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symbol with multiple package variations

autodeskguest

Is there a way to allow, for instance any logic device that uses a DIL14

package to be able to use a variation on that package that has been created

without having to go through the entire logic family individually with the

variation device table linking the symbol with the package? For instance,

with Protel one can double click the symbol in a schematic and specify the

package that is used.

Thanks in anticipation of a reply.

Don

 

 

 

Parents

  • The symbol connection diagram in a logic family for a 14 pin DIL package  is

    already linked for each device in the family, i.e. pin 2 on the symbol

    diagram goes to pin 2 of the package. Now a package variation  which may

    only be a pad dimension change or a drill hole variation means that pin 2

    symbol is still going to go to pin 2 package and the connection diagram

    would remain the same. Unfortunately with Eagle, this new package variation

    has to be linked in the library to every part in a family and requires a

    fair bit of work. This can be made easier by the copy command in the library

    device editing procedure but is still tedious. A generic 14 pin footprint of

    the package variation substitution would be in my view, a lot easier where

    as in Protel, the schematic symbol on the users schematic diagram is double

    clicked and the package variation is specified. In that way, package

    variations can be changed on the fly. However, Eagle is great s/w and I can

    live with minor inconveniences such as this.

     

    "Gary Gofstein" <ggofstein@lbl_nospam.gov> wrote in message

    news:g2cc83$us5$1@cheetah.cadsoft.de...

    Not sure I understand your question, Change.Package in v4.16 will let you

    change the package on board with just a click. But only if that package

    has been previously linked to the part in the library. Otherwise, how

    would EAGLE know which pins to connect to which signals in the new

    package?

    Hope this helps...

     

     

     

Reply

  • The symbol connection diagram in a logic family for a 14 pin DIL package  is

    already linked for each device in the family, i.e. pin 2 on the symbol

    diagram goes to pin 2 of the package. Now a package variation  which may

    only be a pad dimension change or a drill hole variation means that pin 2

    symbol is still going to go to pin 2 package and the connection diagram

    would remain the same. Unfortunately with Eagle, this new package variation

    has to be linked in the library to every part in a family and requires a

    fair bit of work. This can be made easier by the copy command in the library

    device editing procedure but is still tedious. A generic 14 pin footprint of

    the package variation substitution would be in my view, a lot easier where

    as in Protel, the schematic symbol on the users schematic diagram is double

    clicked and the package variation is specified. In that way, package

    variations can be changed on the fly. However, Eagle is great s/w and I can

    live with minor inconveniences such as this.

     

    "Gary Gofstein" <ggofstein@lbl_nospam.gov> wrote in message

    news:g2cc83$us5$1@cheetah.cadsoft.de...

    Not sure I understand your question, Change.Package in v4.16 will let you

    change the package on board with just a click. But only if that package

    has been previously linked to the part in the library. Otherwise, how

    would EAGLE know which pins to connect to which signals in the new

    package?

    Hope this helps...

     

     

     

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