GNU Radio 3.7.2.1-77 C++ API
simple_framer_sync.h
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/* -*- c++ -*- */
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/*
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* Copyright 2004,2005,2012 Free Software Foundation, Inc.
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*
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* This file is part of GNU Radio
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*
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* GNU Radio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* GNU Radio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef INCLUDED_GR_SIMPLE_FRAMER_SYNC_H
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#define INCLUDED_GR_SIMPLE_FRAMER_SYNC_H
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namespace
gr {
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namespace
digital {
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/*!
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* Here are a couple of maximum length sequences (m-sequences)
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* that were generated by the the "mseq" matlab/octave code
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* downloaded from: <a
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* href="http://www.mathworks.com/matlabcentral/fileexchange/990">http://www.mathworks.com/matlabcentral/fileexchange/990</a>
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*
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* <pre>
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* 31-bit m-sequence:
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* 0110100100001010111011000111110
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* 0x690AEC76 (padded on right with a zero)
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*
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* 63-bit m-sequence:
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* 101011001101110110100100111000101111001010001100001000001111110
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* 0xACDDA4E2F28C20FC (padded on right with a zero)
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* </pre>
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*/
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static
const
unsigned
long
long
GRSF_SYNC
= 0xacdda4e2f28c20fcULL;
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static
const
int
GRSF_BITS_PER_BYTE
= 8;
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static
const
int
GRSF_SYNC_OVERHEAD
=
sizeof
(
GRSF_SYNC
);
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static
const
int
GRSF_PAYLOAD_OVERHEAD
= 1;
// 1 byte seqno
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static
const
int
GRSF_TAIL_PAD
= 1;
// one byte trailing padding
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static
const
int
GRSF_OVERHEAD
=
GRSF_SYNC_OVERHEAD
+
GRSF_PAYLOAD_OVERHEAD
+
GRSF_TAIL_PAD
;
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}
/* namespace digital */
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}
/* namespace gr */
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#endif
/* INCLUDED_GR_SIMPLE_FRAMER_SYNC_H */
gnuradio
gr-digital
include
gnuradio
digital
simple_framer_sync.h
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