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-----------------------------------------------------------------------
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---- ----
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---- Present - a lightweight block cipher project ----
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---- ----
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---- This file is part of the Present - a lightweight block ----
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---- cipher project ----
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---- http://www.http://opencores.org/project,present ----
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---- ----
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---- Description: ----
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---- This test bench simulate data transfer between PC and ----
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---- PresentDecodeComm core. All test data were generated in ----
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---- another program and textio was used for processing. Test bench----
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---- is for to distinct data sets. ----
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---- To Do: ----
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---- ----
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---- Author(s): ----
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---- - Krzysztof Gajewski, gajos@opencores.org ----
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---- k.gajewski@gmail.com ----
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---- ----
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-----------------------------------------------------------------------
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---- ----
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---- Copyright (C) 2013 Authors 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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LIBRARY ieee;
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USE ieee.std_logic_1164.ALL;
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USE std.textio.all;
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USE work.txt_util.all;
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USE ieee.std_logic_textio.all;
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-- Uncomment the following library declaration if using
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-- arithmetic functions with Signed or Unsigned values
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--USE ieee.numeric_std.ALL;
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ENTITY PresentDecodeCommTB IS
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END PresentDecodeCommTB;
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ARCHITECTURE behavior OF PresentDecodeCommTB IS
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-- Component Declaration for the Unit Under Test (UUT)
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COMPONENT PresentDecodeComm
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PORT(
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DATA_RXD : IN std_logic;
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CLK : IN std_logic;
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RESET : IN std_logic;
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DATA_TXD : OUT std_logic
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);
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END COMPONENT;
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--Inputs
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signal DATA_RXD : std_logic := '0';
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signal CLK : std_logic := '0';
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signal RESET : std_logic := '0';
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--Outputs
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signal DATA_TXD : std_logic;
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-- Clock period definitions
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-- speed of DIGILENT board and RS-232 core
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constant CLK_period : time := 20 ns;
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BEGIN
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-- Instantiate the Unit Under Test (UUT)
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uut: PresentDecodeComm PORT MAP (
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DATA_RXD => DATA_RXD,
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CLK => CLK,
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RESET => RESET,
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DATA_TXD => DATA_TXD
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);
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-- Clock process definitions
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CLK_process :process
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begin
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CLK <= '0';
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wait for CLK_period/2;
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CLK <= '1';
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wait for CLK_period/2;
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end process;
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-- Stimulus process
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stim_proc: process
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-- Variables
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file txt :text is in "test/data.txt";
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file key :text is in "test/key.txt";
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file txt2 :text is in "test/data2.txt";
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file key2 :text is in "test/key2.txt";
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variable line_in : line;
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variable line_content : string(1 to 8);
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variable data : STD_LOGIC;
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begin
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DATA_RXD <= '1';
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RESET <= '1';
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wait for 1000 ns;
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RESET <= '0';
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wait for CLK_period*10;
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-- Reading first 'data' file each "segment" is one bit of serial data
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while not (endfile(txt)) loop
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readline(txt, line_in); -- info line
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read(line_in, line_content);
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report line_content;
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DATA_RXD <= '0'; -- start bit
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-- this amount is due to estimation of period of time needed for sending
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-- one bit in RS-232 with 115 200 bps bandwith
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wait for 8.75 us;
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readline(txt, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt, line_in);
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read(line_in, data);
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DATA_RXD <= data; -- parity bit
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wait for 8.75 us;
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report "Koniec bajtu";
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DATA_RXD <= '1'; -- stop bit
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wait for 100 us;
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end loop;
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-- Reading first 'key' file each "segment" is one bit of serial data
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while not (endfile(key)) loop
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readline(key, line_in); -- info line
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read(line_in, line_content);
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report line_content;
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DATA_RXD <= '0'; -- start bit
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wait for 8.75 us;
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readline(key, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key, line_in);
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read(line_in, data);
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DATA_RXD <= data; -- parity bit
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wait for 8.75 us;
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report "Koniec bajtu";
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DATA_RXD <= '1'; -- stop bit
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wait for 100 us;
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end loop;
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-- Cipher counting and sending result
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wait for 2000 us;
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-- Reading second 'data2' file each "segment" is one bit of serial data
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while not (endfile(txt2)) loop
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readline(txt2, line_in); -- info line
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read(line_in, line_content);
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report line_content;
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DATA_RXD <= '0'; -- start bit
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wait for 8.75 us;
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readline(txt2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(txt2, line_in);
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read(line_in, data);
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DATA_RXD <= data; -- parity bit
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wait for 8.75 us;
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report "Koniec bajtu";
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DATA_RXD <= '1'; -- stop bit
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wait for 100 us;
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end loop;
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-- Reading second 'key2' file each "segment" is one bit of serial data
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while not (endfile(key2)) loop
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readline(key2, line_in); -- info line
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read(line_in, line_content);
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report line_content;
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DATA_RXD <= '0'; -- start bit
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wait for 8.75 us;
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readline(key2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key2, line_in);
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read(line_in, data);
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DATA_RXD <= data;
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wait for 8.75 us;
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readline(key2, line_in);
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read(line_in, data);
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DATA_RXD <= data; -- parity bit
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wait for 8.75 us;
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report "Koniec bajtu";
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DATA_RXD <= '1'; -- stop bit
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wait for 100 us;
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end loop;
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|
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-- Cipher counting and sending result
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wait for 2000 us;
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|
|
assert false severity failure;
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end process;
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|
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END;
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No newline at end of file
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No newline at end of file
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