Martin Johnson / STM32F3-Discovery

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Initialization and Configuration
Functions

Initialization and Configuration
[GPIO_Private_Functions]

Initialization and Configuration. More...

Functions

void GPIO_DeInit (GPIO_TypeDef *GPIOx)
 Deinitializes the GPIOx peripheral registers to their default reset values.
void GPIO_Init (GPIO_TypeDef *GPIOx, GPIO_InitTypeDef *GPIO_InitStruct)
 Initializes the GPIOx peripheral according to the specified parameters in the GPIO_InitStruct.
void GPIO_StructInit (GPIO_InitTypeDef *GPIO_InitStruct)
 Fills each GPIO_InitStruct member with its default value.
void GPIO_PinLockConfig (GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
 Locks GPIO Pins configuration registers.

Detailed Description

Initialization and Configuration. 

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            ##### Initialization and Configuration #####
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Function Documentation

void GPIO_DeInit ( GPIO_TypeDef *  GPIOx )

Deinitializes the GPIOx peripheral registers to their default reset values.

Parameters:
GPIOx,:where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
Return values:
None

Definition at line 121 of file stm32f30x_gpio.c.

void GPIO_Init ( GPIO_TypeDef *  GPIOx,
GPIO_InitTypeDef *  GPIO_InitStruct 
)

Initializes the GPIOx peripheral according to the specified parameters in the GPIO_InitStruct.

Parameters:
GPIOx,:where x can be (A, B, C, D, E, F, G or H) to select the GPIO peripheral.
GPIO_InitStruct,:pointer to a GPIO_InitTypeDef structure that contains the configuration information for the specified GPIO peripheral.
Note:
GPIO_Pin: selects the pin to be configured: GPIO_Pin_0->GPIO_Pin_15 for GPIOA, GPIOB, GPIOC, GPIOD and GPIOE; GPIO_Pin_0->GPIO_Pin_2, GPIO_Pin_4, GPIO_Pin_6, GPIO_Pin_9 and GPIO_Pin_10 for GPIOF.
Return values:
None

Definition at line 184 of file stm32f30x_gpio.c.

void GPIO_PinLockConfig ( GPIO_TypeDef *  GPIOx,
uint16_t  GPIO_Pin 
)

Locks GPIO Pins configuration registers.

The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR, GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH.

Note:
The configuration of the locked GPIO pins can no longer be modified until the next reset.
Parameters:
GPIOx,:where x can be (A or B or D) to select the GPIO peripheral.
GPIO_Pin,:specifies the port bit to be written. This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
Return values:
None

Definition at line 264 of file stm32f30x_gpio.c.

void GPIO_StructInit ( GPIO_InitTypeDef *  GPIO_InitStruct )

Fills each GPIO_InitStruct member with its default value.

Parameters:
GPIO_InitStruct,:pointer to a GPIO_InitTypeDef structure which will be initialized.
Return values:
None

Definition at line 243 of file stm32f30x_gpio.c.

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