Public function

Functions
void	i2cmux_cfg_setup (i2cmux_cfg_t *cfg)
	Config Object Initialization function.
I2CMUX_RETVAL	i2cmux_init (i2cmux_t *ctx, i2cmux_cfg_t *cfg)
	Initialization function.
void	i2cmux_generic_write (i2cmux_t *ctx, uint8_t reg, uint8_t *data_buf, uint8_t len)
	Generic write function.
void	i2cmux_generic_read (i2cmux_t *ctx, uint8_t reg, uint8_t *data_buf, uint8_t len)
	Generic read function.
void	i2cmux_hw_reset (i2cmux_t *ctx)
	Hardware reset function.
void	i2cmux_write_cmd (i2cmux_t *ctx, uint8_t tx_data)
	Write command function.
uint8_t	i2cmux_read_cmd (i2cmux_t *ctx)
	Read command function.
void	i2cmux_set_channel (i2cmux_t *ctx, uint8_t channel, uint8_t ch_slave_address)
	Set channel function.

Detailed Description

Function Documentation

i2cmux_cfg_setup()

void i2cmux_cfg_setup

(

i2cmux_cfg_t *

cfg

)

Config Object Initialization function.

Parameters

cfg	Click configuration structure.

@description This function initializes click configuration structure to init state.

Note

All used pins will be set to unconnected state.

i2cmux_generic_read()

void i2cmux_generic_read	(	i2cmux_t *	ctx,
		uint8_t	reg,
		uint8_t *	data_buf,
		uint8_t	len )

Generic read function.

Parameters

ctx	Click object.
reg	Register address.
data_buf	Output data buf.
len	Number of the bytes to be read.

@description This function reads data from the desired register.

i2cmux_generic_write()

void i2cmux_generic_write	(	i2cmux_t *	ctx,
		uint8_t	reg,
		uint8_t *	data_buf,
		uint8_t	len )

Generic write function.

Parameters

ctx	Click object.
reg	Register address.
data_buf	Data buf to be written.
len	Number of the bytes in data buf.

@description This function writes data to the desired register.

i2cmux_hw_reset()

void i2cmux_hw_reset

(

i2cmux_t *

ctx

)

Hardware reset function.

Parameters

ctx	Click object.

@description This function resets I2C MUX 2 click board by clearing the RST pin for 100ms.

i2cmux_init()

I2CMUX_RETVAL i2cmux_init	(	i2cmux_t *	ctx,
		i2cmux_cfg_t *	cfg )

Initialization function.

Parameters

ctx	Click object.
cfg	Click configuration structure.

@description This function initializes all necessary pins and peripherals used for this click.

i2cmux_read_cmd()

uint8_t i2cmux_read_cmd

(

i2cmux_t *

ctx

)

Read command function.

Parameters

ctx	Click object.

@description This function executes read command from the TCA9546A Low Voltage 4-Channel I2C and SMBus Switch on the I2C MUX click board.

i2cmux_set_channel()

void i2cmux_set_channel	(	i2cmux_t *	ctx,
		uint8_t	channel,
		uint8_t	ch_slave_address )

Set channel function.

Parameters

ctx	Click object.
channel	8-bit register address.
ch_slave_address	Pointer to the data to be written.

@description This function sets channel of the I2C MUX click board.

i2cmux_write_cmd()

void i2cmux_write_cmd	(	i2cmux_t *	ctx,
		uint8_t	tx_data )

Write command function.

Parameters

ctx	Click object.
tx_data	8-bit data to be transmitted.

@description This function executes writes command to the TCA9546A Low Voltage 4-Channel I2C and SMBus Switch on the I2C MUX click board.