-------------------------------------------------------------------------------
-- Title      : Bench for LED-Demo
-- Project    : EthMAC
-------------------------------------------------------------------------------
-- File       : bench/bench_led_demo.vhd
-- Author     : Mario Hüttel <mario.huettel@gmx.net>
-- Standard   : VHDL'93/02
-------------------------------------------------------------------------------
-- Description: Test bench for LED Demonstration for Ethernet RX + TX.
-------------------------------------------------------------------------------
-- Copyright (c) 2016
--
-- This file is part of EthMAC.
--
-- EthMAC is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, version 2 of the License.
--
-- This code is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this code.  If not, see <http://www.gnu.org/licenses/>.
--
-------------------------------------------------------------------------------
library ieee;
library design;
use design.all;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;

entity bench_led_demo is
end entity bench_led_demo;

architecture RTL of bench_led_demo is
	signal clk       : std_logic;
	signal data_out  : std_logic_vector(3 downto 0);
	signal rst_hw    : std_logic;
	signal rmii_tx   : std_logic_vector(1 downto 0);
	signal rmii_txen : std_logic;
	signal rmii_rx   : std_logic_vector(1 downto 0);
	signal rmii_rxen : std_logic;
	signal mdc       : std_logic_vector(1 downto 0);
	signal mdio      : std_logic_vector(1 downto 0);

begin
	clock_driver : process
		constant period : time := 20 ns;
	begin
		clk <= '0';
		wait for period / 2;
		clk <= '1';
		wait for period / 2;
	end process clock_driver;

	rmii_rx   <= rmii_tx;
	rmii_rxen <= rmii_txen;
	
	rstegen : process is
	begin
		rst_hw <= '0';
		wait for 5 ns;
		rst_hw <= '1';
		wait;
	end process rstegen;
	

	leddemo_inst : entity design.leddemo
		port map(
			clk_tx    => clk,
			clk_rx    => clk,
			data_in   => "1010",
			data_out  => data_out,
			rst_hw    => rst_hw,
			rmii_tx   => rmii_tx,
			rmii_txen => rmii_txen,
			rmii_rx   => rmii_rx,
			rmii_rxen => rmii_rxen,
			mdc       => mdc,
			mdio      => mdio
		);

end architecture RTL;