PROM file from the bitstream file (XILINX Flash .mcs example)

In order to generate a .mcs PROM file from the bitstream file download.bit, start Xilinx iMPACT. The following example shows the case of Xilinx iMPACT 11.3 (for other version the procedure doesn't change):

	Select *file / new project. Choose create a new project*. Press OK.
	Select *prepare a PROM file*. Press OK.

New iMPACT Project

Select step 1. storage target / Xilinx Flash/PROM of the left panel and press the left green arrow.

PROM File Formatter Step1

Select step 2. add storage device(s) / auto select PROM of the middle panel and press the right green arrow.
In step 3. enter data of the right panel

PROM File Formatter Step 3

Type fpga (or another name) in the "Output File Name" input field
Using OpenFut or OpenFutNet, there is no longer any restriction in the name of output file: any name for the output file name input field is allowed.
With the old 2^nd generation program FWU any other name than fpga for the output file name input field is not allowed.
Choose a suitable path for the "Output File Location" input field;
Select mcs from the drop-down menu file format in the flash/PROM file property sub-panel;

Prom File Formatter Step 3, MCS selection

Press the OK button in the bottom left corner of the current window.

	Just acknowledge the pup-up message.
	Browse to the ./implementation/ folder of your "." project folder and select the bitstream file download.bit. Press the *open* button in the bottom left corner of the current window.
	Your design likely consist of just one device file. So deny the request by pressing the NO button.
	Just acknowledge the pup-up message.