Driver for HP20X sensor
Dependents: 8-0_OneNet_IoT_demo
driver_mbed_HP20x.h@0:2ee0bc82e7b8, 2017-03-29 (annotated)
- Committer:
- TaylorGy
- Date:
- Wed Mar 29 03:09:38 2017 +0000
- Revision:
- 0:2ee0bc82e7b8
driver for HP20x sensor
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
TaylorGy | 0:2ee0bc82e7b8 | 1 | /* |
TaylorGy | 0:2ee0bc82e7b8 | 2 | * File name : HP20x_dev.h |
TaylorGy | 0:2ee0bc82e7b8 | 3 | * Description: Driver for I2C PRECISION BAROMETER AND ALTIMETER [HP206C] |
TaylorGy | 0:2ee0bc82e7b8 | 4 | * Author : Oliver Wang from Seeed studio |
TaylorGy | 0:2ee0bc82e7b8 | 5 | * Version : V0.1 |
TaylorGy | 0:2ee0bc82e7b8 | 6 | * Create Time: 2014/04 |
TaylorGy | 0:2ee0bc82e7b8 | 7 | * Change Log : |
TaylorGy | 0:2ee0bc82e7b8 | 8 | */ |
TaylorGy | 0:2ee0bc82e7b8 | 9 | #ifndef _HP20X_DEV_H |
TaylorGy | 0:2ee0bc82e7b8 | 10 | #define _HP20X_DEV_H |
TaylorGy | 0:2ee0bc82e7b8 | 11 | /****************************************************************************/ |
TaylorGy | 0:2ee0bc82e7b8 | 12 | /*** Including Files ***/ |
TaylorGy | 0:2ee0bc82e7b8 | 13 | /****************************************************************************/ |
TaylorGy | 0:2ee0bc82e7b8 | 14 | // #include <Wire.h> |
TaylorGy | 0:2ee0bc82e7b8 | 15 | // #include <Arduino.h> |
TaylorGy | 0:2ee0bc82e7b8 | 16 | #include "mbed.h" |
TaylorGy | 0:2ee0bc82e7b8 | 17 | /****************************************************************************/ |
TaylorGy | 0:2ee0bc82e7b8 | 18 | /*** Macro Definitions ***/ |
TaylorGy | 0:2ee0bc82e7b8 | 19 | /****************************************************************************/ |
TaylorGy | 0:2ee0bc82e7b8 | 20 | typedef unsigned int uint; |
TaylorGy | 0:2ee0bc82e7b8 | 21 | typedef unsigned char uchar; |
TaylorGy | 0:2ee0bc82e7b8 | 22 | typedef unsigned long ulong; |
TaylorGy | 0:2ee0bc82e7b8 | 23 | |
TaylorGy | 0:2ee0bc82e7b8 | 24 | // #define HP20X_I2C_DEV_ID (0xEC)>>1 //CSB PIN is VDD level(address is 0x76) |
TaylorGy | 0:2ee0bc82e7b8 | 25 | // #define HP20X_I2C_DEV_ID2 (0XEE)>>1 //CSB PIN is GND level(address is 0x77) |
TaylorGy | 0:2ee0bc82e7b8 | 26 | |
TaylorGy | 0:2ee0bc82e7b8 | 27 | const int HP20X_I2C_DEV_ID = 0xEC; |
TaylorGy | 0:2ee0bc82e7b8 | 28 | const int HP20X_I2C_DEV_ID2 = 0xEE; |
TaylorGy | 0:2ee0bc82e7b8 | 29 | |
TaylorGy | 0:2ee0bc82e7b8 | 30 | #define HP20X_SOFT_RST 0x06 |
