gpio.c File Reference

#include "gpio.h"

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Functions
void	GPIO_SetPinMode (GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t Mode)
void	GPIO_SetPinAltFun (GPIO_TypeDef *GPIOx, uint32_t Pin, uint32_t AltFun)

Function Documentation

GPIO_SetPinAltFun()

void GPIO_SetPinAltFun	(	GPIO_TypeDef *	GPIOx,
		uint32_t	Pin,
		uint32_t	AltFun
	)

Set the alternate function of the pin. There are 2 registers to be addressed. It depends on the pin location and it is valid for each GPIO port.

• Pins 00-07 are in ARFL
• Pins 08-16 are in ARFH

  Parameters

  [in]	GPIOx	GPIO Handler
  [in]	Pin	[e.g. pin 8 is 0b 0000 0000 0000 0000 0000 0001 0000 0000]
  [in]	AltFun	[e.g. Alternate Function 9 is 0b 0000 0000 0000 0000 0000 0010 0000 0000]

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GPIO_SetPinMode()

void GPIO_SetPinMode	(	GPIO_TypeDef *	GPIOx,
		uint32_t	Pin,
		uint32_t	Mode
	)

Set the mode of the pin. See GPIOx_MODER.

Parameters

[in]	GPIOx	GPIO Handler
[in]	Pin	[e.g. pin 8 is 0b 0000 0000 0000 0000 0000 0001 0000 0000]
[in]	Mode	[0 - Input, 1 - Output, 2 - Alternate, 3 - Analog]

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