How to create an EDIF file from ISE Foundation?

wrote

Hi, synthesize your design with xst and then use ngc2edif.exe from command line to translate the *.ngc netlist to EDIF format.

Another option is to run the 'translate' (ngdbuild) step after synthesis and then use ngd2edif.exe from command line.

/Michael

ngc2edif.exe is for simulation only and is the same as the xst edifngc paramter. ISE 4 was the last version to include the ability to compile to EDIF. The good thing is that you don't need it. Do this: put the ngc file in the same directory you're running NGDBuild on your EDIF file. Include in your EDIF file the cell interface declaration only. (You can cut this from the file ngc2edif generated.) If you have an EDIF cell interface declaration that is not a primitive, Xilinx will look for a file of the same name in a compiled format in the current directory and automatically merge that in.

line

and

Thanks Michael, it works fine. The generated file was a NDF, so I renamed it to EDF and use it as a black box in other designs.

Any advices about parameters? May I use the black box with parameters or I must generate an EDF for each combination of them?

Regards, Santiago.