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gajos |
---- ----
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---- This file is part of the Montgomery modular multiplier ----
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---- and exponentiator ----
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---- https://opencores.org/projects/mod_mult_exp ----
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---- ----
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---- Description: ----
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---- Test bench for Montgomery multiplier and exponentiator ----
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---- with 512 bit word length enclosed in RS232 communication ----
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---- with computer. Some kind of demo application of the ----
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---- project. Due to it uses serial communication, demo of ----
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---- this part is somewhat tricky. Most convienient way is to ----
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---- use graphical window. It is simulated all communication ----
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---- - sending data and exponentiation. ----
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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) 2019 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 ModExpComm512bitTB IS
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END ModExpComm512bitTB;
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ARCHITECTURE behavior OF ModExpComm512bitTB IS
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-- Component Declaration for the Unit Under Test (UUT)
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COMPONENT ModExpComm
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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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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: ModExpComm
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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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-- All data sent are prepared in files listed below. Data are stored
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-- in sim/rtl_sim/bin folder . Data are grouped in packets of bytes.
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-- Data from the files are explained in the Result.txt folder.
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file BaseFile :text is in "testData512bit/Base.txt";
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file ModulusFile :text is in "testData512bit/Modulus.txt";
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file ExponentFile :text is in "testData512bit/Exponent.txt";
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file ResiduumFile :text is in "testData512bit/Residuum.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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-- Data transmission
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-- All data are sent in direction from LSB to MSB
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-- 8.75 us 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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-- Command mn_read_base 00000 000
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DATA_RXD <= '0'; -- start bit
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wait for 8.75 us;
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DATA_RXD <= '0';
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wait for 8.75 us;
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DATA_RXD <= '0';
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wait for 8.75 us;
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DATA_RXD <= '0';
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wait for 8.75 us;
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DATA_RXD <= '0';
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wait for 8.75 us;
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DATA_RXD <= '0';
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wait for 8.75 us;
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DATA_RXD <= '0';
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wait for 8.75 us;
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DATA_RXD <= '0';
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wait for 8.75 us;
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DATA_RXD <= '0';
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wait for 8.75 us;
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DATA_RXD <= '1'; -- parity bit
