SDK_EVAL_Button.c

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/* Includes ------------------------------------------------------------------*/
#include "SDK_EVAL_Button.h"
#include "SDK_EVAL_Config.h"


void SdkEvalPushButtonInit(SdkEvalButton xButton, SdkEvalButtonMode xButtonMode)
{  
  BUTTON1_GPIO_CLK();
     
  GPIO_InitTypeDef GPIO_InitStructure;
  GPIO_InitTypeDef EXTI_InitStructure;
  
  /* Configures Button pin as input */
  GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
  GPIO_InitStructure.Pull = GPIO_NOPULL;
  GPIO_InitStructure.Pin = BUTTON1_PIN;
  HAL_GPIO_Init(BUTTON1_GPIO_PORT, &GPIO_InitStructure);
  
  if (xButtonMode == BUTTON_MODE_EXTI)
  {
    /* Configures Button EXTI line */
    EXTI_InitStructure.Mode = GPIO_MODE_IT_FALLING;
    EXTI_InitStructure.Pull = GPIO_NOPULL;
    EXTI_InitStructure.Pin = BUTTON1_PIN;
    HAL_GPIO_Init(BUTTON1_GPIO_PORT, &EXTI_InitStructure);
    
    HAL_NVIC_SetPriority(BUTTON1_EXTI_IRQn, BUTTON1_IRQ_PREEMPTION_PRIORITY, BUTTON1_IRQ_SUB_PRIORITY);
    HAL_NVIC_EnableIRQ(BUTTON1_EXTI_IRQn);
  }
}

FlagStatus SdkEvalPushButtonGetState(SdkEvalButton xButton)
{
  GPIO_PinState ret = HAL_GPIO_ReadPin(BUTTON1_GPIO_PORT, BUTTON1_PIN);
  return (FlagStatus)ret;    
}


/******************* (C) COPYRIGHT 2016 STMicroelectronics *****END OF FILE****/