CO2, humidity, and temperature sensor
SCD30.cpp@2:0d0174b46fd3, 2021-05-07 (annotated)
- Committer:
- mcm
- Date:
- Fri May 07 13:06:14 2021 +0000
- Revision:
- 2:0d0174b46fd3
- Parent:
- 0:c0b0ed4e6574
The driver is completed and ready to be tested.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mcm | 2:0d0174b46fd3 | 1 | /** |
mcm | 2:0d0174b46fd3 | 2 | * @brief SCD30.c |
mcm | 2:0d0174b46fd3 | 3 | * @details CO2, humidity and temperature sensor. |
mcm | 2:0d0174b46fd3 | 4 | * Functions file. |
mcm | 2:0d0174b46fd3 | 5 | * |
mcm | 2:0d0174b46fd3 | 6 | * |
mcm | 2:0d0174b46fd3 | 7 | * @return N/A |
mcm | 2:0d0174b46fd3 | 8 | * |
mcm | 2:0d0174b46fd3 | 9 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 10 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 11 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 12 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 13 | * @warning N/A |
mcm | 2:0d0174b46fd3 | 14 | * @pre This code belongs to Nimbus Centre ( http://www.nimbus.cit.ie ). |
mcm | 2:0d0174b46fd3 | 15 | */ |
mcm | 2:0d0174b46fd3 | 16 | |
mcm | 2:0d0174b46fd3 | 17 | #include "SCD30.h" |
mcm | 2:0d0174b46fd3 | 18 | |
mcm | 2:0d0174b46fd3 | 19 | |
mcm | 2:0d0174b46fd3 | 20 | SCD30::SCD30 ( PinName sda, PinName scl, uint32_t addr, uint32_t freq ) |
mcm | 2:0d0174b46fd3 | 21 | : _i2c ( sda, scl ) |
mcm | 2:0d0174b46fd3 | 22 | , _SCD30_Addr ( addr ) |
mcm | 2:0d0174b46fd3 | 23 | { |
mcm | 2:0d0174b46fd3 | 24 | _i2c.frequency( freq ); |
mcm | 2:0d0174b46fd3 | 25 | } |
mcm | 2:0d0174b46fd3 | 26 | |
mcm | 2:0d0174b46fd3 | 27 | |
mcm | 2:0d0174b46fd3 | 28 | SCD30::~SCD30() |
mcm | 2:0d0174b46fd3 | 29 | { |
mcm | 2:0d0174b46fd3 | 30 | } |
mcm | 2:0d0174b46fd3 | 31 | |
mcm | 2:0d0174b46fd3 | 32 | |
mcm | 2:0d0174b46fd3 | 33 | |
mcm | 2:0d0174b46fd3 | 34 | /** |
mcm | 2:0d0174b46fd3 | 35 | * @brief SCD30_TriggerContinuousMeasurement ( uint16_t ) |
mcm | 2:0d0174b46fd3 | 36 | * @details It triggers continuous measurement with or without ambient pressure compensation. |
mcm | 2:0d0174b46fd3 | 37 | * |
mcm | 2:0d0174b46fd3 | 38 | * @param[in] pressure_compensation: 0 (desactivates pressure compensation) or [700 - 1400]. Pressure in mBar. |
mcm | 2:0d0174b46fd3 | 39 | * |
mcm | 2:0d0174b46fd3 | 40 | * @param[out] N/A |
mcm | 2:0d0174b46fd3 | 41 | * |
mcm | 2:0d0174b46fd3 | 42 | * |
mcm | 2:0d0174b46fd3 | 43 | * @return Status of SCD30_TriggerContinuousMeasurement. |
mcm | 2:0d0174b46fd3 | 44 | * |
mcm | 2:0d0174b46fd3 | 45 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 46 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 47 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 48 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 49 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 50 | */ |
mcm | 2:0d0174b46fd3 | 51 | SCD30::SCD30_status_t SCD30::SCD30_TriggerContinuousMeasurement ( uint16_t pressure_compensation ) |
mcm | 2:0d0174b46fd3 | 52 | { |
mcm | 2:0d0174b46fd3 | 53 | char cmd[5] = { 0U }; |
mcm | 2:0d0174b46fd3 | 54 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 55 | |
mcm | 2:0d0174b46fd3 | 56 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 57 | cmd[0] = (char)( SCD30_TRIGGERS_CONTINUOUS_MEASUREMENT >> 8U ); |
mcm | 2:0d0174b46fd3 | 58 | cmd[1] = (char)( SCD30_TRIGGERS_CONTINUOUS_MEASUREMENT & 0xFF ); |
mcm | 2:0d0174b46fd3 | 59 | cmd[2] = (char)( pressure_compensation >> 8U ); |
mcm | 2:0d0174b46fd3 | 60 | cmd[3] = (char)( pressure_compensation & 0xFF ); |
mcm | 2:0d0174b46fd3 | 61 | cmd[4] = SCD30_CalculateI2C_CRC8 ( pressure_compensation ); |
mcm | 2:0d0174b46fd3 | 62 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ), false ); |
mcm | 2:0d0174b46fd3 | 63 | |
mcm | 2:0d0174b46fd3 | 64 | |
mcm | 2:0d0174b46fd3 | 65 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 66 | { |
mcm | 2:0d0174b46fd3 | 67 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 68 | } |
mcm | 2:0d0174b46fd3 | 69 | else |
mcm | 2:0d0174b46fd3 | 70 | { |
mcm | 2:0d0174b46fd3 | 71 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 72 | } |
mcm | 2:0d0174b46fd3 | 73 | } |
mcm | 2:0d0174b46fd3 | 74 | |
mcm | 2:0d0174b46fd3 | 75 | |
mcm | 2:0d0174b46fd3 | 76 | |
mcm | 2:0d0174b46fd3 | 77 | /** |
mcm | 2:0d0174b46fd3 | 78 | * @brief SCD30_StopContinuousMeasurement ( void ) |
mcm | 2:0d0174b46fd3 | 79 | * @details It stops the continuous measurement. |
mcm | 2:0d0174b46fd3 | 80 | * |
mcm | 2:0d0174b46fd3 | 81 | * @param[in] N/A. |
mcm | 2:0d0174b46fd3 | 82 | * |
mcm | 2:0d0174b46fd3 | 83 | * @param[out] N/A |
mcm | 2:0d0174b46fd3 | 84 | * |
mcm | 2:0d0174b46fd3 | 85 | * |
mcm | 2:0d0174b46fd3 | 86 | * @return Status of SCD30_StopContinuousMeasurement. |
mcm | 2:0d0174b46fd3 | 87 | * |
mcm | 2:0d0174b46fd3 | 88 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 89 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 90 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 91 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 92 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 93 | */ |
mcm | 2:0d0174b46fd3 | 94 | SCD30::SCD30_status_t SCD30::SCD30_StopContinuousMeasurement ( void ) |
mcm | 2:0d0174b46fd3 | 95 | { |
mcm | 2:0d0174b46fd3 | 96 | char cmd[2] = { 0U }; |
mcm | 2:0d0174b46fd3 | 97 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 98 | |
mcm | 2:0d0174b46fd3 | 99 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 100 | cmd[0] = (char)( SCD30_STOP_CONTINUOUS_MEASUREMENT >> 8U ); |
mcm | 2:0d0174b46fd3 | 101 | cmd[1] = (char)( SCD30_STOP_CONTINUOUS_MEASUREMENT & 0xFF ); |
mcm | 2:0d0174b46fd3 | 102 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ), false ); |
mcm | 2:0d0174b46fd3 | 103 | |
mcm | 2:0d0174b46fd3 | 104 | |
mcm | 2:0d0174b46fd3 | 105 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 106 | { |
mcm | 2:0d0174b46fd3 | 107 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 108 | } |
mcm | 2:0d0174b46fd3 | 109 | else |
mcm | 2:0d0174b46fd3 | 110 | { |
mcm | 2:0d0174b46fd3 | 111 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 112 | } |
mcm | 2:0d0174b46fd3 | 113 | } |
mcm | 2:0d0174b46fd3 | 114 | |
mcm | 2:0d0174b46fd3 | 115 | |
mcm | 2:0d0174b46fd3 | 116 | |
mcm | 2:0d0174b46fd3 | 117 | /** |
mcm | 2:0d0174b46fd3 | 118 | * @brief SCD30_SetMeasurementInterval ( uint16_t ) |
mcm | 2:0d0174b46fd3 | 119 | * @details It sets the measurement interval. |
mcm | 2:0d0174b46fd3 | 120 | * |
mcm | 2:0d0174b46fd3 | 121 | * @param[in] measurement_interval: [2 - 1800]. Interval in seconds. |
mcm | 2:0d0174b46fd3 | 122 | * |
mcm | 2:0d0174b46fd3 | 123 | * @param[out] N/A |
mcm | 2:0d0174b46fd3 | 124 | * |
mcm | 2:0d0174b46fd3 | 125 | * |
mcm | 2:0d0174b46fd3 | 126 | * @return Status of SCD30_SetMeasurementInterval. |
mcm | 2:0d0174b46fd3 | 127 | * |
