This is the company I used Xilnx the sparten3 FPGA development board. use integrated development environment ISE design of a Bomadeng procedures, it is like a small neon lights. For your reference.

hourse_race_light(7seg)
.......................\clk_div.vhd
.......................\ctrl.vhd
.......................\display.vhd
.......................\key_scan.vhd
.......................\top_7seg.bit
.......................\Top_7seg.vhd

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