Jatin Sharma / Mbed 2 deprecated RaheeNew

RaheeNew

Dependencies:   mbed

Dependents:   RaheeNew

Fork of Adafruit9-DOf by Bruno Manganelli

Header/I2C_base.h@1:c3381056a1c6, 2015-11-28 (annotated)

Committer:
jatinsha
Date:
Sat Nov 28 10:06:40 2015 +0000
Revision:
1:c3381056a1c6
Parent:
0:772bf4786416 
js

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bmanga95 0:772bf4786416 1 #ifndef I2C_BASE_H
bmanga95 0:772bf4786416 2 #define I2C_BASE_H
bmanga95 0:772bf4786416 3
bmanga95 0:772bf4786416 4 #define _MBED_
bmanga95 0:772bf4786416 5
bmanga95 0:772bf4786416 6 //Base class to extend I2C support to multiple platforms
bmanga95 0:772bf4786416 7 typedef char byte;
bmanga95 0:772bf4786416 8
bmanga95 0:772bf4786416 9
bmanga95 0:772bf4786416 10 class I2C_base
bmanga95 0:772bf4786416 11 {
bmanga95 0:772bf4786416 12 public:
bmanga95 0:772bf4786416 13 virtual void frequency (int frequency) = 0; //set the communication frequency
bmanga95 0:772bf4786416 14 virtual bool read (int address, byte* data, int length) = 0; //read data from the bus
bmanga95 0:772bf4786416 15 virtual bool write (int address, const byte* data, int length) = 0; //write data to the bus
bmanga95 0:772bf4786416 16 virtual bool writeByte (int address, byte data) = 0; //write byte to the bus
bmanga95 0:772bf4786416 17
bmanga95 0:772bf4786416 18 private:
bmanga95 0:772bf4786416 19 int _frequency;
bmanga95 0:772bf4786416 20 };
bmanga95 0:772bf4786416 21
bmanga95 0:772bf4786416 22 extern I2C_base* i2c;
bmanga95 0:772bf4786416 23
bmanga95 0:772bf4786416 24
bmanga95 0:772bf4786416 25 //MBED programming environmnet
bmanga95 0:772bf4786416 26 #ifdef _MBED_
bmanga95 0:772bf4786416 27 #include "mbed.h"
bmanga95 0:772bf4786416 28 //define SDA and SCL if not already defined
bmanga95 0:772bf4786416 29 #ifndef SDA
bmanga95 0:772bf4786416 30 #define SDA p28
bmanga95 0:772bf4786416 31 #endif
bmanga95 0:772bf4786416 32
bmanga95 0:772bf4786416 33 #ifndef SCL
bmanga95 0:772bf4786416 34 #define SCL p27
bmanga95 0:772bf4786416 35 #endif
bmanga95 0:772bf4786416 36 //*******************************************
bmanga95 0:772bf4786416 37
bmanga95 0:772bf4786416 38
bmanga95 0:772bf4786416 39 /* should be placed somewhere else, just debug code*/
bmanga95 0:772bf4786416 40
bmanga95 0:772bf4786416 41
bmanga95 0:772bf4786416 42
bmanga95 0:772bf4786416 43 int millis();
bmanga95 0:772bf4786416 44
bmanga95 0:772bf4786416 45 /***************************************************/
bmanga95 0:772bf4786416 46
bmanga95 0:772bf4786416 47 class I2C_MBED: public I2C_base
bmanga95 0:772bf4786416 48 {
bmanga95 0:772bf4786416 49 public:
bmanga95 0:772bf4786416 50 I2C_MBED (PinName pSDA, PinName pSCL): _i2c(pSDA,pSCL){}
bmanga95 0:772bf4786416 51 virtual void frequency (int hz)
bmanga95 0:772bf4786416 52 {
bmanga95 0:772bf4786416 53 _i2c.frequency(hz);
bmanga95 0:772bf4786416 54 }
bmanga95 0:772bf4786416 55 virtual bool read(int address, byte* data, int length)
bmanga95 0:772bf4786416 56 {
bmanga95 0:772bf4786416 57 return !_i2c.read(address<<1,data,length);
bmanga95 0:772bf4786416 58 }
bmanga95 0:772bf4786416 59 virtual bool write(int address, const byte* data, int length)
bmanga95 0:772bf4786416 60 {
bmanga95 0:772bf4786416 61 return !_i2c.write(address<<1,data,length);
bmanga95 0:772bf4786416 62 }
bmanga95 0:772bf4786416 63 virtual bool writeByte(int address, byte data)
bmanga95 0:772bf4786416 64 {
bmanga95 0:772bf4786416 65 return write(address, &data, 1);
bmanga95 0:772bf4786416 66 }
bmanga95 0:772bf4786416 67
bmanga95 0:772bf4786416 68 private:
bmanga95 0:772bf4786416 69 I2C _i2c;
bmanga95 0:772bf4786416 70 };
bmanga95 0:772bf4786416 71
bmanga95 0:772bf4786416 72
bmanga95 0:772bf4786416 73
bmanga95 0:772bf4786416 74 #endif //_MBED_
bmanga95 0:772bf4786416 75
bmanga95 0:772bf4786416 76
bmanga95 0:772bf4786416 77 #endif //I2C_BASE_H