altb_pmic / HP206C

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Dependents:   Grove-Barometric_Pressure_Sensor_Example

HP206C.h@1:c5247b2ef5af, 2019-06-25 (annotated)

Committer:
pmic
Date:
Tue Jun 25 13:20:39 2019 +0000
Revision:
1:c5247b2ef5af
Parent:
0:817bdb1032c5
Child:
2:8f5aa7475f97
first attempt, not working

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pmic 1:c5247b2ef5af 1 #ifndef _HP206C
pmic 1:c5247b2ef5af 2 #define _HP206C
pmic 1:c5247b2ef5af 3
pmic 1:c5247b2ef5af 4 #include "mbed.h"
pmic 1:c5247b2ef5af 5
pmic 1:c5247b2ef5af 6 #define I2C_BAROMETER_ADDRESS 0x76 << 1 // 0xEC, device adress
pmic 1:c5247b2ef5af 7
pmic 1:c5247b2ef5af 8 #define HP20X_SOFT_RST 0x06 // for initializing, takes longer than next
pmic 1:c5247b2ef5af 9 #define HP20X_ANA_CAL 0x28 // recalibrate analog internal circuitries, for unstable environment
pmic 1:c5247b2ef5af 10
pmic 1:c5247b2ef5af 11 #define HP20X_WR_CONVERT_CMD 0x40
pmic 1:c5247b2ef5af 12
pmic 1:c5247b2ef5af 13 #define HP20X_READ_PT 0x10 // read pressure and altitude command
pmic 1:c5247b2ef5af 14 #define HP20X_READ_A 0x31 // read altitude command
pmic 1:c5247b2ef5af 15
pmic 1:c5247b2ef5af 16 #define HP20X_WR_REG_MODE 0xC0
pmic 1:c5247b2ef5af 17 #define HP20X_RD_REG_MODE 0x80
pmic 1:c5247b2ef5af 18
pmic 1:c5247b2ef5af 19 #define HP20X_OK_DEV 0X80 // successfully initialized
pmic 1:c5247b2ef5af 20 #define HP20X_REG_PARA 0X0F // status register
pmic 1:c5247b2ef5af 21
pmic 1:c5247b2ef5af 22 #define HP20X_CONVERT_OSR4096 0 << 2
pmic 1:c5247b2ef5af 23 #define HP20X_CONVERT_OSR2048 1 << 2
pmic 1:c5247b2ef5af 24 #define HP20X_CONVERT_OSR1024 2 << 2
pmic 1:c5247b2ef5af 25 #define HP20X_CONVERT_OSR512 3 << 2
pmic 1:c5247b2ef5af 26 #define HP20X_CONVERT_OSR256 4 << 2
pmic 1:c5247b2ef5af 27 #define HP20X_CONVERT_OSR128 5 << 2
pmic 1:c5247b2ef5af 28
pmic 1:c5247b2ef5af 29 #define OSR_CFG HP20X_CONVERT_OSR1024
pmic 1:c5247b2ef5af 30
pmic 1:c5247b2ef5af 31 class HP206C
pmic 1:c5247b2ef5af 32 {
pmic 1:c5247b2ef5af 33 public:
pmic 1:c5247b2ef5af 34
pmic 1:c5247b2ef5af 35 HP206C(PinName p_sda, PinName p_scl);
pmic 1:c5247b2ef5af 36 /*
pmic 1:c5247b2ef5af 37 float operator()()
pmic 1:c5247b2ef5af 38 {
pmic 1:c5247b2ef5af 39 return performMeasAndgetAltitude();
pmic 1:c5247b2ef5af 40 }
pmic 1:c5247b2ef5af 41 */
pmic 1:c5247b2ef5af 42 virtual ~HP206C();
pmic 1:c5247b2ef5af 43
pmic 1:c5247b2ef5af 44 void reset();
pmic 1:c5247b2ef5af 45
pmic 1:c5247b2ef5af 46 float performMeasAndreadAltitude();
pmic 1:c5247b2ef5af 47 float readTemperature();
pmic 1:c5247b2ef5af 48 float readPressure();
pmic 1:c5247b2ef5af 49
pmic 1:c5247b2ef5af 50 private:
pmic 1:c5247b2ef5af 51
pmic 1:c5247b2ef5af 52 I2C i2c;
pmic 1:c5247b2ef5af 53
pmic 1:c5247b2ef5af 54 float temperature;
pmic 1:c5247b2ef5af 55 float pressure;
pmic 1:c5247b2ef5af 56 float altitude;
pmic 1:c5247b2ef5af 57 bool baro_found;
pmic 1:c5247b2ef5af 58
pmic 1:c5247b2ef5af 59 unsigned char readRegister(unsigned char reg);
pmic 1:c5247b2ef5af 60 void writeRegister(unsigned char reg, unsigned char data);
pmic 1:c5247b2ef5af 61 void enableCompensation();
pmic 1:c5247b2ef5af 62 void disableCompensation();
pmic 1:c5247b2ef5af 63 void softReset();
pmic 1:c5247b2ef5af 64 void recalibrate();
pmic 1:c5247b2ef5af 65 uint32_t readData3Bytes();
pmic 1:c5247b2ef5af 66 uint32_t *readData6Bytes();
pmic 1:c5247b2ef5af 67 void readTemperatureAndPressureStep1();
pmic 1:c5247b2ef5af 68 void readTemperatureAndPressureStep2();
pmic 1:c5247b2ef5af 69 void readAltitude();
pmic 1:c5247b2ef5af 70 uint8_t getConversionTime();
pmic 1:c5247b2ef5af 71
pmic 1:c5247b2ef5af 72 };
pmic 1:c5247b2ef5af 73
pmic 1:c5247b2ef5af 74 #endif