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-- Copyright (C) 2004-2005 Digish Pandya <digish.pandya@gmail.com> -- This program 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; either version 2 of the License, or -- (at your option) any later version. -- -- This program 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 program; if not, write to the Free Software -- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -- VHDL Test Bench Created from source file tf_lms.vhd -- 14:23:32 02/24/2005 -- -- 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. -- LIBRARY ieee; USE ieee.std_logic_1164.ALL; USE ieee.numeric_std.ALL; LIBRARY ieee; USE IEEE.STD_LOGIC_TEXTIO.ALL; USE STD.TEXTIO.ALL; ENTITY testbench IS END testbench; ARCHITECTURE behavior OF testbench IS FILE RESULTS: TEXT IS OUT "yout.txt"; FILE ERRF: TEXT IS OUT "error.txt"; FUNCTION to_hex( x : IN std_logic_vector) RETURN string IS VARIABLE result : STRING(1 TO 8); -- 1024 bits max VARIABLE i : INTEGER; VARIABLE imod : INTEGER; VARIABLE j : INTEGER; VARIABLE newx : std_logic_vector(1023 DOWNTO 0); BEGIN newx := (OTHERS => '0'); newx(x'RANGE) := x; i := 7; j := 1; WHILE i >= 0 LOOP IF newx(i) = '0' THEN result(j) := '0'; elsif newx(i) = '1' THEN result(j) := '1'; ELSE result(j) := 'X'; END IF; i := i-1; j := j+1; END LOOP; RETURN result(1 TO j-1); END; COMPONENT tf_lms PORT( xin : IN std_logic_vector(7 downto 0); dxin : IN std_logic_vector(7 downto 0); clock : IN std_logic; err: out std_logic_vector(7 downto 0); adapt_en: in std_logic; yout : OUT std_logic_vector(7 downto 0) ); END COMPONENT; SIGNAL xin : std_logic_vector(7 downto 0); SIGNAL dxin : std_logic_vector(7 downto 0); SIGNAL clock : std_logic; SIGNAL yout : std_logic_vector(7 downto 0); signal err: std_logic_vector(7 downto 0); signal adapt_en : std_logic; CONSTANT clk_high : time := 10 ns; CONSTANT clk_low : time := 10 ns; CONSTANT clk_period : time := 20 ns; CONSTANT clk_hold : time := 4 ns; TYPE filter_data IS ARRAY (0 TO 999) OF std_logic_vector(7 downto 0); TYPE filter_out_table IS ARRAY (0 TO 999)OF std_logic_vector(7 downto 0); -- Constants CONSTANT filter_dx_in : filter_data := ( "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000", "01000000", "11000000" ); CONSTANT filter_x_in : filter_data := ( "11110011", "00100110", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", 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"01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010", "10100110", "01011010" ); BEGIN uut: tf_lms PORT MAP( xin => xin, dxin => dxin, clock => clock, err => err, adapt_en => adapt_en, yout => yout ); -- *** Test Bench - User Defined Section *** clk_gen: PROCESS BEGIN clock <= '1'; WAIT FOR clk_high; clock <= '0'; WAIT FOR clk_low; END PROCESS clk_gen; tb: PROCESS variable IN_x,IN_dx:std_logic_vector(7 downto 0); VARIABLE TX_STR : String(1 to 512); VARIABLE TX_LOC : LINE; VARIABLE RX_LOC : LINE; BEGIN adapt_en <= '1'; FOR n IN 0 TO 500 LOOP -- readline(F_XIN,xin); --xin <= IN_X; --Deallocate(RX_LOC); xin <= filter_x_in(n); dxin <= filter_dx_in(n); wait for clk_period; write(TX_LOC,string'("'")); write(TX_LOC, yout); write(TX_LOC,string'("'")); writeline(results, TX_LOC); Deallocate(TX_LOC); write(TX_LOC,string'("'")); write(TX_LOC, err); write(TX_LOC,string'("'")); writeline(ERRF, TX_LOC); Deallocate(TX_LOC); end loop; -- adapt_en <= '0'; FOR n IN 501 TO 999 LOOP -- readline(F_XIN,xin); --xin <= IN_X; --Deallocate(RX_LOC); xin <= filter_x_in(n); dxin <= filter_dx_in(n); wait for clk_period; write(TX_LOC,string'("'")); write(TX_LOC, yout); write(TX_LOC,string'("'")); writeline(results, TX_LOC); Deallocate(TX_LOC); write(TX_LOC,string'("'")); write(TX_LOC, err); write(TX_LOC,string'("'")); writeline(ERRF, TX_LOC); Deallocate(TX_LOC); end loop; wait; -- will wait forever END PROCESS; -- *** End Test Bench - User Defined Section *** END;
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