SoftwareI2c Class Reference

Class implements i2c software interface for AVR platform. More...

#include <i2c_embedded.h>

Public Member Functions
	SoftwareI2c (int8_t scl=-1, int8_t sda=-1, uint8_t sa=0x00)
	Creates i2c interface instance for SDL Emulation mode. More...
void	begin ()
	Initializes i2c interface.
void	end ()
	Closes i2c interface.
void	start ()
	Starts communication with slave device.
void	start (uint8_t sa, bool read_op=false)
	Starts communication with slave device. More...
void	stop ()
	Ends communication with slave display.
void	send (uint8_t data)
	Sends byte to slave device. More...
uint8_t	receive (bool last=false)
	Receives byte from remote device. More...
void	sendBuffer (const uint8_t *buffer, uint16_t size)
	Sends bytes to SSD1306 device. More...
void	setAddr (uint8_t addr)
	Sets i2c address for communication This API is required for some led displays having multiple i2c addresses for different types of data. More...

Detailed Description

Class implements i2c software interface for AVR platform.

Definition at line 38 of file i2c_embedded.h.

Constructor & Destructor Documentation

SoftwareI2c()

SoftwareI2c::SoftwareI2c ( int8_t  scl = -1, int8_t  sda = -1, uint8_t  sa = 0x00  )

explicit

Creates i2c interface instance for SDL Emulation mode.

Parameters

scl	pin number to use as clock
sda	pin number to use as data line
sa	i2c address of the display (7 bits)

Member Function Documentation

receive()

uint8_t SoftwareI2c::receive

(

bool

last = false

)

Receives byte from remote device.

Parameters

last	set to true, if last byte is requested from i2c slave

Returns

byte read from slave device

send()

void SoftwareI2c::send

(

uint8_t

data

)

Sends byte to slave device.

Parameters

data	- byte to send

sendBuffer()

void SoftwareI2c::sendBuffer	(	const uint8_t *	buffer,
		uint16_t	size
	)

Sends bytes to SSD1306 device.

Sends bytes to SSD1306 device. This functions gives ~ 30% performance increase than ssd1306_intf.send.

Parameters

buffer	- bytes to send
size	- number of bytes to send

setAddr()

void SoftwareI2c::setAddr ( uint8_t  addr )

inline

Sets i2c address for communication This API is required for some led displays having multiple i2c addresses for different types of data.

Parameters

addr	i2c address to set (7 bits)

Definition at line 110 of file i2c_embedded.h.

start()

void SoftwareI2c::start	(	uint8_t	sa,
		bool	read_op = false
	)

Starts communication with slave device.

Parameters

sa	slave address (low 7 bits)
read_op	set it to true, if read operation is requested, otherwise set it to false

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The documentation for this class was generated from the following file:

• src/lcd_hal/avr/i2c_embedded.h