File content as of revision 4:d55264b2cad5:

#include "LPS25H.h"

/** Class constructor */
LPS25H::LPS25H(PinName sda, PinName scl) : i2c(sda, scl)
{
}

/** Init barometer */
void LPS25H::init()
{
    init_baro();
}
/** Read barometer */
void LPS25H::read()
{
    read_baro();
}

/** Initialize barometer */
void LPS25H::init_baro()
{
    // LPS25H I2C address
    char address = LPS25H_ADDRESS;
    // Register address and data that we're going to write
    char reg_data[2] = {CTRL_REG1, 0b10110000};
    
    // Point to register address and write data into this address
    i2c.write(address, reg_data, 2);
}

/** Read barometer */
void LPS25H::read_baro()
{
    // LPS25H I2C address
    char address = LPS25H_ADDRESS;
    // Register address
    char reg[1] = {PRESS_OUT_XL | (1 << 7)};
    // Data that we're going to read
    char data[3];

    // Point to register address
    i2c.write(address, reg, 1);
    // Read data from this address (register address will auto-increment and all three axis information (two 8 bit data each) will be read)
    i2c.read(address, data, 3);

    // Reassemble the data (three 8 bit data into one 24 bit data)
    int32_t p_raw = (data[2] << 16 ) | (data[1] << 8 ) | data[0];
    // Convert to SI units
    p = p_raw / 4096.0;
    //
    z = 44330.8f*(1.0f-pow((p/1025.0f),0.190263f));
}