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stvhawes |
--////////////////////////////////////////////////////////////////////
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--// ////
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--// hitter_sim.vhd ////
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--// ////
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--// This file is part of the open_hitter opencores effort. ////
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--// <http://www.opencores.org/cores/open_hitter/> ////
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--// ////
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--// Module Description: ////
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--// Synthesizable simulation class for the class 'hitter' ////
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--// * translates button actions/results onto NSEW buttons ////
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--// and NSEW LEDs ////
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--// * target env: Xilinx Virtex 6 / ML605 ////
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--// ////
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--// To Do: ////
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--// #LOTS ////
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--// ////
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--// Author(s): ////
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--// - Stephen Hawes ////
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--// ////
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--////////////////////////////////////////////////////////////////////
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--// ////
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--// Copyright (C) 2015 Stephen Hawes and OPENCORES.ORG ////
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--// ////
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--// This source file may be used and distributed without ////
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--// restriction provided that this copyright statement is not ////
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--// removed from the file and that any derivative work contains ////
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--// the original copyright notice and the associated disclaimer. ////
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--// ////
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--// This source file is free software; you can redistribute it ////
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--// and/or modify it under the terms of the GNU Lesser General ////
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--// Public License as published by the Free Software Foundation; ////
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--// either version 2.1 of the License, or (at your option) any ////
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--// later version. ////
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--// ////
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--// This source is distributed in the hope that it will be ////
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--// useful, but WITHOUT ANY WARRANTY; without even the implied ////
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--// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
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--// PURPOSE. See the GNU Lesser General Public License for more ////
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--// details. ////
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--// ////
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--// You should have received a copy of the GNU Lesser General ////
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--// Public License along with this source; if not, download it ////
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--// from <http://www.opencores.org/lgpl.shtml> ////
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--// ////
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--////////////////////////////////////////////////////////////////////
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--//
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--// \$Id\$ TAKE OUT THE \'s and this comment in order to get this to work
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--//
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--// CVS Revision History
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--//
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--// \$Log\$ TAKE OUT THE \'s and this comment in order to get this to work
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--//
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library ieee;
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use ieee.std_logic_1164.all;
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entity hitter_sim is
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port (
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RX_CLK: in std_logic;
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PUSH_BUTTONS_5BITS_TRI_I: in std_logic_vector(4 downto 0);
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LEDS_POSITIONS_TRI_O: out std_logic_vector(4 downto 0)
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);
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end hitter_sim;
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architecture implementation of hitter_sim is
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component parse_price_sim
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port (
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RX_CLK: in std_logic;
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restart: in std_logic;
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processing: out std_logic;
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result_is_ok: out std_logic
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);
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end component;
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for parse_price_sim_0: parse_price_sim use entity work.parse_price_sim;
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--signal RX_CLK: std_logic;
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signal restart: std_logic;
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signal processing: std_logic;
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signal result_is_ok: std_logic;
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--
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signal alight: std_logic := '0';
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signal pos: integer := 0;
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begin
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parse_price_sim_0: parse_price_sim port map (
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RX_CLK => RX_CLK,
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restart => restart,
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processing => processing,
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result_is_ok => result_is_ok
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);
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--
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flasher: process (RX_CLK) is
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begin
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if rising_edge(RX_CLK) then
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if (pos < 4) then -- ghdl flash
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-- if (pos < 62500000) then -- 125Mhz timing / 0.5s
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pos <= pos + 1;
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else
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alight <= not alight;
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pos <= 0;
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end if;
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end if;
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end process flasher;
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LEDS_POSITIONS_TRI_O(0) <= alight;
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LEDS_POSITIONS_TRI_O(1) <= result_is_ok;
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LEDS_POSITIONS_TRI_O(2) <= result_is_ok;
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LEDS_POSITIONS_TRI_O(3) <= processing;
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LEDS_POSITIONS_TRI_O(4) <= alight;
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restart <= PUSH_BUTTONS_5BITS_TRI_I(0);
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end implementation;
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