mirror of https://github.com/g4klx/MMDVM.git
37 lines
1.4 KiB
C
37 lines
1.4 KiB
C
/*
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* Copyright (C) 2020 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(AX25DEFINES_H)
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#define AX25DEFINES_H
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const uint8_t AX25_RADIO_SYMBOL_LENGTH = 20U; // At 24 kHz sample rate
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const uint8_t AX25_FRAME_START = 0x7EU;
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const uint8_t AX25_FRAME_END = 0x7EU;
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const uint8_t AX25_FRAME_ABORT = 0xFEU;
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const uint8_t AX25_MAX_ONES = 5U;
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const uint16_t AX25_MIN_FRAME_LENGTH = 17U; // Callsign (7) + Callsign (7) + Control (1) + Checksum (2)
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const uint16_t AX25_MAX_FRAME_LENGTH = 330U; // Callsign (7) + Callsign (7) + 8 Digipeaters (56) +
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// Control (1) + PID (1) + Data (256) + Checksum (2)
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#endif
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