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Forward annotate an updated schematic

Former Member

Hello,

 

  I am new to Eagle. I made a schematic and generated a layout. After arranging the components and doing part of the routing, I realised I had to connect the jumper pins. So I went back to schematic and added 2 jumpers & connected the signal wires. In the PCB layout, I found the 2 jumpers pads but not the airwires.

 

Is there any way to get the air wires in the PCB.

 

Thanks,

Arvidn Gupta.

  • 0

    Arvind Gupta wrote:

    Hello,

     

    I am new to Eagle. I made a schematic and generated a layout. After

    arranging the components and doing part of the routing, I realised I

    had to connect the jumper pins. So I went back to schematic and added

    2 jumpers & connected the signal wires. In the PCB layout, I found

    the 2 jumpers pads but not the airwires.

     

    Is there any way to get the air wires in the PCB.

     

    Thanks,

    Arvidn Gupta.

     

    First, on the board perform a RATSNEST

    If that does not make the airwires appear then move over to the schematic.

    The probable cause is the NETs are not connected to your jumper.

    Perform a move on your jumper part. If the nets dont move with the part that

    is you problem.

    Ensure you use NET and not WIRE when you connect parts.

     

    All the best

    Warren

     

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  • 0 in reply to Former Member

    Yes, That exactly is the problem. When I move the jumpers in the schematic, the wires dont move. Also, I had used wires instead of nets. When I tried to replace them wih nets, after doing so and checking their property, it still was showing "wire" only. Pls. let me know how to convert the wire to net and if there is any way of fixing the net/wire to the jumper (I tried by double left clicking, it did not work).

     

    Thanks for replying,

    Arvind Gupta

  • 0 in reply to Former Member

    Arvind Gupta wrote:

    Yes, That exactly is the problem. When I move the jumpers in the

    schematic, the wires dont move. Also, I had used wires instead of

    nets. When I tried to replace them wih nets, after doing so and

    checking their property, it still was showing "wire" only. Pls. let

    me know how to convert the wire to net and if there is any way of

    fixing the net/wire to the jumper (I tried by double left clicking,

    it did not work).

     

    Thanks for replying,

    Arvind Gupta

     

    A net is a wire on the nets layer so it will appear as a wire in the

    properties and lower down in the properties you will see it has a net name

    like N$2 for example.

    Net has a bit more automation attached to it so drawing with net will be

    more successful.

     

    The schematic and all devices you add to it  need to be created with a grid

    set to 0.1".

    In that way the pin connection points are on the grid and so your net will

    attach to the pins reliably .

    If your device has been placed off-grid, select it with the CTL key

    depressed and it will jump to the grid.

    The last advice is to start the net connection at the jumper device first.

    The net should snap to the pin and connect .

     

    All the best

    Warren

     

     

     

     

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