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Synthesis and Simulation Design Guide
Chapter 3: Understanding High-Density Design Flow

Creating a PROM File for Stand-Alone Operation

After verifying that the FPGA works in the circuit, you can create a PROM file from the .bit file to program a PROM or other data storage device. You can then use this file to program the FPGA in-circuit during normal operation.

Use the Prom File Formatter to create the PROM file, or from the command line use PROMGen. You can run the Prom File Formatter from the Design Manager, or from the command line as follows.

promfmtr design.bit

Run PROMGen from the command line by typing the following.

promgen [options] design.bit

Note: For more information on using these programs, refer to the Xilinx Development System Reference Guide.