mirror of https://github.com/markqvist/MMDVM.git
51 lines
2.0 KiB
C
51 lines
2.0 KiB
C
/*
|
|
* Copyright (C) 2016,2017,2018 by Jonathan Naylor G4KLX
|
|
*
|
|
* This program 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 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#if !defined(NXDNDEFINES_H)
|
|
#define NXDNDEFINES_H
|
|
|
|
const unsigned int NXDN_RADIO_SYMBOL_LENGTH = 10U; // At 24 kHz sample rate
|
|
|
|
const unsigned int NXDN_FRAME_LENGTH_BITS = 384U;
|
|
const unsigned int NXDN_FRAME_LENGTH_BYTES = NXDN_FRAME_LENGTH_BITS / 8U;
|
|
const unsigned int NXDN_FRAME_LENGTH_SYMBOLS = NXDN_FRAME_LENGTH_BITS / 2U;
|
|
const unsigned int NXDN_FRAME_LENGTH_SAMPLES = NXDN_FRAME_LENGTH_SYMBOLS * NXDN_RADIO_SYMBOL_LENGTH;
|
|
|
|
const unsigned int NXDN_FSW_LENGTH_BITS = 20U;
|
|
const unsigned int NXDN_FSW_LENGTH_SYMBOLS = NXDN_FSW_LENGTH_BITS / 2U;
|
|
const unsigned int NXDN_FSW_LENGTH_SAMPLES = NXDN_FSW_LENGTH_SYMBOLS * NXDN_RADIO_SYMBOL_LENGTH;
|
|
|
|
const uint8_t NXDN_FSW_BYTES[] = {0xCDU, 0xF5U, 0x90U};
|
|
const uint8_t NXDN_FSW_BYTES_MASK[] = {0xFFU, 0xFFU, 0xF0U};
|
|
const uint8_t NXDN_FSW_BYTES_LENGTH = 3U;
|
|
|
|
const uint32_t NXDN_FSW_BITS = 0x000CDF59U;
|
|
const uint32_t NXDN_FSW_BITS_MASK = 0x000FFFFFU;
|
|
|
|
// C D F 5 9
|
|
// 11 00 11 01 11 11 01 01 10 01
|
|
// -3 +1 -3 +3 -3 -3 +3 +3 -1 +3
|
|
|
|
const int8_t NXDN_FSW_SYMBOLS_VALUES[] = {-3, +1, -3, +3, -3, -3, +3, +3, -1, +3};
|
|
|
|
const uint16_t NXDN_FSW_SYMBOLS = 0x014DU;
|
|
const uint16_t NXDN_FSW_SYMBOLS_MASK = 0x03FFU;
|
|
|
|
#endif
|
|
|