Functions
uint32_t	alt_gpio_port_idcode_get (ALT_GPIO_PORT_t gpio_pid)

uint32_t	alt_gpio_port_ver_get (ALT_GPIO_PORT_t gpio_pid)

ALT_GPIO_PORT_t	alt_gpio_bit_to_pid (ALT_GPIO_1BIT_t pin_num)

ALT_GPIO_PORTBIT_t	alt_gpio_bit_to_port_pin (ALT_GPIO_1BIT_t pin_num)

ALT_GPIO_1BIT_t	alt_gpio_port_pin_to_bit (ALT_GPIO_PORT_t pid, uint32_t bitmask)

Detailed Description

These are useful utility functions for the general-purpose input & output module.

Function Documentation

◆ alt_gpio_bit_to_pid()

ALT_GPIO_PORT_t alt_gpio_bit_to_pid ( ALT_GPIO_1BIT_t pin_num )

Extracts the GPIO port ID from the supplied GPIO Signal Index Number.

◆ alt_gpio_bit_to_port_pin()

ALT_GPIO_PORTBIT_t alt_gpio_bit_to_port_pin ( ALT_GPIO_1BIT_t pin_num )

Extracts the GPIO signal (pin) offset from the supplied GPIO Signal Index Number.

◆ alt_gpio_port_idcode_get()

uint32_t alt_gpio_port_idcode_get ( ALT_GPIO_PORT_t gpio_pid )

Returns the ID code of the specified GPIO module.

Parameters

gpio_pid The GPIO port identifier.

Return values

uint32_t The component code of the module, GPIO_MODULE_IDCODE.

◆ alt_gpio_port_pin_to_bit()

ALT_GPIO_1BIT_t alt_gpio_port_pin_to_bit	(	ALT_GPIO_PORT_t	pid,
		uint32_t	bitmask
	)

Extracts the GPIO Signal Index Number from the supplied GPIO port ID and signal mask. If passed a bitmask composed of more than one signal, the signal number of the lowest bit in the bitmask presented is returned.

◆ alt_gpio_port_ver_get()

uint32_t alt_gpio_port_ver_get ( ALT_GPIO_PORT_t gpio_pid )

Returns the version code of the specified GPIO module.