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AR# 24012

LogiCORE FIFO Generator v3.1 - VHDL behavioral simulation fails with: Failure: FAILURE: Use of behavioral models for Virtex-4 and Virtex-5 built-in FIFO configurations is currently not supported.

Description

When running VHDL behavioral simulation using Fifo Generator v3.1 model, following error is seen:

Failure: FAILURE: Use of behavioral models for Virtex-4 and Virtex-5 built-in FIFO configurations is currently not supported. Please use the structural simulation model. You can enable this from CORE Generator by selecting Project -> Project Options -> Generation tab -> Structural Simulation. See the FIFO Generator User Guide for more information.

Solution

This failure is seen even for Dist Mem and Block Mem type, and even for Virtex-2 designs.

This problem has been fixed for Fifo Generator v3.2 release available with ISE IP Update #2 available at end of October 2006.

In the mean time, please use Structural simulation model which can be generated by Core Generator.

You can enable this from CORE Generator by selecting Project -> Project Options -> Generation tab -> Structural Simulation. See the FIFO Generator User Guide for more information.

AR# 24012
Date Created 09/04/2007
Last Updated 12/15/2012
Status Active
Type General Article