keytestbench.vhd

来自「用于视频运动图像编码的HUFFMAN编码」· VHDL 代码 · 共 62 行

---------      电子系                 学号：J02301                姓名：张宗旺----

library ieee;
use ieee.std_logic_1164.all;


entity KEY_BENCH is
end KEY_BENCH;


architecture BENCH of KEY_BENCH is
	--declaration of component--
	
	component KEY_TEST
		port(	KEY_IN: in std_logic;
			CLK: in std_logic;
			TEST_OUT: out std_logic;
			RST:in std_logic	);
	end component;

	--declaration of signals--
	
	signal KEY_IN,RST,TEST_OUT:std_logic;
	signal CLK:std_logic:='1';

begin 
	--instantiat DUT component--
	DUT1: entity work.KEY_TEST(ALG) port map(KEY_IN,CLK,TEST_OUT,RST); 
	
	--stimulus--
	
	RST<='0' after 10 ns,'1' after 100 ns;	
	
	CLK<=not(CLK) after 50 ns;	
		
	
	
	KEY_PROCESS: 	process
			begin 
				KEY_IN<='0';
				wait for 100 ns;
				KEY_IN<='1';
				wait for 100 ns;
				KEY_IN<='0';
				wait for 500 ns;
				KEY_IN<='1';
				wait for 1100 ns;
				KEY_IN<='0';
				wait for 1000 ns;
				KEY_IN<='1';
				wait for 1000 ns;
				KEY_IN<='0';
				wait for 5000 ns;
				KEY_IN<='0';
				wait for 100 ns;
			end process;
end BENCH;