mcm | 2:0d0174b46fd3 | 128 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 129 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 130 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 131 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 132 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 133 | */ |
mcm | 2:0d0174b46fd3 | 134 | SCD30::SCD30_status_t SCD30::SCD30_SetMeasurementInterval ( uint16_t measurement_interval ) |
mcm | 2:0d0174b46fd3 | 135 | { |
mcm | 2:0d0174b46fd3 | 136 | char cmd[5] = { 0U }; |
mcm | 2:0d0174b46fd3 | 137 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 138 | |
mcm | 2:0d0174b46fd3 | 139 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 140 | cmd[0] = (char)( SCD30_STOP_CONTINUOUS_MEASUREMENT >> 8U ); |
mcm | 2:0d0174b46fd3 | 141 | cmd[1] = (char)( SCD30_STOP_CONTINUOUS_MEASUREMENT & 0xFF ); |
mcm | 2:0d0174b46fd3 | 142 | cmd[2] = (char)( measurement_interval >> 8U ); |
mcm | 2:0d0174b46fd3 | 143 | cmd[3] = (char)( measurement_interval & 0xFF ); |
mcm | 2:0d0174b46fd3 | 144 | cmd[4] = SCD30_CalculateI2C_CRC8 ( measurement_interval ); |
mcm | 2:0d0174b46fd3 | 145 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ), false ); |
mcm | 2:0d0174b46fd3 | 146 | |
mcm | 2:0d0174b46fd3 | 147 | |
mcm | 2:0d0174b46fd3 | 148 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 149 | { |
mcm | 2:0d0174b46fd3 | 150 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 151 | } |
mcm | 2:0d0174b46fd3 | 152 | else |
mcm | 2:0d0174b46fd3 | 153 | { |
mcm | 2:0d0174b46fd3 | 154 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 155 | } |
mcm | 2:0d0174b46fd3 | 156 | } |
mcm | 2:0d0174b46fd3 | 157 | |
mcm | 2:0d0174b46fd3 | 158 | |
mcm | 2:0d0174b46fd3 | 159 | |
mcm | 2:0d0174b46fd3 | 160 | /** |
mcm | 2:0d0174b46fd3 | 161 | * @brief SCD30_GetMeasurementInterval ( uint16_t* ) |
mcm | 2:0d0174b46fd3 | 162 | * @details It sets the measurement interval. |
mcm | 2:0d0174b46fd3 | 163 | * |
mcm | 2:0d0174b46fd3 | 164 | * @param[in] N/A. |
mcm | 2:0d0174b46fd3 | 165 | * |
mcm | 2:0d0174b46fd3 | 166 | * @param[out] measurement_interval: Value. Interval in seconds. |
mcm | 2:0d0174b46fd3 | 167 | * |
mcm | 2:0d0174b46fd3 | 168 | * |
mcm | 2:0d0174b46fd3 | 169 | * @return Status of SCD30_GetMeasurementInterval. |
mcm | 2:0d0174b46fd3 | 170 | * |
mcm | 2:0d0174b46fd3 | 171 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 172 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 173 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 174 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 175 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 176 | */ |
mcm | 2:0d0174b46fd3 | 177 | SCD30::SCD30_status_t SCD30::SCD30_GetMeasurementInterval ( uint16_t* measurement_interval ) |
mcm | 2:0d0174b46fd3 | 178 | { |
mcm | 2:0d0174b46fd3 | 179 | char cmd[4] = { 0U }; |
mcm | 2:0d0174b46fd3 | 180 | uint8_t aux_crc; |
mcm | 2:0d0174b46fd3 | 181 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 182 | |
mcm | 2:0d0174b46fd3 | 183 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 184 | cmd[0] = (char)( SCD30_STOP_CONTINUOUS_MEASUREMENT >> 8U ); |
mcm | 2:0d0174b46fd3 | 185 | cmd[1] = (char)( SCD30_STOP_CONTINUOUS_MEASUREMENT & 0xFF ); |
mcm | 2:0d0174b46fd3 | 186 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], 2U, false ); |
mcm | 2:0d0174b46fd3 | 187 | |
mcm | 2:0d0174b46fd3 | 188 | /* Read the register */ |
mcm | 2:0d0174b46fd3 | 189 | aux |= _i2c.read ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ) ); |
mcm | 2:0d0174b46fd3 | 190 | |
mcm | 2:0d0174b46fd3 | 191 | /* Parse the data */ |
mcm | 2:0d0174b46fd3 | 192 | *measurement_interval = cmd[0]; |
mcm | 2:0d0174b46fd3 | 193 | *measurement_interval <<= 8U; |
mcm | 2:0d0174b46fd3 | 194 | *measurement_interval |= cmd[1]; |
mcm | 2:0d0174b46fd3 | 195 | |
mcm | 2:0d0174b46fd3 | 196 | /* Check the CRC */ |
mcm | 2:0d0174b46fd3 | 197 | aux_crc = SCD30_CalculateI2C_CRC8 ( *measurement_interval ); |
mcm | 2:0d0174b46fd3 | 198 | |
mcm | 2:0d0174b46fd3 | 199 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 200 | { |
mcm | 2:0d0174b46fd3 | 201 | if ( ( aux_crc - cmd[2] ) == 0U ) |
mcm | 2:0d0174b46fd3 | 202 | { |
mcm | 2:0d0174b46fd3 | 203 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 204 | } |
mcm | 2:0d0174b46fd3 | 205 | else |
mcm | 2:0d0174b46fd3 | 206 | { |
mcm | 2:0d0174b46fd3 | 207 | return SCD30_DATA_CORRUPTED; |
mcm | 2:0d0174b46fd3 | 208 | } |
mcm | 2:0d0174b46fd3 | 209 | } |
mcm | 2:0d0174b46fd3 | 210 | else |
mcm | 2:0d0174b46fd3 | 211 | { |
mcm | 2:0d0174b46fd3 | 212 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 213 | } |
mcm | 2:0d0174b46fd3 | 214 | } |
mcm | 2:0d0174b46fd3 | 215 | |
mcm | 2:0d0174b46fd3 | 216 | |
mcm | 2:0d0174b46fd3 | 217 | |
mcm | 2:0d0174b46fd3 | 218 | /** |
mcm | 2:0d0174b46fd3 | 219 | * @brief SCD30_GetDataReadyStatus ( SCD30_get_ready_status_bit_t* ) |
mcm | 2:0d0174b46fd3 | 220 | * @details It gets the status when the data is ready to be read. |
mcm | 2:0d0174b46fd3 | 221 | * |
mcm | 2:0d0174b46fd3 | 222 | * @param[in] N/A. |
mcm | 2:0d0174b46fd3 | 223 | * |
mcm | 2:0d0174b46fd3 | 224 | * @param[out] status: Data ready status. |
mcm | 2:0d0174b46fd3 | 225 | * |
mcm | 2:0d0174b46fd3 | 226 | * |
mcm | 2:0d0174b46fd3 | 227 | * @return Status of SCD30_GetDataReadyStatus. |
mcm | 2:0d0174b46fd3 | 228 | * |
mcm | 2:0d0174b46fd3 | 229 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 230 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 231 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 232 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 233 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 234 | */ |
mcm | 2:0d0174b46fd3 | 235 | SCD30::SCD30_status_t SCD30::SCD30_GetDataReadyStatus ( SCD30_get_ready_status_bit_t* status ) |
mcm | 2:0d0174b46fd3 | 236 | { |
mcm | 2:0d0174b46fd3 | 237 | char cmd[3] = { 0U }; |
mcm | 2:0d0174b46fd3 | 238 | uint8_t aux_crc; |
mcm | 2:0d0174b46fd3 | 239 | uint16_t aux_res; |
mcm | 2:0d0174b46fd3 | 240 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 241 | |
mcm | 2:0d0174b46fd3 | 242 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 243 | cmd[0] = (char)( SCD30_GET_DATA_READY_STATUS >> 8U ); |
mcm | 2:0d0174b46fd3 | 244 | cmd[1] = (char)( SCD30_GET_DATA_READY_STATUS & 0xFF ); |
mcm | 2:0d0174b46fd3 | 245 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], 2U, false ); |
mcm | 2:0d0174b46fd3 | 246 | |
mcm | 2:0d0174b46fd3 | 247 | /* Read the register */ |
mcm | 2:0d0174b46fd3 | 248 | aux |= _i2c.read ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ) ); |
mcm | 2:0d0174b46fd3 | 249 | |
mcm | 2:0d0174b46fd3 | 250 | /* Parse the data */ |
mcm | 2:0d0174b46fd3 | 251 | aux_res = cmd[0]; |
mcm | 2:0d0174b46fd3 | 252 | aux_res <<= 8U; |
mcm | 2:0d0174b46fd3 | 253 | aux_res |= cmd[1]; |
