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Adding a pin to my PCB

Cmusgrove

I started a new job, where they are using Cadece/Allegra/Orcad 16.3.  I've laid my own boards out for 20 years and using several different programs but never Orcad.  I'm having some troubles figuring out how to do simple things in the PCB.  

I need to create a part, its a DC-DC converter AGF700-48S30LT.  I need 3 different hole sizes.  I've gone through the wizard and just normally but I can't seem to figure out how to add a pin.  It appears that pins have to have their own file/drawing, so I created some hole files (this seems insane to me but it seems to be how it works).  I created the pins through Tools>Padstack>Modify Design Padstack then right clicking on the pad and selecting edit.  This let me create pads.  

However when I create the pad if I keep the name the same it will modify all the pins rather than just one.  Through the wizard it created 2 pin types one for pin 1 and one for all the other pins.  But I need 3 pin types.  

I've tried adding a pin, by selecting Layout>Pins then I select click somewhere, and I get the message No padstack specified. 

Also I can't seem to change the pin numbers.  I've double clicked on yellow number text and right clicked and nothing.

I've searched for videos on how to create parts in orcad 16.3 and I haven't found one that does it from scratch.  Is there some resources out there?

  • redwire

    Here's a simple how-to:

    1) Start Allegro (or Orcad PCB)

    2) File->New, Package Symbol (Wizard)

    3) Follow wizard questions

    4) Once wizard completes, you can add/delete pins as you desire

    4a) Add pins: Layout->Pins (or use icon).  Once in add pin, the options window lets you choose a padstack and pin type (connect or mechanical).

    You can set the pin number from here or edit it later (Edit->Text)

    4b) To delete pins: Delete, then choose pin from Find window, and click on pin.

    Once you are satisfied with your symbol you can File->Save which will create the .psm file.  This can be saved in a different path as well.  In order for Allegro (OrCAD PCB) to find the symbol, the psm file needs to be in the symbol path

    Post back if you have more questions.

  • steve
    There are many How to videos on youtube. Search for parsyseda channel. example Padstack creation https://www.youtube.com/watch?v=nqbZKkcvmOk, creating a footprint https://www.youtube.com/watch?v=wfCM0Ho8IE0 but there are many more.
  • Cmusgrove

    Thank you for the quick response.

    4a is where it doesn't work for me.  I click on Layout>Pins and the command area says that no padstack is selected.  I click around, with both the left and right click and nothing. 

    Also how do I change the pin number.  I double click on the text, pin,... and nothing.  I right click on it and still nothing that seems to let me change the pin number.

  • Cmusgrove

    This video seems to be for 16.5. I have 16.3 and it seems different. The video helped in that at the end I saw that some tabs open up on the right automatically.  I saw I did have those tabs but they didn't automatically open for me.  After I clicked to add a pad, I looked at them and it let me select a pad.  From what I can tell it automatically searches the working directory and the main lib directory for pad files that were created.

    I still don't know how to change the pin numbers though.

  • steve
    Try pinning the Options menu out then when you add a pin (Layout - Pins) you can choose a Pin #. If you need to change it then as redwire says use Edit - Edit and then pick the pin number text and edit to suit.
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