GPIO Alternate functions configuration functions

GPIO Alternate functions configuration functions. More...

Functions
void	GPIO_PinAFConfig (GPIO_TypeDef *GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF)
	Writes data to the specified GPIO data port. More...

Detailed Description

GPIO Alternate functions configuration functions.

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          ##### GPIO Alternate functions configuration functions #####
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Function Documentation

void GPIO_PinAFConfig	(	GPIO_TypeDef *	GPIOx,
		uint16_t	GPIO_PinSource,
		uint8_t	GPIO_AF
	)

Writes data to the specified GPIO data port.

Parameters

GPIOx,:	where x can be (A or B) to select the GPIO peripheral.
GPIO_PinSource,:	specifies the pin for the Alternate function. This parameter can be GPIO_PinSourcex where x can be (0..15).
GPIO_AF,:	selects the pin to used as Alternate function. This parameter can be one of the following value: GPIO_AF_0: WKUP, EVENTOUT, TIM15, SPI1, TIM17,MCO, SWDAT, SWCLK, TIM14, BOOT,USART1, CEC, IR_OUT, SPI2 GPIO_AF_1: USART2, CEC, Tim3, USART1, USART2,EVENTOUT, I2C1, I2C2, TIM15 GPIO_AF_2: TIM2, TIM1, EVENTOUT, TIM16, TIM17 GPIO_AF_3: TS, I2C1, TIM15, EVENTOUT GPIO_AF_4: TIM14 GPIO_AF_5: TIM16, TIM17 GPIO_AF_6: EVENTOUT GPIO_AF_7: COMP1 OUT, COMP2 OUT

Note

The pin should already been configured in Alternate Function mode(AF) using GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF

Refer to the Alternate function mapping table in the device datasheet for the detailed mapping of the system and peripherals'alternate function I/O pins.

Return values

None