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AR# 32455

11.1 Constraints Editor Known Issue - When I attempt to select my input clock in Constraints Editor, all I see is the clock that comes out of my ISERDES

Description

When I attempt to select my input clock in Constraints Editor, all I see is the clock that comes out of my ISERDES.  

 

Why am I unable to see my input clock in the clock list?

解决方案

The Constraints Editor is not tracing back to the input clock and is only referencing the clock that comes out of the ISERDES component.  

 

This issue should be fixed in the next major release. 

 

To work around this issue, manually add the constraints to the UCF.

AR# 32455
创建日期 04/10/2009
Last Updated 05/23/2014
状态 Archive
Type 已知问题