HTS221 MEMS interface module header. More...

#include "ex_hygrometer.h"
#include "ex_thermometer.h"

Data Structures
struct	HTS221Config
	HTS221 configuration structure. More...
struct	HTS221VMT
	`HTS221` virtual methods table. More...
struct	HTS221Driver
	HTS221 2-axis hygrometer/thermometer class. More...

Macros
#define	hts221HygrometerGetAxesNumber(devp)
	Return the number of axes of the BaseHygrometer.
#define	hts221HygrometerReadRaw(devp, axes)
	Retrieves raw data from the BaseHygrometer.
#define	hts221HygrometerReadCooked(devp, axes)
	Retrieves cooked data from the BaseHygrometer.
#define	hts221HygrometerSetBias(devp, bp)
	Set bias values for the BaseHygrometer.
#define	hts221HygrometerResetBias(devp)
	Reset bias values for the BaseHygrometer.
#define	hts221HygrometerSetSensitivity(devp, sp)
	Set sensitivity values for the BaseHygrometer.
#define	hts221HygrometerResetSensitivity(devp)
	Reset sensitivity values for the BaseHygrometer.
#define	hts221ThermometerGetAxesNumber(devp)
	Return the number of axes of the BaseThermometer.
#define	hts221ThermometerReadRaw(devp, axes)
	Retrieves raw data from the BaseThermometer.
#define	hts221ThermometerReadCooked(devp, axes)
	Retrieves cooked data from the BaseThermometer.
#define	hts221ThermometerSetBias(devp, bp)
	Set bias values for the BaseThermometer.
#define	hts221ThermometerResetBias(devp)
	Reset bias values for the BaseThermometer.
#define	hts221ThermometerSetSensitivity(devp, sp)
	Set sensitivity values for the BaseThermometer.
#define	hts221ThermometerResetSensitivity(devp)
	Reset sensitivity values for the BaseThermometer.
Version identification
#define	EX_HTS221_VERSION "1.1.2"
	HTS221 driver version string.
#define	EX_HTS221_MAJOR 1
	HTS221 driver version major number.
#define	EX_HTS221_MINOR 1
	HTS221 driver version minor number.
#define	EX_HTS221_PATCH 2
	HTS221 driver version patch number.

#define	HTS221_HYGRO_NUMBER_OF_AXES 1U
	HTS221 hygrometer subsystem characteristics.
#define	HTS221_HYGRO_SENS 0.00390625f
#define	HTS221_HYGRO_BIAS 0.0f

