ST STM32F31xx User Manual

UM1581
General-purpose I/Os (GPIO)
DocID023800 Rev 1
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Function Name
void GPIO_WriteBit ( GPIO_TypeDef * GPIOx, uint16_t
GPIO_Pin, BitAction BitVal)
Function Description
Sets or clears the selected data port bit.
Parameters
 GPIOx : where x can be (A, B, C, D, E or F) to select the
GPIO peripheral.
 GPIO_Pin : specifies the port bit to be written.
Parameters
 BitVal : specifies the value to be written to the selected bit.
This parameter can be one of the BitAction enumeration
values:
 Bit_RESET : to clear the port pin
 Bit_SET : to set the port pin
Return values
 None.
Notes
 This parameter can be GPIO_Pin_x where x can be : (0..15)
for GPIOA, GPIOB, GPIOC, GPIOD or GPIOE; (0..2, 4, 6,
9..10) for GPIOF.
12.2.6.8 GPIO_Write
Function Name
void GPIO_Write ( GPIO_TypeDef * GPIOx, uint16_t PortVal)
Function Description
Writes data to the specified GPIO data port.
Parameters
 GPIOx : where x can be (A, B, C, D, E or F) to select the
GPIO peripheral.
 PortVal : specifies the value to be written to the port output
data register.
Return values
 None.
Notes
 None.
12.2.7 GPIO Alternate functions configuration functions
12.2.7.1 GPIO_PinAFConfig
Function Name
void GPIO_PinAFConfig ( GPIO_TypeDef * GPIOx, uint16_t
GPIO_PinSource, uint8_t GPIO_AF)

ST STM32F31xx Specifications

General

Brand	ST
Model	STM32F31xx
Category	Microcontrollers
Language	English