Chandra Tjhai
/
ENGO333_Lab_tiltmeter
Simple tiltmeter using accelerometer
ENGO333_I2C.h@0:7d6134e052e0, 2019-11-23 (annotated)
- Committer:
- chtjhai
- Date:
- Sat Nov 23 04:58:09 2019 +0000
- Revision:
- 0:7d6134e052e0
Simple tiltmeter using accelerometer
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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chtjhai | 0:7d6134e052e0 | 1 | /** |
chtjhai | 0:7d6134e052e0 | 2 | * File : ENGO333_I2C.h |
chtjhai | 0:7d6134e052e0 | 3 | * Created by : Chandra Tjhai |
chtjhai | 0:7d6134e052e0 | 4 | * Created on : September 10, 2016 |
chtjhai | 0:7d6134e052e0 | 5 | * |
chtjhai | 0:7d6134e052e0 | 6 | * Description : |
chtjhai | 0:7d6134e052e0 | 7 | * This file contains a class to handle I2C bus operation for ENGO 333. |
chtjhai | 0:7d6134e052e0 | 8 | */ |
chtjhai | 0:7d6134e052e0 | 9 | |
chtjhai | 0:7d6134e052e0 | 10 | #ifndef ENGO333_I2C_H |
chtjhai | 0:7d6134e052e0 | 11 | #define ENGO333_I2C_H |
chtjhai | 0:7d6134e052e0 | 12 | |
chtjhai | 0:7d6134e052e0 | 13 | #include "mbed.h" |
chtjhai | 0:7d6134e052e0 | 14 | |
chtjhai | 0:7d6134e052e0 | 15 | /** |
chtjhai | 0:7d6134e052e0 | 16 | * Class |
chtjhai | 0:7d6134e052e0 | 17 | * A class to handle I2C read/write operation |
chtjhai | 0:7d6134e052e0 | 18 | */ |
chtjhai | 0:7d6134e052e0 | 19 | class ENGO333_I2C |
chtjhai | 0:7d6134e052e0 | 20 | { |
chtjhai | 0:7d6134e052e0 | 21 | private: |
chtjhai | 0:7d6134e052e0 | 22 | I2C i2c; // Object for handling I2C bus operations |
chtjhai | 0:7d6134e052e0 | 23 | |
chtjhai | 0:7d6134e052e0 | 24 | public: |
chtjhai | 0:7d6134e052e0 | 25 | /** |
chtjhai | 0:7d6134e052e0 | 26 | * Constructor |
chtjhai | 0:7d6134e052e0 | 27 | * |
chtjhai | 0:7d6134e052e0 | 28 | * Input |
chtjhai | 0:7d6134e052e0 | 29 | * sda = SDA or I2C serial data pin |
chtjhai | 0:7d6134e052e0 | 30 | * scl = SCL or I2C serial clock pin |
chtjhai | 0:7d6134e052e0 | 31 | */ |
chtjhai | 0:7d6134e052e0 | 32 | ENGO333_I2C(PinName sda, PinName scl); |
chtjhai | 0:7d6134e052e0 | 33 | |
chtjhai | 0:7d6134e052e0 | 34 | /** |
chtjhai | 0:7d6134e052e0 | 35 | * Destructor |
chtjhai | 0:7d6134e052e0 | 36 | */ |
chtjhai | 0:7d6134e052e0 | 37 | ~ENGO333_I2C(); |
chtjhai | 0:7d6134e052e0 | 38 | |
chtjhai | 0:7d6134e052e0 | 39 | /** |
chtjhai | 0:7d6134e052e0 | 40 | * Function : |
chtjhai | 0:7d6134e052e0 | 41 | * Set I2C bus frequency |
chtjhai | 0:7d6134e052e0 | 42 | * |
chtjhai | 0:7d6134e052e0 | 43 | * Input : |
chtjhai | 0:7d6134e052e0 | 44 | * freq = desired frequency in Hz |
chtjhai | 0:7d6134e052e0 | 45 | */ |
chtjhai | 0:7d6134e052e0 | 46 | void setSpeed(int freq); |
chtjhai | 0:7d6134e052e0 | 47 | |
chtjhai | 0:7d6134e052e0 | 48 | /** |
chtjhai | 0:7d6134e052e0 | 49 | * Function : |
chtjhai | 0:7d6134e052e0 | 50 | * Write one byte data into device's register |
chtjhai | 0:7d6134e052e0 | 51 | * |
chtjhai | 0:7d6134e052e0 | 52 | * Input : |
chtjhai | 0:7d6134e052e0 | 53 | * deviceAddress = Device's I2C address |
chtjhai | 0:7d6134e052e0 | 54 | * registerAddress = Device's register address to be written on |
chtjhai | 0:7d6134e052e0 | 55 | * value = Value to be written on device's register address |
chtjhai | 0:7d6134e052e0 | 56 | */ |
chtjhai | 0:7d6134e052e0 | 57 | void writeOneByte(char deviceAddress, char registerAddress, char value); |
chtjhai | 0:7d6134e052e0 | 58 | |
chtjhai | 0:7d6134e052e0 | 59 | /** |
chtjhai | 0:7d6134e052e0 | 60 | * Function : |
chtjhai | 0:7d6134e052e0 | 61 | * Read one byte from device's register address |
chtjhai | 0:7d6134e052e0 | 62 | * |
chtjhai | 0:7d6134e052e0 | 63 | * Input : |
chtjhai | 0:7d6134e052e0 | 64 | * deviceAddress = Device's I2C address |
chtjhai | 0:7d6134e052e0 | 65 | * registerAddress = Device's register address to be read |
chtjhai | 0:7d6134e052e0 | 66 | * |
chtjhai | 0:7d6134e052e0 | 67 | * Return : |
chtjhai | 0:7d6134e052e0 | 68 | * One byte data read from device's register |
chtjhai | 0:7d6134e052e0 | 69 | */ |
chtjhai | 0:7d6134e052e0 | 70 | char readOneByte(char deviceAddress, char registerAddress); |
chtjhai | 0:7d6134e052e0 | 71 | |
chtjhai | 0:7d6134e052e0 | 72 | /** |
chtjhai | 0:7d6134e052e0 | 73 | * Function : |
chtjhai | 0:7d6134e052e0 | 74 | * Read multiple bytes from device's register address |
chtjhai | 0:7d6134e052e0 | 75 | * |
chtjhai | 0:7d6134e052e0 | 76 | * Input : |
chtjhai | 0:7d6134e052e0 | 77 | * deviceAddress = Device's I2C address |
chtjhai | 0:7d6134e052e0 | 78 | * registerAddress = Device's register address to be read |
chtjhai | 0:7d6134e052e0 | 79 | * value = Array of data to store values read from device's register |
chtjhai | 0:7d6134e052e0 | 80 | */ |
chtjhai | 0:7d6134e052e0 | 81 | void readBytes(char deviceAddress, char registerAddress, char* value, int length); |
chtjhai | 0:7d6134e052e0 | 82 | }; |
chtjhai | 0:7d6134e052e0 | 83 | |
chtjhai | 0:7d6134e052e0 | 84 | #endif |
chtjhai | 0:7d6134e052e0 | 85 |