mcm | 2:0d0174b46fd3 | 254 | |
mcm | 2:0d0174b46fd3 | 255 | *status = (SCD30_get_ready_status_bit_t)aux_res; |
mcm | 2:0d0174b46fd3 | 256 | |
mcm | 2:0d0174b46fd3 | 257 | /* Check the CRC */ |
mcm | 2:0d0174b46fd3 | 258 | aux_crc = SCD30_CalculateI2C_CRC8 ( *status ); |
mcm | 2:0d0174b46fd3 | 259 | |
mcm | 2:0d0174b46fd3 | 260 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 261 | { |
mcm | 2:0d0174b46fd3 | 262 | if ( ( aux_crc - cmd[2] ) == 0U ) |
mcm | 2:0d0174b46fd3 | 263 | { |
mcm | 2:0d0174b46fd3 | 264 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 265 | } |
mcm | 2:0d0174b46fd3 | 266 | else |
mcm | 2:0d0174b46fd3 | 267 | { |
mcm | 2:0d0174b46fd3 | 268 | return SCD30_DATA_CORRUPTED; |
mcm | 2:0d0174b46fd3 | 269 | } |
mcm | 2:0d0174b46fd3 | 270 | } |
mcm | 2:0d0174b46fd3 | 271 | else |
mcm | 2:0d0174b46fd3 | 272 | { |
mcm | 2:0d0174b46fd3 | 273 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 274 | } |
mcm | 2:0d0174b46fd3 | 275 | } |
mcm | 2:0d0174b46fd3 | 276 | |
mcm | 2:0d0174b46fd3 | 277 | |
mcm | 2:0d0174b46fd3 | 278 | |
mcm | 2:0d0174b46fd3 | 279 | /** |
mcm | 2:0d0174b46fd3 | 280 | * @brief SCD30_ReadRawMeasurement ( SCD30_raw_output_data_t* ) |
mcm | 2:0d0174b46fd3 | 281 | * @details It gets all the raw data. |
mcm | 2:0d0174b46fd3 | 282 | * |
mcm | 2:0d0174b46fd3 | 283 | * @param[in] N/A. |
mcm | 2:0d0174b46fd3 | 284 | * |
mcm | 2:0d0174b46fd3 | 285 | * @param[out] raw_data: All the data in raw values. |
mcm | 2:0d0174b46fd3 | 286 | * |
mcm | 2:0d0174b46fd3 | 287 | * |
mcm | 2:0d0174b46fd3 | 288 | * @return Status of SCD30_ReadRawMeasurement. |
mcm | 2:0d0174b46fd3 | 289 | * |
mcm | 2:0d0174b46fd3 | 290 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 291 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 292 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 293 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 294 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 295 | */ |
mcm | 2:0d0174b46fd3 | 296 | SCD30::SCD30_status_t SCD30::SCD30_ReadRawMeasurement ( SCD30_raw_output_data_t* raw_data ) |
mcm | 2:0d0174b46fd3 | 297 | { |
mcm | 2:0d0174b46fd3 | 298 | char cmd[18] = { 0U }; |
mcm | 2:0d0174b46fd3 | 299 | uint16_t aux_seed; |
mcm | 2:0d0174b46fd3 | 300 | uint8_t aux_crc; |
mcm | 2:0d0174b46fd3 | 301 | uint8_t aux_return = 0U; |
mcm | 2:0d0174b46fd3 | 302 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 303 | |
mcm | 2:0d0174b46fd3 | 304 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 305 | cmd[0] = (char)( SCD30_READ_MEASUREMENT >> 8U ); |
mcm | 2:0d0174b46fd3 | 306 | cmd[1] = (char)( SCD30_READ_MEASUREMENT & 0xFF ); |
mcm | 2:0d0174b46fd3 | 307 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], 2U, false ); |
mcm | 2:0d0174b46fd3 | 308 | |
mcm | 2:0d0174b46fd3 | 309 | /* Read the register */ |
mcm | 2:0d0174b46fd3 | 310 | aux |= _i2c.read ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ) ); |
mcm | 2:0d0174b46fd3 | 311 | |
mcm | 2:0d0174b46fd3 | 312 | /* Parse the data */ |
mcm | 2:0d0174b46fd3 | 313 | raw_data->co2_mmsb = cmd[0]; |
mcm | 2:0d0174b46fd3 | 314 | raw_data->co2_mlsb = cmd[1]; |
mcm | 2:0d0174b46fd3 | 315 | raw_data->co2_mmsb_mlsb_crc = cmd[2]; |
mcm | 2:0d0174b46fd3 | 316 | |
mcm | 2:0d0174b46fd3 | 317 | /* Check the CRC */ |
mcm | 2:0d0174b46fd3 | 318 | aux_seed = raw_data->co2_mmsb; |
mcm | 2:0d0174b46fd3 | 319 | aux_seed <<= 8U; |
mcm | 2:0d0174b46fd3 | 320 | aux_seed |= raw_data->co2_mlsb; |
mcm | 2:0d0174b46fd3 | 321 | aux_crc = SCD30_CalculateI2C_CRC8 ( aux_seed ); |
mcm | 2:0d0174b46fd3 | 322 | |
mcm | 2:0d0174b46fd3 | 323 | if ( ( aux_crc - raw_data->co2_mmsb_mlsb_crc ) != 0U ) |
mcm | 2:0d0174b46fd3 | 324 | { |
mcm | 2:0d0174b46fd3 | 325 | aux_return++; |
mcm | 2:0d0174b46fd3 | 326 | } |
mcm | 2:0d0174b46fd3 | 327 | |
mcm | 2:0d0174b46fd3 | 328 | raw_data->co2_lmsb = cmd[3]; |
mcm | 2:0d0174b46fd3 | 329 | raw_data->co2_llsb = cmd[4]; |
mcm | 2:0d0174b46fd3 | 330 | raw_data->co2_lmsb_llsb_crc = cmd[5]; |
mcm | 2:0d0174b46fd3 | 331 | |
mcm | 2:0d0174b46fd3 | 332 | /* Check the CRC */ |
mcm | 2:0d0174b46fd3 | 333 | aux_seed = raw_data->co2_lmsb; |
mcm | 2:0d0174b46fd3 | 334 | aux_seed <<= 8U; |
mcm | 2:0d0174b46fd3 | 335 | aux_seed |= raw_data->co2_llsb; |
mcm | 2:0d0174b46fd3 | 336 | aux_crc = SCD30_CalculateI2C_CRC8 ( aux_seed ); |
mcm | 2:0d0174b46fd3 | 337 | |
mcm | 2:0d0174b46fd3 | 338 | if ( ( aux_crc - raw_data->co2_lmsb_llsb_crc ) != 0U ) |
mcm | 2:0d0174b46fd3 | 339 | { |
mcm | 2:0d0174b46fd3 | 340 | aux_return++; |
mcm | 2:0d0174b46fd3 | 341 | } |
mcm | 2:0d0174b46fd3 | 342 | |
mcm | 2:0d0174b46fd3 | 343 | raw_data->temperature_mmsb = cmd[6]; |
mcm | 2:0d0174b46fd3 | 344 | raw_data->temperature_mlsb = cmd[7]; |
mcm | 2:0d0174b46fd3 | 345 | raw_data->temperature_mmsb_mlsb_crc = cmd[8]; |
mcm | 2:0d0174b46fd3 | 346 | |
mcm | 2:0d0174b46fd3 | 347 | /* Check the CRC */ |
mcm | 2:0d0174b46fd3 | 348 | aux_seed = raw_data->temperature_mmsb; |
mcm | 2:0d0174b46fd3 | 349 | aux_seed <<= 8U; |
mcm | 2:0d0174b46fd3 | 350 | aux_seed |= raw_data->temperature_mlsb; |
mcm | 2:0d0174b46fd3 | 351 | aux_crc = SCD30_CalculateI2C_CRC8 ( aux_seed ); |
mcm | 2:0d0174b46fd3 | 352 | |
mcm | 2:0d0174b46fd3 | 353 | if ( ( aux_crc - raw_data->temperature_mmsb_mlsb_crc ) != 0U ) |
mcm | 2:0d0174b46fd3 | 354 | { |
mcm | 2:0d0174b46fd3 | 355 | aux_return++; |
mcm | 2:0d0174b46fd3 | 356 | } |
mcm | 2:0d0174b46fd3 | 357 | |
mcm | 2:0d0174b46fd3 | 358 | raw_data->temperature_lmsb = cmd[9]; |
mcm | 2:0d0174b46fd3 | 359 | raw_data->temperature_llsb = cmd[10]; |
mcm | 2:0d0174b46fd3 | 360 | raw_data->temperature_lmsb_llsb_crc = cmd[11]; |
mcm | 2:0d0174b46fd3 | 361 | |
mcm | 2:0d0174b46fd3 | 362 | /* Check the CRC */ |
mcm | 2:0d0174b46fd3 | 363 | aux_seed = raw_data->temperature_lmsb; |
mcm | 2:0d0174b46fd3 | 364 | aux_seed <<= 8U; |
mcm | 2:0d0174b46fd3 | 365 | aux_seed |= raw_data->temperature_llsb; |
mcm | 2:0d0174b46fd3 | 366 | aux_crc = SCD30_CalculateI2C_CRC8 ( aux_seed ); |
mcm | 2:0d0174b46fd3 | 367 | |
mcm | 2:0d0174b46fd3 | 368 | if ( ( aux_crc - raw_data->temperature_lmsb_llsb_crc ) != 0U ) |
mcm | 2:0d0174b46fd3 | 369 | { |
mcm | 2:0d0174b46fd3 | 370 | aux_return++; |
mcm | 2:0d0174b46fd3 | 371 | } |
mcm | 2:0d0174b46fd3 | 372 | |
mcm | 2:0d0174b46fd3 | 373 | raw_data->humidity_mmsb = cmd[12]; |
mcm | 2:0d0174b46fd3 | 374 | raw_data->humidity_mlsb = cmd[13]; |
mcm | 2:0d0174b46fd3 | 375 | raw_data->humidity_mmsb_mlsb_crc = cmd[14]; |
mcm | 2:0d0174b46fd3 | 376 | |
mcm | 2:0d0174b46fd3 | 377 | /* Check the CRC */ |
mcm | 2:0d0174b46fd3 | 378 | aux_seed = raw_data->humidity_mmsb; |
mcm | 2:0d0174b46fd3 | 379 | aux_seed <<= 8U; |
mcm | 2:0d0174b46fd3 | 380 | aux_seed |= raw_data->humidity_mlsb; |
mcm | 2:0d0174b46fd3 | 381 | aux_crc = SCD30_CalculateI2C_CRC8 ( aux_seed ); |
