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Via NAME error

Former Member

On my current design, I am having trouble naming vias using the NAME command.  When I use the NAME command, and try to assign it to an existing net (e.g. GND), I get an error: "Cannot backannotate this operation. Please do this in the schematic!"

 

This does not make sense.  I should be able to rename the via. Any suggestions?

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  • Alex Hunter wrote:

    On my current design, I am having trouble naming vias using the NAME

    command.  When I use the NAME command, and try to assign it to an

    existing net (e.g. GND), I get an error: "Cannot backannotate this

    operation. Please do this in the schematic!"

     

    This does not make sense.  I should be able to rename the via. Any

    suggestions?

     

    if the via belongs to an already existing net (has the same name as),

    you can't rename it in the board.

    This would rename the net containing the via and so combine the two

    nets.

    This on the other hand  could change the schematic, which is only

    allowed in the schematic editor.

     

     

    Why do you need to rename via on the board at all?

     

    If you want to place additional GND vias it is much easier to use "via

    'netname" beforehand.

    --

     

    Lorenz

     

  • in reply to autodeskguest

    On 5/12/2013 7:25 p.m., Lorenz wrote:

    Alex Hunter wrote:

    On my current design, I am having trouble naming vias using the NAME

    command.  When I use the NAME command, and try to assign it to an

    existing net (e.g. GND), I get an error: "Cannot backannotate this

    operation. Please do this in the schematic!"

     

    This does not make sense.  I should be able to rename the via. Any

    suggestions?

     

    if the via belongs to an already existing net (has the same name as),

    you can't rename it in the board.

    This would rename the net containing the via and so combine the two

    nets.

    This on the other hand  could change the schematic, which is only

    allowed in the schematic editor.

     

     

    Actually, at least with v6.5, you can rename a via on the board and the

    traces are renamed. Also the schematic nets are changed to match.

     

    Which version is Alex using?

     

    HTH

    Warren

     

     

  • in reply to autodeskguest

    On 05/12/13 07:37, warrenbrayshaw wrote:

     

    Actually, at least with v6.5, you can rename a via on the board and the

    traces are renamed. Also the schematic nets are changed to match.

     

    This is also true of V5, but only if you're renaming it to a new,

    pristine, as-yet-unused name. If you try to rename a via that's on an

    existing net to the same name as another existing net, then you've

    joined two nets and this is a structural change to the schematic which

    isn't allowed from the board editor.

     

     

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  • in reply to autodeskguest

    On 05/12/13 07:37, warrenbrayshaw wrote:

     

    Actually, at least with v6.5, you can rename a via on the board and the

    traces are renamed. Also the schematic nets are changed to match.

     

    This is also true of V5, but only if you're renaming it to a new,

    pristine, as-yet-unused name. If you try to rename a via that's on an

    existing net to the same name as another existing net, then you've

    joined two nets and this is a structural change to the schematic which

    isn't allowed from the board editor.

     

     

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