push button

[hussien kazan]

Posted on July 14, 2018 at 19:53

hello;

    I want to define the pinAO as a push button on keil v5 without using cubemx, i need its define and configuration function, can some one help? 

[Tesla DeLorean]

Posted on July 14, 2018 at 20:37

{

  GPIO_InitTypeDef GPIO_InitStructure;

  /* Enable GPIOA clock */

  __HAL_RCC_GPIOA_CLK_ENABLE();

  /* Configure PA0 pin as input pulled up (pressed button connects to ground) */

  GPIO_InitStructure.Mode = GPIO_MODE_INPUT;

  GPIO_InitStructure.Pull = GPIO_PULLUP;

  GPIO_InitStructure.Pin = GPIO_PIN_0;

  HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);

//...

  if (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0) == 0)

    puts('Button Depressed');

}

[hussien kazan]

Posted on July 14, 2018 at 21:03

 ,

 ,

This is the code that i wrote can u point it it compiling successfully, but its not working can u point out the errors , ?

♯ include 'stm32f4xx_hal.h'

 ,

void GPIO_CONFIGER(void),

 ,

void PUSHBUTTON(void),

 ,

int main(void){

 ,

HAL_Init(),

 ,

GPIO_CONFIGER(),

 ,

PUSHBUTTON(),

 ,

while(1){

 ,

GPIO_PinState MY_PUSHBUTTON,

 ,

 ,

MY_PUSHBUTTON=HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_0),

if(MY_PUSHBUTTON){

 ,

HAL_GPIO_WritePin(GPIOD,GPIO_PIN_12,MY_PUSHBUTTON),

 ,

HAL_Delay(1000),

 ,

HAL_GPIO_WritePin(GPIOD,GPIO_PIN_13,MY_PUSHBUTTON),

 ,

HAL_Delay(1000),

 ,

HAL_GPIO_WritePin(GPIOD,GPIO_PIN_14,MY_PUSHBUTTON),

 ,

HAL_Delay(1000),

 ,

HAL_GPIO_WritePin(GPIOD,GPIO_PIN_15,MY_PUSHBUTTON),

 ,

HAL_Delay(1000),

 ,

 ,

}

 ,

}

 ,

 ,

}

void GPIO_CONFIGER(void){

 ,

__HAL_RCC_GPIOD_CLK_ENABLE(),

 ,

 ,

GPIO_InitTypeDef GPIOPIN,

 ,

GPIOPIN.Mode= GPIO_MODE_OUTPUT_PP ,

 ,

GPIOPIN.Pin= GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15 ,

 ,

HAL_GPIO_Init(GPIOD, &,GPIOPIN),

}

 ,

void PUSHBUTTON(void){

 ,

__HAL_RCC_GPIOA_CLK_ENABLE(),

 ,

GPIO_InitTypeDef MYPUSHBUTTON,

 ,

MYPUSHBUTTON.Pin=GPIO_PIN_0,

 ,

MYPUSHBUTTON.Mode=GPIO_MODE_INPUT,

 ,

MYPUSHBUTTON.Pull=GPIO_PULLUP,

 ,

HAL_GPIO_Init(GPIOA,&,MYPUSHBUTTON),

 ,

if(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0)==0){

 ,

puts('Button Depressed'),

 ,

}

 ,

}

void SYSTICK_CONGIR(){

 ,

HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000),

 ,

HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK),

 ,

HAL_NVIC_SetPriority(SysTick_IRQn,0,0 ),

 ,

HAL_NVIC_EnableIRQ(SysTick_IRQn),

}

void systick_handler(){

 ,

HAL_IncTick(),

}