ADI_CAC / ADXL355

Rohan - COG4050 and ADXL355 Tilt sensing

Dependents:   COG4050_adxl355_tilt COG4050_adxl355_tilt COG4050_adxl355_tilt_4050

Fork of ADXL355 by Rohan Gurav

ADXL355.h@1:e80c97768af4, 2018-08-21 (annotated)

Committer:
RGurav
Date:
Tue Aug 21 13:25:06 2018 +0000
Revision:
1:e80c97768af4
Parent:
0:1b8d65be0eef 
COG4050 and ADXL355 Tilt sensing

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RGurav 0:1b8d65be0eef 1
RGurav 0:1b8d65be0eef 2 #ifndef ADXL355_H_
RGurav 0:1b8d65be0eef 3 #define ADXL355_H_
RGurav 0:1b8d65be0eef 4
RGurav 0:1b8d65be0eef 5 class ADXL355
RGurav 0:1b8d65be0eef 6 {
RGurav 0:1b8d65be0eef 7 public:
RGurav 0:1b8d65be0eef 8 // -------------------------- //
RGurav 0:1b8d65be0eef 9 // CONST AND VARIABLES //
RGurav 0:1b8d65be0eef 10 // -------------------------- //
RGurav 0:1b8d65be0eef 11 typedef struct {
RGurav 0:1b8d65be0eef 12 // sensitivity
RGurav 0:1b8d65be0eef 13 float S[2][2];
RGurav 0:1b8d65be0eef 14 float St;
RGurav 0:1b8d65be0eef 15 // 0g offset
RGurav 0:1b8d65be0eef 16 float B[2][0];
RGurav 0:1b8d65be0eef 17 } ADXL355_calibdata_t;
RGurav 0:1b8d65be0eef 18 ADXL355_calibdata_t calib_data;
RGurav 0:1b8d65be0eef 19 // gravity filed vectors
RGurav 0:1b8d65be0eef 20 const static float t_sens = -9.05;
RGurav 0:1b8d65be0eef 21 const static float t_bias = 1852;
RGurav 0:1b8d65be0eef 22 float axis355_sens;
RGurav 0:1b8d65be0eef 23 float axis357_sens;
RGurav 0:1b8d65be0eef 24 // -------------------------- //
RGurav 0:1b8d65be0eef 25 // REGISTERS //
RGurav 0:1b8d65be0eef 26 // -------------------------- //
RGurav 0:1b8d65be0eef 27 typedef enum {
RGurav 0:1b8d65be0eef 28 DEVID_AD = 0x00,
RGurav 0:1b8d65be0eef 29 DEVID_MST = 0x01,
RGurav 0:1b8d65be0eef 30 PARTID = 0x02,
RGurav 0:1b8d65be0eef 31 REVID = 0x03,
RGurav 0:1b8d65be0eef 32 STATUS = 0x04,
RGurav 0:1b8d65be0eef 33 FIFO_ENTRIES = 0x05,
RGurav 0:1b8d65be0eef 34 TEMP2 = 0x06,
RGurav 0:1b8d65be0eef 35 TEMP1 = 0x07,
RGurav 0:1b8d65be0eef 36 XDATA3 = 0x08,
RGurav 0:1b8d65be0eef 37 XDATA2 = 0x09,
RGurav 0:1b8d65be0eef 38 XDATA1 = 0x0A,
RGurav 0:1b8d65be0eef 39 YDATA3 = 0x0B,
RGurav 0:1b8d65be0eef 40 YDATA2 = 0x0C,
RGurav 0:1b8d65be0eef 41 YDATA1 = 0x0D,
RGurav 0:1b8d65be0eef 42 ZDATA3 = 0x0E,
RGurav 0:1b8d65be0eef 43 ZDATA2 = 0x0F,
RGurav 0:1b8d65be0eef 44 ZDATA1 = 0x10,
RGurav 0:1b8d65be0eef 45 FIFO_DATA = 0x11,
RGurav 0:1b8d65be0eef 46 OFFSET_X_H = 0x1E,
RGurav 0:1b8d65be0eef 47 OFFSET_X_L = 0x1F,
RGurav 0:1b8d65be0eef 48 OFFSET_Y_H = 0x20,
RGurav 0:1b8d65be0eef 49 OFFSET_Y_L = 0x21,
