We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 33727

ISE Simulator (ISim) - "ERROR:HDLCompiler:1044 - "Unknown" Line 0: /data/Xilinx/11.1/ISE/verilog/hdp/lin64/xip/ ..."


Keywords: HDLCompiler:1044, HDLCompiler:559, GT11, Virtex-4 HardIP, SecureIP

I am using ISE Simulator 11 Update 3 (11.3) to simulate a design that instantiates Virtex-4 FPGA GT (GT11) primitives. However, simulation fails during compilation with the following errors:

"ERROR:HDLCompiler:1044 - "Unknown" Line 0: /data/Xilinx/11.1/ISE/verilog/hdp/lin64/xip/gt11_ver/
@g@t11_@s@w@i@f@t.sdb was created using an incompatible version_number, backward compatibility is not supported yet."
"ERROR:HDLCompiler:559 - "/build/xfndry10/L.57/rtf/verilog/src/unisims/GT11.v" Line 2436: Could not find module/primitive <GT11_SWIFT>."

How can I resolve this issue?


This is a known issue with ISim in ISE Design Suite 11.3 tools and has been fixed in ISE Design Suite 11 Update 4 (11.4).

Please download and install the latest ISE Design Suite update from the Download Center at: http://www.xilinx.com/support/download/index.htm
AR# 33727
Date Created 10/29/2009
Last Updated 11/16/2009
Status Active
Type General Article