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STM32 GPIO control interface. More...

#include <io/stm32.h>

Go to the source code of this file.

Enumerations

enum
	GPIO mode.

enum
	GPIO speed.
Functions
void	stm32_gpioPinWrite (struct stm32_gpio *base, uint16_t pins, bool val)
	Write a value to the specified pin(s)
uint16_t	stm32_gpioPinRead (struct stm32_gpio *base, uint16_t pins)
	Read a value from the specified pin(s)
int	stm32_gpioPinConfig (struct stm32_gpio *base, uint16_t pins, uint8_t mode, uint8_t speed)
	Initialize a GPIO peripheral configuration.

Detailed Description

STM32 GPIO control interface.

Definition in file gpio_stm32.h.

Function Documentation

int stm32_gpioPinConfig	(	struct stm32_gpio *	base,
		uint16_t	pins,
		uint8_t	mode,
		uint8_t	speed
	)

Initialize a GPIO peripheral configuration.

Parameters:

base	gpio register address
pins	mask of pins that we want to configure
mode	select the behaviour of selected pins
speed	clock frequency for selected gpio ports

Initialize a GPIO peripheral configuration.

Parameters:

base	Base address of the GPIO port
pins	Bit-packed representation of the pin(s)
mode	Pin(s) configuration mode
speed	Output drive speed

Return 0 on success, otherwise a negative value.

Definition at line 56 of file gpio_stm32.c.

uint16_t stm32_gpioPinRead	(	struct stm32_gpio *	base,
		uint16_t	pins
	)		`[inline]`

Read a value from the specified pin(s)

Parameters:

base	gpio register address
pins	mask of pins that we want read

Definition at line 91 of file gpio_stm32.h.

void stm32_gpioPinWrite	(	struct stm32_gpio *	base,
		uint16_t	pins,
		bool	val
	)		`[inline]`

Write a value to the specified pin(s)

Parameters:

base	gpio register address
pins	mask of pins that we want set or clear
val	true to set selected pins of false to clear they.

Definition at line 77 of file gpio_stm32.h.