RGurav 0:1b8d65be0eef 50 OFFSET_Z_H = 0x22,
RGurav 0:1b8d65be0eef 51 OFFSET_Z_L = 0x23,
RGurav 0:1b8d65be0eef 52 ACT_EN = 0x24,
RGurav 0:1b8d65be0eef 53 ACT_THRESH_H = 0x25,
RGurav 0:1b8d65be0eef 54 ACT_THRESH_L = 0x26,
RGurav 0:1b8d65be0eef 55 ACT_COUNT = 0x27,
RGurav 0:1b8d65be0eef 56 FILTER = 0x28,
RGurav 0:1b8d65be0eef 57 FIFO_SAMPLES = 0x29,
RGurav 0:1b8d65be0eef 58 INT_MAP = 0x2A,
RGurav 0:1b8d65be0eef 59 SYNC = 0x2B,
RGurav 0:1b8d65be0eef 60 RANGE = 0x2C,
RGurav 0:1b8d65be0eef 61 POWER_CTL = 0x2D,
RGurav 0:1b8d65be0eef 62 SELF_TEST = 0x2E,
RGurav 0:1b8d65be0eef 63 RESET = 0x2F
RGurav 0:1b8d65be0eef 64 } ADXL355_register_t;
RGurav 0:1b8d65be0eef 65 // -------------------------- //
RGurav 0:1b8d65be0eef 66 // REGISTERS - DEFAULT VALUES //
RGurav 0:1b8d65be0eef 67 // -------------------------- //
RGurav 0:1b8d65be0eef 68 // Modes - POWER_CTL
RGurav 0:1b8d65be0eef 69 typedef enum {
RGurav 0:1b8d65be0eef 70 DRDY_OFF = 0x04,
RGurav 0:1b8d65be0eef 71 TEMP_OFF = 0x02,
RGurav 0:1b8d65be0eef 72 STANDBY = 0x01,
RGurav 0:1b8d65be0eef 73 MEASUREMENT = 0x00
RGurav 0:1b8d65be0eef 74 } ADXL355_modes_t;
RGurav 0:1b8d65be0eef 75 // Activate Threshold - ACT_EN
RGurav 0:1b8d65be0eef 76 typedef enum {
RGurav 0:1b8d65be0eef 77 ACT_Z = 0x04,
RGurav 0:1b8d65be0eef 78 ACT_Y = 0x02,
RGurav 0:1b8d65be0eef 79 ACT_X = 0x01
RGurav 0:1b8d65be0eef 80 } ADXL355_act_ctl_t;
RGurav 0:1b8d65be0eef 81 // High-Pass and Low-Pass Filter - FILTER
RGurav 0:1b8d65be0eef 82 typedef enum {
RGurav 0:1b8d65be0eef 83 HPFOFF = 0x00,
RGurav 0:1b8d65be0eef 84 HPF247 = 0x10,
RGurav 0:1b8d65be0eef 85 HPF62 = 0x20,
RGurav 0:1b8d65be0eef 86 HPF15 = 0x30,
RGurav 0:1b8d65be0eef 87 HPF3 = 0x40,
RGurav 0:1b8d65be0eef 88 HPF09 = 0x50,
RGurav 0:1b8d65be0eef 89 HPF02 = 0x60,
RGurav 0:1b8d65be0eef 90 ODR4000HZ = 0x00,
RGurav 0:1b8d65be0eef 91 ODR2000HZ = 0x01,
RGurav 0:1b8d65be0eef 92 ODR1000HZ = 0x02,
RGurav 0:1b8d65be0eef 93 ODR500HZ = 0x03,
RGurav 0:1b8d65be0eef 94 ODR250HZ = 0x04,
RGurav 0:1b8d65be0eef 95 ODR125Hz = 0x05,
RGurav 0:1b8d65be0eef 96 ODR62HZ = 0x06,
RGurav 0:1b8d65be0eef 97 ODR31Hz = 0x07,
RGurav 0:1b8d65be0eef 98 ODR15Hz = 0x08,
RGurav 0:1b8d65be0eef 99 ODR7Hz = 0x09,
RGurav 0:1b8d65be0eef 100 ODR3HZ = 0x0A
RGurav 0:1b8d65be0eef 101 } ADXL355_filter_ctl_t;
RGurav 0:1b8d65be0eef 102 // External timing register - INT_MAP
RGurav 0:1b8d65be0eef 103 typedef enum {
RGurav 0:1b8d65be0eef 104 OVR_EN = 0x04,
RGurav 0:1b8d65be0eef 105 FULL_EN = 0x02,
RGurav 0:1b8d65be0eef 106 RDY_EN = 0x01
RGurav 0:1b8d65be0eef 107 } ADXL355_intmap_ctl_t;
