Sensor Fusion Software from Freescale
April 22, 2012
Xtrinsic eCompass sensor fusion software from Freescale Semiconductor, Austin, TX, works with the company's Xtrinsic accelerometer and magnetometer devices to provide fully tilt-compensated and calibrated electronic compass data. The software features roll, pitch, and compass angles; a 4-element model is available that supports hard iron calibration; a 7-element model supports both hard-iron and soft-iron interference correction; standard ANSI C source code; a 20 KB compiled code size; 6.5 KB RAM requirement; and a sensor simulation module for immediate verification.
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