Charith Dassanayake
/
CPPToPigpio - Testing Programs
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MPR121/MPR121.h@0:9a49249d42b3, 2017-12-13 (annotated)
- Committer:
- Charith Dassanayake
- Date:
- Wed Dec 13 00:06:47 2017 -0500
- Revision:
- 0:9a49249d42b3
Initial commit
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| Charith Dassanayake |
0:9a49249d42b3 | 1 | #ifndef MPR121_H |
| Charith Dassanayake |
0:9a49249d42b3 | 2 | #define MPR121_H |
| Charith Dassanayake |
0:9a49249d42b3 | 3 | |
| Charith Dassanayake |
0:9a49249d42b3 | 4 | class Mpr121 |
| Charith Dassanayake |
0:9a49249d42b3 | 5 | { |
| Charith Dassanayake |
0:9a49249d42b3 | 6 | |
| Charith Dassanayake |
0:9a49249d42b3 | 7 | public: |
| Charith Dassanayake |
0:9a49249d42b3 | 8 | // i2c Addresses, bit-shifted |
| Charith Dassanayake |
0:9a49249d42b3 | 9 | enum Address { ADD_VSS = 0x5a,// ADD->VSS = 0x5a <-wiring on Sparkfun board |
| Charith Dassanayake |
0:9a49249d42b3 | 10 | ADD_VDD = 0x5b,// ADD->VDD = 0x5b |
| Charith Dassanayake |
0:9a49249d42b3 | 11 | ADD_SCL = 0x5c,// ADD->SDA = 0x5c |
| Charith Dassanayake |
0:9a49249d42b3 | 12 | ADD_SDA = 0x5d // ADD->SCL = 0x5d |
| Charith Dassanayake |
0:9a49249d42b3 | 13 | }; |
| Charith Dassanayake |
0:9a49249d42b3 | 14 | /*enum Address { ADD_VSS = 0xb4,// ADD->VSS = 0x5a <-wiring on Sparkfun board |
| Charith Dassanayake |
0:9a49249d42b3 | 15 | ADD_VDD = 0xb6,// ADD->VDD = 0x5b |
| Charith Dassanayake |
0:9a49249d42b3 | 16 | ADD_SCL = 0xb8,// ADD->SDA = 0x5c |
| Charith Dassanayake |
0:9a49249d42b3 | 17 | ADD_SDA = 0xba // ADD->SCL = 0x5d |
| Charith Dassanayake |
0:9a49249d42b3 | 18 | };*/ |
| Charith Dassanayake |
0:9a49249d42b3 | 19 | |
| Charith Dassanayake |
0:9a49249d42b3 | 20 | // Real initialiser, takes the i2c address of the device. |
| Charith Dassanayake |
0:9a49249d42b3 | 21 | Mpr121(CPPToPigpio::I2C *i2c, Address i2cAddress); |
| Charith Dassanayake |
0:9a49249d42b3 | 22 | |
| Charith Dassanayake |
0:9a49249d42b3 | 23 | bool getProximityMode(); |
| Charith Dassanayake |
0:9a49249d42b3 | 24 | |
| Charith Dassanayake |
0:9a49249d42b3 | 25 | void setProximityMode(bool mode); |
| Charith Dassanayake |
0:9a49249d42b3 | 26 | |
| Charith Dassanayake |
0:9a49249d42b3 | 27 | int readTouchData(); |
| Charith Dassanayake |
0:9a49249d42b3 | 28 | |
| Charith Dassanayake |
0:9a49249d42b3 | 29 | unsigned char read(int key); |
| Charith Dassanayake |
0:9a49249d42b3 | 30 | |
| Charith Dassanayake |
0:9a49249d42b3 | 31 | int write(int address, unsigned char value); |
| Charith Dassanayake |
0:9a49249d42b3 | 32 | int writeMany(int start, unsigned char* dataSet, int length); |
| Charith Dassanayake |
0:9a49249d42b3 | 33 | |
| Charith Dassanayake |
0:9a49249d42b3 | 34 | void setElectrodeThreshold(int electrodeId, unsigned char touchThreshold, unsigned char releaseThreshold); |
| Charith Dassanayake |
0:9a49249d42b3 | 35 | |
| Charith Dassanayake |
0:9a49249d42b3 | 36 | protected: |
| Charith Dassanayake |
0:9a49249d42b3 | 37 | // Configures the MPR with standard settings. This is permitted to be overwritten by sub-classes. |
| Charith Dassanayake |
0:9a49249d42b3 | 38 | void configureSettings(); |
| Charith Dassanayake |
0:9a49249d42b3 | 39 | |
| Charith Dassanayake |
0:9a49249d42b3 | 40 | private: |
