and2.vhd

采用VHDL语言设计了一个打铃系统。该系统已经调试

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;

entity and2 is
    Port ( a : in std_logic;
           b : in std_logic;
           c : out std_logic);
end and2;

architecture Behavioral of and2 is

begin
   c<=a and b;
end Behavioral;