     

    Select elements to place using tree view.
    Objects found on Package Geometry, user defined subclass PASTEMASK_TOP have been moved to the ALLEGRO subclass of the same name.
    Placing C1 / CAP_NP_CAPC3216X70N_0.10UF / CAPC3216X70N .
    W- Scaled value has been rounded off.
    Select elements to place using tree view.
    Objects found on Package Geometry, user defined subclass PASTEMASK_TOP have been moved to the ALLEGRO subclass of the same name.
    Placing U2 / THS4275_SOIC127P600X175-8AN_THS / SOIC127P600X175-8AN .
    W- Scaled value has been rounded off.

  • Randy R

    After selecting one or multiple refdes checkboxes, click on Hide.  You should see the component attached to your cursor.  Click somewhere on your board to place the component.  If you selected more than one refdes, the next component will automatically be attached to your cursor.  Also, click on the Help button in the Place->Manually window for more information.

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