tm_stm32f4_bmp180.h

#ifndef TM_BMP180_H
#define TM_BMP180_H 100

/* C++ detection */
#ifdef __cplusplus
extern C {
#endif

#include "stm32f4xx.h"
#include "stm32f4xx_rcc.h"
#include "defines.h"
#include "tm_stm32f4_i2c.h"
#include "math.h"

/* Default I2C pin */
#ifndef BMP180_I2C
#define BMP180_I2C                  I2C3
#define BMP180_I2C_PINSPACK         TM_I2C_PinsPack_1
#endif

/* Default I2C speed */
#ifndef BMP180_I2C_SPEED
#define BMP180_I2C_SPEED            100000
#endif

/* BMP180 I2C address */
#ifndef BMP180_I2C_ADDRESS
#define BMP180_I2C_ADDRESS          0xEE
#endif

/* Registers */
#define BMP180_REGISTER_CONTROL     0xF4
#define BMP180_REGISTER_RESULT      0xF6
#define BMP180_REGISTER_EEPROM      0xAA

/* Commands */
#define BMP180_COMMAND_TEMPERATURE  0x2E
#define BMP180_COMMAND_PRESSURE_0   0x34
#define BMP180_COMMAND_PRESSURE_1   0x74
#define BMP180_COMMAND_PRESSURE_2   0xB4
#define BMP180_COMMAND_PRESSURE_3   0xF4

/* Minimum waiting delay, in microseconds */
#define BMP180_TEMPERATURE_DELAY    4500
#define BMP180_PRESSURE_0_DELAY     4500
#define BMP180_PRESSURE_1_DELAY     7500
#define BMP180_PRESSURE_2_DELAY     13000
#define BMP180_PRESSURE_3_DELAY     25000

typedef enum {
    TM_BMP180_Result_Ok = 0x00,            
    TM_BMP180_Result_DeviceNotConnected,   
    TM_BMP180_Result_LibraryNotInitialized 
} TM_BMP180_Result_t;

typedef enum {
    TM_BMP180_Oversampling_UltraLowPower = 0x00,      
    TM_BMP180_Oversampling_Standard = 0x01,           
    TM_BMP180_Oversampling_HighResolution = 0x02,     
    TM_BMP180_Oversampling_UltraHighResolution = 0x03 
} TM_BMP180_Oversampling_t;

typedef struct {
    float Altitude;                        
    uint32_t Pressure;                     
    float Temperature;                     
    uint16_t Delay;                        
    TM_BMP180_Oversampling_t Oversampling; 
} TM_BMP180_t;

TM_BMP180_Result_t TM_BMP180_Init(TM_BMP180_t* BMP180_Data);

TM_BMP180_Result_t TM_BMP180_StartTemperature(TM_BMP180_t* BMP180_Data);

TM_BMP180_Result_t TM_BMP180_ReadTemperature(TM_BMP180_t* BMP180_Data);

TM_BMP180_Result_t TM_BMP180_StartPressure(TM_BMP180_t* BMP180_Data, TM_BMP180_Oversampling_t Oversampling);

TM_BMP180_Result_t TM_BMP180_ReadPressure(TM_BMP180_t* BMP180_Data);

uint32_t TM_BMP180_GetPressureAtSeaLevel(uint32_t pressure, float altitude);

/* C++ detection */
#ifdef __cplusplus
}
#endif

#endif