AN4602

Offset management

7

Offset management

The LIS3MDL provides six registers dedicated to erase possible offset in the output data.

Typical usage of these registers is to compensate for hard-iron effects:

OFFSET_X_REG_L_M (05h) ;

OFFSET_X_REG_H_M (06h) ;

OFFSET_Y_REG_L_M (07h) ;

OFFSET_Y_REG_H_M (08h) ;

OFFSET_Z_REG_L_M (09h) ;

OFFSET_Z_REG_H_M (0Ah) ;

Offset values have to be written in the registers as 16-bit, 2’s complement (the sensitivity

value is the same used for the magnetic data, please refer to Table 2: "Full-scale

selection").

The content of the OFFSET register is subtracted from the output of the device:

OUT = OUT(measured) - OFFSET

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