tb_debouncer.vhd

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-- Company: 
-- Engineer:
--
-- Create Date:   15:26:20 11/10/2016
-- Design Name:   
-- Module Name:   D:/school/elektronica 1/VHDLclock/vhdl-clock/tb_debouncer.vhd
-- Project Name:  clock
-- Target Device:  
-- Tool versions:  
-- Description:   
-- 
-- VHDL Test Bench Created by ISE for module: debouncer
-- 
-- Dependencies:
-- 
-- Revision:
-- Revision 0.01 - File Created
-- Additional Comments:
--
-- Notes: 
-- This testbench has been automatically generated using types std_logic and
-- std_logic_vector for the ports of the unit under test.  Xilinx recommends
-- that these types always be used for the top-level I/O of a design in order
-- to guarantee that the testbench will bind correctly to the post-implementation 
-- simulation model.
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LIBRARY ieee;
USE ieee.std_logic_1164.ALL;
 
-- Uncomment the following library declaration if using
-- arithmetic functions with Signed or Unsigned values
--USE ieee.numeric_std.ALL;
 
ENTITY tb_debouncer IS
END tb_debouncer;
 
ARCHITECTURE behavior OF tb_debouncer IS 
 
    -- Component Declaration for the Unit Under Test (UUT)
 
    COMPONENT debouncer
    PORT(
         inp : IN  std_logic;
         sysclk : IN  std_logic;
			debclk : IN std_logic;
         op : OUT  std_logic
        );
    END COMPONENT;
	 
	 COMPONENT timer
	 generic (div : integer := 2000000);
    PORT(
         clk : IN  std_logic;
         pulse : OUT  std_logic
        );
    END COMPONENT;
    
    

   --Inputs
   signal inp : std_logic := '0';
   signal sysclk : std_logic := '0';
	
	signal pulse : std_logic;


 	--Outputs
   signal op : std_logic;

   -- Clock period definitions
   constant sysclk_period : time := 10 ns;
   
 
BEGIN

	timer_1s: timer 
	GENERIC MAP	(div=> 2)
	PORT MAP (
          clk => sysclk,
          pulse => pulse
        );
 
	-- Instantiate the Unit Under Test (UUT)
   uut: debouncer PORT MAP (
          inp => inp,
          sysclk => sysclk,
          debclk => pulse,
          op => op
        );

   -- Clock process definitions
   sysclk_process :process
   begin
		sysclk <= '0';
		wait for sysclk_period/2;
		sysclk <= '1';
		wait for sysclk_period/2;
   end process;
 

 

   -- Stimulus process
   stim_proc: process
   begin		
      -- hold reset state for 100 ns.
		
		
		inp <= '0';
      wait for 1 ns;	
		inp <= '1';	
      wait for 1 ns;	
		inp <= '0';
      wait for 2 ns;	
		inp <= '1';
      wait for 1 ns;	
		inp <= '0';
      wait for 2 ns;	
		inp <= '1';
      wait for 2 ns;	
		inp <= '0';		
      wait for 1 ns;	
		inp <= '1';
      wait for 1 ns;	
		inp <= '0';
      wait for 1 ns;	
		
		inp <= '1';
      wait for 1000 ns;	
		
		inp <= '0';
      wait for 1 ns;	
		inp <= '1';	
      wait for 1 ns;	
		inp <= '0';
      wait for 2 ns;	
		inp <= '1';
      wait for 1 ns;	
		inp <= '0';
      wait for 2 ns;	
		inp <= '1';
      wait for 2 ns;	
		inp <= '0';		
      wait for 1 ns;	
		inp <= '1';
      wait for 1 ns;	
		inp <= '0';
      wait for 1 ns;	
		inp <= '0';
      wait for 2 ns;	

      wait for sysclk_period*10;

      -- insert stimulus here 

      wait;
   end process;

END;