ask_m.vhd

用DE2板子实现的正选信号发生器,需安装quartus2软件,硬件需要DE2的开发板

library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;
use ieee.std_logic_arith.all;

entity ask_m is
port(q:in std_logic;
     ask_in:in std_logic_vector(7 downto 0);
     ask_out:out std_logic_vector(7 downto 0));
end ask_m;

architecture behav of ask_m is
begin
process(q)
begin
    if(q='1')then
        ask_out<=ask_in;
    else
 		ask_out<="00000000";
	end if;
   end process;

end behav;