I like to use a Xilinx written macro (edn) in my
design using ISE 6.3.
I seems ISE does not accept edn file. I could not find any
documentation on using edn netlist for ISE. It follows the macro is
little old and older foundation had provision where edn elements could
be instantiated. However, I like to do this for ISE. The edn is
synthesized and optimized netlist. Where in ISE design flow I can have
this netlist recognized and interfaced with existing hdl or netlist
files?

Thanks,

Yaseen Zaidi wrote:
> I like to use a Xilinx written macro (edn) in my design using ISE 6.3.
> I seems ISE does not accept edn file. I could not find any
> documentation on using edn netlist for ISE. It follows the macro is
> little old and older foundation had provision where edn elements could
> be instantiated. However, I like to do this for ISE. The edn is
> synthesized and optimized netlist. Where in ISE design flow I can have
> this netlist recognized and interfaced with existing hdl or netlist
> files?
> 

If you put the edn files into your project directory (the one with the 
*.npl file), then ISE will find them. They show up as "?" in the sources 
window, just the same as unisim primitives, but they will be found and 
included during translate.

If you want to put the edn files in a different location, then in the 
Translate properties dialog, add the path to the edn files in the "Macro 
Search Path" entry.