Configuration enumerations and structures for the GPIO driver. More...

Collaboration diagram for GPIO Types:

Classes
struct	GPIO_CFG_ts
	Configuration structure for initializing a GPIO pin. More...

Enumerations
enum	GPIO_PIN_te { GPIO_PIN_0 , GPIO_PIN_1 , GPIO_PIN_2 , GPIO_PIN_3 , GPIO_PIN_4 , GPIO_PIN_5 , GPIO_PIN_6 , GPIO_PIN_7 , GPIO_PIN_8 , GPIO_PIN_9 , GPIO_PIN_10 , GPIO_PIN_11 , GPIO_PIN_12 , GPIO_PIN_13 , GPIO_PIN_14 , GPIO_PIN_15 }
	GPIO pin number within a port (0–15). More...
enum	GPIO_MODE_te { GPIO_MODE_INPUT , GPIO_MODE_OUTPUT , GPIO_MODE_ALTERNATE_FUNCTION , GPIO_MODE_ANALOG , GPIO_MODE_INTERRUPT }
	GPIO pin operating mode. More...
enum	GPIO_OUTPUT_TYPE_te { GPIO_OUTPUT_TYPE_PUSHPULL , GPIO_OUTPUT_TYPE_OPENDRAIN }
	GPIO output driver type. More...
enum	GPIO_OUTPUT_SPEED_te { GPIO_OUTPUT_SPEED_LOW , GPIO_OUTPUT_SPEED_MEDIUM , GPIO_OUTPUT_SPEED_HIGH , GPIO_OUTPUT_SPEED_VERYHIGH }
	GPIO output slew rate / speed. More...
enum	GPIO_PULL_MODE_te { GPIO_PULL_MODE_NOPUPD , GPIO_PULL_MODE_PU , GPIO_PULL_MODE_PD }
	GPIO internal pull-up / pull-down resistor configuration. More...
enum	GPIO_ALTERNATE_FUNCTION_te { GPIO_ALTERNATE_FUNCTION_AF0 , GPIO_ALTERNATE_FUNCTION_AF1 , GPIO_ALTERNATE_FUNCTION_AF2 , GPIO_ALTERNATE_FUNCTION_AF3 , GPIO_ALTERNATE_FUNCTION_AF4 , GPIO_ALTERNATE_FUNCTION_AF5 , GPIO_ALTERNATE_FUNCTION_AF6 , GPIO_ALTERNATE_FUNCTION_AF7 , GPIO_ALTERNATE_FUNCTION_AF8 , GPIO_ALTERNATE_FUNCTION_AF9 , GPIO_ALTERNATE_FUNCTION_AF10 , GPIO_ALTERNATE_FUNCTION_AF11 , GPIO_ALTERNATE_FUNCTION_AF12 , GPIO_ALTERNATE_FUNCTION_AF13 , GPIO_ALTERNATE_FUNCTION_AF14 , GPIO_ALTERNATE_FUNCTION_AF15 }
	GPIO alternate function mapping (AF0–AF15). More...
enum	GPIO_INTERRUPT_TRIGGER_te { GPIO_INTERRUPT_TRIGGER_RE , GPIO_INTERRUPT_TRIGGER_FE , GPIO_INTERRUPT_TRIGGER_RFE }
	EXTI edge trigger selection for interrupt mode. More...

Detailed Description

Configuration enumerations and structures for the GPIO driver.

Enumeration Type Documentation

◆ GPIO_PIN_te

enum GPIO_PIN_te

GPIO pin number within a port (0–15).

Enumerator
GPIO_PIN_0	Pin 0.
GPIO_PIN_1	Pin 1.
GPIO_PIN_2	Pin 2.
GPIO_PIN_3	Pin 3.
GPIO_PIN_4	Pin 4.
GPIO_PIN_5	Pin 5.
GPIO_PIN_6	Pin 6.
GPIO_PIN_7	Pin 7.
GPIO_PIN_8	Pin 8.
GPIO_PIN_9	Pin 9.
GPIO_PIN_10	Pin 10.
GPIO_PIN_11	Pin 11.
GPIO_PIN_12	Pin 12.
GPIO_PIN_13	Pin 13.
GPIO_PIN_14	Pin 14.
GPIO_PIN_15	Pin 15.

