?? disp_dec.vhd
字號:
--------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 16:07:18 01/02/06
-- Design Name:
-- Module Name: dip_dec - Behavioral
-- Project Name:
-- Target Device:
-- Tool versions:
-- Description:
--
-- Dependencies:
--
-- Revision:
-- Revision 0.01 - File Created
-- Additional Comments:
--
--------------------------------------------------------------------------------
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;
---- Uncomment the following library declaration if instantiating
---- any Xilinx primitives in this code.
--library UNISIM;
--use UNISIM.VComponents.all;
entity disp_dec is
port (
disp_dec_in : in std_logic_vector(3 downto 0);
disp_dec_out : out std_logic_vector(6 downto 0)
);
end disp_dec;
architecture disp_dec_behave of disp_dec is
begin
process (disp_dec_in)
begin
case disp_dec_in is
when "0000" =>
disp_dec_out <= "1000000";
when "0001" =>
disp_dec_out <= "1111001";
when "0010" =>
disp_dec_out <= "0100100";
when "0011" =>
disp_dec_out <= "0110000";
when "0100" =>
disp_dec_out <= "0011001";
when "0101" =>
disp_dec_out <= "0010010";
when "0110" =>
disp_dec_out <= "0000010";
when "0111" =>
disp_dec_out <= "1111000";
when "1000" =>
disp_dec_out <= "0000000";
when "1001" =>
disp_dec_out <= "0010000";
when "1010" =>
disp_dec_out <= "0001000";
when "1011" =>
disp_dec_out <= "0000011";
when "1100" =>
disp_dec_out <= "1000110";
when "1101" =>
disp_dec_out <= "0100001";
when "1110" =>
disp_dec_out <= "0000110";
when "1111" =>
disp_dec_out <= "0001110";
when others =>
disp_dec_out <= "1111111";
end case;
end process;
end disp_dec_behave;
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