Subversion Repositories lpffir

#!/usr/bin/python3

# Python version: 3.6.7

import re

# //////////////////////////////////////////////////////////////////////

# ////                                                              ////

# ////  Low Pass Filter FIR IP Core                                 ////

# ////                                                              ////

# ////  This file is part of the LPFFIR project                     ////

# ////  https://opencores.org/projects/lpffir                       ////

# ////                                                              ////

# ////  Description                                                 ////

# ////  Implementation of LPFFIR IP core according to               ////

# ////  LPFFIR IP core specification document.                      ////

# ////                                                              ////

# ////  To Do:                                                      ////

# ////  -                                                           ////

# ////                                                              ////

# ////  Author:                                                     ////

# ////  - Vladimir Armstrong, vladimirarmstrong@opencores.org       ////

# ////                                                              ////

# //////////////////////////////////////////////////////////////////////

# ////                                                              ////

# //// Copyright (C) 2019 Authors and OPENCORES.ORG                 ////

# ////                                                              ////

# //// This source file may be used and distributed without         ////

# //// restriction provided that this copyright statement is not    ////

# //// removed from the file and that any derivative work contains  ////

# //// the original copyright notice and the associated disclaimer. ////

# ////                                                              ////

# //// This source file is free software; you can redistribute it   ////

# //// and/or modify it under the terms of the GNU Lesser General   ////

# //// Public License as published by the Free Software Foundation; ////

# //// either version 2.1 of the License, or (at your option) any   ////

# //// later version.                                               ////

# ////                                                              ////

# //// This source 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 Lesser General Public License for more ////

# //// details.                                                     ////

# ////                                                              ////

# //// You should have received a copy of the GNU Lesser General    ////

# //// Public License along with this source; if not, download it   ////

# //// from http://www.opencores.org/lgpl.shtml                     ////

# ////                                                              ////

# //////////////////////////////////////////////////////////////////////

# path

rtl_path = '../../sim/rtl_sim/out/rtl_impulseResponse.txt'

check_path = '../out/check_impulseResponse.txt'

# open

rtl_file = open(rtl_path,'r')

check_file = open(check_path,'w')

# read

rtl_list = rtl_file.readlines()

# remove header text

del rtl_list[0:9]

# remove newlines

rtl_list2 = [x.replace('\n', '') for x in rtl_list]

# Expected from MATLAB, first 0:5 index is one

oneCount = 0

for index in range(6):

   searchObj = re.search( r'1$', rtl_list2[index])

   if searchObj:

       oneCount += 1

# Expected from MATLAB, last 6:$ index is zero

zeroCount = 0

for index in range(6,len(rtl_list2)):

   searchObj = re.search( r'0$', rtl_list2[index])

   if searchObj:

       zeroCount += 1

# check RTL match MATLAB expected

if oneCount == 6 and zeroCount == 7:

    checkResult = "Impulse Response Test: PASS";

else:

    checkResult =  "Impulse Response Test: FAIL";

# Log

print (checkResult);

check_file.write(checkResult)

# close

rtl_file.close()

check_file.close()