mcm | 2:0d0174b46fd3 | 382 | |
mcm | 2:0d0174b46fd3 | 383 | if ( ( aux_crc - raw_data->humidity_mmsb_mlsb_crc ) != 0U ) |
mcm | 2:0d0174b46fd3 | 384 | { |
mcm | 2:0d0174b46fd3 | 385 | aux_return++; |
mcm | 2:0d0174b46fd3 | 386 | } |
mcm | 2:0d0174b46fd3 | 387 | |
mcm | 2:0d0174b46fd3 | 388 | raw_data->humidity_lmsb = cmd[15]; |
mcm | 2:0d0174b46fd3 | 389 | raw_data->humidity_llsb = cmd[16]; |
mcm | 2:0d0174b46fd3 | 390 | raw_data->humidity_lmsb_llsb_crc = cmd[17]; |
mcm | 2:0d0174b46fd3 | 391 | |
mcm | 2:0d0174b46fd3 | 392 | /* Check the CRC */ |
mcm | 2:0d0174b46fd3 | 393 | aux_seed = raw_data->humidity_lmsb; |
mcm | 2:0d0174b46fd3 | 394 | aux_seed <<= 8U; |
mcm | 2:0d0174b46fd3 | 395 | aux_seed |= raw_data->humidity_llsb; |
mcm | 2:0d0174b46fd3 | 396 | aux_crc = SCD30_CalculateI2C_CRC8 ( aux_seed ); |
mcm | 2:0d0174b46fd3 | 397 | |
mcm | 2:0d0174b46fd3 | 398 | if ( ( aux_crc - raw_data->humidity_lmsb_llsb_crc ) != 0U ) |
mcm | 2:0d0174b46fd3 | 399 | { |
mcm | 2:0d0174b46fd3 | 400 | aux_return++; |
mcm | 2:0d0174b46fd3 | 401 | } |
mcm | 2:0d0174b46fd3 | 402 | |
mcm | 2:0d0174b46fd3 | 403 | |
mcm | 2:0d0174b46fd3 | 404 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 405 | { |
mcm | 2:0d0174b46fd3 | 406 | if ( aux_return == 0U ) |
mcm | 2:0d0174b46fd3 | 407 | { |
mcm | 2:0d0174b46fd3 | 408 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 409 | } |
mcm | 2:0d0174b46fd3 | 410 | else |
mcm | 2:0d0174b46fd3 | 411 | { |
mcm | 2:0d0174b46fd3 | 412 | return SCD30_DATA_CORRUPTED; |
mcm | 2:0d0174b46fd3 | 413 | } |
mcm | 2:0d0174b46fd3 | 414 | } |
mcm | 2:0d0174b46fd3 | 415 | else |
mcm | 2:0d0174b46fd3 | 416 | { |
mcm | 2:0d0174b46fd3 | 417 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 418 | } |
mcm | 2:0d0174b46fd3 | 419 | } |
mcm | 2:0d0174b46fd3 | 420 | |
mcm | 2:0d0174b46fd3 | 421 | |
mcm | 2:0d0174b46fd3 | 422 | |
mcm | 2:0d0174b46fd3 | 423 | /** |
mcm | 2:0d0174b46fd3 | 424 | * @brief SCD30_ReadMeasurement ( SCD30_output_data_t* ) |
mcm | 2:0d0174b46fd3 | 425 | * @details It gets all the data. |
mcm | 2:0d0174b46fd3 | 426 | * |
mcm | 2:0d0174b46fd3 | 427 | * @param[in] N/A. |
mcm | 2:0d0174b46fd3 | 428 | * |
mcm | 2:0d0174b46fd3 | 429 | * @param[out] data: All the data. |
mcm | 2:0d0174b46fd3 | 430 | * |
mcm | 2:0d0174b46fd3 | 431 | * |
mcm | 2:0d0174b46fd3 | 432 | * @return Status of SCD30_ReadMeasurement. |
mcm | 2:0d0174b46fd3 | 433 | * |
mcm | 2:0d0174b46fd3 | 434 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 435 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 436 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 437 | * @pre This function updates the raw data too. |
mcm | 2:0d0174b46fd3 | 438 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 439 | */ |
mcm | 2:0d0174b46fd3 | 440 | SCD30::SCD30_status_t SCD30::SCD30_ReadMeasurement ( SCD30_output_data_t* data ) |
mcm | 2:0d0174b46fd3 | 441 | { |
mcm | 2:0d0174b46fd3 | 442 | SCD30::SCD30_status_t aux; |
mcm | 2:0d0174b46fd3 | 443 | uint32_t data_aux; |
mcm | 2:0d0174b46fd3 | 444 | |
mcm | 2:0d0174b46fd3 | 445 | /* Read all the raw data */ |
mcm | 2:0d0174b46fd3 | 446 | aux = SCD30_ReadRawMeasurement ( (SCD30_raw_output_data_t*)&data->raw ); |
mcm | 2:0d0174b46fd3 | 447 | |
mcm | 2:0d0174b46fd3 | 448 | |
mcm | 2:0d0174b46fd3 | 449 | /* Parse the data */ |
mcm | 2:0d0174b46fd3 | 450 | data_aux = data->raw.co2_mmsb; |
mcm | 2:0d0174b46fd3 | 451 | data_aux <<= 8U; |
mcm | 2:0d0174b46fd3 | 452 | data_aux |= data->raw.co2_mlsb; |
mcm | 2:0d0174b46fd3 | 453 | data_aux <<= 8U; |
mcm | 2:0d0174b46fd3 | 454 | data_aux |= data->raw.co2_lmsb; |
mcm | 2:0d0174b46fd3 | 455 | data_aux <<= 8U; |
mcm | 2:0d0174b46fd3 | 456 | data_aux |= data->raw.co2_llsb; |
mcm | 2:0d0174b46fd3 | 457 | |
mcm | 2:0d0174b46fd3 | 458 | data->processed.co2 = *(float*)&data_aux; |
mcm | 2:0d0174b46fd3 | 459 | |
mcm | 2:0d0174b46fd3 | 460 | data_aux = data->raw.temperature_mmsb; |
mcm | 2:0d0174b46fd3 | 461 | data_aux <<= 8U; |
mcm | 2:0d0174b46fd3 | 462 | data_aux |= data->raw.temperature_mlsb; |
mcm | 2:0d0174b46fd3 | 463 | data_aux <<= 8U; |
mcm | 2:0d0174b46fd3 | 464 | data_aux |= data->raw.temperature_lmsb; |
mcm | 2:0d0174b46fd3 | 465 | data_aux <<= 8U; |
mcm | 2:0d0174b46fd3 | 466 | data_aux |= data->raw.temperature_llsb; |
mcm | 2:0d0174b46fd3 | 467 | |
mcm | 2:0d0174b46fd3 | 468 | data->processed.temperature = *(float*)&data_aux; |
mcm | 2:0d0174b46fd3 | 469 | |
mcm | 2:0d0174b46fd3 | 470 | data_aux = data->raw.humidity_mmsb; |
mcm | 2:0d0174b46fd3 | 471 | data_aux <<= 8U; |
mcm | 2:0d0174b46fd3 | 472 | data_aux |= data->raw.humidity_mlsb; |
mcm | 2:0d0174b46fd3 | 473 | data_aux <<= 8U; |
mcm | 2:0d0174b46fd3 | 474 | data_aux |= data->raw.humidity_lmsb; |
mcm | 2:0d0174b46fd3 | 475 | data_aux <<= 8U; |
mcm | 2:0d0174b46fd3 | 476 | data_aux |= data->raw.humidity_llsb; |
mcm | 2:0d0174b46fd3 | 477 | |
mcm | 2:0d0174b46fd3 | 478 | data->processed.humidity = *(float*)&data_aux; |
mcm | 2:0d0174b46fd3 | 479 | |
mcm | 2:0d0174b46fd3 | 480 | |
mcm | 2:0d0174b46fd3 | 481 | return aux; |
mcm | 2:0d0174b46fd3 | 482 | } |
mcm | 2:0d0174b46fd3 | 483 | |
mcm | 2:0d0174b46fd3 | 484 | |
mcm | 2:0d0174b46fd3 | 485 | |
mcm | 2:0d0174b46fd3 | 486 | /** |
mcm | 2:0d0174b46fd3 | 487 | * @brief SCD30_SetContinuousASC ( SCD30_continuous_auto_selfcal_t ) |
mcm | 2:0d0174b46fd3 | 488 | * @details It enables/disables the continuous automatic self-calibration. |
mcm | 2:0d0174b46fd3 | 489 | * |
mcm | 2:0d0174b46fd3 | 490 | * @param[in] asc: Continuous automatic self-calibration value. |
mcm | 2:0d0174b46fd3 | 491 | * |
mcm | 2:0d0174b46fd3 | 492 | * @param[out] N/A |
mcm | 2:0d0174b46fd3 | 493 | * |
mcm | 2:0d0174b46fd3 | 494 | * |
mcm | 2:0d0174b46fd3 | 495 | * @return Status of SCD30_SetContinuousASC. |
mcm | 2:0d0174b46fd3 | 496 | * |
mcm | 2:0d0174b46fd3 | 497 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 498 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 499 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 500 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 501 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 502 | */ |
mcm | 2:0d0174b46fd3 | 503 | SCD30::SCD30_status_t SCD30::SCD30_SetContinuousASC ( SCD30_continuous_auto_selfcal_t asc ) |
mcm | 2:0d0174b46fd3 | 504 | { |
mcm | 2:0d0174b46fd3 | 505 | char cmd[5] = { 0U }; |
mcm | 2:0d0174b46fd3 | 506 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 507 | |
mcm | 2:0d0174b46fd3 | 508 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 509 | cmd[0] = (char)( SCD30_CONTINUOUS_AUTOMATIC_SELF_CALIBRATION >> 8U ); |
mcm | 2:0d0174b46fd3 | 510 | cmd[1] = (char)( SCD30_CONTINUOUS_AUTOMATIC_SELF_CALIBRATION & 0xFF ); |
mcm | 2:0d0174b46fd3 | 511 | cmd[2] = (char)( asc >> 8U ); |
mcm | 2:0d0174b46fd3 | 512 | cmd[3] = (char)( asc & 0xFF ); |
