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Associating multiple symbols with one package

MEQueen

Much like there are two symbols available for a resistor -- horizontal and vertical -- I have a second symbol for a part that I want to associate with the same package that already has one symbol associated with it.  I have successfully created the symbol, but it is orphaned . . . it has no associated package (see attached image).  I want to associate this new second symbol with the existing package.  Have searched documentation and forums to no avail.  Any suggestions?

Using Part Developer in Allegro DEHDL 16.5.

  • chads108

    Are the pin names for sym_2 identical to sym_1?  If so, I think it should associate itself just by clicking on it.

    Chad

  • MEQueen

    From the tree view in my included image above, I expected to be able to right click on a symbol and then be able to explicitly specify its association with which functional group in which package and then any errors would be reported that would make the association invalid/broken . . . Allegro doesn't work that [intuitive] way.

    When I edited a copy of sym_1, which became sym_2, in order to put inputs on the left, outputs on the right, bubbles on active low inputs and outputs, and group signals logically -- performing a general refinement of the original coarse symbol which had to be preserved for historic reasons -- I had deleted an NC pin and this broke the association.  Adding the NC pin back to sym_2 automatically created the association like you said.  I must have ignored the original error since I could place the symbol on the schematic and now am dealing with it during packaging.

    Playing around while trying to recreate what I did, Allegro does give an error when saving  the part after the NC pin is deleted on sym_2 and states to use the "Interface Comparison" tool to determine the mismatch between package and symbol pins.  Alas, this extremely complex capability to do a side by side listing of pin names requires a higher level license.

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