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typedef struct
{
        uint8_t STATE;
        unsigned int DRDY;
        uint8_t AXIS;
        signed int x_axis;
        signed int y_axis;
        signed int z_axis;
        signed int NickGrad;
        signed int RollGrad;
}MM3_struct;

extern MM3_struct MM3; 

void init_spi(void);
void MM3_timer0(void);
signed int MM3_heading(void);

#define Int2Grad_Faktor         1024

// Die Werte der Statemachine
#define MM3_RESET                       0
#define MM3_START_TRANSFER      1
#define MM3_WAIT_DRDY           2
#define MM3_DRDY                        4
#define MM3_BYTE2                       8
#define MM3_X                           16
#define MM3_Y                           32
#define MM3_Z                           64
#define MM3_TILT                        128


// Die Werte der Kompasskalibrierung

// OFFSET: (Maximaler Wert + minimaler Wert) / 2
#define OFF_X   0
#define OFF_Y   0
#define OFF_Z   0