mcm | 2:0d0174b46fd3 | 513 | cmd[4] = SCD30_CalculateI2C_CRC8 ( asc ); |
mcm | 2:0d0174b46fd3 | 514 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ), false ); |
mcm | 2:0d0174b46fd3 | 515 | |
mcm | 2:0d0174b46fd3 | 516 | |
mcm | 2:0d0174b46fd3 | 517 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 518 | { |
mcm | 2:0d0174b46fd3 | 519 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 520 | } |
mcm | 2:0d0174b46fd3 | 521 | else |
mcm | 2:0d0174b46fd3 | 522 | { |
mcm | 2:0d0174b46fd3 | 523 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 524 | } |
mcm | 2:0d0174b46fd3 | 525 | } |
mcm | 2:0d0174b46fd3 | 526 | |
mcm | 2:0d0174b46fd3 | 527 | |
mcm | 2:0d0174b46fd3 | 528 | |
mcm | 2:0d0174b46fd3 | 529 | /** |
mcm | 2:0d0174b46fd3 | 530 | * @brief SCD30_GetContinuousASC ( SCD30_continuous_auto_selfcal_t* ) |
mcm | 2:0d0174b46fd3 | 531 | * @details It gets the continuous automatic self-calibration bit. |
mcm | 2:0d0174b46fd3 | 532 | * |
mcm | 2:0d0174b46fd3 | 533 | * @param[in] N/A. |
mcm | 2:0d0174b46fd3 | 534 | * |
mcm | 2:0d0174b46fd3 | 535 | * @param[out] asc: Continuous automatic self-calibration value. |
mcm | 2:0d0174b46fd3 | 536 | * |
mcm | 2:0d0174b46fd3 | 537 | * |
mcm | 2:0d0174b46fd3 | 538 | * @return Status of SCD30_GetContinuousASC. |
mcm | 2:0d0174b46fd3 | 539 | * |
mcm | 2:0d0174b46fd3 | 540 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 541 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 542 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 543 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 544 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 545 | */ |
mcm | 2:0d0174b46fd3 | 546 | SCD30::SCD30_status_t SCD30::SCD30_GetContinuousASC ( SCD30_continuous_auto_selfcal_t* asc ) |
mcm | 2:0d0174b46fd3 | 547 | { |
mcm | 2:0d0174b46fd3 | 548 | char cmd[4] = { 0U }; |
mcm | 2:0d0174b46fd3 | 549 | uint8_t aux_crc; |
mcm | 2:0d0174b46fd3 | 550 | uint16_t aux_res; |
mcm | 2:0d0174b46fd3 | 551 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 552 | |
mcm | 2:0d0174b46fd3 | 553 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 554 | cmd[0] = (char)( SCD30_CONTINUOUS_AUTOMATIC_SELF_CALIBRATION >> 8U ); |
mcm | 2:0d0174b46fd3 | 555 | cmd[1] = (char)( SCD30_CONTINUOUS_AUTOMATIC_SELF_CALIBRATION & 0xFF ); |
mcm | 2:0d0174b46fd3 | 556 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], 2U, false ); |
mcm | 2:0d0174b46fd3 | 557 | |
mcm | 2:0d0174b46fd3 | 558 | /* Read the register */ |
mcm | 2:0d0174b46fd3 | 559 | aux |= _i2c.read ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ) ); |
mcm | 2:0d0174b46fd3 | 560 | |
mcm | 2:0d0174b46fd3 | 561 | /* Parse the data */ |
mcm | 2:0d0174b46fd3 | 562 | aux_res = cmd[0]; |
mcm | 2:0d0174b46fd3 | 563 | aux_res <<= 8U; |
mcm | 2:0d0174b46fd3 | 564 | aux_res |= cmd[1]; |
mcm | 2:0d0174b46fd3 | 565 | |
mcm | 2:0d0174b46fd3 | 566 | *asc = (SCD30_continuous_auto_selfcal_t)aux_res; |
mcm | 2:0d0174b46fd3 | 567 | |
mcm | 2:0d0174b46fd3 | 568 | /* Check the CRC */ |
mcm | 2:0d0174b46fd3 | 569 | aux_crc = SCD30_CalculateI2C_CRC8 ( *asc ); |
mcm | 2:0d0174b46fd3 | 570 | |
mcm | 2:0d0174b46fd3 | 571 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 572 | { |
mcm | 2:0d0174b46fd3 | 573 | if ( ( aux_crc - cmd[2] ) == 0U ) |
mcm | 2:0d0174b46fd3 | 574 | { |
mcm | 2:0d0174b46fd3 | 575 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 576 | } |
mcm | 2:0d0174b46fd3 | 577 | else |
mcm | 2:0d0174b46fd3 | 578 | { |
mcm | 2:0d0174b46fd3 | 579 | return SCD30_DATA_CORRUPTED; |
mcm | 2:0d0174b46fd3 | 580 | } |
mcm | 2:0d0174b46fd3 | 581 | } |
mcm | 2:0d0174b46fd3 | 582 | else |
mcm | 2:0d0174b46fd3 | 583 | { |
mcm | 2:0d0174b46fd3 | 584 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 585 | } |
mcm | 2:0d0174b46fd3 | 586 | } |
mcm | 2:0d0174b46fd3 | 587 | |
mcm | 2:0d0174b46fd3 | 588 | |
mcm | 2:0d0174b46fd3 | 589 | |
mcm | 2:0d0174b46fd3 | 590 | /** |
mcm | 2:0d0174b46fd3 | 591 | * @brief SCD30_SetForcedRecalibrationValue ( uint16_t ) |
mcm | 2:0d0174b46fd3 | 592 | * @details It sets the forced recalibration value. |
mcm | 2:0d0174b46fd3 | 593 | * |
mcm | 2:0d0174b46fd3 | 594 | * @param[in] frc: Forced recalibration value. |
mcm | 2:0d0174b46fd3 | 595 | * |
mcm | 2:0d0174b46fd3 | 596 | * @param[out] N/A |
mcm | 2:0d0174b46fd3 | 597 | * |
mcm | 2:0d0174b46fd3 | 598 | * |
mcm | 2:0d0174b46fd3 | 599 | * @return Status of SCD30_SetForcedRecalibrationValue. |
mcm | 2:0d0174b46fd3 | 600 | * |
mcm | 2:0d0174b46fd3 | 601 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 602 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 603 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 604 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 605 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 606 | */ |
mcm | 2:0d0174b46fd3 | 607 | SCD30::SCD30_status_t SCD30::SCD30_SetForcedRecalibrationValue ( uint16_t frc ) |
mcm | 2:0d0174b46fd3 | 608 | { |
mcm | 2:0d0174b46fd3 | 609 | char cmd[5] = { 0U }; |
mcm | 2:0d0174b46fd3 | 610 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 611 | |
mcm | 2:0d0174b46fd3 | 612 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 613 | cmd[0] = (char)( SCD30_SET_FORCED_RECALIBRATION >> 8U ); |
mcm | 2:0d0174b46fd3 | 614 | cmd[1] = (char)( SCD30_SET_FORCED_RECALIBRATION & 0xFF ); |
mcm | 2:0d0174b46fd3 | 615 | cmd[2] = (char)( frc >> 8U ); |
mcm | 2:0d0174b46fd3 | 616 | cmd[3] = (char)( frc & 0xFF ); |
mcm | 2:0d0174b46fd3 | 617 | cmd[4] = SCD30_CalculateI2C_CRC8 ( frc ); |
mcm | 2:0d0174b46fd3 | 618 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ), false ); |
mcm | 2:0d0174b46fd3 | 619 | |
mcm | 2:0d0174b46fd3 | 620 | |
mcm | 2:0d0174b46fd3 | 621 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 622 | { |
mcm | 2:0d0174b46fd3 | 623 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 624 | } |
mcm | 2:0d0174b46fd3 | 625 | else |
mcm | 2:0d0174b46fd3 | 626 | { |
mcm | 2:0d0174b46fd3 | 627 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 628 | } |
mcm | 2:0d0174b46fd3 | 629 | } |
mcm | 2:0d0174b46fd3 | 630 | |
mcm | 2:0d0174b46fd3 | 631 | |
mcm | 2:0d0174b46fd3 | 632 | |
mcm | 2:0d0174b46fd3 | 633 | /** |
mcm | 2:0d0174b46fd3 | 634 | * @brief SCD30_GetForcedRecalibrationValue ( uint16_t* ) |
mcm | 2:0d0174b46fd3 | 635 | * @details It gets the forced recalibration value. |
mcm | 2:0d0174b46fd3 | 636 | * |
mcm | 2:0d0174b46fd3 | 637 | * @param[in] N/A. |
mcm | 2:0d0174b46fd3 | 638 | * |
mcm | 2:0d0174b46fd3 | 639 | * @param[out] frc: Forced recalibration value. |
mcm | 2:0d0174b46fd3 | 640 | * |
mcm | 2:0d0174b46fd3 | 641 | * |
mcm | 2:0d0174b46fd3 | 642 | * @return Status of SCD30_GetForcedRecalibrationValue. |
mcm | 2:0d0174b46fd3 | 643 | * |
