Changed hts221 into Class.
Dependents: WeatherSensor-Joe PAG-CourseWork-NicksEdits SOFT253_Assignment SOFT253_Assignment_V2 ... more
Fork of hts221 by
hts221.h@1:da79e74eadd1, 2015-07-24 (annotated)
- Committer:
- kylerodgers
- Date:
- Fri Jul 24 15:21:28 2015 +0000
- Revision:
- 1:da79e74eadd1
- Parent:
- 0:030da9425166
- Child:
- 2:6d7166d49741
Changed into Class
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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gillwei7 | 0:030da9425166 | 1 | /* Copyright (c) 2009 Nordic Semiconductor. All Rights Reserved. |
gillwei7 | 0:030da9425166 | 2 | * |
gillwei7 | 0:030da9425166 | 3 | * The information contained herein is property of Nordic Semiconductor ASA. |
gillwei7 | 0:030da9425166 | 4 | * Terms and conditions of usage are described in detail in NORDIC |
gillwei7 | 0:030da9425166 | 5 | * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT. |
gillwei7 | 0:030da9425166 | 6 | * |
gillwei7 | 0:030da9425166 | 7 | * Licensees are granted free, non-transferable use of the information. NO |
gillwei7 | 0:030da9425166 | 8 | * WARRANTY of ANY KIND is provided. This heading must NOT be removed from |
gillwei7 | 0:030da9425166 | 9 | * the file. |
gillwei7 | 0:030da9425166 | 10 | * |
gillwei7 | 0:030da9425166 | 11 | */ |
gillwei7 | 0:030da9425166 | 12 | |
gillwei7 | 0:030da9425166 | 13 | #ifndef HTS221_H |
gillwei7 | 0:030da9425166 | 14 | #define HTS221_H |
gillwei7 | 0:030da9425166 | 15 | |
gillwei7 | 0:030da9425166 | 16 | /*lint ++flb "Enter library region" */ |
gillwei7 | 0:030da9425166 | 17 | |
gillwei7 | 0:030da9425166 | 18 | #include <stdbool.h> |
gillwei7 | 0:030da9425166 | 19 | #include <stdint.h> |
gillwei7 | 0:030da9425166 | 20 | |
gillwei7 | 0:030da9425166 | 21 | #define ADDRESS_WHO_AM_I (0x0FU) //!< WHO_AM_I register identifies the device. Expected value is 0xBC. |
gillwei7 | 0:030da9425166 | 22 | |
gillwei7 | 0:030da9425166 | 23 | #define HTS221_WriteADDE 0xBE |
gillwei7 | 0:030da9425166 | 24 | #define HTS221_ReadADDE 0xBF |
gillwei7 | 0:030da9425166 | 25 | #define HTS221_TempHumi_OUT 0x28 |
gillwei7 | 0:030da9425166 | 26 | #define HTS221_CALIB 0x30 |
gillwei7 | 0:030da9425166 | 27 | |
gillwei7 | 0:030da9425166 | 28 | #define MaxTemp 120 |
gillwei7 | 0:030da9425166 | 29 | #define MinTemp -40 |
gillwei7 | 0:030da9425166 | 30 | #define MaxHumi 100 |
gillwei7 | 0:030da9425166 | 31 | #define MinHumi 0 |
gillwei7 | 0:030da9425166 | 32 | |
gillwei7 | 0:030da9425166 | 33 | // Humidity and temperature resolution mode, to ocnfigure sample average |
gillwei7 | 0:030da9425166 | 34 | #define TRes_1 000 // Number of temperature samples take 2^1,2^2...etc. |
gillwei7 | 0:030da9425166 | 35 | #define TRes_2 001 |
gillwei7 | 0:030da9425166 | 36 | #define TRes_3 010 |
gillwei7 | 0:030da9425166 | 37 | #define TRes_4 011 |
gillwei7 | 0:030da9425166 | 38 | #define TRes_5 100 |
gillwei7 | 0:030da9425166 | 39 | #define TRes_6 101 |
gillwei7 | 0:030da9425166 | 40 | #define TRes_7 102 |
gillwei7 | 0:030da9425166 | 41 | #define TRes_8 103 |
gillwei7 | 0:030da9425166 | 42 | |
gillwei7 | 0:030da9425166 | 43 | #define HRes_2 000 // Number of humidity samples take 2^2,2^3...etc. |
gillwei7 | 0:030da9425166 | 44 | #define HRes_3 001 |
gillwei7 | 0:030da9425166 | 45 | #define HRes_4 010 |
gillwei7 | 0:030da9425166 | 46 | #define HRes_5 011 |
gillwei7 | 0:030da9425166 | 47 | #define HRes_6 100 |
gillwei7 | 0:030da9425166 | 48 | #define HRes_7 101 |
gillwei7 | 0:030da9425166 | 49 | #define HRes_8 102 |
gillwei7 | 0:030da9425166 | 50 | #define HRes_9 103 |
gillwei7 | 0:030da9425166 | 51 | |
gillwei7 | 0:030da9425166 | 52 | // Control register 1 |
gillwei7 | 0:030da9425166 | 53 | #define PD_On 0x80 // Power down mode |
gillwei7 | 0:030da9425166 | 54 | #define PD_Off 0x00 // Active mode |
gillwei7 | 0:030da9425166 | 55 | |
gillwei7 | 0:030da9425166 | 56 | #define BDU_On 0x04 // Block data update, this feature prevents the reading of LSB and MSB related to different samples. |
gillwei7 | 0:030da9425166 | 57 | #define BDU_Off 0x00 |
