Instructions
If you want to download a bit file (.bit) to your FPGA without using ISE or EDK, you can use iMPACT directly from the command line.

1. To start, you should copy your bit file to a known folder (eg. “C:MyFolder”) and rename it to download.bit if it isn’t already called that.

2. Then you should create an iMPACT script file called download.cmd. The script file is just a text file that you can create with Wordpad and it must contain the following text:


setmode -bscan
setCable -p auto
identify

3. From Windows, select “Start->Run” and type cmd. Press “Enter” and you should have a command prompt.
4. Use the cd command to reach the folder where you have the bit file and iMPACT script (eg. “cd MyFolder”). In this example, you should now have the prompt: “C:MyFolder>”.
6. From the command line, type impact -batch download.cmd.