mcm | 2:0d0174b46fd3 | 644 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 645 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 646 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 647 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 648 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 649 | */ |
mcm | 2:0d0174b46fd3 | 650 | SCD30::SCD30_status_t SCD30::SCD30_GetForcedRecalibrationValue ( uint16_t* frc ) |
mcm | 2:0d0174b46fd3 | 651 | { |
mcm | 2:0d0174b46fd3 | 652 | char cmd[3] = { 0U }; |
mcm | 2:0d0174b46fd3 | 653 | uint8_t aux_crc; |
mcm | 2:0d0174b46fd3 | 654 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 655 | |
mcm | 2:0d0174b46fd3 | 656 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 657 | cmd[0] = (char)( SCD30_SET_FORCED_RECALIBRATION >> 8U ); |
mcm | 2:0d0174b46fd3 | 658 | cmd[1] = (char)( SCD30_SET_FORCED_RECALIBRATION & 0xFF ); |
mcm | 2:0d0174b46fd3 | 659 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], 2U, false ); |
mcm | 2:0d0174b46fd3 | 660 | |
mcm | 2:0d0174b46fd3 | 661 | /* Read the register */ |
mcm | 2:0d0174b46fd3 | 662 | aux |= _i2c.read ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ) ); |
mcm | 2:0d0174b46fd3 | 663 | |
mcm | 2:0d0174b46fd3 | 664 | /* Parse the data */ |
mcm | 2:0d0174b46fd3 | 665 | *frc = cmd[0]; |
mcm | 2:0d0174b46fd3 | 666 | *frc <<= 8U; |
mcm | 2:0d0174b46fd3 | 667 | *frc |= cmd[1]; |
mcm | 2:0d0174b46fd3 | 668 | |
mcm | 2:0d0174b46fd3 | 669 | /* Check the CRC */ |
mcm | 2:0d0174b46fd3 | 670 | aux_crc = SCD30_CalculateI2C_CRC8 ( *frc ); |
mcm | 2:0d0174b46fd3 | 671 | |
mcm | 2:0d0174b46fd3 | 672 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 673 | { |
mcm | 2:0d0174b46fd3 | 674 | if ( ( aux_crc - cmd[2] ) == 0U ) |
mcm | 2:0d0174b46fd3 | 675 | { |
mcm | 2:0d0174b46fd3 | 676 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 677 | } |
mcm | 2:0d0174b46fd3 | 678 | else |
mcm | 2:0d0174b46fd3 | 679 | { |
mcm | 2:0d0174b46fd3 | 680 | return SCD30_DATA_CORRUPTED; |
mcm | 2:0d0174b46fd3 | 681 | } |
mcm | 2:0d0174b46fd3 | 682 | } |
mcm | 2:0d0174b46fd3 | 683 | else |
mcm | 2:0d0174b46fd3 | 684 | { |
mcm | 2:0d0174b46fd3 | 685 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 686 | } |
mcm | 2:0d0174b46fd3 | 687 | } |
mcm | 2:0d0174b46fd3 | 688 | |
mcm | 2:0d0174b46fd3 | 689 | |
mcm | 2:0d0174b46fd3 | 690 | |
mcm | 2:0d0174b46fd3 | 691 | /** |
mcm | 2:0d0174b46fd3 | 692 | * @brief SCD30_SetTemperatureOffsetValue ( uint16_t ) |
mcm | 2:0d0174b46fd3 | 693 | * @details It sets the temperature offset value. |
mcm | 2:0d0174b46fd3 | 694 | * |
mcm | 2:0d0174b46fd3 | 695 | * @param[in] temp_offset: Temperature offset value. |
mcm | 2:0d0174b46fd3 | 696 | * |
mcm | 2:0d0174b46fd3 | 697 | * @param[out] N/A |
mcm | 2:0d0174b46fd3 | 698 | * |
mcm | 2:0d0174b46fd3 | 699 | * |
mcm | 2:0d0174b46fd3 | 700 | * @return Status of SCD30_SetTemperatureOffsetValue. |
mcm | 2:0d0174b46fd3 | 701 | * |
mcm | 2:0d0174b46fd3 | 702 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 703 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 704 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 705 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 706 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 707 | */ |
mcm | 2:0d0174b46fd3 | 708 | SCD30::SCD30_status_t SCD30::SCD30_SetTemperatureOffsetValue ( uint16_t temp_offset ) |
mcm | 2:0d0174b46fd3 | 709 | { |
mcm | 2:0d0174b46fd3 | 710 | char cmd[5] = { 0U }; |
mcm | 2:0d0174b46fd3 | 711 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 712 | |
mcm | 2:0d0174b46fd3 | 713 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 714 | cmd[0] = (char)( SCD30_SET_TEMPERATURE_OFFSET >> 8U ); |
mcm | 2:0d0174b46fd3 | 715 | cmd[1] = (char)( SCD30_SET_TEMPERATURE_OFFSET & 0xFF ); |
mcm | 2:0d0174b46fd3 | 716 | cmd[2] = (char)( temp_offset >> 8U ); |
mcm | 2:0d0174b46fd3 | 717 | cmd[3] = (char)( temp_offset & 0xFF ); |
mcm | 2:0d0174b46fd3 | 718 | cmd[4] = SCD30_CalculateI2C_CRC8 ( temp_offset ); |
mcm | 2:0d0174b46fd3 | 719 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ), false ); |
mcm | 2:0d0174b46fd3 | 720 | |
mcm | 2:0d0174b46fd3 | 721 | |
mcm | 2:0d0174b46fd3 | 722 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 723 | { |
mcm | 2:0d0174b46fd3 | 724 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 725 | } |
mcm | 2:0d0174b46fd3 | 726 | else |
mcm | 2:0d0174b46fd3 | 727 | { |
mcm | 2:0d0174b46fd3 | 728 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 729 | } |
mcm | 2:0d0174b46fd3 | 730 | } |
mcm | 2:0d0174b46fd3 | 731 | |
mcm | 2:0d0174b46fd3 | 732 | |
mcm | 2:0d0174b46fd3 | 733 | |
mcm | 2:0d0174b46fd3 | 734 | /** |
mcm | 2:0d0174b46fd3 | 735 | * @brief SCD30_GetTemperatureOffsetValue ( uint16_t* ) |
mcm | 2:0d0174b46fd3 | 736 | * @details It gets the temperature offset value. |
mcm | 2:0d0174b46fd3 | 737 | * |
mcm | 2:0d0174b46fd3 | 738 | * @param[in] N/A. |
mcm | 2:0d0174b46fd3 | 739 | * |
mcm | 2:0d0174b46fd3 | 740 | * @param[out] temp_offset: Temperature offset value. |
mcm | 2:0d0174b46fd3 | 741 | * |
mcm | 2:0d0174b46fd3 | 742 | * |
mcm | 2:0d0174b46fd3 | 743 | * @return Status of SCD30_GetTemperatureOffsetValue. |
mcm | 2:0d0174b46fd3 | 744 | * |
mcm | 2:0d0174b46fd3 | 745 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 746 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 747 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 748 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 749 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 750 | */ |
mcm | 2:0d0174b46fd3 | 751 | SCD30::SCD30_status_t SCD30::SCD30_GetTemperatureOffsetValue ( uint16_t* temp_offset ) |
mcm | 2:0d0174b46fd3 | 752 | { |
mcm | 2:0d0174b46fd3 | 753 | char cmd[3] = { 0U }; |
mcm | 2:0d0174b46fd3 | 754 | uint8_t aux_crc; |
mcm | 2:0d0174b46fd3 | 755 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 756 | |
mcm | 2:0d0174b46fd3 | 757 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 758 | cmd[0] = (char)( SCD30_SET_FORCED_RECALIBRATION >> 8U ); |
mcm | 2:0d0174b46fd3 | 759 | cmd[1] = (char)( SCD30_SET_FORCED_RECALIBRATION & 0xFF ); |
mcm | 2:0d0174b46fd3 | 760 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], 2U, false ); |
mcm | 2:0d0174b46fd3 | 761 | |
mcm | 2:0d0174b46fd3 | 762 | /* Read the register */ |
mcm | 2:0d0174b46fd3 | 763 | aux |= _i2c.read ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ) ); |
mcm | 2:0d0174b46fd3 | 764 | |
mcm | 2:0d0174b46fd3 | 765 | /* Parse the data */ |
mcm | 2:0d0174b46fd3 | 766 | *temp_offset = cmd[0]; |
mcm | 2:0d0174b46fd3 | 767 | *temp_offset <<= 8U; |
mcm | 2:0d0174b46fd3 | 768 | *temp_offset |= cmd[1]; |
mcm | 2:0d0174b46fd3 | 769 | |
mcm | 2:0d0174b46fd3 | 770 | /* Check the CRC */ |
mcm | 2:0d0174b46fd3 | 771 | aux_crc = SCD30_CalculateI2C_CRC8 ( *temp_offset ); |
mcm | 2:0d0174b46fd3 | 772 | |
