Optical Sensor for Heart Rate Monitor IC
BH1790GLC.cpp@4:55075fea807c, 2021-09-16 (annotated)
- Committer:
- mcm
- Date:
- Thu Sep 16 14:25:08 2021 +0000
- Revision:
- 4:55075fea807c
- Parent:
- 2:eb95a49c8a29
The data must be shifted! This bug was fixed for BH1790GLC_GetRawDataOut function.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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mcm | 2:eb95a49c8a29 | 1 | /** |
mcm | 2:eb95a49c8a29 | 2 | * @brief BH1790GLC.cpp |
mcm | 2:eb95a49c8a29 | 3 | * @details Optical Sensor for Heart Rate Monitor IC. |
mcm | 2:eb95a49c8a29 | 4 | * Function file. |
mcm | 2:eb95a49c8a29 | 5 | * |
mcm | 2:eb95a49c8a29 | 6 | * |
mcm | 2:eb95a49c8a29 | 7 | * @return N/A |
mcm | 2:eb95a49c8a29 | 8 | * |
mcm | 2:eb95a49c8a29 | 9 | * @author Manuel Caballero |
mcm | 2:eb95a49c8a29 | 10 | * @date 07/December/2019 |
mcm | 2:eb95a49c8a29 | 11 | * @version 07/December/2019 The ORIGIN |
mcm | 2:eb95a49c8a29 | 12 | * @pre N/A. |
mcm | 2:eb95a49c8a29 | 13 | * @warning N/A |
mcm | 2:eb95a49c8a29 | 14 | * @pre This code belongs to AqueronteBlog ( http://unbarquero.blogspot.com ). |
mcm | 2:eb95a49c8a29 | 15 | */ |
mcm | 2:eb95a49c8a29 | 16 | |
mcm | 2:eb95a49c8a29 | 17 | #include "BH1790GLC.h" |
mcm | 2:eb95a49c8a29 | 18 | |
mcm | 2:eb95a49c8a29 | 19 | |
mcm | 2:eb95a49c8a29 | 20 | BH1790GLC::BH1790GLC ( PinName sda, PinName scl, uint32_t addr, uint32_t freq ) |
mcm | 2:eb95a49c8a29 | 21 | : _i2c ( sda, scl ) |
mcm | 2:eb95a49c8a29 | 22 | , _BH1790GLC_Addr ( addr ) |
mcm | 2:eb95a49c8a29 | 23 | { |
mcm | 2:eb95a49c8a29 | 24 | _i2c.frequency( freq ); |
mcm | 2:eb95a49c8a29 | 25 | } |
mcm | 2:eb95a49c8a29 | 26 | |
mcm | 2:eb95a49c8a29 | 27 | |
mcm | 2:eb95a49c8a29 | 28 | BH1790GLC::~BH1790GLC() |
mcm | 2:eb95a49c8a29 | 29 | { |
mcm | 2:eb95a49c8a29 | 30 | } |
mcm | 2:eb95a49c8a29 | 31 | |
mcm | 2:eb95a49c8a29 | 32 | |
mcm | 2:eb95a49c8a29 | 33 | /** |
mcm | 2:eb95a49c8a29 | 34 | * @brief BH1790GLC_GetManufacturerID ( BH1790GLC_data_t* ) |
mcm | 2:eb95a49c8a29 | 35 | * |
mcm | 2:eb95a49c8a29 | 36 | * @details It gets the manufacturer ID. |
mcm | 2:eb95a49c8a29 | 37 | * |
mcm | 2:eb95a49c8a29 | 38 | * @param[in] N/A. |
mcm | 2:eb95a49c8a29 | 39 | * |
mcm | 2:eb95a49c8a29 | 40 | * @param[out] myManufacturerID: Manufacturer ID. |
mcm | 2:eb95a49c8a29 | 41 | * |
mcm | 2:eb95a49c8a29 | 42 | * |
mcm | 2:eb95a49c8a29 | 43 | * @return Status of BH1790GLC_GetManufacturerID. |
mcm | 2:eb95a49c8a29 | 44 | * |
mcm | 2:eb95a49c8a29 | 45 | * |
mcm | 2:eb95a49c8a29 | 46 | * @author Manuel Caballero |
mcm | 2:eb95a49c8a29 | 47 | * @date 07/December/2019 |
mcm | 2:eb95a49c8a29 | 48 | * @version 07/December/2019 The ORIGIN |