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wait for 8.75 us;
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DATA_RXD <= '1'; -- stop bit
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wait for 100 us;
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-- READ base - 512-bit number from the file
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while not (endfile(BaseFile)) loop
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readline(BaseFile, 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(BaseFile, 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(BaseFile, 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(BaseFile, 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(BaseFile, 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(BaseFile, 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(BaseFile, 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(BaseFile, 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(BaseFile, 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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| 206 |
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readline(BaseFile, 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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| 211 |
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report "End of byte";
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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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| 216 |
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-- Command mn_read_modulus 00000 001
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| 217 |
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DATA_RXD <= '0'; -- start bit
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wait for 8.75 us;
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| 219 |
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DATA_RXD <= '1';
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| 220 |
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wait for 8.75 us;
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| 221 |
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DATA_RXD <= '0';
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| 222 |
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wait for 8.75 us;
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| 223 |
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DATA_RXD <= '0';
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| 224 |
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wait for 8.75 us;
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| 225 |
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DATA_RXD <= '0';
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| 226 |
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wait for 8.75 us;
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DATA_RXD <= '0';
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| 228 |
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wait for 8.75 us;
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| 229 |
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DATA_RXD <= '0';
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| 230 |
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wait for 8.75 us;
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| 231 |
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DATA_RXD <= '0';
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| 232 |
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wait for 8.75 us;
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| 233 |
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DATA_RXD <= '0';
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| 234 |
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wait for 8.75 us;
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DATA_RXD <= '0'; -- parity bit
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| 236 |
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wait for 8.75 us;
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| 237 |
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DATA_RXD <= '1'; -- stop bit
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| 238 |
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wait for 100 us;
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| 239 |
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| 240 |
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-- READ modulus - 512-bit number from the file
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| 241 |
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| 242 |
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while not (endfile(ModulusFile)) loop
