echo -n " -ifmt mixed" >> build/fpga/main.xst
echo -n " -ofn main" >> build/fpga/main.xst
echo -n " -ofmt NGC" >> build/fpga/main.xst
- echo -n " -p xc4vfx60-11ff1152" >> build/fpga/main.xst
+ echo -n " -p ${device}" >> build/fpga/main.xst
echo -n " -top main" >> build/fpga/main.xst
echo -n " -opt_mode area" >> build/fpga/main.xst
echo -n " -opt_level 2" >> build/fpga/main.xst