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Diffstat (limited to 'include/unused/sensorAltimeter.hpp')
| -rw-r--r-- | include/unused/sensorAltimeter.hpp | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/include/unused/sensorAltimeter.hpp b/include/unused/sensorAltimeter.hpp new file mode 100644 index 0000000..aa3a3cd --- /dev/null +++ b/include/unused/sensorAltimeter.hpp @@ -0,0 +1,165 @@ +#pragma once +#include "sensorI2C.hpp" +#include <string> + +/* +Header file for driver for MPL3115a2 breakout, based heavily on https://github.com/adafruit/Adafruit_MPL3115A2_Library/tree/master +Based on register declarations found https://cdn-shop.adafruit.com/datasheets/1893_datasheet.pdf +Designed using subclass for I2C handler for Beaglebone Black +*/ + +class AltimeterSensor : public sensorI2C { + + + private: + double internalTemperature = 0; + double internalAltitude = 0; + + //ENUMS COPIED DIRECTLY FROM ADAFRUIT IMPLEMENTATION + /** MPL3115A2 registers **/ + enum { + MPL3115A2_REGISTER_STATUS = (0x00), + + MPL3115A2_REGISTER_PRESSURE_MSB = (0x01), + MPL3115A2_REGISTER_PRESSURE_CSB = (0x02), + MPL3115A2_REGISTER_PRESSURE_LSB = (0x03), + + MPL3115A2_REGISTER_TEMP_MSB = (0x04), + MPL3115A2_REGISTER_TEMP_LSB = (0x05), + + MPL3115A2_REGISTER_DR_STATUS = (0x06), + + MPL3115A2_OUT_P_DELTA_MSB = (0x07), + MPL3115A2_OUT_P_DELTA_CSB = (0x08), + MPL3115A2_OUT_P_DELTA_LSB = (0x09), + + MPL3115A2_OUT_T_DELTA_MSB = (0x0A), + MPL3115A2_OUT_T_DELTA_LSB = (0x0B), + + MPL3115A2_WHOAMI = (0x0C), + //This is hard-coded in the device from the factory + MPL3115A2_WHOAMI_EXPECTED = (0xC4), + + MPL3115A2_BAR_IN_MSB = (0x14), + MPL3115A2_BAR_IN_LSB = (0x15), + + MPL3115A2_OFF_H = (0x2D), + }; + + /** MPL3115A2 status register BITS **/ + enum { + MPL3115A2_REGISTER_STATUS_TDR = 0x02, + MPL3115A2_REGISTER_STATUS_PDR = 0x04, + MPL3115A2_REGISTER_STATUS_PTDR = 0x08, + }; + + /** MPL3115A2 PT DATA register BITS **/ + enum { + MPL3115A2_PT_DATA_CFG = 0x13, + MPL3115A2_PT_DATA_CFG_TDEFE = 0x01, + MPL3115A2_PT_DATA_CFG_PDEFE = 0x02, + MPL3115A2_PT_DATA_CFG_DREM = 0x04, + }; + + /** MPL3115A2 control registers **/ + enum { + MPL3115A2_CTRL_REG1 = (0x26), + MPL3115A2_CTRL_REG2 = (0x27), + MPL3115A2_CTRL_REG3 = (0x28), + MPL3115A2_CTRL_REG4 = (0x29), + MPL3115A2_CTRL_REG5 = (0x2A), + }; + + /** MPL3115A2 control register BITS **/ + enum { + MPL3115A2_CTRL_REG1_SBYB = 0x01, + MPL3115A2_CTRL_REG1_OST = 0x02, + MPL3115A2_CTRL_REG1_RST = 0x04, + MPL3115A2_CTRL_REG1_RAW = 0x40, + MPL3115A2_CTRL_REG1_ALT = 0x80, + MPL3115A2_CTRL_REG1_BAR = 0x00, + }; + + /** MPL3115A2 oversample values **/ + enum { + MPL3115A2_CTRL_REG1_OS1 = 0x00, + MPL3115A2_CTRL_REG1_OS2 = 0x08, + MPL3115A2_CTRL_REG1_OS4 = 0x10, + MPL3115A2_CTRL_REG1_OS8 = 0x18, + MPL3115A2_CTRL_REG1_OS16 = 0x20, + MPL3115A2_CTRL_REG1_OS32 = 0x28, + MPL3115A2_CTRL_REG1_OS64 = 0x30, + MPL3115A2_CTRL_REG1_OS128 = 0x38, + }; + + /** MPL3115A2 measurement modes **/ + typedef enum { + MPL3115A2_BAROMETER = 0, + MPL3115A2_ALTIMETER, + } mpl3115a2_mode_t; + + /** MPL3115A2 measurement types **/ + typedef enum { + MPL3115A2_PRESSURE, + MPL3115A2_ALTITUDE, + MPL3115A2_TEMPERATURE, + } mpl3115a2_meas_t; + + //This never actually gets used, and I can't find anything in the datasheet about it?? + #define MPL3115A2_REGISTER_STARTCONVERSION (0x12) ///< start conversion + + //Store current operating mode, sent to device during startup procedure + //This is why an enum is used rather than raw #define statements + mpl3115a2_mode_t currentMode; + + //Struct for storing ctrl register contents, copied from adafruit implementation + typedef union { + struct { + uint8_t SBYB : 1; + uint8_t OST : 1; + uint8_t RST : 1; + uint8_t OS : 3; + uint8_t RAW : 1; + uint8_t ALT : 1; + } bit; + uint8_t reg; + } CTRL_REG_1_STRUCT; + //Create instance of this register config to use during device startup and operation + CTRL_REG_1_STRUCT ctrl_reg1; + + public: + + /** + * @brief Construct a new Altimeter Sensor object + * + */ + AltimeterSensor(std::string I2C_FILE); + + /** + * @brief Initialize the Altimeter + * + * @param data Data for initializing the sensor + * @return true Initialization Success + * @return false Initialization Failure + */ + bool init() override; + + //Data getters and setters + // double getPressure(); + double getAltitude(); + double getTemperature(); + double setSeaLevelPressure(double pressure); + + //Data and mode handlers + //Use altimeter mode by default as this is what rocket logger wants + void setMode(mpl3115a2_mode_t mode = MPL3115A2_ALTIMETER); + void requestOneShotReading(); + bool isNewDataAvailable(); + void updateCurrentDataBuffer(); + + +}; + + + + |