mcm | 2:eb95a49c8a29 | 49 | * @pre N/A |
mcm | 2:eb95a49c8a29 | 50 | * @warning N/A. |
mcm | 2:eb95a49c8a29 | 51 | */ |
mcm | 2:eb95a49c8a29 | 52 | BH1790GLC::BH1790GLC_status_t BH1790GLC::BH1790GLC_GetManufacturerID ( BH1790GLC_data_t* myManufacturerID ) |
mcm | 2:eb95a49c8a29 | 53 | { |
mcm | 2:eb95a49c8a29 | 54 | char cmd = 0; |
mcm | 2:eb95a49c8a29 | 55 | uint32_t aux; |
mcm | 2:eb95a49c8a29 | 56 | |
mcm | 2:eb95a49c8a29 | 57 | /* Read the register */ |
mcm | 2:eb95a49c8a29 | 58 | cmd = BH1790GLC_MANUFACTURER_ID; |
mcm | 2:eb95a49c8a29 | 59 | aux = _i2c.write ( _BH1790GLC_Addr, &cmd, 1U, true ); |
mcm | 2:eb95a49c8a29 | 60 | aux = _i2c.read ( _BH1790GLC_Addr, &cmd, 1U ); |
mcm | 2:eb95a49c8a29 | 61 | |
mcm | 2:eb95a49c8a29 | 62 | |
mcm | 2:eb95a49c8a29 | 63 | /* Parse data */ |
mcm | 2:eb95a49c8a29 | 64 | myManufacturerID->manufacturer_id = cmd; |
mcm | 2:eb95a49c8a29 | 65 | |
mcm | 2:eb95a49c8a29 | 66 | |
mcm | 2:eb95a49c8a29 | 67 | |
mcm | 2:eb95a49c8a29 | 68 | if ( aux == I2C_SUCCESS ) { |
mcm | 2:eb95a49c8a29 | 69 | return BH1790GLC_SUCCESS; |
mcm | 2:eb95a49c8a29 | 70 | } else { |
mcm | 2:eb95a49c8a29 | 71 | return BH1790GLC_FAILURE; |
mcm | 2:eb95a49c8a29 | 72 | } |
mcm | 2:eb95a49c8a29 | 73 | } |
mcm | 2:eb95a49c8a29 | 74 | |
mcm | 2:eb95a49c8a29 | 75 | |
mcm | 2:eb95a49c8a29 | 76 | |
mcm | 2:eb95a49c8a29 | 77 | /** |
mcm | 2:eb95a49c8a29 | 78 | * @brief BH1790GLC_GetPartID ( BH1790GLC_data_t* ) |
mcm | 2:eb95a49c8a29 | 79 | * |
mcm | 2:eb95a49c8a29 | 80 | * @details It gets the part ID. |
mcm | 2:eb95a49c8a29 | 81 | * |
mcm | 2:eb95a49c8a29 | 82 | * @param[in] N/A. |
mcm | 2:eb95a49c8a29 | 83 | * |
mcm | 2:eb95a49c8a29 | 84 | * @param[out] myPartID: Part ID. |
mcm | 2:eb95a49c8a29 | 85 | * |
mcm | 2:eb95a49c8a29 | 86 | * |
mcm | 2:eb95a49c8a29 | 87 | * @return Status of BH1790GLC_GetPartID. |
mcm | 2:eb95a49c8a29 | 88 | * |
mcm | 2:eb95a49c8a29 | 89 | * |
mcm | 2:eb95a49c8a29 | 90 | * @author Manuel Caballero |
mcm | 2:eb95a49c8a29 | 91 | * @date 07/December/2019 |
mcm | 2:eb95a49c8a29 | 92 | * @version 07/December/2019 The ORIGIN |
mcm | 2:eb95a49c8a29 | 93 | * @pre N/A |
mcm | 2:eb95a49c8a29 | 94 | * @warning N/A. |
mcm | 2:eb95a49c8a29 | 95 | */ |
mcm | 2:eb95a49c8a29 | 96 | BH1790GLC::BH1790GLC_status_t BH1790GLC::BH1790GLC_GetPartID ( BH1790GLC_data_t* myPartID ) |
mcm | 2:eb95a49c8a29 | 97 | { |
mcm | 2:eb95a49c8a29 | 98 | char cmd = 0; |
mcm | 2:eb95a49c8a29 | 99 | uint32_t aux; |
mcm | 2:eb95a49c8a29 | 100 | |
mcm | 2:eb95a49c8a29 | 101 | /* Read the register */ |
mcm | 2:eb95a49c8a29 | 102 | cmd = BH1790GLC_PART_ID; |
mcm | 2:eb95a49c8a29 | 103 | aux = _i2c.write ( _BH1790GLC_Addr, &cmd, 1U, true ); |