#define	HTS221_THERMO_NUMBER_OF_AXES 1U
	HTS221 thermometer subsystem characteristics.
#define	HTS221_THERMO_SENS 0.0015625f
#define	HTS221_THERMO_BIAS 0.0f
HTS221 communication interfaces related bit masks
#define	HTS221_DI_MASK 0xFF
#define	HTS221_DI(n)
#define	HTS221_AD_MASK 0x3F
#define	HTS221_AD(n)
#define	HTS221_MS (1 << 6)
#define	HTS221_RW (1 << 7)
#define	HTS221_SUB_MS (1 << 7)
#define	HTS221_SAD 0x5F
HTS221 register addresses
#define	HTS221_AD_WHO_AM_I 0x0F
#define	HTS221_AD_AV_CONF 0x10
#define	HTS221_AD_CTRL_REG1 0x20
#define	HTS221_AD_CTRL_REG2 0x21
#define	HTS221_AD_CTRL_REG3 0x22
#define	HTS221_AD_STATUS_REG 0x27
#define	HTS221_AD_HUMIDITY_OUT_L 0x28
#define	HTS221_AD_HUMIDITY_OUT_H 0x29
#define	HTS221_AD_TEMP_OUT_L 0x2A
#define	HTS221_AD_TEMP_OUT_H 0x2B
#define	HTS221_AD_CALIB_0 0x30
#define	HTS221_AD_CALIB_1 0x31
#define	HTS221_AD_CALIB_2 0x32
#define	HTS221_AD_CALIB_3 0x33
#define	HTS221_AD_CALIB_4 0x34
#define	HTS221_AD_CALIB_5 0x35
#define	HTS221_AD_CALIB_6 0x36
#define	HTS221_AD_CALIB_7 0x37
#define	HTS221_AD_CALIB_8 0x38
#define	HTS221_AD_CALIB_9 0x39
#define	HTS221_AD_CALIB_A 0x3A
#define	HTS221_AD_CALIB_B 0x3B
#define	HTS221_AD_CALIB_C 0x3C
#define	HTS221_AD_CALIB_D 0x3D
#define	HTS221_AD_CALIB_E 0x3E
#define	HTS221_AD_CALIB_F 0x3F
HTS221_CTRL_REG1 register bits definitions
#define	HTS221_CTRL_REG1_MASK 0x87
#define	HTS221_CTRL_REG1_ODR0 (1 << 0)
#define	HTS221_CTRL_REG1_ODR1 (1 << 1)
#define	HTS221_CTRL_REG1_BDU (1 << 2)
#define	HTS221_CTRL_REG1_PD (1 << 7)
HTS221_CTRL_REG2 register bits definitions
#define	HTS221_CTRL_REG2_MASK 0x83
#define	HTS221_CTRL_REG2_ONE_SHOT (1 << 0)
#define	HTS221_CTRL_REG2_HEATER (1 << 1)
#define	HTS221_CTRL_REG2_BOOT (1 << 7)
HTS221_CTRL_REG3 register bits definitions
#define	HTS221_CTRL_REG3_MASK 0xC4
#define	HTS221_CTRL_REG3_DRDY (1 << 2)
#define	HTS221_CTRL_REG3_PP_OD (1 << 6)
#define	HTS221_CTRL_REG3_INT_H_L (1 << 7)
Configuration options
#define	HTS221_USE_SPI FALSE
	HTS221 SPI interface switch.
#define	HTS221_SHARED_SPI FALSE
	HTS221 shared SPI switch.
#define	HTS221_USE_I2C TRUE
	HTS221 I2C interface switch.
#define	HTS221_SHARED_I2C FALSE
	HTS221 shared I2C switch.
#define	HTS221_USE_ADVANCED FALSE
	HTS221 advanced configurations switch.

Functions
void	hts221ObjectInit (HTS221Driver *devp)
	Initializes an instance.
void	hts221Start (HTS221Driver devp, const HTS221Config config)
	Configures and activates HTS221 Complex Driver peripheral.
void	hts221Stop (HTS221Driver *devp)
	Deactivates the HTS221 Complex Driver peripheral.

HTS221 data structures and types.
#define	_hts221_methods_alone
	`HTS221` specific methods.
#define	_hts221_methods
	`HTS221` specific methods with inherited ones.
#define	_hts221_data
	`HTS221Driver` specific data.
enum	hts221_odr_t { HTS221_ODR_ONE_SHOT = 0x00 , HTS221_ODR_1HZ = 0x01 , HTS221_ODR_7HZ = 0x02 , HTS221_ODR_12P5HZ = 0x03 }
	HTS221 output data rate and bandwidth. More...
enum	hts221_avgh_t { HTS221_AVGH_4 = 0x00 , HTS221_AVGH_8 = 0x01 , HTS221_AVGH_16 = 0x02 , HTS221_AVGH_32 = 0x03 , HTS221_AVGH_64 = 0x04 , HTS221_AVGH_128 = 0x05 , HTS221_AVGH_256 = 0x06 , HTS221_AVGH_512 = 0x07 }
	HTS221 humidity resolution. More...
enum	hts221_avgt_t { HTS221_AVGT_2 = 0x00 , HTS221_AVGT_4 = 0x08 , HTS221_AVGT_8 = 0x10 , HTS221_AVGT_16 = 0x18 , HTS221_AVGT_32 = 0x20 , HTS221_AVGT_64 = 0x28 , HTS221_AVGT_128 = 0x30 , HTS221_AVGT_256 = 0x38 }
	HTS221 temperature resolution. More...
enum	hts221_bdu_t { HTS221_BDU_CONTINUOUS = 0x00 , HTS221_BDU_BLOCKED = 0x40 }
	HTS221 block data update. More...
enum	hts221_state_t { HTS221_UNINIT = 0 , HTS221_STOP = 1 , HTS221_READY = 2 }
	Driver state machine possible states. More...
typedef struct HTS221Driver	HTS221Driver
	Structure representing a HTS221 driver.

Detailed Description

HTS221 MEMS interface module header.

Definition in file hts221.h.

Data Structures

Macros

Functions

HTS221 data structures and types.

Detailed Description