KLASSENTS
778608b576
В функции analogWrite() добавлена проверка, включен ли уже канал - если включен, применяется новое значение только если оно отличается от текущего. В модулях Wire, SPI, Serial теперь по два экземпляра в соответствии с периферией МК. Для каждой платы задается свой экземпляр, используемый по умолчанию Co-authored-by: KLASSENTS <klassen@elron.tech> Co-committed-by: KLASSENTS <klassen@elron.tech>
101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
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#ifndef TwoWire_h
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#define TwoWire_h
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#include "Stream.h"
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#include "Arduino.h"
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extern "C"
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{
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#include "utility/twi.h"
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}
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#define BUFFER_LENGTH 32
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// WIRE_HAS_END means Wire has end()
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#define WIRE_HAS_END 1
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class TwoWire : public Stream
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{
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private:
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WireHandler_TypeDef wireHandler;
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uint8_t rxBuffer[BUFFER_LENGTH];
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uint8_t rxBufferIndex = 0;
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uint8_t rxBufferLength = 0;
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uint8_t txAddress = 0; // 7 bits without shift
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uint8_t txBuffer[BUFFER_LENGTH];
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uint8_t txBufferIndex = 0;
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uint8_t txBufferLength = 0;
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uint8_t transmitting = 0;
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uint8_t slaveAddress = 0;
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void (*user_onRequest)(void);
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void (*user_onReceive)(int numBytes);
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void onRequestService(void);
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void onReceiveService(uint8_t* inBytes, int numBytes);
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static inline void staticOnRequestService(void* instance)
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{
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// cast pointer to TwoWire type and call method
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static_cast<TwoWire*>(instance)->onRequestService();
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}
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static inline void staticOnReceiveService(void* instance, uint8_t* inBytes, int numBytes)
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{
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static_cast<TwoWire*>(instance)->onReceiveService(inBytes, numBytes);
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}
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public:
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inline TwoWire(uint8_t num)
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{
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wireHandler.i2c_num = (num < I2C_COMMON_QTY) ? num : 1; // I2C1 by default
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wireHandler.instance = this;
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// save pointers to static functions to wire handler
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wireHandler.onSlaveTransmit = &TwoWire::staticOnRequestService;
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wireHandler.onSlaveReceive = &TwoWire::staticOnReceiveService;
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}
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WireHandler_TypeDef* getHandler()
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{
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return &wireHandler;
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}
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void begin();
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void begin(uint8_t);
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void begin(int);
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void end();
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void setClock(uint32_t frequency);
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void beginTransmission(uint8_t address);
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void beginTransmission(int address);
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uint8_t endTransmission(void);
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uint8_t endTransmission(uint8_t sendStop);
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uint8_t requestFrom(uint8_t address, uint8_t quantity);
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uint8_t requestFrom(uint8_t address, uint8_t quantity, uint8_t sendStop);
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uint8_t requestFrom(uint8_t address, uint8_t quantity, uint32_t iaddress, uint8_t isize, uint8_t sendStop);
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uint8_t requestFrom(int address, int quantity);
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uint8_t requestFrom(int address, int quantity, int sendStop);
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virtual int available(void);
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virtual int read(void);
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virtual int peek(void);
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virtual void flush(void);
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virtual size_t write(uint8_t data);
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virtual size_t write(const uint8_t * data, size_t quantity);
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inline size_t write(unsigned long n) { return write((uint8_t)n); }
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inline size_t write(long n) { return write((uint8_t)n); }
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inline size_t write(unsigned int n) { return write((uint8_t)n); }
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inline size_t write(int n) { return write((uint8_t)n); }
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using Print::write;
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void onReceive( void (*)(int) );
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void onRequest( void (*)(void) );
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};
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extern TwoWire Wire1;
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#if I2C_COMMON_QTY>1
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extern TwoWire Wire0;
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#endif
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// default interface
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extern TwoWire& Wire;
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#endif
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