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BusInOut Class Reference
Public Member Functions

BusInOut Class Reference

A digital input output bus, used for setting the state of a collection of pins. More...

#include <BusInOut.h>

Public Member Functions

 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)
 Create an BusInOut, connected to the specified pins.
void write (int value)
 Write the value to the output bus.
int read ()
 Read the value currently output on the bus.
void output ()
 Set as an output.
void input ()
 Set as an input.
void mode (PinMode pull)
 Set the input pin mode.
BusInOut & operator= (int v)
 A shorthand for write()
 operator int ()
 A shorthand for read()

Detailed Description

A digital input output bus, used for setting the state of a collection of pins.

Definition at line 25 of file BusInOut.h.

Constructor & Destructor Documentation

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 
)

Create an BusInOut, connected to the specified pins.

Parameters:
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)

Member Function Documentation

void input (  )

Set as an input.

void mode ( PinMode  pull )

Set the input pin mode.

Parameters:
modePullUp, PullDown, PullNone
operator int (  )

A shorthand for read()

BusInOut& operator= ( int  v )

A shorthand for write()

void output (  )

Set as an output.

int read (  )

Read the value currently output on the bus.

Returns:
An integer with each bit corresponding to associated DigitalInOut pin setting
void write ( int  value )

Write the value to the output bus.

Parameters:
valueAn integer specifying a bit to write for every corresponding DigitalInOut pin
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