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.

 ===============================================================================
          ##### GPIO Alternate functions configuration functions #####
 ===============================================================================  

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, B, C, D, E or F) 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 be used as Alternate function. This parameter can be one of the following value: GPIO_AF_0: MCO, JTMS-SWDAT, JTCK-SWCLK, JTDI,JTDO, JTRST, TRACECLK, TRACED, TRACEWO. GPIO_AF_1: TIM2, TIM15, TIM16, TIM17, OUT. GPIO_AF_2: TIM3, TIM4, TIM5, TIM13, TIM14, TIM19. GPIO_AF_3: Touch Sence. GPIO_AF_4: I2C1, I2C2. GPIO_AF_5: SPI1, SPI2, IR_OUT. GPIO_AF_6: SPI1, SPI3, CEC, IR_OUT. GPIO_AF_7: USART1, USART2, USART3, CAN, CEC. GPIO_AF_8: COMP1_OUT, COMP2_OUT. GPIO_AF_9: CAN, TIM12, TIM13, TIM14, TIM15. GPIO_AF_10: TIM2, TIM3, TIM4, TIM12, TIM17. GPIO_AF_11: TIM19. GPIO_AF_14: USBDM, USBDP. GPIO_AF_15: 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