buzzer.vhd

来自「电子抢答器 系统复位后进行抢答．超前抢答显示犯规信号」· VHDL 代码 · 共 21 行

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

entity buzzer is port
	(	
	 	clk,en		:in std_logic;
	 	buzzerout		:out std_logic
	);
end buzzer;

architecture truthtable of buzzer is
begin
	process(clk)
	begin
		if(en='1')then
			buzzerout<=clk;
		end if;		
	end process;
end truthtable;