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. More...

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

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

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

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

	operator int ()
	A shorthand for read() More...

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	(	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

operator int ( )

A shorthand for read()

See also: PortOut::read()

Definition at line 108 of file PortOut.h.

PortOut& operator= ( int value )

A shorthand for write()

See also: PortOut::write()

Definition at line 90 of file PortOut.h.

PortOut& operator= ( PortOut & rhs )

A shorthand for read()

See also: PortOut::read()

Definition at line 99 of file PortOut.h.

int read ( void )

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.

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.

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Important Information for this Arm website