RGurav 0:1b8d65be0eef 108 // External timing register - SYNC
RGurav 0:1b8d65be0eef 109 typedef enum {
RGurav 0:1b8d65be0eef 110 EXT_CLK = 0x04,
RGurav 0:1b8d65be0eef 111 INT_SYNC = 0x00,
RGurav 0:1b8d65be0eef 112 EXT_SYNC_NO_INT = 0x01,
RGurav 0:1b8d65be0eef 113 EXT_SYNC_INT = 0x02
RGurav 0:1b8d65be0eef 114 } ADXL355_sync_ctl_t;
RGurav 0:1b8d65be0eef 115 // polarity and range - RANGE
RGurav 0:1b8d65be0eef 116 typedef enum {
RGurav 0:1b8d65be0eef 117 RANGE2G = 0x01,
RGurav 0:1b8d65be0eef 118 RANGE4G = 0x02,
RGurav 0:1b8d65be0eef 119 RANGE8G = 0x03,
RGurav 0:1b8d65be0eef 120 RANGE10 = 0x01,
RGurav 0:1b8d65be0eef 121 RANGE20 = 0x02,
RGurav 0:1b8d65be0eef 122 RANGE40 = 0x03
RGurav 0:1b8d65be0eef 123 } ADXL355_range_ctl_t;
RGurav 0:1b8d65be0eef 124 // self test interrupt - INT
RGurav 0:1b8d65be0eef 125 typedef enum {
RGurav 0:1b8d65be0eef 126 ST2 = 0x02,
RGurav 0:1b8d65be0eef 127 ST1 = 0x01
RGurav 0:1b8d65be0eef 128 } ADXL355_int_ctl_t;
RGurav 0:1b8d65be0eef 129 // -------------------------- //
RGurav 0:1b8d65be0eef 130 // FUNCTIONS //
RGurav 0:1b8d65be0eef 131 // -------------------------- //
RGurav 0:1b8d65be0eef 132 // SPI configuration & constructor
RGurav 0:1b8d65be0eef 133 ADXL355(PinName cs_pin , PinName MOSI , PinName MISO , PinName SCK );
RGurav 0:1b8d65be0eef 134 void frequency(int hz);
RGurav 0:1b8d65be0eef 135 // Low level SPI bus comm methods
RGurav 0:1b8d65be0eef 136 void reset(void);
RGurav 0:1b8d65be0eef 137 void write_reg(ADXL355_register_t reg, uint8_t data);
RGurav 0:1b8d65be0eef 138 void write_reg_u16(ADXL355_register_t reg, uint16_t data);
RGurav 0:1b8d65be0eef 139 uint8_t read_reg(ADXL355_register_t reg);
RGurav 0:1b8d65be0eef 140 uint16_t read_reg_u16(ADXL355_register_t reg);
RGurav 0:1b8d65be0eef 141 uint32_t read_reg_u20(ADXL355_register_t reg);
RGurav 0:1b8d65be0eef 142 // ADXL general register R/W methods
RGurav 0:1b8d65be0eef 143 void set_power_ctl_reg(uint8_t data);
RGurav 0:1b8d65be0eef 144 void set_filter_ctl_reg(ADXL355_filter_ctl_t hpf, ADXL355_filter_ctl_t odr);
RGurav 0:1b8d65be0eef 145 void set_clk(ADXL355_sync_ctl_t data);
RGurav 0:1b8d65be0eef 146 void set_device(ADXL355_range_ctl_t range);
RGurav 0:1b8d65be0eef 147 uint8_t read_status();
RGurav 0:1b8d65be0eef 148 // ADXL X/Y/Z/T scanning methods
RGurav 0:1b8d65be0eef 149 uint32_t scanx();
RGurav 0:1b8d65be0eef 150 uint32_t scany();
RGurav 0:1b8d65be0eef 151 uint32_t scanz();
RGurav 0:1b8d65be0eef 152 uint16_t scant();
RGurav 0:1b8d65be0eef 153 // ADXL activity methods