mcm | 2:0d0174b46fd3 | 773 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 774 | { |
mcm | 2:0d0174b46fd3 | 775 | if ( ( aux_crc - cmd[2] ) == 0U ) |
mcm | 2:0d0174b46fd3 | 776 | { |
mcm | 2:0d0174b46fd3 | 777 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 778 | } |
mcm | 2:0d0174b46fd3 | 779 | else |
mcm | 2:0d0174b46fd3 | 780 | { |
mcm | 2:0d0174b46fd3 | 781 | return SCD30_DATA_CORRUPTED; |
mcm | 2:0d0174b46fd3 | 782 | } |
mcm | 2:0d0174b46fd3 | 783 | } |
mcm | 2:0d0174b46fd3 | 784 | else |
mcm | 2:0d0174b46fd3 | 785 | { |
mcm | 2:0d0174b46fd3 | 786 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 787 | } |
mcm | 2:0d0174b46fd3 | 788 | } |
mcm | 2:0d0174b46fd3 | 789 | |
mcm | 2:0d0174b46fd3 | 790 | |
mcm | 2:0d0174b46fd3 | 791 | |
mcm | 2:0d0174b46fd3 | 792 | /** |
mcm | 2:0d0174b46fd3 | 793 | * @brief SCD30_SetAltitudeCompensationValue ( uint16_t ) |
mcm | 2:0d0174b46fd3 | 794 | * @details It sets the altitude compensation value. |
mcm | 2:0d0174b46fd3 | 795 | * |
mcm | 2:0d0174b46fd3 | 796 | * @param[in] alt_comp: Altitude compensation value. |
mcm | 2:0d0174b46fd3 | 797 | * |
mcm | 2:0d0174b46fd3 | 798 | * @param[out] N/A |
mcm | 2:0d0174b46fd3 | 799 | * |
mcm | 2:0d0174b46fd3 | 800 | * |
mcm | 2:0d0174b46fd3 | 801 | * @return Status of SCD30_SetAltitudeCompensationValue. |
mcm | 2:0d0174b46fd3 | 802 | * |
mcm | 2:0d0174b46fd3 | 803 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 804 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 805 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 806 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 807 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 808 | */ |
mcm | 2:0d0174b46fd3 | 809 | SCD30::SCD30_status_t SCD30::SCD30_SetAltitudeCompensationValue ( uint16_t alt_comp ) |
mcm | 2:0d0174b46fd3 | 810 | { |
mcm | 2:0d0174b46fd3 | 811 | char cmd[5] = { 0U }; |
mcm | 2:0d0174b46fd3 | 812 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 813 | |
mcm | 2:0d0174b46fd3 | 814 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 815 | cmd[0] = (char)( SCD30_SET_ALTITUDE_COMPENSATION >> 8U ); |
mcm | 2:0d0174b46fd3 | 816 | cmd[1] = (char)( SCD30_SET_ALTITUDE_COMPENSATION & 0xFF ); |
mcm | 2:0d0174b46fd3 | 817 | cmd[2] = (char)( alt_comp >> 8U ); |
mcm | 2:0d0174b46fd3 | 818 | cmd[3] = (char)( alt_comp & 0xFF ); |
mcm | 2:0d0174b46fd3 | 819 | cmd[4] = SCD30_CalculateI2C_CRC8 ( alt_comp ); |
mcm | 2:0d0174b46fd3 | 820 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ), false ); |
mcm | 2:0d0174b46fd3 | 821 | |
mcm | 2:0d0174b46fd3 | 822 | |
mcm | 2:0d0174b46fd3 | 823 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 824 | { |
mcm | 2:0d0174b46fd3 | 825 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 826 | } |
mcm | 2:0d0174b46fd3 | 827 | else |
mcm | 2:0d0174b46fd3 | 828 | { |
mcm | 2:0d0174b46fd3 | 829 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 830 | } |
mcm | 2:0d0174b46fd3 | 831 | } |
mcm | 2:0d0174b46fd3 | 832 | |
mcm | 2:0d0174b46fd3 | 833 | |
mcm | 2:0d0174b46fd3 | 834 | |
mcm | 2:0d0174b46fd3 | 835 | /** |
mcm | 2:0d0174b46fd3 | 836 | * @brief SCD30_GetAltitudeCompensationValue ( uint16_t* ) |
mcm | 2:0d0174b46fd3 | 837 | * @details It gets the altitude compensation value. |
mcm | 2:0d0174b46fd3 | 838 | * |
mcm | 2:0d0174b46fd3 | 839 | * @param[in] N/A. |
mcm | 2:0d0174b46fd3 | 840 | * |
mcm | 2:0d0174b46fd3 | 841 | * @param[out] alt_comp: Altitude compensation value. |
mcm | 2:0d0174b46fd3 | 842 | * |
mcm | 2:0d0174b46fd3 | 843 | * |
mcm | 2:0d0174b46fd3 | 844 | * @return Status of SCD30_GetAltitudeCompensationValue. |
mcm | 2:0d0174b46fd3 | 845 | * |
mcm | 2:0d0174b46fd3 | 846 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 847 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 848 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 849 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 850 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 851 | */ |
mcm | 2:0d0174b46fd3 | 852 | SCD30::SCD30_status_t SCD30::SCD30_GetAltitudeCompensationValue ( uint16_t* alt_comp ) |
mcm | 2:0d0174b46fd3 | 853 | { |
mcm | 2:0d0174b46fd3 | 854 | char cmd[3] = { 0U }; |
mcm | 2:0d0174b46fd3 | 855 | uint8_t aux_crc; |
mcm | 2:0d0174b46fd3 | 856 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 857 | |
mcm | 2:0d0174b46fd3 | 858 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 859 | cmd[0] = (char)( SCD30_SET_ALTITUDE_COMPENSATION >> 8U ); |
mcm | 2:0d0174b46fd3 | 860 | cmd[1] = (char)( SCD30_SET_ALTITUDE_COMPENSATION & 0xFF ); |
mcm | 2:0d0174b46fd3 | 861 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], 2U, false ); |
mcm | 2:0d0174b46fd3 | 862 | |
mcm | 2:0d0174b46fd3 | 863 | /* Read the register */ |
mcm | 2:0d0174b46fd3 | 864 | aux |= _i2c.read ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ) ); |
mcm | 2:0d0174b46fd3 | 865 | |
mcm | 2:0d0174b46fd3 | 866 | /* Parse the data */ |
mcm | 2:0d0174b46fd3 | 867 | *alt_comp = cmd[0]; |
mcm | 2:0d0174b46fd3 | 868 | *alt_comp <<= 8U; |
mcm | 2:0d0174b46fd3 | 869 | *alt_comp |= cmd[1]; |
mcm | 2:0d0174b46fd3 | 870 | |
mcm | 2:0d0174b46fd3 | 871 | /* Check the CRC */ |
mcm | 2:0d0174b46fd3 | 872 | aux_crc = SCD30_CalculateI2C_CRC8 ( *alt_comp ); |
mcm | 2:0d0174b46fd3 | 873 | |
mcm | 2:0d0174b46fd3 | 874 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 875 | { |
mcm | 2:0d0174b46fd3 | 876 | if ( ( aux_crc - cmd[2] ) == 0U ) |
mcm | 2:0d0174b46fd3 | 877 | { |
mcm | 2:0d0174b46fd3 | 878 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 879 | } |
mcm | 2:0d0174b46fd3 | 880 | else |
mcm | 2:0d0174b46fd3 | 881 | { |
mcm | 2:0d0174b46fd3 | 882 | return SCD30_DATA_CORRUPTED; |
mcm | 2:0d0174b46fd3 | 883 | } |
mcm | 2:0d0174b46fd3 | 884 | } |
mcm | 2:0d0174b46fd3 | 885 | else |
mcm | 2:0d0174b46fd3 | 886 | { |
mcm | 2:0d0174b46fd3 | 887 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 888 | } |
mcm | 2:0d0174b46fd3 | 889 | } |
mcm | 2:0d0174b46fd3 | 890 | |
mcm | 2:0d0174b46fd3 | 891 | |
mcm | 2:0d0174b46fd3 | 892 | |
mcm | 2:0d0174b46fd3 | 893 | /** |
mcm | 2:0d0174b46fd3 | 894 | * @brief SCD30_GetFirmwareVersion ( SCD30_fw_version_t* ) |
mcm | 2:0d0174b46fd3 | 895 | * @details It gets the firmware version value. |
mcm | 2:0d0174b46fd3 | 896 | * |
mcm | 2:0d0174b46fd3 | 897 | * @param[in] N/A. |
mcm | 2:0d0174b46fd3 | 898 | * |
mcm | 2:0d0174b46fd3 | 899 | * @param[out] fw: Firmware version value. |
mcm | 2:0d0174b46fd3 | 900 | * |
mcm | 2:0d0174b46fd3 | 901 | * |
mcm | 2:0d0174b46fd3 | 902 | * @return Status of SCD30_GetFirmwareVersion. |
mcm | 2:0d0174b46fd3 | 903 | * |
mcm | 2:0d0174b46fd3 | 904 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 905 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 906 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 907 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 908 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 909 | */ |
