speaker.vhd

该程序是用VHDL语言实现的扬声器程序

library ieee;
use ieee.std_logic_1164.all;

entity speaker is
port(	botton	:	in	std_logic;
		speaker	:	out	std_logic	);
end speaker;

architecture func1 of speaker is
begin
	speaker <= not botton;	
end func1;