process(Clk,Rst_n)

　　begin

　　if (Rst_n = '0') then --異步復(fù)位

　　Sm_db_out <= "0000000";

　　elsif (Clk'event AND Clk = '1') then --時(shí)鐘上升沿

　　case num is

　　when x"0" => Sm_db_out <= "0111111"; --顯示“0”

　　when x"1" => Sm_db_out <= "0000110"; --顯示“1”

　　when x"2" => Sm_db_out <= "1011011"; --顯示“2”

　　when x"3" => Sm_db_out <= "1001111"; --顯示“3”

　　when x"4" => Sm_db_out <= "1100110"; --顯示“4”

　　when x"5" => Sm_db_out <= "1101101"; --顯示“5”

　　when x"6" => Sm_db_out <= "1111101"; --顯示“6”

　　when x"7" => Sm_db_out <= "0000111"; --顯示“7”

　　when x"8" => Sm_db_out <= "1111111"; --顯示“8”

　　when x"9" => Sm_db_out <= "1101111"; --顯示“9”

　　when x"a" => Sm_db_out <= "1110111"; --顯示“A”

　　when x"b" => Sm_db_out <= "1111100"; --顯示“B”

　　when x"c" => Sm_db_out <= "0111001"; --顯示“C”

　　when x"d" => Sm_db_out <= "1011110"; --顯示“D”

　　when x"e" => Sm_db_out <= "1111001"; --顯示“E”

　　when x"f" => Sm_db_out <= "1110001"; --顯示“F”

　　when others => Sm_db_out <= "0000000";

　　end case;

　　end if;

　　end process;

　　--位選有效

　　Sm_cs_n_out <= "00";

　　end architecture SEG_DISPLAY;