解决INCISIVE152仿真时遇到GND冲突的问题
如果遇到如图库冲突的问题，
ncelab: *E,MULVLG: Possible bindings for instance of design unit 'INV' in 'worklib.top:v' are: uni9000_ver.INV:module unisims_ver.INV:module
这时候可以把工程路径下的cds.lib中的
INCLUDE /usr/local/eda_tools/Cadence/INCISIVE152/tools.lnx86/inca/files/cds.lib DEFINE secureip /usr/local/eda_tools/xilinx_lib/ise_12_3_ncsim/secureip DEFINE unimacro /usr/local/eda_tools/xilinx_lib/ise_12_3_ncsim/unimacro DEFINE unisim /usr/local/eda_tools/xilinx_lib/ise_12_3_ncsim/unisim DEFINE unisims_ver /usr/local/eda_tools/xilinx_lib/ise_12_3_ncsim/unisims_ver DEFINE unimacro_ver /usr/local/eda_tools/xilinx_lib/ise_12_3_ncsim/unimacro_ver DEFINE simprim /usr/local/eda_tools/xilinx_lib/ise_12_3_ncsim/simprim DEFINE simprims_ver /usr/local/eda_tools/xilinx_lib/ise_12_3_ncsim/simprims_ver DEFINE xilinxcorelib /usr/local/eda_tools/xilinx_lib/ise_12_3_ncsim/xilinxcorelib DEFINE xilinxcorelib_ver /usr/local/eda_tools/xilinx_lib/ise_12_3_ncsim/xilinxcorelib_ver DEFINE uni9000_ver /usr/local/eda_tools/xilinx_lib/ise_12_3_ncsim/uni9000_ver DEFINE cpld /usr/local/eda_tools/xilinx_lib/ise_12_3_ncsim/cpld DEFINE cpld_ver /usr/local/eda_tools/xilinx_lib/ise_12_3_ncsim/cpld_ver
中
DEFINE uni9000_ver /usr/local/eda_tools/xilinx_lib/ise_12_3_ncsim/uni9000_ver
前面加上#注释掉，或者直接删除该行也可以。
因为我们可以从上面的截图里面看的，提示有重复的设计单元在两个库了，uni9000_ver是我们工程没用到的，故可以注释。
