Public function

Functions
void	i2cmux3_cfg_setup (i2cmux3_cfg_t *cfg)
	Config Object Initialization function.
I2CMUX3_RETVAL	i2cmux3_init (i2cmux3_t *ctx, i2cmux3_cfg_t *cfg)
	Initialization function.
void	i2cmux3_generic_write (i2cmux3_t *ctx, uint8_t reg, uint8_t *data_buf, uint8_t len)
	Generic write function.
void	i2cmux3_generic_read (i2cmux3_t *ctx, uint8_t reg, uint8_t *data_buf, uint8_t len)
	Generic read function.
void	i2cmux3_write_ctl (i2cmux3_t *ctx, uint8_t wr_data)
	Write Control Register function.
uint8_t	i2cmux3_read_ctl (i2cmux3_t *ctx)
	Read Control Register function.
void	i2cmux3_ch_sel (i2cmux3_t *ctx, uint8_t sel_ch)
	Select Channel function.
void	i2cmux3_wr_slv (i2cmux3_t *ctx, uint8_t slv_sel_adr, uint8_t reg, uint8_t *p_wr_data, uint8_t n_bytes)
	Slave Device Write function.
void	i2cmux3_rd_slv (i2cmux3_t *ctx, uint8_t slv_sel_adr, uint8_t reg, uint8_t *p_rd_data, uint8_t n_bytes)
	Slave Device Read function.
void	i2cmux3_dev_enable (i2cmux3_t *ctx, uint8_t stat)
	Device enable function.
void	i2cmux3_hw_rst (i2cmux3_t *ctx)
	Hardware reset function.

Detailed Description

Function Documentation

i2cmux3_cfg_setup()

void i2cmux3_cfg_setup

(

i2cmux3_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.

i2cmux3_ch_sel()

void i2cmux3_ch_sel	(	i2cmux3_t *	ctx,
		uint8_t	sel_ch )

Select Channel function.

Parameters

ctx	Click object.
sel_ch	8-bit data ranging from 0 to 7 that defines channel

Function is used to select communication channel.

Note

User can use values ranging from 0 to 7 in order to select wanted channel.

i2cmux3_dev_enable()

void i2cmux3_dev_enable	(	i2cmux3_t *	ctx,
		uint8_t	stat )

Device enable function.

Parameters

ctx	Click object.
stat	value defines state of the device '1' Device enabled '0' Device disabled

Function is used to enable or disable the device.

i2cmux3_generic_read()

void i2cmux3_generic_read	(	i2cmux3_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.

i2cmux3_generic_write()

void i2cmux3_generic_write	(	i2cmux3_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.

i2cmux3_hw_rst()

void i2cmux3_hw_rst

(

i2cmux3_t *

ctx

)

Hardware reset function.

Parameters

ctx	Click object.

Function is used to perform hardware reset of the I2C MUX 4 click board.

Note

Function holds two 100 milliseconds delay.

i2cmux3_init()

I2CMUX3_RETVAL i2cmux3_init	(	i2cmux3_t *	ctx,
		i2cmux3_cfg_t *	cfg )

Initialization function.

Parameters

i2cmux3	Click object.
cfg	Click configuration structure.

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

i2cmux3_rd_slv()

void i2cmux3_rd_slv	(	i2cmux3_t *	ctx,
		uint8_t	slv_sel_adr,
		uint8_t	reg,
		uint8_t *	p_rd_data,
		uint8_t	n_bytes )

Slave Device Read function.

Parameters

ctx	Click object.
slv_sel_adr	I2C address of the connected slave device
reg	8-bit register address
p_rd_data	pointer to the data to be read
n_bytes	number of bytes to be written

Function is used to read a sequential data starting from the targeted 8-bit register address of the device connected to the desired channel of the I2C MUX 3 click board.

i2cmux3_read_ctl()

uint8_t i2cmux3_read_ctl

(

i2cmux3_t *

ctx

)

Read Control Register function.

Parameters

ctx	Click object.

Returns

8-bit content of control register

Function is used to read from TCA9548A's control register.

i2cmux3_wr_slv()

void i2cmux3_wr_slv	(	i2cmux3_t *	ctx,
		uint8_t	slv_sel_adr,
		uint8_t	reg,
		uint8_t *	p_wr_data,
		uint8_t	n_bytes )

Slave Device Write function.

Parameters

ctx	Click object.
slv_sel_adr	I2C address of the connected slave device
reg	8-bit register address
p_wr_data	pointer to the data to be written
n_bytes	number of bytes to be written

Function is used to write a sequential data starting from the targeted 8-bit register address of the device connected to the desired channel of the I2C MUX 3 click board.

i2cmux3_write_ctl()

void i2cmux3_write_ctl	(	i2cmux3_t *	ctx,
		uint8_t	wr_data )

Write Control Register function.

Parameters

ctx	Click object.
wr_data	8-bit input data

Function is used to write to TCA9548A's control register.