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readline(ModulusFile, line_in); -- info line
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| 244 |
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read(line_in, line_content);
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| 245 |
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report line_content;
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| 246 |
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| 247 |
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DATA_RXD <= '0'; -- start bit
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| 248 |
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wait for 8.75 us;
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| 249 |
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| 250 |
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readline(ModulusFile, line_in);
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| 251 |
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read(line_in, data);
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| 252 |
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DATA_RXD <= data;
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| 253 |
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wait for 8.75 us;
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| 254 |
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| 255 |
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readline(ModulusFile, line_in);
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| 256 |
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read(line_in, data);
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| 257 |
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DATA_RXD <= data;
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| 258 |
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wait for 8.75 us;
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| 259 |
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| 260 |
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readline(ModulusFile, line_in);
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| 261 |
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read(line_in, data);
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| 262 |
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DATA_RXD <= data;
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| 263 |
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wait for 8.75 us;
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| 264 |
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| 265 |
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readline(ModulusFile, line_in);
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| 266 |
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read(line_in, data);
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| 267 |
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DATA_RXD <= data;
|
| 268 |
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wait for 8.75 us;
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| 269 |
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| 270 |
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readline(ModulusFile, line_in);
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| 271 |
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read(line_in, data);
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| 272 |
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DATA_RXD <= data;
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| 273 |
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wait for 8.75 us;
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| 274 |
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| 275 |
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readline(ModulusFile, line_in);
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| 276 |
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read(line_in, data);
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| 277 |
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DATA_RXD <= data;
|
| 278 |
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wait for 8.75 us;
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| 279 |
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| 280 |
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readline(ModulusFile, line_in);
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| 281 |
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read(line_in, data);
|
| 282 |
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DATA_RXD <= data;
|
| 283 |
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wait for 8.75 us;
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| 284 |
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| 285 |
