Structure to define the HW dependencies of a keyboard status. More...

#include <stm32f4_keyboard.h>

Data Fields
const keyboard_t *	p_keyboard

GPIO_TypeDef **	p_row_ports

uint8_t *	p_row_pins

GPIO_TypeDef **	p_col_ports

uint8_t *	p_col_pins

bool	flag_key_pressed

bool	flag_row_timeout

uint8_t	col_idx_interrupt

uint8_t	current_excited_row

Detailed Description

Structure to define the HW dependencies of a keyboard status.

Because the rows and columns GPIO ports and pins are variable-length arrays depending on the keyboard layout, double pointers are used to define GPIOs (because GPIOs are defined as pointers of GPIO_TypeDef type) and pointers are used to define the arrays of rows and columns.

Field Documentation

◆ col_idx_interrupt

uint8_t stm32f4_keyboard_hw_t::col_idx_interrupt

Index of the column that provoked an interrupt

◆ current_excited_row

uint8_t stm32f4_keyboard_hw_t::current_excited_row

Current row being excited

◆ flag_key_pressed

bool stm32f4_keyboard_hw_t::flag_key_pressed

Flag to indicate that a key has been pressed

◆ flag_row_timeout

bool stm32f4_keyboard_hw_t::flag_row_timeout

Flag to indicate that the column scanning timeout has occurred

◆ p_col_pins

uint8_t* stm32f4_keyboard_hw_t::p_col_pins

Pointer to an array of pins/lines where the keyboard columns are connected

◆ p_col_ports

GPIO_TypeDef** stm32f4_keyboard_hw_t::p_col_ports

Pointer to an array of GPIO ports where the keyboard columns are connected

◆ p_keyboard

const keyboard_t* stm32f4_keyboard_hw_t::p_keyboard

Pointer to the keyboard structure

◆ p_row_pins

uint8_t* stm32f4_keyboard_hw_t::p_row_pins

Pointer to an array of pins/lines where the keyboard rows are connected

◆ p_row_ports

GPIO_TypeDef** stm32f4_keyboard_hw_t::p_row_ports

Pointer to an array of GPIO ports where the keyboard rows are connected

The documentation for this struct was generated from the following file:

port/stm32f4/include/stm32f4_keyboard.h

Data Fields