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Development System Reference Guide www.xilinx.com 379
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Appendix B
EDIF2NGD, and NGDBuild
This appendix describes the netlist reader program, EDIF2NGD, and how this program
interacts with NGDBuild. The appendix contains the following sections:
• “EDIF2NGD”
• “NGDBuild”
• “Netlist Launcher (Netlister)”
• “NGDBuild File Names and Locations”
EDIF2NGD
This program is compatible with the following families:
• Virtex
™
, Virtex
™
-E
• Virtex
™
-II
• Virtex
™
-II Pro, Virtex
™
-II Pro X
• Virtex
™
-4
• Virtex
™
-5 LX
• Spartan
™
-II, Spartan
™
-IIE
• Spartan
™
-3, Spartan
™
-3E, Spartan
™
-3L
• CoolRunner
™
XPLA3, CoolRunner
™
-II
• XC9500
™
, XC9500XL
™
, XC9500XV
™
The EDIF2NGD program allows you to read an EDIF (Electronic Design Interchange
Format) 2 0 0 file into the Xilinx development system toolset. EDIF2NGD converts an
industry-standard EDIF netlist to an NGO file—a Xilinx-specific format. The EDIF file
includes the hierarchy of the input schematic. The output NGO file is a binary database
describing the design in terms of the components and hierarchy specified in the input
design file. After you convert the EDIF file to an NGO file, you run NGDBuild to create an
NGD file, which expands the design to include a description reduced to Xilinx primitives.