digital_io.h File Reference

Header for digital_io module. More...

#include "wiring.h"
#include "PinNames.h"
#include "pinmap.h"
#include "stm32yyxx_ll_gpio.h"

Functions
static void	digital_io_write (GPIO_TypeDef *port, uint32_t pin, uint32_t val)
	Set a value to an IO.
static uint32_t	digital_io_read (GPIO_TypeDef *port, uint32_t pin)
	Read the value of an IO.
static void	digital_io_toggle (GPIO_TypeDef *port, uint32_t pin)
	Toggle the value of an IO.
static void	digitalWriteFast (PinName pn, uint32_t ulVal)
	Set a value to an IO, without any pin configuration or check (fast version of digitalWrite()).
static PinStatus	digitalReadFast (PinName pn)
	Read the value of an IO, without any pin configuration or check (fast version of digitalRead()).
static void	digitalToggleFast (PinName pn)
	Toggle the value of an IO, without any pin configuration or check.

Detailed Description

Header for digital_io module.

Attention

© COPYRIGHT(c) 2016 STMicroelectronics

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Function Documentation

digital_io_read()

static uint32_t digital_io_read ( GPIO_TypeDef *  port, uint32_t  pin  )

inlinestatic

Read the value of an IO.

Parameters

port	One of the GPIO ports.
pin	One of the GPIO pins.

Returns

The pin state (LOW or HIGH).

digital_io_toggle()

static void digital_io_toggle ( GPIO_TypeDef *  port, uint32_t  pin  )

inlinestatic

Toggle the value of an IO.

Parameters

port	One of the GPIO ports.
pin	One of the GPIO pins.

digital_io_write()

static void digital_io_write ( GPIO_TypeDef *  port, uint32_t  pin, uint32_t  val  )

inlinestatic

Set a value to an IO.

Parameters

port	One of the GPIO ports.
pin	One of the GPIO pins.
val	0 to set to low, any other value to set to high.

digitalReadFast()

static PinStatus digitalReadFast ( PinName  pn )

inlinestatic

Read the value of an IO, without any pin configuration or check (fast version of digitalRead()).

Parameters

pn

Pin name.

Returns

The pin state (LOW or HIGH).

Note

The pin must have been configured beforehand, e.g. with pinMode().

digitalToggleFast()

static void digitalToggleFast ( PinName  pn )

inlinestatic

Toggle the value of an IO, without any pin configuration or check.

Parameters

pn

Pin name.

Note

The pin must have been configured as output beforehand, e.g. with pinMode().

digitalWriteFast()

static void digitalWriteFast ( PinName  pn, uint32_t  ulVal  )

inlinestatic

Set a value to an IO, without any pin configuration or check (fast version of digitalWrite()).

Parameters

pn	Pin name.
ulVal	0 to set to low, any other value to set to high.

Note

The pin must have been configured as output beforehand, e.g. with pinMode().