cdkzq.vhd

来自「彩灯显示控制,五个花样,可独立也可循环显示」· VHDL 代码 · 共 28 行

-- 整个电路系统的VHDL源程序
--CDKZQ.VHD
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
ENTITY CDKZQ IS
  PORT(CLK_IN:IN STD_LOGIC;
        CLR:IN STD_LOGIC;
        CHOSE_KEY:IN STD_LOGIC_VECTOR(1 DOWNTO 0);
        LED:OUT STD_LOGIC_VECTOR(27 DOWNTO 0));
END ENTITY CDKZQ;
ARCHITECTURE ART OF CDKZQ IS
  COMPONENT SXKZ IS
    PORT(CHOSE_KEY:IN STD_LOGIC_VECTOR(1 DOWNTO 0);
          CLK_IN:IN STD_LOGIC;
          CLR:IN STD_LOGIC;
          CLK:OUT STD_LOGIC);
  END COMPONENT SXKZ;
  COMPONENT XSKZ IS
    PORT(CLK:IN STD_LOGIC;
          CLR:IN STD_LOGIC;
LED:OUT STD_LOGIC_VECTOR(27 DOWNTO 0));
  END COMPONENT XSKZ;
  SIGNAL S1:STD_LOGIC;
  BEGIN
   U1:SXKZ PORT MAP(CHOSE_KEY,CLK_IN,CLR,S1);
   U2:XSKZ PORT MAP(S1,CLR,LED);
END ARCHITECTURE ART;