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https://github.com/g4klx/MMDVM.git
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694b83123a
In to NXDN possible problem on sinc filter anc isinc filter, think they must be recalculated but do not know how to do it. On D-STAR, DMR, C4FM and P25 it work.
55 lines
2.3 KiB
C
55 lines
2.3 KiB
C
/*
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* Copyright (C) 2016,2017 by Jonathan Naylor G4KLX
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#if !defined(YSFDEFINES_H)
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#define YSFDEFINES_H
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const unsigned int YSF_RADIO_SYMBOL_LENGTH = 10U; // At 48 kHz sample rate
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const unsigned int YSF_FRAME_LENGTH_BYTES = 120U;
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const unsigned int YSF_FRAME_LENGTH_BITS = YSF_FRAME_LENGTH_BYTES * 8U;
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const unsigned int YSF_FRAME_LENGTH_SYMBOLS = YSF_FRAME_LENGTH_BYTES * 4U;
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const unsigned int YSF_FRAME_LENGTH_SAMPLES = YSF_FRAME_LENGTH_SYMBOLS * YSF_RADIO_SYMBOL_LENGTH;
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const unsigned int YSF_SYNC_LENGTH_BYTES = 5U;
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const unsigned int YSF_SYNC_LENGTH_BITS = YSF_SYNC_LENGTH_BYTES * 8U;
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const unsigned int YSF_SYNC_LENGTH_SYMBOLS = YSF_SYNC_LENGTH_BYTES * 4U;
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const unsigned int YSF_SYNC_LENGTH_SAMPLES = YSF_SYNC_LENGTH_SYMBOLS * YSF_RADIO_SYMBOL_LENGTH;
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const unsigned int YSF_FICH_LENGTH_BITS = 200U;
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const unsigned int YSF_FICH_LENGTH_SYMBOLS = 100U;
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const unsigned int YSF_FICH_LENGTH_SAMPLES = YSF_FICH_LENGTH_SYMBOLS * YSF_RADIO_SYMBOL_LENGTH;
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const uint8_t YSF_SYNC_BYTES[] = {0xD4U, 0x71U, 0xC9U, 0x63U, 0x4DU};
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const uint8_t YSF_SYNC_BYTES_LENGTH = 5U;
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const uint64_t YSF_SYNC_BITS = 0x000000D471C9634DU;
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const uint64_t YSF_SYNC_BITS_MASK = 0x000000FFFFFFFFFFU;
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// D 4 7 1 C 9 6 3 4 D
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// 11 01 01 00 01 11 00 01 11 00 10 01 01 10 00 11 01 00 11 01
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// -3 +3 +3 +1 +3 -3 +1 +3 -3 +1 -1 +3 +3 -1 +3 -3 +3 +1 -3 +3
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const int8_t YSF_SYNC_SYMBOLS_VALUES[] = {-3, +3, +3, +1, +3, -3, +1, +3, -3, +1, -1, +3, +3, -1, +3, -3, +3, +1, -3, +3};
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const uint32_t YSF_SYNC_SYMBOLS = 0x0007B5ADU;
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const uint32_t YSF_SYNC_SYMBOLS_MASK = 0x000FFFFFU;
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#endif
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