mcm | 2:eb95a49c8a29 | 104 | aux = _i2c.read ( _BH1790GLC_Addr, &cmd, 1U ); |
mcm | 2:eb95a49c8a29 | 105 | |
mcm | 2:eb95a49c8a29 | 106 | |
mcm | 2:eb95a49c8a29 | 107 | /* Parse data */ |
mcm | 2:eb95a49c8a29 | 108 | myPartID->part_id = cmd; |
mcm | 2:eb95a49c8a29 | 109 | |
mcm | 2:eb95a49c8a29 | 110 | |
mcm | 2:eb95a49c8a29 | 111 | |
mcm | 2:eb95a49c8a29 | 112 | if ( aux == I2C_SUCCESS ) { |
mcm | 2:eb95a49c8a29 | 113 | return BH1790GLC_SUCCESS; |
mcm | 2:eb95a49c8a29 | 114 | } else { |
mcm | 2:eb95a49c8a29 | 115 | return BH1790GLC_FAILURE; |
mcm | 2:eb95a49c8a29 | 116 | } |
mcm | 2:eb95a49c8a29 | 117 | } |
mcm | 2:eb95a49c8a29 | 118 | |
mcm | 2:eb95a49c8a29 | 119 | |
mcm | 2:eb95a49c8a29 | 120 | |
mcm | 2:eb95a49c8a29 | 121 | /** |
mcm | 2:eb95a49c8a29 | 122 | * @brief BH1790GLC_SoftReset ( void ) |
mcm | 2:eb95a49c8a29 | 123 | * |
mcm | 2:eb95a49c8a29 | 124 | * @details It performs a software reset. |
mcm | 2:eb95a49c8a29 | 125 | * |
mcm | 2:eb95a49c8a29 | 126 | * @param[in] N/A. |
mcm | 2:eb95a49c8a29 | 127 | * |
mcm | 2:eb95a49c8a29 | 128 | * @param[out] N/A. |
mcm | 2:eb95a49c8a29 | 129 | * |
mcm | 2:eb95a49c8a29 | 130 | * |
mcm | 2:eb95a49c8a29 | 131 | * @return Status of BH1790GLC_SoftReset. |
mcm | 2:eb95a49c8a29 | 132 | * |
mcm | 2:eb95a49c8a29 | 133 | * |
mcm | 2:eb95a49c8a29 | 134 | * @author Manuel Caballero |
mcm | 2:eb95a49c8a29 | 135 | * @date 07/December/2019 |
mcm | 2:eb95a49c8a29 | 136 | * @version 07/December/2019 The ORIGIN |
mcm | 2:eb95a49c8a29 | 137 | * @pre N/A |
mcm | 2:eb95a49c8a29 | 138 | * @warning N/A. |
mcm | 2:eb95a49c8a29 | 139 | */ |
mcm | 2:eb95a49c8a29 | 140 | BH1790GLC::BH1790GLC_status_t BH1790GLC::BH1790GLC_SoftReset ( void ) |
mcm | 2:eb95a49c8a29 | 141 | { |
mcm | 2:eb95a49c8a29 | 142 | char cmd[2] = { 0 }; |
mcm | 2:eb95a49c8a29 | 143 | uint32_t aux; |
mcm | 2:eb95a49c8a29 | 144 | |
mcm | 2:eb95a49c8a29 | 145 | /* Update the register */ |
mcm | 2:eb95a49c8a29 | 146 | cmd[0] = BH1790GLC_RESET; |
mcm | 2:eb95a49c8a29 | 147 | cmd[1] = RESET_SWRESET_ENABLED; |
mcm | 2:eb95a49c8a29 | 148 | aux = _i2c.write ( _BH1790GLC_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ), false ); |
mcm | 2:eb95a49c8a29 | 149 | |
mcm | 2:eb95a49c8a29 | 150 | |
mcm | 2:eb95a49c8a29 | 151 | |
mcm | 2:eb95a49c8a29 | 152 | if ( aux == I2C_SUCCESS ) { |
mcm | 2:eb95a49c8a29 | 153 | return BH1790GLC_SUCCESS; |
mcm | 2:eb95a49c8a29 | 154 | } else { |
mcm | 2:eb95a49c8a29 | 155 | return BH1790GLC_FAILURE; |
mcm | 2:eb95a49c8a29 | 156 | } |
mcm | 2:eb95a49c8a29 | 157 | } |
mcm | 2:eb95a49c8a29 | 158 | |
mcm | 2:eb95a49c8a29 | 159 | |
mcm | 2:eb95a49c8a29 | 160 | /** |
mcm | 2:eb95a49c8a29 | 161 | * @brief BH1790GLC_StartMeasurement ( BH1790GLC_data_t ) |
