Framework of classes and program to measure tilt angles using accelerometers
Fork of tilt_angles by
ENGO333_I2C.h@0:3bffc1862262, 2016-11-24 (annotated)
- Committer:
- mpetovello
- Date:
- Thu Nov 24 23:02:42 2016 +0000
- Revision:
- 0:3bffc1862262
Lab 10 draft, 2016
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mpetovello | 0:3bffc1862262 | 1 | /** |
mpetovello | 0:3bffc1862262 | 2 | * File : ENGO333_I2C.h |
mpetovello | 0:3bffc1862262 | 3 | * Created by : Chandra Tjhai |
mpetovello | 0:3bffc1862262 | 4 | * Created on : September 10, 2016 |
mpetovello | 0:3bffc1862262 | 5 | * |
mpetovello | 0:3bffc1862262 | 6 | * Description : |
mpetovello | 0:3bffc1862262 | 7 | * This file contains a class to handle I2C bus operation for ENGO 333. |
mpetovello | 0:3bffc1862262 | 8 | */ |
mpetovello | 0:3bffc1862262 | 9 | |
mpetovello | 0:3bffc1862262 | 10 | #ifndef ENGO333_I2C_H |
mpetovello | 0:3bffc1862262 | 11 | #define ENGO333_I2C_H |
mpetovello | 0:3bffc1862262 | 12 | |
mpetovello | 0:3bffc1862262 | 13 | #include "mbed.h" |
mpetovello | 0:3bffc1862262 | 14 | |
mpetovello | 0:3bffc1862262 | 15 | /** |
mpetovello | 0:3bffc1862262 | 16 | * Class |
mpetovello | 0:3bffc1862262 | 17 | * A class to handle I2C read/write operation |
mpetovello | 0:3bffc1862262 | 18 | */ |
mpetovello | 0:3bffc1862262 | 19 | class ENGO333_I2C |
mpetovello | 0:3bffc1862262 | 20 | { |
mpetovello | 0:3bffc1862262 | 21 | private: |
mpetovello | 0:3bffc1862262 | 22 | I2C i2c; // Object for handling I2C bus operations |
mpetovello | 0:3bffc1862262 | 23 | |
mpetovello | 0:3bffc1862262 | 24 | public: |
mpetovello | 0:3bffc1862262 | 25 | /** |
mpetovello | 0:3bffc1862262 | 26 | * Constructor |
mpetovello | 0:3bffc1862262 | 27 | * |
mpetovello | 0:3bffc1862262 | 28 | * Input |
mpetovello | 0:3bffc1862262 | 29 | * sda = SDA or I2C serial data pin |
mpetovello | 0:3bffc1862262 | 30 | * scl = SCL or I2C serial clock pin |
mpetovello | 0:3bffc1862262 | 31 | */ |
mpetovello | 0:3bffc1862262 | 32 | ENGO333_I2C(PinName sda, PinName scl); |
mpetovello | 0:3bffc1862262 | 33 | |
mpetovello | 0:3bffc1862262 | 34 | /** |
mpetovello | 0:3bffc1862262 | 35 | * Destructor |
mpetovello | 0:3bffc1862262 | 36 | */ |
mpetovello | 0:3bffc1862262 | 37 | ~ENGO333_I2C(); |
mpetovello | 0:3bffc1862262 | 38 | |
mpetovello | 0:3bffc1862262 | 39 | /** |
mpetovello | 0:3bffc1862262 | 40 | * Function : |
mpetovello | 0:3bffc1862262 | 41 | * Set I2C bus frequency |
mpetovello | 0:3bffc1862262 | 42 | * |
mpetovello | 0:3bffc1862262 | 43 | * Input : |
mpetovello | 0:3bffc1862262 | 44 | * freq = desired frequency in Hz |
mpetovello | 0:3bffc1862262 | 45 | */ |
mpetovello | 0:3bffc1862262 | 46 | void setSpeed(int freq); |
mpetovello | 0:3bffc1862262 | 47 | |
mpetovello | 0:3bffc1862262 | 48 | /** |
mpetovello | 0:3bffc1862262 | 49 | * Function : |
mpetovello | 0:3bffc1862262 | 50 | * Write one byte data into device's register |
mpetovello | 0:3bffc1862262 | 51 | * |
mpetovello | 0:3bffc1862262 | 52 | * Input : |
mpetovello | 0:3bffc1862262 | 53 | * deviceAddress = Device's I2C address |
mpetovello | 0:3bffc1862262 | 54 | * registerAddress = Device's register address to be written on |
mpetovello | 0:3bffc1862262 | 55 | * value = Value to be written on device's register address |
mpetovello | 0:3bffc1862262 | 56 | */ |
mpetovello | 0:3bffc1862262 | 57 | void writeOneByte(char deviceAddress, char registerAddress, char value); |
mpetovello | 0:3bffc1862262 | 58 | |
mpetovello | 0:3bffc1862262 | 59 | /** |
mpetovello | 0:3bffc1862262 | 60 | * Function : |
mpetovello | 0:3bffc1862262 | 61 | * Read one byte from device's register address |
mpetovello | 0:3bffc1862262 | 62 | * |
mpetovello | 0:3bffc1862262 | 63 | * Input : |
mpetovello | 0:3bffc1862262 | 64 | * deviceAddress = Device's I2C address |
mpetovello | 0:3bffc1862262 | 65 | * registerAddress = Device's register address to be read |
mpetovello | 0:3bffc1862262 | 66 | * |
mpetovello | 0:3bffc1862262 | 67 | * Return : |
mpetovello | 0:3bffc1862262 | 68 | * One byte data read from device's register |
mpetovello | 0:3bffc1862262 | 69 | */ |
mpetovello | 0:3bffc1862262 | 70 | char readOneByte(char deviceAddress, char registerAddress); |
mpetovello | 0:3bffc1862262 | 71 | |
mpetovello | 0:3bffc1862262 | 72 | /** |
mpetovello | 0:3bffc1862262 | 73 | * Function : |
mpetovello | 0:3bffc1862262 | 74 | * Read multiple bytes from device's register address |
mpetovello | 0:3bffc1862262 | 75 | * |
mpetovello | 0:3bffc1862262 | 76 | * Input : |
mpetovello | 0:3bffc1862262 | 77 | * deviceAddress = Device's I2C address |
mpetovello | 0:3bffc1862262 | 78 | * registerAddress = Device's register address to be read |
mpetovello | 0:3bffc1862262 | 79 | * value = Array of data to store values read from device's register |
mpetovello | 0:3bffc1862262 | 80 | */ |
mpetovello | 0:3bffc1862262 | 81 | void readBytes(char deviceAddress, char registerAddress, char* value, int length); |
mpetovello | 0:3bffc1862262 | 82 | }; |
mpetovello | 0:3bffc1862262 | 83 | |
mpetovello | 0:3bffc1862262 | 84 | #endif |