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internal part connection and routing

jonhpeterson

eagle cad v 7.2.0

i have a part (didn't design it) with 3 pads and two pins:

add=next

swap=0

G$1.+ VCC@1 VCC@2

G$1.- GND

airwire and routing only to one of the VCC pads.

airwire will not go to the other VCC pad and routing to the other pad does not resolve the airwire.

I thought that either of the two pads should satisfy the routing and remove the airwire.

Does anyone have any ideas?

Thanks.

  • 0

    On 29/03/2015 5:13 p.m., Jon Peterson wrote:

    eagle cad v 7.2.0

    i have a part (didn't design it) with 3 pads and two pins:

    add=next

    swap=0

    G$1.+ VCC@1 VCC@2

    G$1.- GND

    airwire and routing only to one of the VCC pads.

    airwire will not go to the other VCC pad and routing to the other pad

    does not resolve the airwire.

    I thought that either of the two pads should satisfy the routing and

    remove the airwire.

    Does anyone have any ideas?

     

     

    I mocked up a part as you describe and it worked as expected on v6.6 and

    v7.1 so post the library part so we can evaluate it.

     

     

    Warren

     

     

     

  • 0 in reply to autodeskguest

    Not sure how to get just the part. It is the BATTERY/BATTERY12PTH part from the SparkFun-Electromechanical.lbr from https://github.com/sparkfun/SparkFun-Eagle-Libraries

    I modified the part to connect both positive pads to the single pin.

    And you are right, it routes OK if you put the device on the schematic not the package! My bad. (not sure why Eagle allows this to happen.)

    The only oddity left is that there is a airwire from pad to pad on the board. It passes all DRC checks. One would think there would be no airwires since the circuit is completed successfully. Thanks for helping me out. Jon

  • 0 in reply to jonhpeterson

    Jon Peterson wrote on Mon, 30 March 2015 09:26

    ...The only oddity left is that there is a airwire from pad to pad on

    the

    board. It passes all DRC checks. One would think there would be no

    airwires since the circuit is completed successfully. Thanks for

    helping

    me out. Jon

    ]

     

     

    It's a shame but correct that there is an airwire left as that pad has not

    been connected and the design/library part has specified that that pad

    shall be connected to the pin specified in the library part. The software

    cannot know the pin is connected via the installed component.

     

    All the best

    Warren

    --

    Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

     

  • 0

    Jon Peterson wrote:

     

    eagle cad v 7.2.0

    i have a part (didn't design it) with 3 pads and two pins:

    add=next

    swap=0

    G$1.+ VCC@1 VCC@2

    G$1.- GND

    airwire and routing only to one of the VCC pads.

    airwire will not go to the other VCC pad and routing to the other pad

    does not resolve the airwire.

    I thought that either of the two pads should satisfy the routing and

    remove the airwire.

     

    In the device editor you can either use 'connect all' or 'connect any'

    to connect the pads to a pin.

     

    The former results in the layout editor showing air wires to all pads,

    the latter lets the editor be content with only one pad routed.

    --

     

    Lorenz

     

  • 0 in reply to autodeskguest

    Had a little struggle with the command syntax. But got it to work. Big Thanks.

     

    Jon