da5884920a
1. modified the HTS221: removed magic numbers, added a sensor_tempnhumi_t struct to accommodate temperature and humidity data 2. added .h and .c files for LIS3MDL magnetic sensor 3. added .h and .c files for LPS22HB pressure sensor 3. added IAR (EWARM) project for lorawan example 4. added bsp.c and bsp.h to manager the sensors
69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
/**
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******************************************************************************
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* @file LPS22HB.h
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* @author jieranzhi (the developer)
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* @update 2020/03/23 19:00 CST
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* @brief This file contains basic functions prototypes and pre-definitions
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* of the register addresses
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******************************************************************************
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* @attention
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*
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* 1. the temperature sensor embedded in the LPS22HB is intended to be embedded
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* temperature compensation. Therefore, in this file we DO NOT include the
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* temperature output
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*
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* 2. on the P-NUCLEO-LRWAN3, the SDO/SA0 pad is connected to voltage supply(
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* via a resistor), LSb is ¡®1¡¯ (address 1011101b)
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*
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* 3. for more information, please refer to the datasheet
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* (https://www.st.com/resource/en/datasheet/dm00140895.pdf)
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*
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******************************************************************************
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*/
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#ifndef _LPS22HB_H_
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#define _LPS22HB_H_
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#include <stm32l0xx_hal.h>
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/* Registers -----------------------------------------------------------------*/
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#define LPS22HB_ADDR_WR 0xBA
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#define LPS22HB_ADDR_RD 0xBB
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#define LPS22HB_CTRL_REG1 0x10
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#define LPS22HB_CTRL_REG2 0x11
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#define LPS22HB_CTRL_REG3 0x12
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#define LPS22HB_RES_CONF_REG 0x1A
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#define LPS22HB_STATUS_REG 0x27
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#define LPS22HB_PRESS_OUT_XL 0x28
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#define LPS22HB_PRESS_OUT_L 0x29
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#define LPS22HB_PRESS_OUT_H 0x2A
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/* Enumeration ---------------------------------------------------------------*/
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/**
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* @brief STATUS structures definition
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*/
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typedef enum
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{
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LPS22HB_T_OR = 0x20, /*!< temperature overrun */
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LPS22HB_P_OR = 0x10, /*!< pressure overrun */
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LPS22HB_T_DA = 0x02, /*!< new temperature data available */
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LPS22HB_P_DA = 0x01, /*!< new pressure data available */
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}LPS22HB_StatusTypeDef;
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/**
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* @brief pressure sensor structures definition
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*/
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typedef struct
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{
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uint16_t sensitivity; // sensitivity per fullscale
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uint32_t pressure; // X-magnetic value in LSB
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}sensor_press_t;
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/* Functions -----------------------------------------------------------------*/
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void LPS22HB_Init(void);
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uint8_t LPS22HB_Get_Press(sensor_press_t* press_sensor);
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#endif /* _LPS22HB_H_ */
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