Manuel Caballero
/
BMP085
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Diff: BMP085.h
- Revision:
- 1:01aeefb5f4cf
- Parent:
- 0:9e768970b8b2
- Child:
- 2:34a32898cd23
--- a/BMP085.h Fri Aug 25 10:31:24 2017 +0000
+++ b/BMP085.h Fri Aug 25 13:30:28 2017 +0000
@@ -0,0 +1,185 @@
+/**
+ * @brief BMP085.h
+ * @details Digital pressure sensor.
+ * Header file.
+ *
+ *
+ * @return NA
+ *
+ * @author Manuel Caballero
+ * @date 25/August/2017
+ * @version 25/August/2017 The ORIGIN
+ * @pre NaN.
+ * @warning NaN
+ * @pre This code belongs to AqueronteBlog ( http://unbarquero.blogspot.com ).
+ */
+#ifndef BMP085_H
+#define BMP085_H
+
+#include "mbed.h"
+
+
+/*!
+ Library for the BMP085 Digital Pressure Sensor.
+*/
+class BMP085
+{
+public:
+ /**
+ * @brief DEFAULT ADDRESSES
+ */
+ typedef enum {
+ BMP085_ADDRESS = 0x77
+ } BMP085_address_t;
+
+
+ /**
+ * @brief CALIBRATION COEFFICIENTS
+ */
+#define BMP085_AC1_MSB 0xAA /*!< MSB AC1 coefficient */
+#define BMP085_AC1_LSB 0xAB /*!< LSB AC1 coefficient */
+#define BMP085_AC2_MSB 0xAC /*!< MSB AC2 coefficient */
+#define BMP085_AC2_LSB 0xAD /*!< LSB AC2 coefficient */
+#define BMP085_AC3_MSB 0xAE /*!< MSB AC3 coefficient */
+#define BMP085_AC3_LSB 0xAF /*!< LSB AC3 coefficient */
+#define BMP085_AC4_MSB 0xB0 /*!< MSB AC4 coefficient */
+#define BMP085_AC4_LSB 0xB1 /*!< LSB AC4 coefficient */
+#define BMP085_AC5_MSB 0xB2 /*!< MSB AC5 coefficient */
+#define BMP085_AC5_LSB 0xB3 /*!< LSB AC5 coefficient */
+#define BMP085_AC6_MSB 0xB4 /*!< MSB AC6 coefficient */
+#define BMP085_AC6_LSB 0xB5 /*!< LSB AC6 coefficient */
+#define BMP085_B1_MSB 0xB6 /*!< MSB B1 coefficient */
+#define BMP085_B1_LSB 0xB7 /*!< LSB B1 coefficient */
+#define BMP085_B2_MSB 0xB8 /*!< MSB B2 coefficient */
+#define BMP085_B2_LSB 0xB9 /*!< LSB B2 coefficient */
+#define BMP085_MB_MSB 0xBA /*!< MSB MB coefficient */
+#define BMP085_MB_LSB 0xBB /*!< LSB MB coefficient */
+#define BMP085_MC_MSB 0xBC /*!< MSB MC coefficient */
+#define BMP085_MC_LSB 0xBD /*!< LSB MC coefficient */
+#define BMP085_MD_MSB 0xBE /*!< MSB MD coefficient */
+#define BMP085_MD_LSB 0xBF /*!< LSB MD coefficient */
+
+
+ /**
+ * @brief REGISTERS MAP
+ */
+#define BMP085_CONTROL 0xF4 /*!< Control register */
+
+
+
+ /* Commands Registers */
+ /**
+ * @brief TEMPERATURE
+ */
+#define BMP085_TRIGGER_TEMPERATURE 0x2E /*!< Trigger a new Temperature measurement */
+#define BMP085_READ_TEMPERATURE 0xF6 /*!< Read Temperature */
+
+ /* Commands Registers */
+ /**
+ * @brief PRESSURE
+ */
+#define BMP085_TRIGGER_PRESSURE 0x34 /*!< Trigger a new Pressure measurement */
+#define BMP085_READ_PRESSURE 0xF6 /*!< Read Pressure */
