8.1i XST- "ERROR:Xst:71 - Redeclaration of an instance : <instance_name>"
Description
Keywords: hierarchical, defparam, 7.1i
When my Verilog design has multiple hierarchical defparams, the following error occurs during the second synthesis run:
"ERROR:Xst:71 - Redeclaration of an instance : <instance_name>"
Solution
This problem has been fixed in the latest 8.2i Service Pack available at:http://www.xilinx.com/xlnx/xil_sw_updates_home.jsp
The first service pack containing the fix is 8.2i Service Pack 1.