TaylorGy | 0:2ee0bc82e7b8 | 31 | #define HP20X_WR_CONVERT_CMD 0x40 |
TaylorGy | 0:2ee0bc82e7b8 | 32 | #define HP20X_CONVERT_OSR4096 0<<2 |
TaylorGy | 0:2ee0bc82e7b8 | 33 | #define HP20X_CONVERT_OSR2048 1<<2 |
TaylorGy | 0:2ee0bc82e7b8 | 34 | #define HP20X_CONVERT_OSR1024 2<<2 |
TaylorGy | 0:2ee0bc82e7b8 | 35 | #define HP20X_CONVERT_OSR512 3<<2 |
TaylorGy | 0:2ee0bc82e7b8 | 36 | #define HP20X_CONVERT_OSR256 4<<2 |
TaylorGy | 0:2ee0bc82e7b8 | 37 | #define HP20X_CONVERT_OSR128 5<<2 |
TaylorGy | 0:2ee0bc82e7b8 | 38 | |
TaylorGy | 0:2ee0bc82e7b8 | 39 | #define HP20X_READ_P 0x30 //read_p command |
TaylorGy | 0:2ee0bc82e7b8 | 40 | #define HP20X_READ_A 0x31 //read_a command |
TaylorGy | 0:2ee0bc82e7b8 | 41 | #define HP20X_READ_T 0x32 //read_t command |
TaylorGy | 0:2ee0bc82e7b8 | 42 | #define HP20X_READ_PT 0x10 //read_pt command |
TaylorGy | 0:2ee0bc82e7b8 | 43 | #define HP20X_READ_AT 0x11 //read_at command |
TaylorGy | 0:2ee0bc82e7b8 | 44 | #define HP20X_READ_CAL 0X28 //RE-CAL ANALOG |
TaylorGy | 0:2ee0bc82e7b8 | 45 | |
TaylorGy | 0:2ee0bc82e7b8 | 46 | #define HP20X_WR_REG_MODE 0xC0 |
TaylorGy | 0:2ee0bc82e7b8 | 47 | #define HP20X_RD_REG_MODE 0x80 |
TaylorGy | 0:2ee0bc82e7b8 | 48 | |
TaylorGy | 0:2ee0bc82e7b8 | 49 | #define ERR_WR_DEVID_NACK 0x01 |
TaylorGy | 0:2ee0bc82e7b8 | 50 | #define ERR_RD_DEVID_NACK 0x02 |
TaylorGy | 0:2ee0bc82e7b8 | 51 | #define ERR_WR_REGADD_NACK 0x04 |
TaylorGy | 0:2ee0bc82e7b8 | 52 | #define ERR_WR_REGCMD_NACK 0x08 |
TaylorGy | 0:2ee0bc82e7b8 | 53 | #define ERR_WR_DATA_NACK 0x10 |
TaylorGy | 0:2ee0bc82e7b8 | 54 | #define ERR_RD_DATA_MISMATCH 0x20 |
TaylorGy | 0:2ee0bc82e7b8 | 55 | |
TaylorGy | 0:2ee0bc82e7b8 | 56 | #define I2C_DID_WR_MASK 0xFE |
TaylorGy | 0:2ee0bc82e7b8 | 57 | #define I2C_DID_RD_MASK 0x01 |
TaylorGy | 0:2ee0bc82e7b8 | 58 | |
TaylorGy | 0:2ee0bc82e7b8 | 59 | #define T_WIN_EN 0X01 |
TaylorGy | 0:2ee0bc82e7b8 | 60 | #define PA_WIN_EN 0X02 |
TaylorGy | 0:2ee0bc82e7b8 | 61 | #define T_TRAV_EN 0X04 |
TaylorGy | 0:2ee0bc82e7b8 | 62 | #define PA_TRAV_EN 0X08 |
TaylorGy | 0:2ee0bc82e7b8 | 63 | #define PA_RDY_EN 0X20 |
TaylorGy | 0:2ee0bc82e7b8 | 64 | #define T_RDY_EN 0X10 |
TaylorGy | 0:2ee0bc82e7b8 | 65 | |
TaylorGy | 0:2ee0bc82e7b8 | 66 | #define T_WIN_CFG 0X01 |
TaylorGy | 0:2ee0bc82e7b8 | 67 | #define PA_WIN_CFG 0X02 |
