Freescale Semiconductor Xtrinsic MAG3110 Magnetometer RD4247MAG3110 RD4247MAG3110 User Manual
Product codes
RD4247MAG3110
RD4247MAG3110 Sensor Toolbox Tilt-Compensated eCompass Kit User’s Guide, Rev. 2
10
Freescale Semiconductor
Quick-Start Demonstration
— Deselect the Subtract checkboxes in both frames to turn off the hard-iron and soft-iron
corrections for the eCompass and observe how the compass heading becomes jammed.
— Select both Subtract checkboxes to reactivate the calibration corrections and watch the
eCompass become unjammed again.
8. Demonstrate the importance of tilt-compensation algorithms by returning to the Calibrated B
frame, near the top, center of the Main screen, and deselecting the Tilt Correction checkbox to turn
off tilt correction for the eCompass.
off tilt correction for the eCompass.
The eCompass will still operate if it is held flat, but pitching or rolling the device will cause
dramatic compass heading errors.
dramatic compass heading errors.
9. Examine calibration options by doing the following in the Calibration frame in the bottom, left of
the Main screen:
— Sequentially select the 10 element, 7 element, and 4 element option buttons.
Subtract checkboxes
Tilt Correction checkbox
Fit Error % reading
Element calibration options