ST STM32F31xx

UM1581
General-purpose I/Os (GPIO)
DocID023800 Rev 1
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 GPIO_PinAFConfig()
12.2.5 Initialization and Configuration
12.2.5.1 GPIO_DeInit
Function Name
void GPIO_DeInit ( GPIO_TypeDef * GPIOx)
Function Description
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.
Notes
 None.
12.2.5.2 GPIO_Init
Function Name
void GPIO_Init ( GPIO_TypeDef * GPIOx, GPIO_InitTypeDef *
GPIO_InitStruct)
Function Description
Initializes the GPIOx peripheral according to the specified
parameters in the GPIO_InitStruct.
Parameters
 GPIOx : where x can be (A, B, C, D, E or F) to select the
GPIO peripheral.
 GPIO_InitStruct : pointer to a GPIO_InitTypeDef structure
that contains the configuration information for the specified
GPIO peripheral.
Return values
 None.
Notes
 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.
12.2.5.3 GPIO_StructInit
Function Name
void GPIO_StructInit ( GPIO_InitTypeDef * GPIO_InitStruct)