Subversion Repositories FlightCtrl

#ifndef _MM3_H
#define _MM3_H

#include <inttypes.h>

typedef struct
{
        int8_t X_off;
        int8_t Y_off;
        int8_t Z_off;
        int16_t X_range;
        int16_t Y_range;
        int16_t Z_range;
} MM3_calib_t;

extern MM3_calib_t MM3_calib;

// Initialization of the MM3 communication
void MM3_Init(void);

// should be called cyclic to get actual compass reading
void MM3_Update(void);
// this function calibrates the MM3
// and returns immediately if the communication to the MM3-Board is broken.
void MM3_Calibrate(void);

// calculates the current compass heading in a range from 0 to 360 deg.
// returns -1 if no compass data are available
int16_t MM3_Heading(void);

#endif //_MM3_H