Subversion Repositories robust_fir

<##//////////////////////////////////////////////////////////////////

////                                                             ////

////  Author: Eyal Hochberg                                      ////

////          eyal@provartec.com                                 ////

////                                                             ////

////  Downloaded from: http://www.opencores.org                  ////

/////////////////////////////////////////////////////////////////////

////                                                             ////

//// Copyright (C) 2010 Provartec LTD                            ////

//// www.provartec.com                                           ////

//// info@provartec.com                                          ////

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

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

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

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//// 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.////

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//// This source is distributed in the hope that it will be      ////

//// useful, but WITHOUT ANY WARRANTY; without even the implied  ////

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//// PURPOSE.  See the GNU Lesser General Public License for more////

//// details. http://www.gnu.org/licenses/lgpl.html              ////

////                                                             ////

//////////////////////////////////////////////////////////////////##>

INCLUDE def_fir_basic.txt

##check all input parameters have been given

CHECK CONST(MAC_NUM)

SWAP SON_DELAY  EXPR(COEFF_NUM/MAC_NUM)         ##input delay per son

SWAP SON_COEFF  MAC_NUM                         ##number of son coefficients

SWAP SON_STAGES LOG2(SON_DELAY)                 ##number of binary tree adder stages

SWAP SON_DOUT   EXPR(MULT_BITS+SON_STAGES)      ##bits of son output

SWAP ADD_DOUT   EXPR(SON_DOUT+LOG2(MAC_NUM))    ##bits of adder output

VERIFY(EXPR(COEFF_NUM%MAC_NUM)==0) ##MAC number (multiplayers) must be a division of the coefficient number (FIR order+1)

VERIFY(MAC_NUM>1)                  ##MAC number must be larger than 1 (try using fir_serial.v)

VERIFY(MAC_NUM