mbed libraries for KL25Z
BusInOut.h
- Committer:
- emilmont
- Date:
- 2012-11-09
- Revision:
- 8:c14af7958ef5
- Parent:
- 0:8024c367e29f
- Child:
- 9:663789d7729f
File content as of revision 8:c14af7958ef5:
/* mbed Microcontroller Library - BusInOut * Copyright (c) 2009 ARM Limited. All rights reserved. */ #ifndef MBED_BUSINOUT_H #define MBED_BUSINOUT_H #include "DigitalInOut.h" namespace mbed { /** A digital input output bus, used for setting the state of a collection of pins */ class BusInOut { public: /** Create an BusInOut, connected to the specified pins * * @param p<n> DigitalInOut pin to connect to bus bit p<n> (p5-p30, NC) * * @note * It is only required to specify as many pin variables as is required * for the bus; the rest will default to NC (not connected) */ BusInOut(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC, PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC, PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC, PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC); BusInOut(PinName pins[16]); virtual ~BusInOut(); /* Group: Access Methods */ /** Write the value to the output bus * * @param value An integer specifying a bit to write for every corresponding DigitalInOut pin */ void write(int value); /** Read the value currently output on the bus * * @returns * An integer with each bit corresponding to associated DigitalInOut pin setting */ int read(); /** Set as an output */ void output(); /** Set as an input */ void input(); /** Set the input pin mode * * @param mode PullUp, PullDown, PullNone */ void mode(PinMode pull); #ifdef MBED_OPERATORS /** A shorthand for write() */ BusInOut& operator= (int v); BusInOut& operator= (BusInOut& rhs); /** A shorthand for read() */ operator int(); #endif protected: DigitalInOut* _pin[16]; }; } // namespace mbed #endif