Issue Description 

My design includes several constraints I want to delete. How can I delete the constraints?    


Suggested Solutions 

There are two ways you can delete a Capture constraint1) the Copy Method or 2) the EDIF MethodBoth of these procedures are described below. Please review each procedure before you select the one most appropriate for your situation.      


Copy Method for Removing a Design Constraint 

To remove a constraint, complete the following steps: 

  • 1. Open the Capture desired design. 
     

  1. 2. Create a new design. 
     

  1. 3.  Arrange your Capture screen so that you are viewing the File Hierarchy/Project Manager of both designs. 
     

  1. 4. Copy the folders and pages from the original design to the new design. 

This method is a fast and easy way to delete unwanted constraints. However, if your original design has Occurrence Properties, you will lose occurrence properties when you follow this procedure. 

EDIF Method for Removing a Design Constraint 

EDIF (Electronic Design Interchange Format) is a vendor-neutral format you can use to remove unwanted constraints. Although this procedure involves more steps and is slightly more complicated, the occurrence properties included in the original design remain intact and are not stripped when you follow this procedure.    
 
To remove constraints using EDIF, complete the following steps: 


  1. 1. Open the desired Capture design. 
     

  1. 2. Highlight the *.DSN line in the File Hierarchy/Project Manager. 
     
     
     

  1. 3. Select the menu items: File > Export > EDIF. Your selection opens the Export Design dialog 
     

  1. 4. Enter a name for your exported design. By default the exported EDIF design will be saved in the same directory as the original design file.  
     
    Be sure to note the export design name so you are able to easily reference it later in step 6. By default, the exported EDF design is saved in the same directory location as your Capture design.  
     
     
     

  1. 5. Click the Configuration file Browse button and navigate to CAP2EDI.CFG 
     
    The default paths of the CAP2EDI.DFG file for Capture versions 16.6, 17.2 and 17.4 are:     

Capture 16.6 default path: C:\Cadence\spb_16.6\tools\capture 

Capture 17.2, default path: C:\Cadence\spb_17.2\tools\capture 

Capture 17.4, default path: C:\Cadence\spb_17.4\tools\capture 
 
 
 

6. Click the OK button to save the exported EDIF file and close the dialog.  
 

7. Select the menu items: File > Import > EDIFYour selection opens the Import Design dialog.  
 
 
 

  1. 8. Click the Browse button of the Open input field and navigate to the configuration file you saved in step 5. 

 

  1. 9. Click the Browse button of the Save As input field and navigate to the folder where you want to save the translated EDIF file.  

 

  1. 10. Verify the path identified in the Configuration file field, is the correct path to the CAP2EDI.DFG file for the version of Capture you are using.  

 

The default paths of the CAP2EDI.DFG filefor Capture versions 16.6, 17.2 and 17.4 are:     

  1. Capture 16.6 default path: C:\Cadence\spb_16.6\tools\capture 

  1. Capture 17.2, default path: C:\Cadence\spb_17.2\tools\capture 

  1. Capture 17.4, default path: C:\Cadence\spb_17.4\tools\capture 

 

11Select OK to complete the procedure.