+
+ typedef enum {
+ PRESSURE_ULTRA_LOW_POWER_MODE = 0, /*!< Pressure: Ultra low power mode. */
+ PRESSURE_STANDARD_MODE = 1, /*!< Pressure: Standard mode. */
+ PRESSURE_HIGH_RESOLUTION_MODE = 2, /*!< Pressure: High resolution mode. */
+ PRESSURE_ULTRA_HIGH_RES_MODE = 3 /*!< Pressure: Ultra high resolution mode. */
+ } BMP085_pressure_osrs_t;
+
+
+
+
+#ifndef VECTOR_STRUCT_H
+#define VECTOR_STRUCT_H
+ typedef struct {
+ int16_t AC1;
+ int16_t AC2;
+ int16_t AC3;
+ uint16_t AC4;
+ uint16_t AC5;
+ uint16_t AC6;
+ int16_t B1;
+ int16_t B2;
+ int16_t MB;
+ int16_t MC;
+ int16_t MD;
+ } Vector_cal_coeff_t;
+
+
+ typedef struct {
+ int16_t UT_Temperature;
+ } Vector_temp_f;
+
+ typedef struct {
+ int32_t UP_Pressure;
+ } Vector_pressure_f;
+
+ typedef struct {
+ int16_t Temperature;
+ int32_t Pressure;
+ } Vector_compensated_data_f;
+#endif
+
+
+ /**
+ * @brief INTERNAL CONSTANTS
+ */
+ typedef enum {
+ BMP085_SUCCESS = 0,
+ BMP085_FAILURE = 1,
+ I2C_SUCCESS = 0 /*!< I2C communication was fine */
+ } BMP085_status_t;
+
+
+
+
+ /** Create an BMP085 object connected to the specified I2C pins.
+ *
+ * @param sda I2C data pin
+ * @param scl I2C clock pin
+ * @param addr I2C slave address
+ * @param freq I2C frequency in Hz.
+ */
+ BMP085 ( PinName sda, PinName scl, uint32_t addr, uint32_t freq );
+
+ /** Delete BMP085 object.
+ */
+ ~BMP085();
+
+ /** It gets the calibration coefficients.
+ */
+ BMP085_status_t BMP085_GetCalibrationCoefficients ( Vector_cal_coeff_t* myCalCoeff );
+
+ /** It triggers a new temperature mesurement.
+ */
+ BMP085_status_t BMP085_TriggerTemperature ( void );
+
+ /** It reads the raw temperature value.
+ */
+ BMP085_status_t BMP085_ReadRawTemperature ( Vector_temp_f* myRawTemperature );
+
+ /** It reads the compensated/true temperature. NOT RECOMMENDED, use BMP085_CalculateCompensated_Temperature_Pressure instead!
+ */
+ BMP085_status_t BMP085_ReadCompensatedTemperature ( Vector_temp_f* myTrueTemperature, Vector_cal_coeff_t myCalCoeff );
+
+ /** It triggers a new pressure mesurement.
+ */
+ BMP085_status_t BMP085_TriggerPressure ( BMP085_pressure_osrs_t myResolution );
+
+ /** It reads the raw pressure value.
+ */
+ BMP085_status_t BMP085_ReadRawPressure ( Vector_pressure_f* myRawPressure );
+
+ /** It calculates the compensated/true temperature and pressure values.
+ */
+ Vector_compensated_data_f BMP085_CalculateCompensated_Temperature_Pressure ( Vector_cal_coeff_t myCalCoeff, Vector_temp_f myRawTemperature, Vector_pressure_f myRawPressure,
+ BMP085_pressure_osrs_t myResolution );
+
+private:
+ I2C i2c;
+ uint32_t BMP085_Addr;
+};
+
+#endif