Why does my Virtex-5 Distributed RAM/ROM based Constant Coefficient Multiplier (CCM) give incorrect output results in post-MAP simulation, post-PAR simulation, and hardware?
You can work around the issue by setting the following environment variable:
XIL_MAP_DONT_CHANGE_RAM_ADDR = 1
For information on setting environment variables, see (Xilinx Answer 11630).
This problem has been fixed in the latest 8.2i Service Pack available at:
The first service pack containing the fix is 8.2i Service Pack 2.