mirror of
https://github.com/digistump/DigistumpArduino.git
synced 2025-11-03 21:14:46 -08:00
62 lines
1.4 KiB
C++
62 lines
1.4 KiB
C++
|
|
#if USE_SOFTWARE_SERIAL
|
|
#ifndef TinySoftwareSerial_h
|
|
#define TinySoftwareSerial_h
|
|
#include <inttypes.h>
|
|
#include "Stream.h"
|
|
|
|
#if !defined(ACSR) && defined(ACSRA)
|
|
#define ACSR ACSRA
|
|
#endif
|
|
|
|
#if (RAMEND < 250)
|
|
#define SERIAL_BUFFER_SIZE 8
|
|
#elif (RAMEND < 500)
|
|
#define SERIAL_BUFFER_SIZE 16
|
|
#elif (RAMEND < 1000)
|
|
#define SERIAL_BUFFER_SIZE 32
|
|
#else
|
|
#define SERIAL_BUFFER_SIZE 128
|
|
#endif
|
|
struct soft_ring_buffer
|
|
{
|
|
unsigned char buffer[SERIAL_BUFFER_SIZE];
|
|
int head;
|
|
int tail;
|
|
};
|
|
|
|
extern "C"{
|
|
void uartDelay() __attribute__ ((naked));
|
|
uint8_t getch();
|
|
void store_char(unsigned char c, soft_ring_buffer *buffer);
|
|
}
|
|
|
|
class TinySoftwareSerial : public Stream
|
|
{
|
|
public: //should be private but needed by extern "C" {} functions.
|
|
uint8_t _rxmask;
|
|
uint8_t _txmask;
|
|
uint8_t _txunmask;
|
|
soft_ring_buffer *_rx_buffer;
|
|
uint8_t _delayCount;
|
|
public:
|
|
TinySoftwareSerial(soft_ring_buffer *rx_buffer, uint8_t txBit, uint8_t rxBit);
|
|
void begin(long);
|
|
void end();
|
|
virtual int available(void);
|
|
virtual int peek(void);
|
|
virtual int read(void);
|
|
virtual void flush(void);
|
|
virtual size_t write(uint8_t);
|
|
using Print::write; // pull in write(str) and write(buf, size) from Print
|
|
operator bool();
|
|
};
|
|
|
|
#if (!defined(UBRRH) && !defined(UBRR0H)) || USE_SOFTWARE_SERIAL
|
|
extern TinySoftwareSerial Serial;
|
|
#endif
|
|
|
|
//extern void putch(uint8_t);
|
|
#endif
|
|
#endif
|