The LIS3MDL magnetic data are 16bit left-justified. I deserialised the the Data to a int-16 value. How can I interprete the "left-justified" remark? Do I have to shift the Answer?

[LLoid.1]

..

[Eleon BORLINI]

Hi @LLoid.1​ , please consider the example library an d driver on Github repository.

In order to get physical units from register data content you have just to convert the 16-bit value obtained concatenating the two dataout registers into decimal value through two's complement conversion and then divide for the FullScale-related sensitivity

/**
 * @defgroup LIS3MDL_Sensitivity
 * @brief These functions convert raw-data into engineering units.
 * @{
 *
 */
 
float lis3mdl_from_fs4_to_gauss(int16_t lsb)
{
 return ((float)lsb / 6842.0f);
}
 
float lis3mdl_from_fs8_to_gauss(int16_t lsb)
{
 return ((float)lsb / 3421.0f);
}
 
float lis3mdl_from_fs12_to_gauss(int16_t lsb)
{
 return ((float)lsb / 2281.0f);
}
 
float lis3mdl_from_fs16_to_gauss(int16_t lsb)
{
 return ((float)lsb / 1711.0f);
}

Regards