| Charith Dassanayake |
0:9a49249d42b3 | 41 | // The I2C bus instance. |
| Charith Dassanayake |
0:9a49249d42b3 | 42 | CPPToPigpio::I2C *i2c; |
| Charith Dassanayake |
0:9a49249d42b3 | 43 | |
| Charith Dassanayake |
0:9a49249d42b3 | 44 | // i2c address of this mpr121 |
| Charith Dassanayake |
0:9a49249d42b3 | 45 | Address address; |
| Charith Dassanayake |
0:9a49249d42b3 | 46 | }; |
| Charith Dassanayake |
0:9a49249d42b3 | 47 | |
| Charith Dassanayake |
0:9a49249d42b3 | 48 | |
| Charith Dassanayake |
0:9a49249d42b3 | 49 | // MPR121 Register Defines |
| Charith Dassanayake |
0:9a49249d42b3 | 50 | #define MHD_R 0x2B |
| Charith Dassanayake |
0:9a49249d42b3 | 51 | #define NHD_R 0x2C |
| Charith Dassanayake |
0:9a49249d42b3 | 52 | #define NCL_R 0x2D |
| Charith Dassanayake |
0:9a49249d42b3 | 53 | #define FDL_R 0x2E |
| Charith Dassanayake |
0:9a49249d42b3 | 54 | #define MHD_F 0x2F |
| Charith Dassanayake |
0:9a49249d42b3 | 55 | #define NHD_F 0x30 |
| Charith Dassanayake |
0:9a49249d42b3 | 56 | #define NCL_F 0x31 |
| Charith Dassanayake |
0:9a49249d42b3 | 57 | #define FDL_F 0x32 |
| Charith Dassanayake |
0:9a49249d42b3 | 58 | #define NHDT 0x33 |
| Charith Dassanayake |
0:9a49249d42b3 | 59 | #define NCLT 0x34 |
| Charith Dassanayake |
0:9a49249d42b3 | 60 | #define FDLT 0x35 |
| Charith Dassanayake |
0:9a49249d42b3 | 61 | // Proximity sensing controls |
| Charith Dassanayake |
0:9a49249d42b3 | 62 | #define MHDPROXR 0x36 |
| Charith Dassanayake |
0:9a49249d42b3 | 63 | #define NHDPROXR 0x37 |
| Charith Dassanayake |
0:9a49249d42b3 | 64 | #define NCLPROXR 0x38 |
| Charith Dassanayake |
0:9a49249d42b3 | 65 | #define FDLPROXR 0x39 |
| Charith Dassanayake |
0:9a49249d42b3 | 66 | #define MHDPROXF 0x3A |
| Charith Dassanayake |
0:9a49249d42b3 | 67 | #define NHDPROXF 0x3B |
| Charith Dassanayake |
0:9a49249d42b3 | 68 | #define NCLPROXF 0x3C |
| Charith Dassanayake |
0:9a49249d42b3 | 69 | #define FDLPROXF 0x3D |
| Charith Dassanayake |
0:9a49249d42b3 | 70 | #define NHDPROXT 0x3E |
| Charith Dassanayake |
0:9a49249d42b3 | 71 | #define NCLPROXT 0x3F |
| Charith Dassanayake |
0:9a49249d42b3 | 72 | #define FDLPROXT 0x40 |
| Charith Dassanayake |
0:9a49249d42b3 | 73 | // Electrode Touch/Release thresholds |
| Charith Dassanayake |
0:9a49249d42b3 | 74 | #define ELE0_T 0x41 |
| Charith Dassanayake |
0:9a49249d42b3 | 75 | #define ELE0_R 0x42 |
| Charith Dassanayake |
0:9a49249d42b3 | 76 | #define ELE1_T 0x43 |
| Charith Dassanayake |
0:9a49249d42b3 | 77 | #define ELE1_R 0x44 |
| Charith Dassanayake |
0:9a49249d42b3 | 78 | #define ELE2_T 0x45 |
| Charith Dassanayake |
0:9a49249d42b3 | 79 | #define ELE2_R 0x46 |
| Charith Dassanayake |
0:9a49249d42b3 | 80 | #define ELE3_T 0x47 |
| Charith Dassanayake |
0:9a49249d42b3 | 81 | #define ELE3_R 0x48 |
| Charith Dassanayake |
0:9a49249d42b3 | 82 | #define ELE4_T 0x49 |
| Charith Dassanayake |
0:9a49249d42b3 | 83 | #define ELE4_R 0x4A |
| Charith Dassanayake |
0:9a49249d42b3 | 84 | #define ELE5_T 0x4B |
| Charith Dassanayake |
0:9a49249d42b3 | 85 | #define ELE5_R 0x4C |
| Charith Dassanayake |
0:9a49249d42b3 | 86 | #define ELE6_T 0x4D |
| Charith Dassanayake |
0:9a49249d42b3 | 87 | #define ELE6_R 0x4E |
| Charith Dassanayake |
0:9a49249d42b3 | 88 | #define ELE7_T 0x4F |
| Charith Dassanayake |
