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AR# 32423

10.1 ChipScope Pro - NCF file for VIO core is missing constraints

Description

When I create the VIO core, the NCF is not created properly.  

 

When I create a VIO core using CORE Generator, the "vio.ncf" is generated, but is left blank; this causes timing violations in a design related to the VIO.

Solution

The problem is that the following constraint is missing: 

 # 

 # Clock constraints 

 # 

NET "CLK" TNM_NET = D_CLK ; 

 

To work around these issues, manually add the constraint.  

 

This issue is resolved in ChipScope Pro 11.1.

AR# 32423
Date Created 04/10/2009
Last Updated 05/23/2014
Status Archive
Type General Article