From 362d45bb829a9b190586cca79717cc175f4d06d2 Mon Sep 17 00:00:00 2001 From: Tom Rondeau <trondeau@vt.edu> Date: Thu, 19 Apr 2012 16:29:39 -0400 Subject: digital: copying over rest of blocks from gnuradio-core to gr-digital. Includes moving GRC and QA code; new ones where missing. Have not removed blocks from gnuradio-core for compatibility. --- gr-digital/include/digital_simple_framer_sync.h | 51 +++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 gr-digital/include/digital_simple_framer_sync.h (limited to 'gr-digital/include/digital_simple_framer_sync.h') diff --git a/gr-digital/include/digital_simple_framer_sync.h b/gr-digital/include/digital_simple_framer_sync.h new file mode 100644 index 0000000000..4120035827 --- /dev/null +++ b/gr-digital/include/digital_simple_framer_sync.h @@ -0,0 +1,51 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2005,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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 3, or (at your option) + * any later version. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_SIMPLE_FRAMER_SYNC_H +#define INCLUDED_GR_SIMPLE_FRAMER_SYNC_H + +/*! + * \brief Here are a couple of maximum length sequences (m-sequences) + * that were generated by the the "mseq" matlab/octave code downloaded + * from: <a href="http://www.mathworks.com/matlabcentral/fileexchange/990">http://www.mathworks.com/matlabcentral/fileexchange/990</a> + * + * <pre> + * 31-bit m-sequence: + * 0110100100001010111011000111110 + * 0x690AEC76 (padded on right with a zero) + * + * 63-bit m-sequence: + * 101011001101110110100100111000101111001010001100001000001111110 + * 0xACDDA4E2F28C20FC (padded on right with a zero) + * </pre> + */ + +static const unsigned long long GRSF_SYNC = 0xacdda4e2f28c20fcULL; + +static const int GRSF_BITS_PER_BYTE = 8; +static const int GRSF_SYNC_OVERHEAD = sizeof(GRSF_SYNC); +static const int GRSF_PAYLOAD_OVERHEAD = 1; // 1 byte seqno +static const int GRSF_TAIL_PAD = 1; // one byte trailing padding +static const int GRSF_OVERHEAD = GRSF_SYNC_OVERHEAD + GRSF_PAYLOAD_OVERHEAD + GRSF_TAIL_PAD; + + +#endif /* INCLUDED_GR_SIMPLE_FRAMER_SYNC_H */ -- cgit v1.2.3