JamEon Jeong
/
21400695_HW3_DHT_TCP
21400695_HW3_DHT22_TCP
Fork of _HW3_DHT_TCP by
MMA7455.h@0:e548610ed175, 2018-01-02 (annotated)
- Committer:
- Proverbs
- Date:
- Tue Jan 02 11:43:43 2018 +0000
- Revision:
- 0:e548610ed175
HW2_DHT_TCP
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Proverbs | 0:e548610ed175 | 1 | #ifndef MMA7455_H |
Proverbs | 0:e548610ed175 | 2 | #define MMA7455_H |
Proverbs | 0:e548610ed175 | 3 | |
Proverbs | 0:e548610ed175 | 4 | |
Proverbs | 0:e548610ed175 | 5 | /** |
Proverbs | 0:e548610ed175 | 6 | * Freescale Accelerometer MMA7455. |
Proverbs | 0:e548610ed175 | 7 | */ |
Proverbs | 0:e548610ed175 | 8 | class MMA7455 { |
Proverbs | 0:e548610ed175 | 9 | public: |
Proverbs | 0:e548610ed175 | 10 | |
Proverbs | 0:e548610ed175 | 11 | enum Mode { |
Proverbs | 0:e548610ed175 | 12 | ModeStandby = 0, |
Proverbs | 0:e548610ed175 | 13 | ModeMeasurement = 1, |
Proverbs | 0:e548610ed175 | 14 | }; |
Proverbs | 0:e548610ed175 | 15 | |
Proverbs | 0:e548610ed175 | 16 | /** Acceleration range */ |
Proverbs | 0:e548610ed175 | 17 | enum Range { |
Proverbs | 0:e548610ed175 | 18 | Range_8g = 0, |
Proverbs | 0:e548610ed175 | 19 | Range_2g = 1, |
Proverbs | 0:e548610ed175 | 20 | Range_4g = 2 |
Proverbs | 0:e548610ed175 | 21 | }; |
Proverbs | 0:e548610ed175 | 22 | |
Proverbs | 0:e548610ed175 | 23 | /** |
Proverbs | 0:e548610ed175 | 24 | * Create an interface to the MMA7455 accelerometer |
Proverbs | 0:e548610ed175 | 25 | * |
Proverbs | 0:e548610ed175 | 26 | * @param sda I2C data line pin |
Proverbs | 0:e548610ed175 | 27 | * @param scl I2C clock line pin |
Proverbs | 0:e548610ed175 | 28 | */ |
Proverbs | 0:e548610ed175 | 29 | MMA7455(PinName sda, PinName scl); |
Proverbs | 0:e548610ed175 | 30 | |
Proverbs | 0:e548610ed175 | 31 | bool setMode(Mode mode); |
Proverbs | 0:e548610ed175 | 32 | bool setRange(Range range); |
Proverbs | 0:e548610ed175 | 33 | |
Proverbs | 0:e548610ed175 | 34 | bool read(int32_t& x, int32_t& y, int32_t& z); |
Proverbs | 0:e548610ed175 | 35 | |
Proverbs | 0:e548610ed175 | 36 | /** |
Proverbs | 0:e548610ed175 | 37 | * Calibrate for 0g, that is, calculate offset to achieve |
Proverbs | 0:e548610ed175 | 38 | * 0g values when accelerometer is placed on flat surface. |
Proverbs | 0:e548610ed175 | 39 | * |
Proverbs | 0:e548610ed175 | 40 | * Please make sure the accelerometer is placed on a flat surface before |
Proverbs | 0:e548610ed175 | 41 | * calling this function. |
Proverbs | 0:e548610ed175 | 42 | * |
Proverbs | 0:e548610ed175 | 43 | * @return true if request was successful; otherwise false |
Proverbs | 0:e548610ed175 | 44 | */ |
Proverbs | 0:e548610ed175 | 45 | bool calibrate(); |
Proverbs | 0:e548610ed175 | 46 | |
Proverbs | 0:e548610ed175 | 47 | /** |
Proverbs | 0:e548610ed175 | 48 | * Get calculated offset values. Offsets will be calculated by the |
Proverbs | 0:e548610ed175 | 49 | * calibrate() method. |
Proverbs | 0:e548610ed175 | 50 | * |
Proverbs | 0:e548610ed175 | 51 | * Use these values and put them in persistent storage to avoid |
Proverbs | 0:e548610ed175 | 52 | * having to calibrate the accelerometer after a reset/power cycle. |
Proverbs | 0:e548610ed175 | 53 | * |
Proverbs | 0:e548610ed175 | 54 | * @param xOff x offset is written to this argument |
Proverbs | 0:e548610ed175 | 55 | * @param yOff y offset is written to this argument |
Proverbs | 0:e548610ed175 | 56 | * @param zOff z offset is written to this argument |
Proverbs | 0:e548610ed175 | 57 | * |
Proverbs | 0:e548610ed175 | 58 | * @return true if request was successful; otherwise false |
Proverbs | 0:e548610ed175 | 59 | */ |
Proverbs | 0:e548610ed175 | 60 | bool getCalibrationOffsets(int32_t& xOff, int32_t& yOff, int32_t& zOff); |
Proverbs | 0:e548610ed175 | 61 | |
Proverbs | 0:e548610ed175 | 62 | /** |
Proverbs | 0:e548610ed175 | 63 | * Set calibration offset values. These values should normally |
Proverbs | 0:e548610ed175 | 64 | * at one point in time have been retrieved by calling the |
Proverbs | 0:e548610ed175 | 65 | * getCalibrationOffsets method. |
Proverbs | 0:e548610ed175 | 66 | * |
Proverbs | 0:e548610ed175 | 67 | * |
Proverbs | 0:e548610ed175 | 68 | * @param xOff x offset |
Proverbs | 0:e548610ed175 | 69 | * @param yOff y offset |
Proverbs | 0:e548610ed175 | 70 | * @param zOff z offset |
Proverbs | 0:e548610ed175 | 71 | * |
Proverbs | 0:e548610ed175 | 72 | * @return true if request was successful; otherwise false |
Proverbs | 0:e548610ed175 | 73 | */ |
Proverbs | 0:e548610ed175 | 74 | bool setCalibrationOffsets(int32_t xOff, int32_t yOff, int32_t zOff); |
Proverbs | 0:e548610ed175 | 75 | |
Proverbs | 0:e548610ed175 | 76 | |
Proverbs | 0:e548610ed175 | 77 | |
Proverbs | 0:e548610ed175 | 78 | private: |
Proverbs | 0:e548610ed175 | 79 | |
Proverbs | 0:e548610ed175 | 80 | I2C _i2c; |
Proverbs | 0:e548610ed175 | 81 | Mode _mode; |
Proverbs | 0:e548610ed175 | 82 | Range _range; |
Proverbs | 0:e548610ed175 | 83 | int32_t _xOff; |
Proverbs | 0:e548610ed175 | 84 | int32_t _yOff; |
Proverbs | 0:e548610ed175 | 85 | int32_t _zOff; |
Proverbs | 0:e548610ed175 | 86 | |
Proverbs | 0:e548610ed175 | 87 | int getStatus(); |
Proverbs | 0:e548610ed175 | 88 | int getModeControl(); |
Proverbs | 0:e548610ed175 | 89 | int setModeControl(uint8_t mctl); |
Proverbs | 0:e548610ed175 | 90 | |
Proverbs | 0:e548610ed175 | 91 | }; |
Proverbs | 0:e548610ed175 | 92 | |
Proverbs | 0:e548610ed175 | 93 | #endif |