Hello!
Tell me how to properly edit the library of the I2C bus in order to increase the receive-transmit buffer to 258 bytes.
The problem is that the description of the buffer size is an 8 bit variable:
I2C bufer up to 258 byte
Re: I2C bufer up to 258 byte
The rx & tx lengths all seem to be uint16_t and so it would seem that you just need to increase I2C_BUFFER_LENGTHThe problem is that the description of the buffer size is an 8 bit variable:
& I also believe that IDF CAN should be fixed.
Re: I2C bufer up to 258 byte
Simply changing I2C_BUFFER_LENGTH to 258 didn't work. Made the following changes (###VadimKHL):
But now the error appeared:
no matching function for call to 'TwoWire::writeTransmission(uint16_t&, uint16_t*, int, bool&)'
Please, help
Code: Select all
/*
TwoWire.h - TWI/I2C library for Arduino & Wiring
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts
Modified December 2014 by Ivan Grokhotkov (ivan@esp8266.com) - esp8266 support
Modified April 2015 by Hrsto Gochkov (ficeto@ficeto.com) - alternative esp8266 support
Modified November 2017 by Chuck Todd <stickbreaker on GitHub> to use ISR and increase stability.
*/
#ifndef TwoWire_h
#define TwoWire_h
#include <esp32-hal.h>
#include "freertos/FreeRTOS.h"
#include "freertos/queue.h"
#include "Stream.h"
#define STICKBREAKER 'V1.1.0'
#define I2C_BUFFER_LENGTH 258 // ###VadimKHL 128 -> 258.
typedef void(*user_onRequest)(void);
typedef void(*user_onReceive)(uint8_t*, int);
class TwoWire: public Stream
{
protected:
uint8_t num;
int8_t sda;
int8_t scl;
i2c_t * i2c;
uint16_t rxBuffer[I2C_BUFFER_LENGTH]; // ###VadimKHL: uint8_t -> uint16_t.
uint16_t rxIndex;
uint16_t rxLength;
uint16_t rxQueued; //@stickBreaker
uint16_t txBuffer[I2C_BUFFER_LENGTH]; // ###VadimKHL: uint8_t -> uint16_t.
uint16_t txIndex;
uint16_t txLength;
uint16_t txAddress;
uint16_t txQueued; //@stickbreaker
uint8_t transmitting;
/* slave Mode, not yet Stickbreaker
static user_onRequest uReq[2];
static user_onReceive uRcv[2];
void onRequestService(void);
void onReceiveService(uint8_t*, int);
*/
i2c_err_t last_error; // @stickBreaker from esp32-hal-i2c.h
uint16_t _timeOutMillis;
public:
TwoWire(uint8_t bus_num);
~TwoWire();
bool begin(int sda=-1, int scl=-1, uint32_t frequency=0); // returns true, if successful init of i2c bus
// calling will attemp to recover hung bus
void setClock(uint32_t frequency); // change bus clock without initing hardware
size_t getClock(); // current bus clock rate in hz
void setTimeOut(uint16_t timeOutMillis); // default timeout of i2c transactions is 50ms
uint16_t getTimeOut();
uint8_t lastError();
char * getErrorText(uint8_t err);
//@stickBreaker for big blocks and ISR model
i2c_err_t writeTransmission(uint16_t address, uint8_t* buff, uint16_t size, bool sendStop=true);
i2c_err_t readTransmission(uint16_t address, uint8_t* buff, uint16_t size, bool sendStop=true, uint32_t *readCount=NULL);
void beginTransmission(uint16_t address);
void beginTransmission(uint8_t address);
void beginTransmission(int address);
uint8_t endTransmission(bool sendStop);
uint8_t endTransmission(void);
uint8_t requestFrom(uint16_t address, uint16_t size, bool sendStop); // ###VadimKHL: uint8_t size -> uint16_t size
uint8_t requestFrom(uint16_t address, uint16_t size, uint8_t sendStop); // ###VadimKHL: uint8_t size -> uint16_t size
uint8_t requestFrom(uint16_t address, uint16_t size); // ###VadimKHL: uint8_t size -> uint16_t size
uint8_t requestFrom(uint8_t address, uint16_t size, uint8_t sendStop); // ###VadimKHL: uint8_t size -> uint16_t size
uint8_t requestFrom(uint8_t address, uint16_t size); // ###VadimKHL: uint8_t size -> uint16_t size
uint8_t requestFrom(int address, int size, int sendStop);
uint8_t requestFrom(int address, int size);
size_t write(uint8_t);
size_t write(const uint8_t *, size_t);
int available(void);
int read(void);
int peek(void);
void flush(void);
inline size_t write(const char * s)
{
return write((uint8_t*) s, strlen(s));
}
inline size_t write(unsigned long n)
{
return write((uint8_t)n);
}
inline size_t write(long n)
{
return write((uint8_t)n);
}
inline size_t write(unsigned int n)
{
return write((uint8_t)n);
}
inline size_t write(int n)
{
return write((uint8_t)n);
}
void onReceive( void (*)(int) );
void onRequest( void (*)(void) );
uint32_t setDebugFlags( uint32_t setBits, uint32_t resetBits);
bool busy();
};
extern TwoWire Wire;
extern TwoWire Wire1;
/*
V1.1.0 08JAN2019 Support CPU Clock frequency changes
V1.0.2 30NOV2018 stop returning I2C_ERROR_CONTINUE on ReSTART operations, regain compatibility with Arduino libs
V1.0.1 02AUG2018 First Fix after release, Correct ReSTART handling, change Debug control, change begin()
to a function, this allow reporting if bus cannot be initialized, Wire.begin() can be used to recover
a hung bus busy condition.
V0.2.2 13APR2018 preserve custom SCL,SDA,Frequency when no parameters passed to begin()
V0.2.1 15MAR2018 Hardware reset, Glitch prevention, adding destructor for second i2c testing
*/
#endif
no matching function for call to 'TwoWire::writeTransmission(uint16_t&, uint16_t*, int, bool&)'
Please, help
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