display.vhd

不同于网上的四层电梯

LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;

ENTITY display IS
  PORT(	clk: IN STD_LOGIC;--时钟信号
		light: in integer range 1 to 6;--电梯的位置
		segout: OUT STD_LOGIC_VECTOR(6 downto 0));--数码管显示
end;

ARCHITECTURE behave OF  display IS
	signal dp:std_logic_vector(6 downto 0);
begin
	process(clk)
	begin
		if(clk'event and clk='1')then
			case light is
				when 1 =>
					dp<="0000110";--显示1
				when 2 =>
					dp<="1011011";--显示2
				when 3 =>
					dp<="1001111";--显示3
				when 4 =>
					dp<="0110011";--显示4
				when 5 =>
					dp<="1011011";--显示5
				when 6 =>
					dp<="1011111";--显示6
				when others =>
					dp<="0000000";
			end case;
		end if;
	end process;
	segout<=dp;
end;