I2C peripheral context: instance, HAL handle, pins, interrupts and slave buffers. More...

#include <twi.h>

Public Attributes
I2C_TypeDef *	i2c
	I2C peripheral instance.

I2C_HandleTypeDef	handle
	HAL handle of the I2C peripheral.

void *	__this
	Pointer to the owning TwoWire instance, used by the slave callbacks.

PinName	sda
	SDA pin.

PinName	scl
	SCL pin.

IRQn_Type	irq
	Event interrupt number.

IRQn_Type	irqER
	Error interrupt number.

volatile int	slaveRxNbData
	Number of accumulated bytes received in slave mode.

void(*	i2c_onSlaveReceive )(i2c_t *)
	Callback called when the slave has received data from the master.

void(*	i2c_onSlaveTransmit )(i2c_t *)
	Callback called when the master requests data from the slave.

volatile uint8_t	i2cTxRxBuffer [I2C_TXRX_BUFFER_SIZE]
	Slave Tx/Rx buffer, I2C_TXRX_BUFFER_SIZE bytes.

volatile uint8_t	i2cTxRxBufferSize
	Number of bytes currently stored in i2cTxRxBuffer for transmission.

volatile uint8_t	slaveMode
	Current slave mode: SLAVE_MODE_TRANSMIT, SLAVE_MODE_RECEIVE or SLAVE_MODE_LISTEN.

bool	isMaster
	true when the peripheral is configured as master, false as slave.

bool	generalCall
	true to enable the general call address (slave mode).

bool	NoStretchMode
	true to disable clock stretching (slave mode).

Detailed Description

I2C peripheral context: instance, HAL handle, pins, interrupts and slave buffers.

Note: The first two members (i2c and handle) must be kept first for the get_i2c_obj() function to work as expected.

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

Public Attributes