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AR# 16161

5.1i sp2 MAP, LogiCORE CORDIC v1.1 - "ERROR:Place - Structured logic associated with an F6 configuration could not be placed..."

Description

Keyword: CORE Generator, Error, Place 

 

MAP reports the following error message: 

 

"ERROR:Place - Structured logic associated with an F6 configuration could not be placed due to a placement constraint. This logic requires a very specific relative placement. The relative placement required by the logic was impossible to resolve."

Solution

This problem is due to a rare placement error that occurs in CORDIC v1.1 cores. If this error is reported, you can work around the issue by turning off the Relatively Placed Macro (RPM) on the core and regenerating the core. 

 

This error is fixed in CORDIC v2.0. 

 

Please see (Xilinx Answer 29570) for a detailed list of LogiCORE CORDIC Release Notes and Known Issues.

AR# 16161
Date Created 09/03/2007
Last Updated 05/15/2014
Status Archive
Type General Article