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https://github.com/VK3FNG/soundmodem.git
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64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
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/*****************************************************************************/
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/*
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* pam.h -- Defines for the PAM modem.
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*
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* Copyright (C) 1999 Thomas Sailer (sailer@ife.ee.ethz.ch)
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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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* Please note that the GPL allows you to use the driver, NOT the radio.
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* In order to use the radio, you need a license from the communications
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* authority of your country.
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*
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*/
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/*****************************************************************************/
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#ifndef _PAM_H
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#define _PAM_H
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/* ---------------------------------------------------------------------- */
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#include "modem.h"
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/* ---------------------------------------------------------------------- */
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#define SAMPLERATE 22050
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//#define SAMPLERATE 19200
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#define BITRATE 9600
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#define TRAINBITS 32
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#define OBSTRAINBITS (TRAINBITS-CHANNELLEN+1)
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#define DATABYTES 64
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#define DATABITS (DATABYTES * 8)
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#define CHANNELLEN 8
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/* TxFilter */
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#define TXFILTLEN 16
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#define TXFILTOVERBITS 4
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#define TXFILTOVER (1<<(TXFILTOVERBITS))
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#define TXFILTFIDX(x) (((x)>>(16-(TXFILTOVERBITS)))&(TXFILTOVER-1))
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#define TXFILTFSAMP(x) ((x)>>16)
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/* RxFilter */
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#define RXFILTLEN 32
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#define RXFILTOVERBITS 3
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#define RXFILTOVER (1<<(RXFILTOVERBITS))
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#define RXFILTFIDX(x) (((x)>>(16-(RXFILTOVERBITS)))&(RXFILTOVER-1))
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#define RXFILTFSAMP(x) ((x)>>16)
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/* ---------------------------------------------------------------------- */
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#endif /* _PAM_H */
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