FPGA Editor Files

The following files are used with the FPGA Editor. See the “FPGA Editor Files” appendix for more information on FPGA Editor files.

NCD File

The NCD file is the output file from the MAP program and represents the physical design. This file describes your design in terms of CLBs and IOBs. You can edit your design in the FPGA Editor, save it, and then route your design with PAR.

PCF File

The PCF file is an ASCII file containing physical constraints created by the MAP program, as well as physical constraints entered by you. You can edit the PCF file in the FPGA Editor.