Bremen Team - Hangar / SML2

Implemented first Hangar-Service

Dependencies:   CalibrateMagneto QuaternionMath

Fork of SML2 by TobyRich GmbH

PowerAwareI2C.h

Committer:
pvaibhav
Date:
2015-05-05
Revision:
33:bd56fc8aeb0a
Parent:
32:d37447aec6b4
Child:
46:fd5a62296b12

File content as of revision 33:bd56fc8aeb0a:

#ifndef _H_POWERAWAREI2C_H
#define _H_POWERAWAREI2C_H

#include "mbed.h"
#include "i2c_api.h"

/// This is a variation of I2C class from mbed, which adds power on and off functions to the I2C peripheral. This should save about 1 mA.
class PowerAwareI2C : public I2C
{
public:
    PowerAwareI2C(PinName sda, PinName scl) : I2C(sda, scl) {}
    
    /// Power on the I2C peripheral
    void powerOn()
    {
        _i2c.i2c->ENABLE = (TWI_ENABLE_ENABLE_Enabled << TWI_ENABLE_ENABLE_Pos);
    }
    
    /// Power off the I2C peripheral     
    void powerOff()
    {
        _i2c.i2c->ENABLE = TWI_ENABLE_ENABLE_Disabled << TWI_ENABLE_ENABLE_Pos;
        _i2c.i2c->POWER  = 0;
    }
};

#endif//_H_POWERAWAREI2C_H