RGurav 0:1b8d65be0eef 154 void set_activity_axis(ADXL355_act_ctl_t axis);
RGurav 0:1b8d65be0eef 155 void set_activity_cnt(uint8_t count);
RGurav 0:1b8d65be0eef 156 void set_activity_threshold(uint8_t data_h, uint8_t data_l);
RGurav 0:1b8d65be0eef 157 void set_inactivity();
RGurav 0:1b8d65be0eef 158 // ADXL interrupt methods
RGurav 0:1b8d65be0eef 159 void set_interrupt1_pin(PinName in, ADXL355_intmap_ctl_t mode);
RGurav 0:1b8d65be0eef 160 void set_interrupt2_pin(PinName in, ADXL355_intmap_ctl_t mode);
RGurav 0:1b8d65be0eef 161 void enable_interrupt1();
RGurav 0:1b8d65be0eef 162 void enable_interrupt2();
RGurav 0:1b8d65be0eef 163 void disable_interrupt1();
RGurav 0:1b8d65be0eef 164 void disable_interrupt2();
RGurav 0:1b8d65be0eef 165 void set_polling_interrupt1_pin(uint8_t data);
RGurav 0:1b8d65be0eef 166 void set_polling_interrupt2_pin(uint8_t data);
RGurav 0:1b8d65be0eef 167 bool get_int1();
RGurav 0:1b8d65be0eef 168 bool get_int2();
RGurav 0:1b8d65be0eef 169 // ADXL FIFO methods
RGurav 0:1b8d65be0eef 170 uint8_t fifo_read_nr_of_entries();
RGurav 0:1b8d65be0eef 171 void fifo_setup(uint8_t nr_of_entries);
RGurav 0:1b8d65be0eef 172 uint32_t fifo_read_u32();
RGurav 0:1b8d65be0eef 173 uint64_t fifo_scan();
RGurav 0:1b8d65be0eef 174 // ADXL calibration
RGurav 0:1b8d65be0eef 175 float convert(uint32_t data);
RGurav 0:1b8d65be0eef 176 ADXL355_calibdata_t convert_2p(float angle[11][2], float meas[11][2]);
RGurav 0:1b8d65be0eef 177 ADXL355_calibdata_t convert_3to8p(float angle[11][2], float meas[11][2], int count);
RGurav 0:1b8d65be0eef 178 ADXL355_calibdata_t convert_12p(float angle[11][2], float meas[11][2]);
RGurav 0:1b8d65be0eef 179
RGurav 0:1b8d65be0eef 180 private:
RGurav 0:1b8d65be0eef 181 // SPI adxl355; ///< SPI instance of the ADXL
RGurav 0:1b8d65be0eef 182 SPI adxl355; DigitalOut cs;
RGurav 0:1b8d65be0eef 183 const static uint8_t _DEVICE_AD = 0xAD; // contect of DEVID_AD (only-read) register
RGurav 0:1b8d65be0eef 184 const static uint8_t _RESET = 0x52; // reset code
RGurav 0:1b8d65be0eef 185 const static uint8_t _DUMMY_BYTE = 0xAA; // 10101010
RGurav 0:1b8d65be0eef 186 const static uint8_t _WRITE_REG_CMD = 0x00; // write register
RGurav 0:1b8d65be0eef 187 const static uint8_t _READ_REG_CMD = 0x01; // read register
RGurav 0:1b8d65be0eef 188 const static uint8_t _READ_FIFO_CMD = 0x23; // read FIFO
RGurav 0:1b8d65be0eef 189 const static uint8_t _SPI_MODE = 0; // timing scheme
RGurav 0:1b8d65be0eef 190 };
RGurav 0:1b8d65be0eef 191
RGurav 0:1b8d65be0eef 192 #endif
RGurav 0:1b8d65be0eef 193