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| 16 | extern MM3_calib_t MM3_calib; |
16 | extern MM3_calib_t MM3_calib; |
| 17 | 17 | ||
| - | 18 | // Initialization of the MM3 communication |
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| 18 | // Initialization of the MM3 communication |
19 | void MM3_Init(void); |
| 19 | void MM3_Init(void); |
20 | |
| 20 | // should be called cyclic to get actual compass reading |
21 | // should be called cyclic to get actual compass reading |
| 21 | void MM3_Update(void); |
22 | void MM3_Update(void); |
| 22 | // this function calibrates the MM3 |
23 | // this function calibrates the MM3 |
| - | 24 | // and returns immediately if the communication to the MM3-Board is broken. |
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| 23 | // and returns immediately if the communication to the MM3-Board is broken. |
25 | void MM3_Calibrate(void); |
| 24 | void MM3_Calibrate(void); |
26 | |
| 25 | // calculates the current compass heading in a range from 0 to 360 deg. |
27 | // calculates the current compass heading in a range from 0 to 360 deg. |
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| 26 | // returns -1 of no compass data are available |
28 | // returns -1 if no compass data are available |