Definition at line 50 of file stm32f401re_gpio.h.

             {
    GPIO_PIN_0,  
    GPIO_PIN_1,  
    GPIO_PIN_2,  
    GPIO_PIN_3,  
    GPIO_PIN_4,  
    GPIO_PIN_5,  
    GPIO_PIN_6,  
    GPIO_PIN_7,  
    GPIO_PIN_8,  
    GPIO_PIN_9,  
    GPIO_PIN_10, 
    GPIO_PIN_11, 
    GPIO_PIN_12, 
    GPIO_PIN_13, 
    GPIO_PIN_14, 
    GPIO_PIN_15  
} GPIO_PIN_te;

◆ GPIO_MODE_te

enum GPIO_MODE_te

GPIO pin operating mode.

GPIO_MODE_INPUT and GPIO_MODE_OUTPUT write to MODER.
GPIO_MODE_ALTERNATE_FUNCTION enables the AFR registers.
GPIO_MODE_ANALOG disables the digital buffer (for ADC).
GPIO_MODE_INTERRUPT configures SYSCFG EXTICR, EXTI IMR/RTSR/FTSR, and the NVIC rather than MODER.

Enumerator
GPIO_MODE_INPUT	Digital input mode.
GPIO_MODE_OUTPUT	Digital output mode.
GPIO_MODE_ALTERNATE_FUNCTION	Alternate function mode (peripheral routing).
GPIO_MODE_ANALOG	Analog mode (digital buffer disabled).
GPIO_MODE_INTERRUPT	External interrupt mode (EXTI + NVIC configured).

Definition at line 79 of file stm32f401re_gpio.h.

             {
    GPIO_MODE_INPUT,              
    GPIO_MODE_OUTPUT,             
    GPIO_MODE_ALTERNATE_FUNCTION, 
    GPIO_MODE_ANALOG,             
    GPIO_MODE_INTERRUPT           
} GPIO_MODE_te;

◆ GPIO_OUTPUT_TYPE_te

enum GPIO_OUTPUT_TYPE_te

GPIO output driver type.

Enumerator
GPIO_OUTPUT_TYPE_PUSHPULL	Push-pull output (actively drives both HIGH and LOW).
GPIO_OUTPUT_TYPE_OPENDRAIN	Open-drain output (actively pulls LOW; HIGH is floating).

Definition at line 90 of file stm32f401re_gpio.h.

             {
    GPIO_OUTPUT_TYPE_PUSHPULL,  
    GPIO_OUTPUT_TYPE_OPENDRAIN  
} GPIO_OUTPUT_TYPE_te;

◆ GPIO_OUTPUT_SPEED_te

enum GPIO_OUTPUT_SPEED_te

GPIO output slew rate / speed.

Higher speed settings increase current consumption and EMI. Select the lowest speed adequate for the signal frequency.

Enumerator
GPIO_OUTPUT_SPEED_LOW	Low speed (~2 MHz).
GPIO_OUTPUT_SPEED_MEDIUM	Medium speed (~25 MHz).
GPIO_OUTPUT_SPEED_HIGH	High speed (~50 MHz).
GPIO_OUTPUT_SPEED_VERYHIGH	Very high speed (~100 MHz).

Definition at line 102 of file stm32f401re_gpio.h.

             {
    GPIO_OUTPUT_SPEED_LOW,      
    GPIO_OUTPUT_SPEED_MEDIUM,   
    GPIO_OUTPUT_SPEED_HIGH,     
    GPIO_OUTPUT_SPEED_VERYHIGH  
} GPIO_OUTPUT_SPEED_te;

◆ GPIO_PULL_MODE_te

enum GPIO_PULL_MODE_te

GPIO internal pull-up / pull-down resistor configuration.

Enumerator
GPIO_PULL_MODE_NOPUPD	No pull-up or pull-down resistor.
GPIO_PULL_MODE_PU	Internal pull-up resistor enabled.
GPIO_PULL_MODE_PD	Internal pull-down resistor enabled.

Definition at line 112 of file stm32f401re_gpio.h.

             {
    GPIO_PULL_MODE_NOPUPD, 
    GPIO_PULL_MODE_PU,     
    GPIO_PULL_MODE_PD      
} GPIO_PULL_MODE_te;

◆ GPIO_ALTERNATE_FUNCTION_te

enum GPIO_ALTERNATE_FUNCTION_te

GPIO alternate function mapping (AF0–AF15).

