A multiple pin digital output. More...

#include <PortOut.h>

Public Member Functions
	PortOut (PortName port, int mask=0xFFFFFFFF)
	Create a PortOut, connected to the specified port.

void	write (int value)
	Write the value to the output port.

int	read ()
	Read the value currently output on the port.

PortOut &	operator= (int value)
	A shorthand for write()

PortOut &	operator= (PortOut &rhs)
	A shorthand for read()

	operator int ()
	A shorthand for read()

Detailed Description

A multiple pin digital output.

Note: Synchronization level: Interrupt safe

Example:

// Toggle all four LEDs
 
#include "mbed.h"
 
// LED1 = P1.18  LED2 = P1.20  LED3 = P1.21  LED4 = P1.23
#define LED_MASK 0x00B40000
 
PortOut ledport(Port1, LED_MASK);
 
int main() {
    while(1) {
        ledport = LED_MASK;
        ThisThread::sleep_for(1000);
        ledport = 0;
        ThisThread::sleep_for(1000);
    }
}

Definition at line 58 of file PortOut.h.

Constructor & Destructor Documentation

◆ PortOut()

PortOut	(	PortName	port,
		int	mask = `0xFFFFFFFF`
	)

Create a PortOut, connected to the specified port.

Parameters

port	Port to connect to (as defined in target's PortNames.h)
mask	Bitmask defines which port pins are an output (0 - ignore, 1 - include)

Member Function Documentation

◆ write()

void write ( int value )

Write the value to the output port.

Parameters

value An integer specifying a bit to write for every corresponding PortOut pin

Definition at line 72 of file PortOut.h.

◆ read()

int read ( )

Read the value currently output on the port.

Returns: An integer with each bit corresponding to associated pin value

Definition at line 82 of file PortOut.h.

◆ operator=() [1/2]

PortOut & operator= ( int value )

A shorthand for write()

See also: PortOut::write()

Definition at line 90 of file PortOut.h.

◆ operator=() [2/2]

PortOut & operator= ( PortOut & rhs )

A shorthand for read()

See also: PortOut::read()

Definition at line 99 of file PortOut.h.

◆ operator int()

operator int ( )