(MBED) implementation of the I2C interface
Dependents: MCP23009tst AT30TSE752TST MCP4728setaddrProg mbedSerialInterface_talkback2 ... more
MBEDI2CInterface.h@1:80ebfbf95667, 2016-01-12 (annotated)
- Committer:
- wbeaumont
- Date:
- Tue Jan 12 15:45:51 2016 +0000
- Revision:
- 1:80ebfbf95667
- Parent:
- 0:c65947f64a8b
- Child:
- 2:b7ebe53e8fac
corrected init order of the class
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
wbeaumont | 0:c65947f64a8b | 1 | #ifndef __MBEDI2CINTERFACE_H |
wbeaumont | 0:c65947f64a8b | 2 | #define __MBEDI2CINTERFACE_H |
wbeaumont | 0:c65947f64a8b | 3 | |
wbeaumont | 0:c65947f64a8b | 4 | #define VERSION_MBEDI2CInterface_HDR "1.00" |
wbeaumont | 0:c65947f64a8b | 5 | |
wbeaumont | 0:c65947f64a8b | 6 | |
wbeaumont | 0:c65947f64a8b | 7 | class MBEDI2CInterface :public I2CInterface { |
wbeaumont | 0:c65947f64a8b | 8 | |
wbeaumont | 0:c65947f64a8b | 9 | I2C i2cdev; |
wbeaumont | 0:c65947f64a8b | 10 | public : |
wbeaumont | 0:c65947f64a8b | 11 | |
wbeaumont | 1:80ebfbf95667 | 12 | MBEDI2CInterface(PinName sda, PinName scl): |
wbeaumont | 1:80ebfbf95667 | 13 | getVersion( VERSION_MBEDI2CInterface_HDR,VERSION_MBEDI2CInterface_HDR, __TIME__, __DATE__),i2cdev(sda,scl){ |
wbeaumont | 0:c65947f64a8b | 14 | // no init code yet |
wbeaumont | 0:c65947f64a8b | 15 | } ; |
wbeaumont | 0:c65947f64a8b | 16 | // next could perhaps more efficient but not yet investigated |
wbeaumont | 0:c65947f64a8b | 17 | virtual void frequency (int hz){return i2cdev.frequency(hz) ;}; |
wbeaumont | 0:c65947f64a8b | 18 | virtual int read (int address, char *data, int length, bool repeated=false){ |
wbeaumont | 0:c65947f64a8b | 19 | return i2cdev.read ( address, data, length, repeated);}; |
wbeaumont | 0:c65947f64a8b | 20 | virtual int read (int ack){return i2cdev.read ( ack);};// Read a single byte from the I2C bus. |
wbeaumont | 0:c65947f64a8b | 21 | virtual int write (int address, const char *data, int length, bool repeated=false){ |
wbeaumont | 0:c65947f64a8b | 22 | return i2cdev.write ( address, data, length, repeated); |
wbeaumont | 0:c65947f64a8b | 23 | } |
wbeaumont | 0:c65947f64a8b | 24 | virtual int write (int data){return i2cdev.write (data);};// Write single byte out on the I2C bus. |
wbeaumont | 0:c65947f64a8b | 25 | virtual void start (void){i2cdev.start ();};// Creates a start condition on the I2C bus. |
wbeaumont | 0:c65947f64a8b | 26 | virtual void stop (void){i2cdev.stop();};// Creates a stop condition on the I2C bus. |
wbeaumont | 0:c65947f64a8b | 27 | virtual int transfer (int address, const char *tx_buffer, int tx_length, char *rx_buffer, int rx_length, void* callbackfunction, bool repeated=false){ |
wbeaumont | 0:c65947f64a8b | 28 | return -1; // seems transfer not supported in mbed or not correctly called below |
wbeaumont | 0:c65947f64a8b | 29 | // return i2cdev.transfer (address, tx_buffer, tx_length, rx_buffer, rx_length, callback, event, repeated); |
wbeaumont | 0:c65947f64a8b | 30 | }; |
wbeaumont | 0:c65947f64a8b | 31 | |
wbeaumont | 0:c65947f64a8b | 32 | |
wbeaumont | 0:c65947f64a8b | 33 | } ; |
wbeaumont | 0:c65947f64a8b | 34 | |
wbeaumont | 0:c65947f64a8b | 35 | |
wbeaumont | 0:c65947f64a8b | 36 | |
wbeaumont | 0:c65947f64a8b | 37 | |
wbeaumont | 0:c65947f64a8b | 38 | |
wbeaumont | 0:c65947f64a8b | 39 | #endif |