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readline(ModulusFile, line_in);
|
| 286 |
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read(line_in, data);
|
| 287 |
|
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DATA_RXD <= data;
|
| 288 |
|
|
wait for 8.75 us;
|
| 289 |
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|
| 290 |
|
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readline(ModulusFile, line_in);
|
| 291 |
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read(line_in, data);
|
| 292 |
|
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DATA_RXD <= data; -- parity bit
|
| 293 |
|
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wait for 8.75 us;
|
| 294 |
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|
| 295 |
|
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report "End of byte";
|
| 296 |
|
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DATA_RXD <= '1'; -- stop bit
|
| 297 |
|
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wait for 100 us;
|
| 298 |
|
|
end loop;
|
| 299 |
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|
|
| 300 |
|
|
-- Command mn_read_exponent 00000 010
|
| 301 |
|
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DATA_RXD <= '0'; -- start bit
|
| 302 |
|
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wait for 8.75 us;
|
| 303 |
|
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DATA_RXD <= '0';
|
| 304 |
|
|
wait for 8.75 us;
|
| 305 |
|
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DATA_RXD <= '1';
|
| 306 |
|
|
wait for 8.75 us;
|
| 307 |
|
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DATA_RXD <= '0';
|
| 308 |
|
|
wait for 8.75 us;
|
| 309 |
|
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DATA_RXD <= '0';
|
| 310 |
|
|
wait for 8.75 us;
|
| 311 |
|
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DATA_RXD <= '0';
|
| 312 |
|
|
wait for 8.75 us;
|
| 313 |
|
|
DATA_RXD <= '0';
|
| 314 |
|
|
wait for 8.75 us;
|
| 315 |
|
|
DATA_RXD <= '0';
|
| 316 |
|
|
wait for 8.75 us;
|
| 317 |
|
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DATA_RXD <= '0';
|
| 318 |
|
|
wait for 8.75 us;
|
| 319 |
|
|
DATA_RXD <= '0'; -- parity bit
|
| 320 |
|
|
wait for 8.75 us;
|
| 321 |
|
|
DATA_RXD <= '1'; -- stop bit
|
| 322 |
|
|
wait for 100 us;
|
| 323 |
|
|
|
| 324 |
|
|
-- READ exponent - 512-bit number from the file
|
| 325 |
|
|
|
| 326 |
|
|
while not (endfile(ExponentFile)) loop
|
| 327 |
|
|
readline(ExponentFile, line_in); -- info line
|
| 328 |
|
|
read(line_in, line_content);
|
| 329 |
|
|
report line_content;
|
| 330 |
|
|
|
| 331 |
|
|
DATA_RXD <= '0'; -- start bit
|
| 332 |
|
|
wait for 8.75 us;
|
| 333 |
|
|
|
| 334 |
|
|
readline(ExponentFile, line_in);
|
| 335 |
|
|
read(line_in, data);
|
| 336 |
|
|
DATA_RXD <= data;
|
| 337 |
|
|
wait for 8.75 us;
|
| 338 |
|
|
|
| 339 |
|
|
readline(ExponentFile, line_in);
|
| 340 |
|
|
read(line_in, data);
|
| 341 |
|
|
DATA_RXD <= data;
|
| 342 |
|
|
wait for 8.75 us;
|
| 343 |
|
|
|
| 344 |
|
|
readline(ExponentFile, line_in);
|
| 345 |
|
|
read(line_in, data);
|
| 346 |
|
|
DATA_RXD <= data;
|
| 347 |
|
|
wait for 8.75 us;
|
| 348 |
|
|
|
| 349 |
|
|
readline(ExponentFile, line_in);
|
| 350 |
|
|
read(line_in, data);
|
| 351 |
|
|
DATA_RXD <= data;
|
| 352 |
|
|
wait for 8.75 us;
|
| 353 |
|
|
|
| 354 |
|
|
readline(ExponentFile, line_in);
|
| 355 |
|
|
read(line_in, data);
|
| 356 |
|
|
DATA_RXD <= data;
|
| 357 |
|
|
wait for 8.75 us;
|
| 358 |
|
|
|
| 359 |
|
|
readline(ExponentFile, line_in);
|
| 360 |
|
|
read(line_in, data);
|
| 361 |
|
|
DATA_RXD <= data;
|
| 362 |
|
|
wait for 8.75 us;
|
| 363 |
|
|
|
| 364 |
|
|
readline(ExponentFile, line_in);
|
| 365 |
|
|
read(line_in, data);
|
| 366 |
|
|
DATA_RXD <= data;
|
| 367 |
|
|
wait for 8.75 us;
|
| 368 |
|
|
|
| 369 |
|
|
readline(ExponentFile, line_in);
|
| 370 |
|
|
read(line_in, data);
|
| 371 |
|
|
DATA_RXD <= data;
|
| 372 |
|
|
wait for 8.75 us;
|
| 373 |
|
|
|
| 374 |
|
|
readline(ExponentFile, line_in);
|
| 375 |
|
|
read(line_in, data);
|
| 376 |
|
|
DATA_RXD <= data; -- parity bit
|
| 377 |
|
|
wait for 8.75 us;
|
| 378 |
|
|
|
| 379 |
|
|
report "End of byte";
|
| 380 |
|
|
DATA_RXD <= '1'; -- stop bit
|
| 381 |
|
|
wait for 100 us;
|
| 382 |
|
|
end loop;
|
| 383 |
|
|
|
| 384 |
|
|
-- Command mn_read_residuum 00000 011
|
| 385 |
|
|
DATA_RXD <= '0'; -- start bit
|
| 386 |
|
|
wait for 8.75 us;
|
| 387 |
|
|
DATA_RXD <= '1';
|
| 388 |
|
|
wait for 8.75 us;
|
| 389 |
|
|
DATA_RXD <= '1';
|
| 390 |
|
|
wait for 8.75 us;
|
| 391 |
|
|
DATA_RXD <= '0';
|
| 392 |
|
|
wait for 8.75 us;
|
| 393 |
|
|
DATA_RXD <= '0';
|
| 394 |
|
|
wait for 8.75 us;
|
| 395 |
|
|
DATA_RXD <= '0';
|
| 396 |
|
|
wait for 8.75 us;
|
| 397 |
|
|
DATA_RXD <= '0';
|
| 398 |
|
|
wait for 8.75 us;
|
| 399 |
|
|