mcm | 2:0d0174b46fd3 | 910 | SCD30::SCD30_status_t SCD30::SCD30_GetFirmwareVersion ( SCD30_fw_version_t* fw ) |
mcm | 2:0d0174b46fd3 | 911 | { |
mcm | 2:0d0174b46fd3 | 912 | char cmd[3] = { 0U }; |
mcm | 2:0d0174b46fd3 | 913 | uint16_t aux_seed; |
mcm | 2:0d0174b46fd3 | 914 | uint8_t aux_crc; |
mcm | 2:0d0174b46fd3 | 915 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 916 | |
mcm | 2:0d0174b46fd3 | 917 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 918 | cmd[0] = (char)( SCD30_FIRMWARE_VERSION >> 8U ); |
mcm | 2:0d0174b46fd3 | 919 | cmd[1] = (char)( SCD30_FIRMWARE_VERSION & 0xFF ); |
mcm | 2:0d0174b46fd3 | 920 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], 2U, false ); |
mcm | 2:0d0174b46fd3 | 921 | |
mcm | 2:0d0174b46fd3 | 922 | /* Read the register */ |
mcm | 2:0d0174b46fd3 | 923 | aux |= _i2c.read ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ) ); |
mcm | 2:0d0174b46fd3 | 924 | |
mcm | 2:0d0174b46fd3 | 925 | /* Parse the data */ |
mcm | 2:0d0174b46fd3 | 926 | fw->version_major = cmd[0]; |
mcm | 2:0d0174b46fd3 | 927 | fw->version_minor = cmd[1]; |
mcm | 2:0d0174b46fd3 | 928 | |
mcm | 2:0d0174b46fd3 | 929 | /* Check the CRC */ |
mcm | 2:0d0174b46fd3 | 930 | aux_seed = fw->version_major; |
mcm | 2:0d0174b46fd3 | 931 | aux_seed <<= 8U; |
mcm | 2:0d0174b46fd3 | 932 | aux_seed |= fw->version_minor; |
mcm | 2:0d0174b46fd3 | 933 | aux_crc = SCD30_CalculateI2C_CRC8 ( aux_seed ); |
mcm | 2:0d0174b46fd3 | 934 | |
mcm | 2:0d0174b46fd3 | 935 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 936 | { |
mcm | 2:0d0174b46fd3 | 937 | if ( ( aux_crc - cmd[2] ) == 0U ) |
mcm | 2:0d0174b46fd3 | 938 | { |
mcm | 2:0d0174b46fd3 | 939 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 940 | } |
mcm | 2:0d0174b46fd3 | 941 | else |
mcm | 2:0d0174b46fd3 | 942 | { |
mcm | 2:0d0174b46fd3 | 943 | return SCD30_DATA_CORRUPTED; |
mcm | 2:0d0174b46fd3 | 944 | } |
mcm | 2:0d0174b46fd3 | 945 | } |
mcm | 2:0d0174b46fd3 | 946 | else |
mcm | 2:0d0174b46fd3 | 947 | { |
mcm | 2:0d0174b46fd3 | 948 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 949 | } |
mcm | 2:0d0174b46fd3 | 950 | } |
mcm | 2:0d0174b46fd3 | 951 | |
mcm | 2:0d0174b46fd3 | 952 | |
mcm | 2:0d0174b46fd3 | 953 | |
mcm | 2:0d0174b46fd3 | 954 | /** |
mcm | 2:0d0174b46fd3 | 955 | * @brief SCD30_SoftReset ( void ) |
mcm | 2:0d0174b46fd3 | 956 | * @details It performs a software reset. |
mcm | 2:0d0174b46fd3 | 957 | * |
mcm | 2:0d0174b46fd3 | 958 | * @param[in] N/A. |
mcm | 2:0d0174b46fd3 | 959 | * |
mcm | 2:0d0174b46fd3 | 960 | * @param[out] N/A. |
mcm | 2:0d0174b46fd3 | 961 | * |
mcm | 2:0d0174b46fd3 | 962 | * |
mcm | 2:0d0174b46fd3 | 963 | * @return Status of SCD30_SoftReset. |
mcm | 2:0d0174b46fd3 | 964 | * |
mcm | 2:0d0174b46fd3 | 965 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 966 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 967 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 968 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 969 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 970 | */ |
mcm | 2:0d0174b46fd3 | 971 | SCD30::SCD30_status_t SCD30::SCD30_SoftReset ( void ) |
mcm | 2:0d0174b46fd3 | 972 | { |
mcm | 2:0d0174b46fd3 | 973 | char cmd[2] = { 0U }; |
mcm | 2:0d0174b46fd3 | 974 | uint32_t aux; |
mcm | 2:0d0174b46fd3 | 975 | |
mcm | 2:0d0174b46fd3 | 976 | /* Write the register */ |
mcm | 2:0d0174b46fd3 | 977 | cmd[0] = (char)( SCD30_SOFTRESET >> 8U ); |
mcm | 2:0d0174b46fd3 | 978 | cmd[1] = (char)( SCD30_SOFTRESET & 0xFF ); |
mcm | 2:0d0174b46fd3 | 979 | aux = _i2c.write ( _SCD30_Addr, &cmd[0], sizeof( cmd )/sizeof( cmd[0] ), false ); |
mcm | 2:0d0174b46fd3 | 980 | |
mcm | 2:0d0174b46fd3 | 981 | |
mcm | 2:0d0174b46fd3 | 982 | |
mcm | 2:0d0174b46fd3 | 983 | if ( aux == I2C_SUCCESS ) |
mcm | 2:0d0174b46fd3 | 984 | { |
mcm | 2:0d0174b46fd3 | 985 | return SCD30_SUCCESS; |
mcm | 2:0d0174b46fd3 | 986 | } |
mcm | 2:0d0174b46fd3 | 987 | else |
mcm | 2:0d0174b46fd3 | 988 | { |
mcm | 2:0d0174b46fd3 | 989 | return SCD30_FAILURE; |
mcm | 2:0d0174b46fd3 | 990 | } |
mcm | 2:0d0174b46fd3 | 991 | } |
mcm | 2:0d0174b46fd3 | 992 | |
mcm | 2:0d0174b46fd3 | 993 | |
mcm | 2:0d0174b46fd3 | 994 | |
mcm | 2:0d0174b46fd3 | 995 | /** |
mcm | 2:0d0174b46fd3 | 996 | * @brief SCD30_CalculateI2C_CRC8 ( uint16_t ) |
mcm | 2:0d0174b46fd3 | 997 | * @details It calculates the I2C checksum calculation (CRC-8). |
mcm | 2:0d0174b46fd3 | 998 | * |
mcm | 2:0d0174b46fd3 | 999 | * @param[in] seed: Data to calculate the CRC-8. |
mcm | 2:0d0174b46fd3 | 1000 | * |
mcm | 2:0d0174b46fd3 | 1001 | * @param[out] N/A. |
mcm | 2:0d0174b46fd3 | 1002 | * |
mcm | 2:0d0174b46fd3 | 1003 | * |
mcm | 2:0d0174b46fd3 | 1004 | * @return Status of SCD30_CalculateI2C_CRC8. |
mcm | 2:0d0174b46fd3 | 1005 | * |
mcm | 2:0d0174b46fd3 | 1006 | * @author Manuel Caballero |
mcm | 2:0d0174b46fd3 | 1007 | * @date 07/May/2021 |
mcm | 2:0d0174b46fd3 | 1008 | * @version 07/May/2021 The ORIGIN |
mcm | 2:0d0174b46fd3 | 1009 | * @pre N/A |
mcm | 2:0d0174b46fd3 | 1010 | * @warning N/A. |
mcm | 2:0d0174b46fd3 | 1011 | */ |
mcm | 2:0d0174b46fd3 | 1012 | uint8_t SCD30::SCD30_CalculateI2C_CRC8 ( uint16_t seed ) |
mcm | 2:0d0174b46fd3 | 1013 | { |
mcm | 2:0d0174b46fd3 | 1014 | uint8_t bit; |
mcm | 2:0d0174b46fd3 | 1015 | uint8_t crc = SCD30_CRC8_INITIALIZATION; |
mcm | 2:0d0174b46fd3 | 1016 | |
mcm | 2:0d0174b46fd3 | 1017 | // calculates 8-Bit checksum with given polynomial |
mcm | 2:0d0174b46fd3 | 1018 | |
mcm | 2:0d0174b46fd3 | 1019 | crc ^= ( seed >> 8U ) & 255U; |
mcm | 2:0d0174b46fd3 | 1020 | for(bit = 8U; bit > 0U; --bit) |
mcm | 2:0d0174b46fd3 | 1021 | { |
mcm | 2:0d0174b46fd3 | 1022 | if( crc & 0x80U ) |
mcm | 2:0d0174b46fd3 | 1023 | { |
mcm | 2:0d0174b46fd3 | 1024 | crc = ( crc << 1U ) ^ SCD30_CRC8_POLYNOMIAL; |
mcm | 2:0d0174b46fd3 | 1025 | } |
mcm | 2:0d0174b46fd3 | 1026 | else |
mcm | 2:0d0174b46fd3 | 1027 | { |
mcm | 2:0d0174b46fd3 | 1028 | crc = ( crc << 1U ); |
mcm | 2:0d0174b46fd3 | 1029 | } |
mcm | 2:0d0174b46fd3 | 1030 | } |
mcm | 2:0d0174b46fd3 | 1031 | |
mcm | 2:0d0174b46fd3 | 1032 | crc ^= seed & 255U; |
mcm | 2:0d0174b46fd3 | 1033 | for( bit = 8U; bit > 0U; --bit ) |
mcm | 2:0d0174b46fd3 | 1034 | { |
mcm | 2:0d0174b46fd3 | 1035 | if( crc & 0x80 ) |
mcm | 2:0d0174b46fd3 | 1036 | { |
mcm | 2:0d0174b46fd3 | 1037 | crc = ( crc << 1U ) ^ SCD30_CRC8_POLYNOMIAL; |
mcm | 2:0d0174b46fd3 | 1038 | } |
mcm | 2:0d0174b46fd3 | 1039 | else |
mcm | 2:0d0174b46fd3 | 1040 | { |
mcm | 2:0d0174b46fd3 | 1041 | crc = ( crc << 1U ); |
mcm | 2:0d0174b46fd3 | 1042 | } |
mcm | 2:0d0174b46fd3 | 1043 | } |
mcm | 2:0d0174b46fd3 | 1044 | |
mcm | 2:0d0174b46fd3 | 1045 | return crc; |
mcm | 2:0d0174b46fd3 | 1046 | } |