TaylorGy | 0:2ee0bc82e7b8 | 68 | #define PA_MODE_P 0X00 |
TaylorGy | 0:2ee0bc82e7b8 | 69 | #define PA_MODE_A 0X40 |
TaylorGy | 0:2ee0bc82e7b8 | 70 | |
TaylorGy | 0:2ee0bc82e7b8 | 71 | #define T_TRAV_CFG 0X04 |
TaylorGy | 0:2ee0bc82e7b8 | 72 | |
TaylorGy | 0:2ee0bc82e7b8 | 73 | #define OK_HP20X_DEV 0X80 //HP20x_dev successfully initialized |
TaylorGy | 0:2ee0bc82e7b8 | 74 | #define REG_PARA 0X0F //Status register |
TaylorGy | 0:2ee0bc82e7b8 | 75 | |
TaylorGy | 0:2ee0bc82e7b8 | 76 | /****************************************************************************/ |
TaylorGy | 0:2ee0bc82e7b8 | 77 | /*** Class Definitions ***/ |
TaylorGy | 0:2ee0bc82e7b8 | 78 | /****************************************************************************/ |
TaylorGy | 0:2ee0bc82e7b8 | 79 | class HP20x_dev |
TaylorGy | 0:2ee0bc82e7b8 | 80 | { |
TaylorGy | 0:2ee0bc82e7b8 | 81 | /* Public variables and functions */ |
TaylorGy | 0:2ee0bc82e7b8 | 82 | public: |
TaylorGy | 0:2ee0bc82e7b8 | 83 | uchar OSR_CFG; |
TaylorGy | 0:2ee0bc82e7b8 | 84 | uint OSR_ConvertTime; |
TaylorGy | 0:2ee0bc82e7b8 | 85 | /* Constructor */ |
TaylorGy | 0:2ee0bc82e7b8 | 86 | HP20x_dev(); |
TaylorGy | 0:2ee0bc82e7b8 | 87 | void begin(); |
TaylorGy | 0:2ee0bc82e7b8 | 88 | uchar isAvailable(); |
TaylorGy | 0:2ee0bc82e7b8 | 89 | |
TaylorGy | 0:2ee0bc82e7b8 | 90 | /* Read sensor data */ |
TaylorGy | 0:2ee0bc82e7b8 | 91 | ulong ReadTemperature(void); |
TaylorGy | 0:2ee0bc82e7b8 | 92 | ulong ReadPressure(void); |
TaylorGy | 0:2ee0bc82e7b8 | 93 | ulong ReadAltitude(void); |
TaylorGy | 0:2ee0bc82e7b8 | 94 | |
TaylorGy | 0:2ee0bc82e7b8 | 95 | /* Private variables and functions */ |
TaylorGy | 0:2ee0bc82e7b8 | 96 | private: |
TaylorGy | 0:2ee0bc82e7b8 | 97 | /* Write a command to HP20x */ |
TaylorGy | 0:2ee0bc82e7b8 | 98 | void HP20X_IIC_WriteCmd(uchar uCmd); |
TaylorGy | 0:2ee0bc82e7b8 | 99 | /* Read register value */ |
TaylorGy | 0:2ee0bc82e7b8 | 100 | uchar HP20X_IIC_ReadReg(uchar bReg); |
TaylorGy | 0:2ee0bc82e7b8 | 101 | void HP20X_IIC_WriteReg(uchar bReg,uchar bData); |
TaylorGy | 0:2ee0bc82e7b8 | 102 | ulong HP20X_IIC_ReadData(void); |
TaylorGy | 0:2ee0bc82e7b8 | 103 | ulong HP20X_IIC_ReadData3byte(void); |
TaylorGy | 0:2ee0bc82e7b8 | 104 | }; |
TaylorGy | 0:2ee0bc82e7b8 | 105 | extern HP20x_dev HP20x; |
TaylorGy | 0:2ee0bc82e7b8 | 106 | #endif |