DATA_RXD <= '0';
|
| 400 |
|
|
wait for 8.75 us;
|
| 401 |
|
|
DATA_RXD <= '0';
|
| 402 |
|
|
wait for 8.75 us;
|
| 403 |
|
|
DATA_RXD <= '1'; -- parity bit
|
| 404 |
|
|
wait for 8.75 us;
|
| 405 |
|
|
DATA_RXD <= '1'; -- stop bit
|
| 406 |
|
|
wait for 100 us;
|
| 407 |
|
|
|
| 408 |
|
|
-- READ residuum - 512-bit number from the file
|
| 409 |
|
|
|
| 410 |
|
|
while not (endfile(ResiduumFile)) loop
|
| 411 |
|
|
readline(ResiduumFile, line_in); -- info line
|
| 412 |
|
|
read(line_in, line_content);
|
| 413 |
|
|
report line_content;
|
| 414 |
|
|
|
| 415 |
|
|
DATA_RXD <= '0'; -- start bit
|
| 416 |
|
|
wait for 8.75 us;
|
| 417 |
|
|
|
| 418 |
|
|
readline(ResiduumFile, line_in);
|
| 419 |
|
|
read(line_in, data);
|
| 420 |
|
|
DATA_RXD <= data;
|
| 421 |
|
|
wait for 8.75 us;
|
| 422 |
|
|
|
| 423 |
|
|
readline(ResiduumFile, line_in);
|
| 424 |
|
|
read(line_in, data);
|
| 425 |
|
|
DATA_RXD <= data;
|
| 426 |
|
|
wait for 8.75 us;
|
| 427 |
|
|
|
| 428 |
|
|
readline(ResiduumFile, line_in);
|
| 429 |
|
|
read(line_in, data);
|
| 430 |
|
|
DATA_RXD <= data;
|
| 431 |
|
|
wait for 8.75 us;
|
| 432 |
|
|
|
| 433 |
|
|
readline(ResiduumFile, line_in);
|
| 434 |
|
|
read(line_in, data);
|
| 435 |
|
|
DATA_RXD <= data;
|
| 436 |
|
|
wait for 8.75 us;
|
| 437 |
|
|
|
| 438 |
|
|
readline(ResiduumFile, line_in);
|
| 439 |
|
|
read(line_in, data);
|
| 440 |
|
|
DATA_RXD <= data;
|
| 441 |
|
|
wait for 8.75 us;
|
| 442 |
|
|
|
| 443 |
|
|
readline(ResiduumFile, line_in);
|
| 444 |
|
|
read(line_in, data);
|
| 445 |
|
|
DATA_RXD <= data;
|
| 446 |
|
|
wait for 8.75 us;
|
| 447 |
|
|
|
| 448 |
|
|
readline(ResiduumFile, line_in);
|
| 449 |
|
|
read(line_in, data);
|
| 450 |
|
|
DATA_RXD <= data;
|
| 451 |
|
|
wait for 8.75 us;
|
| 452 |
|
|
|
| 453 |
|
|
readline(ResiduumFile, line_in);
|
| 454 |
|
|
read(line_in, data);
|
| 455 |
|
|
DATA_RXD <= data;
|
| 456 |
|
|
wait for 8.75 us;
|
| 457 |
|
|
|
| 458 |
|
|
readline(ResiduumFile, line_in);
|
| 459 |
|
|
read(line_in, data);
|
| 460 |
|
|
DATA_RXD <= data; -- parity bit
|
| 461 |
|
|
wait for 8.75 us;
|
| 462 |
|
|
|
| 463 |
|
|
report "End of byte";
|
| 464 |
|
|
DATA_RXD <= '1'; -- stop bit
|
| 465 |
|
|
wait for 100 us;
|
| 466 |
|
|
end loop;
|
| 467 |
|
|
|
| 468 |
|
|
-- Command mn_count_power -- 00000 100
|
| 469 |
|
|
DATA_RXD <= '0'; -- start bit
|
| 470 |
|
|
wait for 8.75 us;
|
| 471 |
|
|
DATA_RXD <= '0';
|
| 472 |
|
|
wait for 8.75 us;
|
| 473 |
|
|
DATA_RXD <= '0';
|
| 474 |
|
|
wait for 8.75 us;
|
| 475 |
|
|
DATA_RXD <= '1';
|
| 476 |
|
|
wait for 8.75 us;
|
| 477 |
|
|
DATA_RXD <= '0';
|
| 478 |
|
|
wait for 8.75 us;
|
| 479 |
|
|
DATA_RXD <= '0';
|
| 480 |
|
|
wait for 8.75 us;
|
| 481 |
|
|
DATA_RXD <= '0';
|
| 482 |
|
|
wait for 8.75 us;
|
| 483 |
|
|
DATA_RXD <= '0';
|
| 484 |
|
|
wait for 8.75 us;
|
| 485 |
|
|
DATA_RXD <= '0';
|
| 486 |
|
|
wait for 8.75 us;
|
| 487 |
|
|
DATA_RXD <= '0'; -- parity bit
|
| 488 |
|
|
wait for 8.75 us;
|
| 489 |
|
|
DATA_RXD <= '1'; -- stop bit
|
| 490 |
|
|
wait for 64 ms;
|
| 491 |
|
|
|
| 492 |
|
|
-- Wait for exponentiation process
|
| 493 |
|
|
|
| 494 |
|
|
-- Command mn_show_result -- 00000 101
|
| 495 |
|
|
DATA_RXD <= '0'; -- start bit
|
| 496 |
|
|
wait for 8.75 us;
|
| 497 |
|
|
DATA_RXD <= '1';
|
| 498 |
|
|
wait for 8.75 us;
|
| 499 |
|
|
DATA_RXD <= '0';
|
| 500 |
|
|
wait for 8.75 us;
|
| 501 |
|
|
DATA_RXD <= '1';
|
| 502 |
|
|
wait for 8.75 us;
|
| 503 |
|
|
DATA_RXD <= '0';
|
| 504 |
|
|
wait for 8.75 us;
|
| 505 |
|
|
DATA_RXD <= '0';
|
| 506 |
|
|
wait for 8.75 us;
|
| 507 |
|
|
DATA_RXD <= '0';
|
| 508 |
|
|
wait for 8.75 us;
|
| 509 |
|
|
DATA_RXD <= '0';
|
| 510 |
|
|
wait for 8.75 us;
|
| 511 |
|
|
DATA_RXD <= '0';
|
| 512 |
|
|
wait for 8.75 us;
|
| 513 |
|
|
DATA_RXD <= '1'; -- parity bit
|
| 514 |
|
|
wait for 8.75 us;
|
| 515 |
|
|
DATA_RXD <= '1'; -- stop bit
|
| 516 |
|
|
wait for 15 ms;
|
| 517 |
|
|
|
| 518 |
|
|
-- Command mn_prepare_for_data -- 00000 111
|
| 519 |
|
|
DATA_RXD <= '0'; -- start bit
|
| 520 |
|
|
wait for 8.75 us;
|
| 521 |
|
|
DATA_RXD <= '1';
|
| 522 |
|
|
wait for 8.75 us;
|
| 523 |
|
|
DATA_RXD <= '1';
|
| 524 |
|
|
wait for 8.75 us;
|
| 525 |
|
|
DATA_RXD <= '1';
|
| 526 |
|
|
wait for 8.75 us;
|
| 527 |
|
|
DATA_RXD <= '0';
|
| 528 |
|
|
wait for 8.75 us;
|
| 529 |
|
|
DATA_RXD <= '0';
|
| 530 |
|
|
wait for 8.75 us;
|
| 531 |
|
|
DATA_RXD <= '0';
|
| 532 |
|
|
wait for 8.75 us;
|
| 533 |
|
|
DATA_RXD <= '0';
|
| 534 |
|
|
wait for 8.75 us;
|
| 535 |
|
|
DATA_RXD <= '0';
|
| 536 |
|
|
wait for 8.75 us;
|
| 537 |
|
|
DATA_RXD <= '0'; -- parity bit
|
| 538 |
|
|
wait for 8.75 us;
|
| 539 |
|
|
DATA_RXD <= '1'; -- stop bit
|
| 540 |
|
|
wait for 100 us;
|
| 541 |
|
|
|
| 542 |
|
|
assert false severity failure;
|
| 543 |
|
|
|
| 544 |
|
|
end process;
|
| 545 |
|
|
|
| 546 |
|
|
END;
|
