STM32 F4 Hal libraries GPIO PIN alternate function

ismimusyafani · ‎2015-09-20

Posted on September 21, 2015 at 03:57

how to configure GPIO PIN alternate function in hal driver ?

in std_periph driver i usually used this code:

GPIO_PinAFConfig(GPIOB, GPIO_PinSource14, GPIO_AF_TIM12); //TIM2_CH1

GPIO_PinAFConfig(GPIOB, GPIO_PinSource15, GPIO_AF_TIM12); //TIM2_CH2

how to configure in Hal driver, can you help me about this code :

// GPIO TypeDef Initialization

GPIO_TypeDef GPIO_TypeDefStruct;

/* // No se para que mierda es esto si uso PWM

GPIO_TypeDefStruct.MODER |= ((31<<1)|(29<<1)|(27<<1)|(25<<1));

GPIO_TypeDefStruct.OSPEEDR |= (GPIO_OSPEEDER_OSPEEDR15_1 | GPIO_OSPEEDER_OSPEEDR_14_1

GPIO_OSPEEDER_OSPEEDR13_1 | GPIO_OSPEEDER_OSPEEDR_12_1);

*/

GPIO_TypeDefStruct.AFR[1] |=(28<<GPIO_AF2_TIM4|24<<GPIO_AF2_TIM4|20<<GPIO_AF2_TIM4|16<<GPIO_AF2_TIM4);

GPIO_TypeDef* GPIO_D = & GPIO_TypeDefStruct;

stm32forum · ‎2015-09-21

Posted on September 21, 2015 at 10:31

Hi,

For example:

Configuring USART3 Tx (PC10, mapped on AF7) as alternate function:

GPIO_InitStruct.Pin = GPIO_PIN_10;

GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;

GPIO_InitStruct.Pull = GPIO_PULLUP;

GPIO_InitStruct.Speed = GPIO_SPEED_FAST;

GPIO_InitStruct.Alternate = GPIO_AF7_USART3;

HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

ismimusyafani · ‎2015-09-28

Posted on September 29, 2015 at 01:29

thanx Edje, your information is very important for me. I also know it in stm32 cube example project, there are many configuration for all function of stm32. thanx edje hehehe