display.vhd

整点闹钟

library ieee;
use ieee.std_logic_1164.all;
entity DISPLAY is
   port(d:in std_logic_vector(3 downto 0);
        q:out std_logic_vector(6 downto 0));
end DISPLAY;
architecture disp_are of DISPLAY is
begin
     process(d)
       begin

case d is
    when"0000" =>q<="0111111";
    when"0001" =>q<="0000110";
    when"0010" =>q<="1011011";
    when"0011" =>q<="1001111";
    when"0100" =>q<="1100110";
    when"0101" =>q<="1101101";
    when"0110" =>q<="1111101";
    when"0111" =>q<="0100111";
    when"1000" =>q<="1111111";
    when others =>q<="1101111";
end case;
  end process;
end disp_are;