0:9a49249d42b3 | 89 | #define ELE7_R 0x50 |
| Charith Dassanayake |
0:9a49249d42b3 | 90 | #define ELE8_T 0x51 |
| Charith Dassanayake |
0:9a49249d42b3 | 91 | #define ELE8_R 0x52 |
| Charith Dassanayake |
0:9a49249d42b3 | 92 | #define ELE9_T 0x53 |
| Charith Dassanayake |
0:9a49249d42b3 | 93 | #define ELE9_R 0x54 |
| Charith Dassanayake |
0:9a49249d42b3 | 94 | #define ELE10_T 0x55 |
| Charith Dassanayake |
0:9a49249d42b3 | 95 | #define ELE10_R 0x56 |
| Charith Dassanayake |
0:9a49249d42b3 | 96 | #define ELE11_T 0x57 |
| Charith Dassanayake |
0:9a49249d42b3 | 97 | #define ELE11_R 0x58 |
| Charith Dassanayake |
0:9a49249d42b3 | 98 | // Proximity Touch/Release thresholds |
| Charith Dassanayake |
0:9a49249d42b3 | 99 | #define EPROXTTH 0x59 |
| Charith Dassanayake |
0:9a49249d42b3 | 100 | #define EPROXRTH 0x5A |
| Charith Dassanayake |
0:9a49249d42b3 | 101 | // Debounce configuration |
| Charith Dassanayake |
0:9a49249d42b3 | 102 | #define DEB_CFG 0x5B |
| Charith Dassanayake |
0:9a49249d42b3 | 103 | // AFE- Analogue Front End configuration |
| Charith Dassanayake |
0:9a49249d42b3 | 104 | #define AFE_CFG 0x5C |
| Charith Dassanayake |
0:9a49249d42b3 | 105 | // Filter configuration |
| Charith Dassanayake |
0:9a49249d42b3 | 106 | #define FIL_CFG 0x5D |
| Charith Dassanayake |
0:9a49249d42b3 | 107 | // Electrode configuration - transistions to "active mode" |
| Charith Dassanayake |
0:9a49249d42b3 | 108 | #define ELE_CFG 0x5E |
| Charith Dassanayake |
0:9a49249d42b3 | 109 | |
| Charith Dassanayake |
0:9a49249d42b3 | 110 | #define GPIO_CTRL0 0x73 |
| Charith Dassanayake |
0:9a49249d42b3 | 111 | #define GPIO_CTRL1 0x74 |
| Charith Dassanayake |
0:9a49249d42b3 | 112 | #define GPIO_DATA 0x75 |
| Charith Dassanayake |
0:9a49249d42b3 | 113 | #define GPIO_DIR 0x76 |
| Charith Dassanayake |
0:9a49249d42b3 | 114 | #define GPIO_EN 0x77 |
| Charith Dassanayake |
0:9a49249d42b3 | 115 | #define GPIO_SET 0x78 |
| Charith Dassanayake |
0:9a49249d42b3 | 116 | #define GPIO_CLEAR 0x79 |
| Charith Dassanayake |
0:9a49249d42b3 | 117 | #define GPIO_TOGGLE 0x7A |
| Charith Dassanayake |
0:9a49249d42b3 | 118 | // Auto configration registers |
| Charith Dassanayake |
0:9a49249d42b3 | 119 | #define AUTO_CFG_0 0x7B |
| Charith Dassanayake |
0:9a49249d42b3 | 120 | #define AUTO_CFG_U 0x7D |
| Charith Dassanayake |
0:9a49249d42b3 | 121 | #define AUTO_CFG_L 0x7E |
| Charith Dassanayake |
0:9a49249d42b3 | 122 | #define AUTO_CFG_T 0x7F |
| Charith Dassanayake |
0:9a49249d42b3 | 123 | |
| Charith Dassanayake |
0:9a49249d42b3 | 124 | // Threshold defaults |
| Charith Dassanayake |
0:9a49249d42b3 | 125 | // Electrode touch threshold |
| Charith Dassanayake |
0:9a49249d42b3 | 126 | #define E_THR_T 0x0F |
| Charith Dassanayake |
0:9a49249d42b3 | 127 | // Electrode release threshold |
| Charith Dassanayake |
0:9a49249d42b3 | 128 | #define E_THR_R 0x0A |
| Charith Dassanayake |
0:9a49249d42b3 | 129 | // Prox touch threshold |
| Charith Dassanayake |
0:9a49249d42b3 | 130 | #define PROX_THR_T 0x02 |
| Charith Dassanayake |
0:9a49249d42b3 | 131 | // Prox release threshold |
| Charith Dassanayake |
0:9a49249d42b3 | 132 | #define PROX_THR_R 0x02 |
| Charith Dassanayake |
0:9a49249d42b3 | 133 | |
| Charith Dassanayake |
0:9a49249d42b3 | 134 | #endif |