How to create a bit stream for an FPGA that does nothing
Suppose you desire one of the 4003Es on the BORG board
to do nothing. You'll need a bitstream for each of the four
FPGAs on the Borg board so you need to load the ones you aren't using
with an ``empty'' bitstream.
- Invoke FPGA design editor
fpga_editor.exe
choose File->new to Create design file empty.ncd for an Xilinx 4003E chip.
pick the correct part type: XC4000E family device XC4003E with package PC84
save the file
bitgen empty.ncd
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Copyright 2002; Department of Computer Engineering,
University of California, Santa Cruz.