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Capture Symbol Property Configuartion

Matt Luckhardt

Is there a method to prevent someone from editing a symbol property in capture which is driven from the CIS library?  Currently there are some properties which are non-editable but you can always overwrite them at the instance level. 

Also is there a way for have a default property added to all symbols which are placed on schematic without it existing in the library?  We would like the property to be available to be filled in on the symbol but not driven from the library.  I know you can manually add the property to the part but this is error prone and requires the exact property name on each part and each schematic if we intend to use the property down stream in the PCB or 3rd party tools.

  • rads
    in reply to Matt Luckhardt

    Hi Matt,

    You mentioned that you are placing part from CIS, that means you are using some database, am I right?

    If yes, then you can create a column with header Max_Power_Dissipation in your database.You will see this property in options->CIS Configuration->setup after configuring the database with CIS,transfer it to design and you may see this property on all the parts you are placing from database.

  • Matt Luckhardt
    in reply to rads

    Hi Rads,

    Yes this is correct and this was going to be my fall back plan.  I would prefer to not have to enter blank fields into CIS if not required as I can see us adding extra properties similar to this which would also need to be blank.  If this is the only way then we will have to do that.

  • mjmessinger
    in reply to Matt Luckhardt

    The problem with adding blank fields to the CIS database will be that every time you refresh the link to the database in the schematic you will blank those fields again. The only other option that I know about would be to add the field to all of your parts in the symbol libraries. This would add the field to each part in your schematic that you could then go and fill with your desired value. This will really make a bigger difference for resistors and caps and the like (assuming you are using common symbols for them).

  • Matt Luckhardt
    in reply to mjmessinger

    That's a good point about the blank fields in CIS.  However going back and adding the blank property to all symbols one by one is likely not going to happen either.  Is there a bulk way of editing all the symbols in an .olb? 

  • Akulin
    in reply to Matt Luckhardt

    You can do it using TCL code.

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