65 lines
1.6 KiB
Text
65 lines
1.6 KiB
Text
#ifndef SoftModem_h
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#define SoftModem_h
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#include <Arduino.h>
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//#define SOFT_MODEM_BAUD_RATE (126)
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//#define SOFT_MODEM_LOW_FREQ (882)
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//#define SOFT_MODEM_HIGH_FREQ (1764)
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//#define SOFT_MODEM_RX_BUF_SIZE (4)
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//#define SOFT_MODEM_BAUD_RATE (315)
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//#define SOFT_MODEM_LOW_FREQ (1575)
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//#define SOFT_MODEM_HIGH_FREQ (3150)
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//#define SOFT_MODEM_RX_BUF_SIZE (8)
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//#define SOFT_MODEM_BAUD_RATE (630)
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//#define SOFT_MODEM_LOW_FREQ (3150)
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//#define SOFT_MODEM_HIGH_FREQ (6300)
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//#define SOFT_MODEM_RX_BUF_SIZE (16)
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#define SOFT_MODEM_BAUD_RATE (1225)
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#define SOFT_MODEM_LOW_FREQ (4900)
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#define SOFT_MODEM_HIGH_FREQ (7350)
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#define SOFT_MODEM_RX_BUF_SIZE (32)
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//#define SOFT_MODEM_BAUD_RATE (2450)
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//#define SOFT_MODEM_LOW_FREQ (4900)
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//#define SOFT_MODEM_HIGH_FREQ (7350)
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//#define SOFT_MODEM_RX_BUF_SIZE (32)
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#define SOFT_MODEM_DEBUG_ENABLE (0)
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class SoftModem : public Stream
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{
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private:
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volatile uint8_t *_txPortReg;
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uint8_t _txPortMask;
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uint8_t _lastTCNT;
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uint8_t _lastDiff;
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uint8_t _recvStat;
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uint8_t _recvBits;
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uint8_t _recvBufferHead;
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uint8_t _recvBufferTail;
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uint8_t _recvBuffer[SOFT_MODEM_RX_BUF_SIZE];
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uint8_t _lowCount;
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uint8_t _highCount;
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unsigned long _lastWriteTime;
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void modulate(uint8_t b);
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public:
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SoftModem();
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~SoftModem();
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void begin(void);
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void end(void);
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virtual int available();
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virtual int read();
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virtual void flush();
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virtual int peek();
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virtual size_t write(const uint8_t *buffer, size_t size);
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virtual size_t write(uint8_t data);
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void demodulate(void);
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void recv(void);
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static SoftModem *activeObject;
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};
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#endif
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