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AR# 46159

14.2 XST - "ERROR:Xst:2647 - Failed to run core generator for macro"


In designs containing TeMAC cores,the following error occurs during synthesis:

ERROR:Xst:2647 - Failed to run core generator for <hard_ethernet_mac_wrapper_fifo_generator_v4_3_1> macro.
ERROR:EDK - xst: unknown error occurred.
ERROR:EDK:546 - Aborting XST flow execution!

How can I fix this?


You can try the following:

  • Ensure that the Xilinx ISE and EDK environment variables are set correctly.
  • Decrease the path length of the project as there are some issues with XST and path lengths that exceed 256 characters.
  • Make sure that the path does not contain spaces or unusual characters.
  • Ensure that the CORE Generator tool has sufficient virtual memory (Launch CORE Generator, File -> Preferences; under the Java tab, increase the memory here).
  • Make sure that the regional settings on your machine are set to English (US).
  • Ensure that any Virus scanners on the system are disabled.
AR# 46159
Date Created 02/03/2012
Last Updated 02/20/2013
Status Active
Type Error Message
  • EDK - 13.4
  • EDK - 14.2
  • EDK - 14.1
  • FIFO Generator