Public function

Functions
void	pressure4_cfg_setup (pressure4_cfg_t *cfg)
	Config Object Initialization function.
err_t	pressure4_init (pressure4_t *ctx, pressure4_cfg_t *cfg)
	Initialization function.
void	pressure4_default_cfg (pressure4_t *ctx)
	Click Default Configuration function.
void	pressure4_generic_write (pressure4_t *ctx, uint8_t reg, uint8_t *data_buf, uint8_t len)
	Generic write function.
void	pressure4_generic_read (pressure4_t *ctx, uint8_t reg, uint8_t *data_buf, uint8_t len)
	Generic read function.
void	pressure4_write_reg_8_bit (pressure4_t *ctx, uint8_t w_reg, uint8_t w_data)
	8 bit writing function.
uint8_t	pressure4_read_reg_8_bit (pressure4_t *ctx, uint8_t r_reg)
	8 bit reading function.
uint8_t	pressure4_read_id (pressure4_t *ctx)
	Read ID function.
uint8_t	pressure4_get_status (pressure4_t *ctx)
	Get status function.
float	pressure4_get_temperature (pressure4_t *ctx)
	Get temperature function.
float	pressure4_get_pressure (pressure4_t *ctx)
	Get pressure function.

Detailed Description

Function Documentation

pressure4_cfg_setup()

void pressure4_cfg_setup

(

pressure4_cfg_t *

cfg

)

Config Object Initialization function.

Parameters

cfg	Click configuration structure.

This function initializes click configuration structure to init state.

Note

All used pins will be set to unconnected state.

pressure4_default_cfg()

void pressure4_default_cfg

(

pressure4_t *

ctx

)

Click Default Configuration function.

Parameters

ctx	Click object.

This function executes default configuration for Pressure 4 click.

pressure4_generic_read()

void pressure4_generic_read	(	pressure4_t *	ctx,
		uint8_t	reg,
		uint8_t *	data_buf,
		uint8_t	len )

Generic read function.

Parameters

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

This function reads data from the desired register.

pressure4_generic_write()

void pressure4_generic_write	(	pressure4_t *	ctx,
		uint8_t	reg,
		uint8_t *	data_buf,
		uint8_t	len )

Generic write function.

Parameters

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

This function writes data to the desired register.

pressure4_get_pressure()

float pressure4_get_pressure

(

pressure4_t *

ctx

)

Get pressure function.

Parameters

ctx	Click object.

This function returning the calculated value of the pressure.

pressure4_get_status()

uint8_t pressure4_get_status

(

pressure4_t *

ctx

)

Get status function.

Parameters

ctx	Click object.

This function returning the state of the status register.

pressure4_get_temperature()

float pressure4_get_temperature

(

pressure4_t *

ctx

)

Get temperature function.

Parameters

ctx	Click object.

This function returning the calculated temperature value.

pressure4_init()

err_t pressure4_init	(	pressure4_t *	ctx,
		pressure4_cfg_t *	cfg )

Initialization function.

Parameters

ctx	Click object.
cfg	Click configuration structure.

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

pressure4_read_id()

uint8_t pressure4_read_id

(

pressure4_t *

ctx

)

Read ID function.

Parameters

ctx	Click object.

This function returns the contents of the chipid register.

pressure4_read_reg_8_bit()

uint8_t pressure4_read_reg_8_bit	(	pressure4_t *	ctx,
		uint8_t	r_reg )

8 bit reading function.

Parameters

ctx	Click object.
r_reg	Register address.

This function reads 8 bit to Pressure 4 registers.

pressure4_write_reg_8_bit()

void pressure4_write_reg_8_bit	(	pressure4_t *	ctx,
		uint8_t	w_reg,
		uint8_t	w_data )

8 bit writing function.

Parameters

ctx	Click object.
w_reg	Register address.
w_data	Data to be written.

This function writes 8 bit to Pressure 4 registers.