The mapping between AF numbers and on-chip peripherals is device-specific. Refer to the STM32F401RE datasheet alternate function table for the correct AF number for each pin/peripheral combination.

Enumerator
GPIO_ALTERNATE_FUNCTION_AF0	Alternate function 0 (e.g. SYS, MCO).
GPIO_ALTERNATE_FUNCTION_AF1	Alternate function 1 (e.g. TIM1/TIM2).
GPIO_ALTERNATE_FUNCTION_AF2	Alternate function 2 (e.g. TIM3–TIM5).
GPIO_ALTERNATE_FUNCTION_AF3	Alternate function 3 (e.g. TIM9–TIM11).
GPIO_ALTERNATE_FUNCTION_AF4	Alternate function 4 (e.g. I2C1–I2C3).
GPIO_ALTERNATE_FUNCTION_AF5	Alternate function 5 (e.g. SPI1–SPI4).
GPIO_ALTERNATE_FUNCTION_AF6	Alternate function 6 (e.g. SPI3).
GPIO_ALTERNATE_FUNCTION_AF7	Alternate function 7 (e.g. USART1–USART2).
GPIO_ALTERNATE_FUNCTION_AF8	Alternate function 8 (e.g. USART6).
GPIO_ALTERNATE_FUNCTION_AF9	Alternate function 9 (e.g. I2C2–I2C3, CAN).
GPIO_ALTERNATE_FUNCTION_AF10	Alternate function 10 (e.g. OTG_FS).
GPIO_ALTERNATE_FUNCTION_AF11	Alternate function 11 (reserved).
GPIO_ALTERNATE_FUNCTION_AF12	Alternate function 12 (e.g. SDIO).
GPIO_ALTERNATE_FUNCTION_AF13	Alternate function 13 (reserved).
GPIO_ALTERNATE_FUNCTION_AF14	Alternate function 14 (reserved).
GPIO_ALTERNATE_FUNCTION_AF15	Alternate function 15 (EVENTOUT).

Definition at line 126 of file stm32f401re_gpio.h.

             {
    GPIO_ALTERNATE_FUNCTION_AF0,  
    GPIO_ALTERNATE_FUNCTION_AF1,  
    GPIO_ALTERNATE_FUNCTION_AF2,  
    GPIO_ALTERNATE_FUNCTION_AF3,  
    GPIO_ALTERNATE_FUNCTION_AF4,  
    GPIO_ALTERNATE_FUNCTION_AF5,  
    GPIO_ALTERNATE_FUNCTION_AF6,  
    GPIO_ALTERNATE_FUNCTION_AF7,  
    GPIO_ALTERNATE_FUNCTION_AF8,  
    GPIO_ALTERNATE_FUNCTION_AF9,  
    GPIO_ALTERNATE_FUNCTION_AF10, 
    GPIO_ALTERNATE_FUNCTION_AF11, 
    GPIO_ALTERNATE_FUNCTION_AF12, 
    GPIO_ALTERNATE_FUNCTION_AF13, 
    GPIO_ALTERNATE_FUNCTION_AF14, 
    GPIO_ALTERNATE_FUNCTION_AF15  
} GPIO_ALTERNATE_FUNCTION_te;

◆ GPIO_INTERRUPT_TRIGGER_te

enum GPIO_INTERRUPT_TRIGGER_te

EXTI edge trigger selection for interrupt mode.

Only used when GPIO_CFG_ts::mode is GPIO_MODE_INTERRUPT.

Enumerator
GPIO_INTERRUPT_TRIGGER_RE	Trigger on rising edge only.
GPIO_INTERRUPT_TRIGGER_FE	Trigger on falling edge only.
GPIO_INTERRUPT_TRIGGER_RFE	Trigger on both rising and falling edges.

Definition at line 151 of file stm32f401re_gpio.h.

             {
    GPIO_INTERRUPT_TRIGGER_RE,  
    GPIO_INTERRUPT_TRIGGER_FE,  
    GPIO_INTERRUPT_TRIGGER_RFE  
} GPIO_INTERRUPT_TRIGGER_te;

Classes

Enumerations