gillwei7 | 0:030da9425166 | 58 | // Define output data rate |
gillwei7 | 0:030da9425166 | 59 | #define ODR_OneShot 0x00 |
gillwei7 | 0:030da9425166 | 60 | #define ODR_1Hz 0x01 |
gillwei7 | 0:030da9425166 | 61 | #define ODR_7Hz 0x02 |
gillwei7 | 0:030da9425166 | 62 | #define ODR_12_5Hz 0x03 |
gillwei7 | 0:030da9425166 | 63 | // Control register 2 |
gillwei7 | 0:030da9425166 | 64 | #define Boot 0x80 |
gillwei7 | 0:030da9425166 | 65 | #define NoBoot 0x00 |
gillwei7 | 0:030da9425166 | 66 | #define HeaterOn 0x02 |
gillwei7 | 0:030da9425166 | 67 | #define HeaterOff 0x00 |
gillwei7 | 0:030da9425166 | 68 | #define New_OS 0x01 // One shot, a single acquisition of temperature and humidity is started |
gillwei7 | 0:030da9425166 | 69 | #define No_OS 0x00 |
gillwei7 | 0:030da9425166 | 70 | // Control register 3 |
gillwei7 | 0:030da9425166 | 71 | #define DRDY_H 0x00 // Data Ready output signal active high(default) |
gillwei7 | 0:030da9425166 | 72 | #define DRDY_L 0x80 // Data Ready output signal active low |
gillwei7 | 0:030da9425166 | 73 | #define PP_OD_PP 0x00 // Push-pull on PIN3(DRDY)(default) |
gillwei7 | 0:030da9425166 | 74 | #define PP_OD_OD 0x40 // Open Drain on PIN3(DRDY) |
gillwei7 | 0:030da9425166 | 75 | #define DRDY_EN 0x04 // Data Ready enable |
gillwei7 | 0:030da9425166 | 76 | #define DRDY_NON 0x00 // Data Ready disable(default) |
gillwei7 | 0:030da9425166 | 77 | |
gillwei7 | 0:030da9425166 | 78 | // Status register |
gillwei7 | 0:030da9425166 | 79 | #define H_DA_On 0x02 // Humidity data avialable, set to 1 whenever a new humidity sample is available. |
gillwei7 | 0:030da9425166 | 80 | #define H_DA_Off 0x00 |
gillwei7 | 0:030da9425166 | 81 | #define T_DA_On 0x01 // Temperature data avialable, set to 1 whenever a new humidity sample is available. |
gillwei7 | 0:030da9425166 | 82 | #define T_DA_Off 0x00 |
gillwei7 | 0:030da9425166 | 83 | |
kylerodgers | 1:da79e74eadd1 | 84 | class HTS221{ |
kylerodgers | 1:da79e74eadd1 | 85 | public: |
kylerodgers | 1:da79e74eadd1 | 86 | HTS221 (PinName sda, PinName scl); |
kylerodgers | 1:da79e74eadd1 | 87 | void calib(void); |
kylerodgers | 1:da79e74eadd1 | 88 | bool init(void); |
kylerodgers | 1:da79e74eadd1 | 89 | void ReadTempHumi( float *pTemp , float *pHumi); |
kylerodgers | 1:da79e74eadd1 | 90 | |
kylerodgers | 1:da79e74eadd1 | 91 | private: |
kylerodgers | 1:da79e74eadd1 | 92 | void register_write(uint8_t register_address, const uint8_t value); |
kylerodgers | 1:da79e74eadd1 | 93 | void register_read(char register_address, char *destination, uint8_t number_of_bytes); |
kylerodgers | 1:da79e74eadd1 | 94 | bool verify_product_id(void); |
kylerodgers | 1:da79e74eadd1 | 95 | float linear_interpolation(int16_t x0, float y0, int16_t x1, float y1, float mes); |
kylerodgers | 1:da79e74eadd1 | 96 | |
kylerodgers | 1:da79e74eadd1 | 97 | I2C _i2c; |
kylerodgers | 1:da79e74eadd1 | 98 | |
kylerodgers | 1:da79e74eadd1 | 99 | static const char expected_who_am_i = 0xBCU; //!< Expected value to get from WHO_AM_I register. |
gillwei7 | 0:030da9425166 | 100 | |
kylerodgers | 1:da79e74eadd1 | 101 | uint8_t H0_rH_x2; |
kylerodgers | 1:da79e74eadd1 | 102 | uint8_t H1_rH_x2; |
kylerodgers | 1:da79e74eadd1 | 103 | uint16_t T0_degC_x8; |
kylerodgers | 1:da79e74eadd1 | 104 | uint16_t T1_degC_x8; |
gillwei7 | 0:030da9425166 | 105 | |
kylerodgers | 1:da79e74eadd1 | 106 | int16_t H0_T0_OUT; |
kylerodgers | 1:da79e74eadd1 | 107 | int16_t H1_T0_OUT; |
kylerodgers | 1:da79e74eadd1 | 108 | int16_t T0_OUT; |
kylerodgers | 1:da79e74eadd1 | 109 | int16_t T1_OUT; |
gillwei7 | 0:030da9425166 | 110 | |
kylerodgers | 1:da79e74eadd1 | 111 | float T0_DegC_cal; |
kylerodgers | 1:da79e74eadd1 | 112 | float T1_DegC_cal; |
kylerodgers | 1:da79e74eadd1 | 113 | float H0_RH_cal; |
kylerodgers | 1:da79e74eadd1 | 114 | float H1_RH_cal; |
kylerodgers | 1:da79e74eadd1 | 115 | |
kylerodgers | 1:da79e74eadd1 | 116 | }; |
gillwei7 | 0:030da9425166 | 117 | |
gillwei7 | 0:030da9425166 | 118 | #endif /* HTS221_H */ |
gillwei7 | 0:030da9425166 | 119 |