mcm | 2:eb95a49c8a29 | 162 | * |
mcm | 2:eb95a49c8a29 | 163 | * @details It triggers a new measurement sample. |
mcm | 2:eb95a49c8a29 | 164 | * |
mcm | 2:eb95a49c8a29 | 165 | * @param[in] myConfData: System control setting and Measurement control setting. |
mcm | 2:eb95a49c8a29 | 166 | * |
mcm | 2:eb95a49c8a29 | 167 | * @param[out] N/A. |
mcm | 2:eb95a49c8a29 | 168 | * |
mcm | 2:eb95a49c8a29 | 169 | * |
mcm | 2:eb95a49c8a29 | 170 | * @return Status of BH1790GLC_StartMeasurement. |
mcm | 2:eb95a49c8a29 | 171 | * |
mcm | 2:eb95a49c8a29 | 172 | * |
mcm | 2:eb95a49c8a29 | 173 | * @author Manuel Caballero |
mcm | 2:eb95a49c8a29 | 174 | * @date 07/December/2019 |
mcm | 2:eb95a49c8a29 | 175 | * @version 07/December/2019 The ORIGIN |
mcm | 2:eb95a49c8a29 | 176 | * @pre Start measurement by writing MEAS_ST=1 after writing RDY=1. Measurement doesn`t |
mcm | 2:eb95a49c8a29 | 177 | * restart if writing MEAS_ST=1 after start measurement. When stop measurement, write SWRESET=1 |
mcm | 2:eb95a49c8a29 | 178 | * without writing MEAS_ST=0 (for changing some parameters as well). |
mcm | 2:eb95a49c8a29 | 179 | * @pre The user MUST RESPECT the measurement time, T_INT = 28ms ( maximum ). |
mcm | 2:eb95a49c8a29 | 180 | * @pre The function uses auto-increment. |
mcm | 2:eb95a49c8a29 | 181 | * @warning System control setting and measurement control setting must be initialized in order to guarantee |
mcm | 2:eb95a49c8a29 | 182 | * the correct behavior of the device. |
mcm | 2:eb95a49c8a29 | 183 | */ |
mcm | 2:eb95a49c8a29 | 184 | BH1790GLC::BH1790GLC_status_t BH1790GLC::BH1790GLC_StartMeasurement ( BH1790GLC_data_t myConfData ) |
mcm | 2:eb95a49c8a29 | 185 | { |
mcm | 2:eb95a49c8a29 | 186 | char cmd[4] = { 0 }; |
mcm | 2:eb95a49c8a29 | 187 | uint32_t aux; |
mcm | 2:eb95a49c8a29 | 188 | |
mcm | 2:eb95a49c8a29 | 189 | /* Write the register */ |
mcm | 2:eb95a49c8a29 | 190 | cmd[0] = BH1790GLC_MEAS_CONTROL1; |
mcm | 2:eb95a49c8a29 | 191 | cmd[1] = ( myConfData.rdy | myConfData.led_lighting_freq | myConfData.rcycle ); |
mcm | 2:eb95a49c8a29 | 192 | cmd[2] = ( myConfData.led_en | myConfData.led_on_time | myConfData.led_current ); |
mcm | 2:eb95a49c8a29 | 193 | cmd[3] = MEAS_START_MEAS_ST_MEASUREMENT_START; |
mcm | 2:eb95a49c8a29 | 194 | aux = _i2c.write ( _BH1790GLC_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ), false ); |
mcm | 2:eb95a49c8a29 | 195 | |
mcm | 2:eb95a49c8a29 | 196 | |
mcm | 2:eb95a49c8a29 | 197 | |
mcm | 2:eb95a49c8a29 | 198 | if ( aux == I2C_SUCCESS ) { |
mcm | 2:eb95a49c8a29 | 199 | return BH1790GLC_SUCCESS; |
mcm | 2:eb95a49c8a29 | 200 | } else { |
mcm | 2:eb95a49c8a29 | 201 | return BH1790GLC_FAILURE; |
mcm | 2:eb95a49c8a29 | 202 | } |
