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Eagle Library

quantasonics

I am trying to learn Eagle by making a schematic that uses a TI OPA1632 full differential opamp. This device is not in the Eagle libraries as far as I can tell.

 

I am encountering TWO (2) related issues...

 

On the Element14 site I find a CAD file for this device and follow the instructions in a README file

1. Start Eagle

2. Select File -> New -> Library

3. In blank library window, select File -> Script      [this item does not exist. There is an EXECUTE SCRIPT option which I assume is what we want. This opens a library window]

4 Select the EDIT tab    [this is impossible as that window with that option is now covered by the library window I just opened with the EXECUTE SCRIPT]

5. Browse to the correct EAGLE script file [I do this and find the OPA1632 script where I stashed it]

6. After opening the file, the script will populate the new library

7. Use FILE -> SAVE (or Save As ..) to save the library to the desired location in EAGLE native format.

 

SO, after doing what is feasible, I see a large library listing with my new library included.

 

BUT, when I go to the schematic editor, that library is not present. I've gone around this prickly pear several times and get the same non-result.

 

Also, I can inspect the contents of the OPA1632  library item from that lib window, and it has the correct PCB pad. However, the schematic symbol is not useful -- a box with named signal I/Os and no pin numbers. What is desired here is the symbol we find in the data sheet -- a typical opamp triangle etc.  I tried to edit the symbol but got an error that to do so would exceed the number of pads allowed.

 

I really need some guidance

 

THanks

Gary Nelson.

  • Hi Gary,

     

    I think the issue you are now having is the library is not selected for use. You can confirm this by going to the main EAGLE Control Panel window and look at the list of libraries. You should see that all the libs have a green dot to the right hand side of them. I suspect your new lib will have a grey dot. If this is the case then simply right click on your new library and select 'Use'. The dot will go green and the library should now show up in your schematics.

     

    Best Regards,

     

    Rachael

  • Gary Nelson wrote:

    I am trying to learn Eagle by making a schematic that uses a TI

    OPA1632 full differential opamp. This device is not in the Eagle

    libraries as far as I can tell.

     

     

    Also, I can inspect the contents of the OPA1632  library item from

    that lib window, and it has the correct PCB pad. However, the

    schematic symbol is not useful -- a box with named signal I/Os and no

    pin numbers. What is desired here is the symbol we find in the data

    sheet -- a typical opamp triangle etc.

     

    that's element14 for you 8-)

     

    I tried to edit the symbol but got an error that to do so would exceed

    the number of pads allowed.

     

    that sounds like you trying to add additional symbols to a device.

     

    A part in an eagle library consists of one or more symbols and one or

    more - alternative - packages.

    A device is the structure use to describe the relation between the

    symbol pins and the package pads.

     

    So to change the symbol, you need to find out its name from the device

    editor, then open it in the symbol editor. There you can rearrange the

    pins and decorative lines to your liking.

     

    To see pin numbers in the symbol you have to change the visibility,

    which is a property of the pin.

    --

     

    Lorenz

     

  • in reply to autodeskguest

    Thanks. I'm making progress.

     

    I don't know where to find DEVICE EDITOR and SYMBOL EDITOR

     

    I need to make a custom part with an SO8 package and vendor defined pinout -- no support from vendor.

    I have invoked a library item where the symbol looks ok for this app, but need to assign pin numbers, and then associate it with an SO8 pad.

     

    Probably obvious once you know...

     

    It took a while to understand the UI, but now that part is becoming easy. Thanks for the help...

    The library is my present challenge.

     

    Forthcoming, I have several small odd shaped PCB outlines as DXF files that I would like to import for PCB layout. Each manufactured board wants to have several of these smaller boards routed around (with a small cutter like .1") leaving little tabs to snip off later and liberate the boards.

    Should I position and define this set of sub-boards with routing before import, or are there drafting tools to do that in Eagle?

  • in reply to quantasonics

    Gary Nelson wrote:

    Thanks. I'm making progress.

     

    good to here

     

     

    I don't know where to find DEVICE EDITOR and SYMBOL EDITOR

    the library editor provides separat sub-editors for package, symbol

    and device which are often refered to as package editor, symbol editor

    and device editor

    --

     

    Lorenz