I2C MUX 7 Click Driver

API for configuring and manipulating I2C MUX 7 Click driver. More...

Topics
	I2C MUX 7 Settings
	Settings of I2C MUX 7 Click driver.
	I2C MUX 7 MikroBUS Map
	MikroBUS pin mapping of I2C MUX 7 Click driver.

Functions
void	i2cmux7_cfg_setup (i2cmux7_cfg_t *cfg)
	I2C MUX 7 configuration object setup function.
err_t	i2cmux7_init (i2cmux7_t *ctx, i2cmux7_cfg_t *cfg)
	I2C MUX 7 initialization function.
err_t	i2cmux7_set_channel (i2cmux7_t *ctx, uint8_t ch_sel, uint8_t ch_slave_addr)
	I2C MUX 7 set channel function.
err_t	i2cmux7_read_channel (i2cmux7_t *ctx, uint8_t *ch_sel)
	I2C MUX 7 read channel function.
void	i2cmux7_reset_device (i2cmux7_t *ctx)
	I2C MUX 7 reset device function.
err_t	i2cmux7_generic_write (i2cmux7_t *ctx, uint8_t reg, uint8_t *tx_buf, uint8_t tx_len)
	I2C MUX 7 I2C writing function.
err_t	i2cmux7_generic_read (i2cmux7_t *ctx, uint8_t reg, uint8_t *rx_buf, uint8_t rx_len)
	I2C MUX 7 I2C reading function.

Detailed Description

API for configuring and manipulating I2C MUX 7 Click driver.

Any initialization code needed for MCU to function properly. Do not remove this line or clock might not be set correctly.

Function Documentation

i2cmux7_cfg_setup()

void i2cmux7_cfg_setup

(

i2cmux7_cfg_t *

cfg

)

I2C MUX 7 configuration object setup function.

This function initializes click configuration structure to initial values.

Parameters

[out]

cfg

: Click configuration structure. See i2cmux7_cfg_t object definition for detailed explanation.

Returns

Nothing.

Note

The all used pins will be set to unconnected state.

i2cmux7_generic_read()

err_t i2cmux7_generic_read	(	i2cmux7_t *	ctx,
		uint8_t	reg,
		uint8_t *	rx_buf,
		uint8_t	rx_len )

I2C MUX 7 I2C reading function.

This function reads a desired number of data bytes starting from the selected register by using I2C serial interface.

Parameters

[in]	ctx	: Click context object. See i2cmux7_t object definition for detailed explanation.
[in]	reg	: Start register address.
[out]	rx_buf	: Output read data.
[in]	rx_len	: Number of bytes to be read.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

The device channel and slave address must be configured previously using i2cmux7_set_channel function.

i2cmux7_generic_write()

err_t i2cmux7_generic_write	(	i2cmux7_t *	ctx,
		uint8_t	reg,
		uint8_t *	tx_buf,
		uint8_t	tx_len )

I2C MUX 7 I2C writing function.

This function writes a desired number of data bytes starting from the selected register by using I2C serial interface.

Parameters

[in]	ctx	: Click context object. See i2cmux7_t object definition for detailed explanation.
[in]	reg	: Start register address.
[in]	tx_buf	: Data to be written.
[in]	tx_len	: Number of bytes to be written.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

The device channel and slave address must be configured previously using i2cmux7_set_channel function.

i2cmux7_init()

err_t i2cmux7_init	(	i2cmux7_t *	ctx,
		i2cmux7_cfg_t *	cfg )

I2C MUX 7 initialization function.

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

Parameters

[out]	ctx	: Click context object. See i2cmux7_t object definition for detailed explanation.
[in]	cfg	: Click configuration structure. See i2cmux7_cfg_t object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error.

See #err_t definition for detailed explanation.

Note

None.

i2cmux7_read_channel()

err_t i2cmux7_read_channel	(	i2cmux7_t *	ctx,
		uint8_t *	ch_sel )

I2C MUX 7 read channel function.

This function reads the currently selected channel value.

Parameters

[in]	ctx	: Click context object. See i2cmux7_t object definition for detailed explanation.
[out]	ch_sel	: Channel selection bit mask.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

None.

i2cmux7_reset_device()

void i2cmux7_reset_device

(

i2cmux7_t *

ctx

)

I2C MUX 7 reset device function.

This function resets the device by toggling the RST pin state.

Parameters

[in]

ctx

: Click context object. See i2cmux7_t object definition for detailed explanation.

Returns

None.

Note

None.

i2cmux7_set_channel()

err_t i2cmux7_set_channel	(	i2cmux7_t *	ctx,
		uint8_t	ch_sel,
		uint8_t	ch_slave_addr )

I2C MUX 7 set channel function.

This function sets the desired channel active and configures its slave address.

Parameters

[in]	ctx	: Click context object. See i2cmux7_t object definition for detailed explanation.
[in]	ch_sel	: Channel selection bit mask.
[in]	ch_slave_addr	: 7-bit slave address of the device connected to the channel.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

None.