mcm | 2:eb95a49c8a29 | 203 | } |
mcm | 2:eb95a49c8a29 | 204 | |
mcm | 2:eb95a49c8a29 | 205 | |
mcm | 2:eb95a49c8a29 | 206 | |
mcm | 2:eb95a49c8a29 | 207 | /** |
mcm | 2:eb95a49c8a29 | 208 | * @brief BH1790GLC_GetRawDataOut ( void ) |
mcm | 2:eb95a49c8a29 | 209 | * |
mcm | 2:eb95a49c8a29 | 210 | * @details It gets the DATAOUT ( DATAOUT_LEDOFF and DATAOUT_LEDON data ). Raw data value. |
mcm | 2:eb95a49c8a29 | 211 | * |
mcm | 2:eb95a49c8a29 | 212 | * @param[in] N/A. |
mcm | 2:eb95a49c8a29 | 213 | * |
mcm | 2:eb95a49c8a29 | 214 | * @param[out] myRawDataOut: Raw data for DATAOUT_LEDOFF and DATAOUT_LEDON. |
mcm | 2:eb95a49c8a29 | 215 | * |
mcm | 2:eb95a49c8a29 | 216 | * |
mcm | 2:eb95a49c8a29 | 217 | * @return Status of BH1790GLC_GetRawDataOut. |
mcm | 2:eb95a49c8a29 | 218 | * |
mcm | 2:eb95a49c8a29 | 219 | * |
mcm | 2:eb95a49c8a29 | 220 | * @author Manuel Caballero |
mcm | 2:eb95a49c8a29 | 221 | * @date 07/December/2019 |
mcm | 2:eb95a49c8a29 | 222 | * @version 07/December/2019 The ORIGIN |
mcm | 2:eb95a49c8a29 | 223 | * @pre This function uses auto-increment. |
mcm | 2:eb95a49c8a29 | 224 | * @warning N/A. |
mcm | 2:eb95a49c8a29 | 225 | */ |
mcm | 2:eb95a49c8a29 | 226 | BH1790GLC::BH1790GLC_status_t BH1790GLC::BH1790GLC_GetRawDataOut ( BH1790GLC_data_t* myRawDataOut ) |
mcm | 2:eb95a49c8a29 | 227 | { |
mcm | 2:eb95a49c8a29 | 228 | char cmd[4] = { 0 }; |
mcm | 2:eb95a49c8a29 | 229 | uint32_t aux; |
mcm | 2:eb95a49c8a29 | 230 | |
mcm | 2:eb95a49c8a29 | 231 | /* Read the register */ |
mcm | 2:eb95a49c8a29 | 232 | cmd[0] = BH1790GLC_DATAOUT_LEDOFF_LSB; |
mcm | 2:eb95a49c8a29 | 233 | aux = _i2c.write ( _BH1790GLC_Addr, &cmd[0], 1U, true ); |
mcm | 2:eb95a49c8a29 | 234 | aux = _i2c.read ( _BH1790GLC_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ) ); |
mcm | 2:eb95a49c8a29 | 235 | |
mcm | 2:eb95a49c8a29 | 236 | /* Parse the data */ |
mcm | 2:eb95a49c8a29 | 237 | myRawDataOut->dataOut_LED_OFF = cmd[1]; |
mcm | 2:eb95a49c8a29 | 238 | myRawDataOut->dataOut_LED_OFF <<= 8U; |
mcm | 4:55075fea807c | 239 | myRawDataOut->dataOut_LED_OFF |= cmd[0]; |
mcm | 2:eb95a49c8a29 | 240 | |
mcm | 2:eb95a49c8a29 | 241 | myRawDataOut->dataOut_LED_ON = cmd[3]; |
mcm | 2:eb95a49c8a29 | 242 | myRawDataOut->dataOut_LED_ON <<= 8U; |
mcm | 4:55075fea807c | 243 | myRawDataOut->dataOut_LED_ON |= cmd[2]; |
mcm | 2:eb95a49c8a29 | 244 | |
mcm | 2:eb95a49c8a29 | 245 | |
mcm | 2:eb95a49c8a29 | 246 | |
mcm | 2:eb95a49c8a29 | 247 | if ( aux == I2C_SUCCESS ) { |
mcm | 2:eb95a49c8a29 | 248 | return BH1790GLC_SUCCESS; |
mcm | 2:eb95a49c8a29 | 249 | } else { |
mcm | 2:eb95a49c8a29 | 250 | return BH1790GLC_FAILURE; |
mcm | 2:eb95a49c8a29 | 251 | } |
mcm | 2:eb95a49c8a29 | 252 | } |