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Making your own Fiducials

Former Member

I have searched here on the forum to find out where and how fiducials are

done and discovered they are in the marks library. That's all good and well

except I want to make my own, and put them in my own library. I have made a

fiducial, or so it seems, yet I cannot import it into my layout becuase

Eagle complains about back-annotation. I don't understand, in essence my

package (because that's what those "marks" are) is basically the same thing

as the ones in that library. It consists of a pad with a stop mask.

 

what's the problem, why does it not let me import my fiducial?

 

thanks,

 

OW

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

 

  • Owen wrote:

    I have searched here on the forum to find out where and how fiducials

    are done and discovered they are in the marks library. That's all

    good and well except I want to make my own, and put them in my own

    library. I have made a fiducial, or so it seems, yet I cannot import

    it into my layout becuase Eagle complains about back-annotation. I

    don't understand, in essence my package (because that's what those

    "marks" are) is basically the same thing as the ones in that library.

    It consists of a pad with a stop mask.

     

    what's the problem, why does it not let me import my fiducial?

     

     

     

    marks.lbr packages that work as you say do not use any pads.

    When you specify a pad in your package, Eagle stops you from adding it to a

    board if the schematic is open. I guess the logic is; if there is a pad

    there must be a symbol for this device so you can only ADD into the

    Schematic. If you close the schematic, add your fudicial and then open the

    schematic, all will be well and still consistant.

    You could create a fudicial symbol, and device. Place those into your

    schematic

    If you have the Sparkfun library, check out 'fudicial', they do it this way.

     

    HTH

    Warren

     

     

     

  • in reply to Former Member

    Yes, I believe you're right. I DO have a pad, actually it's a round pad.

    And I understand now that it's expecting a symbol of some kind. I'llhave to

    check with the dsigner to see if he wants to have to add a symbol in the

    schematic.

    I'll have a look at sparkfun (wth does that mean anyway!?)

    Thank you again!

     

    OW

    --

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

     

  • in reply to Former Member

    Owen wrote:

    Yes, I believe you're right. I DO have a pad, actually it's a round

    pad. And I understand now that it's expecting a symbol of some kind.

    I'llhave to check with the dsigner to see if he wants to have to add

    a symbol in the schematic.

    I'll have a look at sparkfun (wth does that mean anyway!?)

     

    http://www.sparkfun.com

     

    Sparkfun Eagle library

    https://github.com/sparkfun/SparkFun-Eagle-Library/archives/master.