Subversion Repositories tcp_ip_core_w_dhcp

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-- Company: 

-- Engineer:

--

-- Create Date:   23:38:05 12/08/2014

-- Design Name:   

-- Module Name:   /home/craig/Documents/CW/Git_Repos/hw_client/TB_led_mod.vhd

-- Project Name:  hw_client

-- Target Device:  

-- Tool versions:  

-- Description:   

-- 

-- VHDL Test Bench Created by ISE for module: led_mod

-- 

-- 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_led_mod IS

END TB_led_mod;

ARCHITECTURE behavior OF TB_led_mod IS

    -- Component Declaration for the Unit Under Test (UUT)

    COMPONENT led_mod

    PORT(

         CLK_IN : IN  std_logic;

         LED_STATE_IN : IN  std_logic_vector(2 downto 0);

         ERROR_CODE_IN : IN  std_logic_vector(4 downto 0);

         ERROR_CODE_EN_IN : IN  std_logic;

         LEDS_OUT : OUT  std_logic_vector(1 downto 0)

        );

    END COMPONENT;

   --Inputs

   signal CLK_IN : std_logic := '0';

   signal LED_STATE_IN : std_logic_vector(2 downto 0) := (others => '0');

   signal ERROR_CODE_IN : std_logic_vector(4 downto 0) := (others => '0');

   signal ERROR_CODE_EN_IN : std_logic := '0';

        --Outputs

   signal LEDS_OUT : std_logic_vector(1 downto 0);

   -- Clock period definitions

   constant CLK_IN_period : time := 10 ns;

BEGIN

        -- Instantiate the Unit Under Test (UUT)

   uut: led_mod PORT MAP (

          CLK_IN => CLK_IN,

          LED_STATE_IN => LED_STATE_IN,

          ERROR_CODE_IN => ERROR_CODE_IN,

          ERROR_CODE_EN_IN => ERROR_CODE_EN_IN,

          LEDS_OUT => LEDS_OUT

        );

   -- Clock process definitions

   CLK_IN_process :process

   begin

                CLK_IN <= '0';

                wait for CLK_IN_period/2;

                CLK_IN <= '1';

                wait for CLK_IN_period/2;

   end process;

   -- Stimulus process

   stim_proc: process

   begin

      -- hold reset state for 100 ns.

      wait for 100 ns;

      wait for CLK_IN_period*10;

                ERROR_CODE_EN_IN <= '0';

                wait for CLK_IN_period;

                ERROR_CODE_IN <= "01101";

                ERROR_CODE_EN_IN <= '1';

                wait for CLK_IN_period;

                ERROR_CODE_EN_IN <= '0';

                wait for CLK_IN_period*10;

                LED_STATE_IN <= "111";

      wait;

   end process;

END;