/**
  ******************************************************************************
  * File Name          : gpio.c
  * Description        : This file provides code for the configuration
  *                      of all used GPIO pins.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "gpio.h"
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/* USER CODE END 0 */

/*----------------------------------------------------------------------------*/
/* Configure GPIO                                                             */
/*----------------------------------------------------------------------------*/
/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

/** Configure pins as 
        * Analog 
        * Input 
        * Output
        * EVENT_OUT
        * EXTI
*/
void MX_GPIO_Init(void)
{

  LL_EXTI_InitTypeDef EXTI_InitStruct = {0};

  /* GPIO Ports Clock Enable */
  LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
  LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOB);

  /**/
  LL_GPIO_AF_SetEXTISource(LL_GPIO_AF_EXTI_PORTA, LL_GPIO_AF_EXTI_LINE4);

  /**/
  EXTI_InitStruct.Line_0_31 = LL_EXTI_LINE_4;
  EXTI_InitStruct.LineCommand = ENABLE;
  EXTI_InitStruct.Mode = LL_EXTI_MODE_IT;
  EXTI_InitStruct.Trigger = LL_EXTI_TRIGGER_RISING_FALLING;
  LL_EXTI_Init(&EXTI_InitStruct);

  /**/
   // LL_GPIO_SetPinPull(Reed_Switch_GPIO_Port, Reed_Switch_Pin, LL_GPIO_PULL_UP);	//ÉèÖÃpinÉÏÀ­
  LL_GPIO_SetPinPull(Reed_Switch_GPIO_Port, Reed_Switch_Pin, LL_GPIO_PULL_UP);

 //   LL_GPIO_IsInputPinSet(Reed_Switch_GPIO_Port, Reed_Switch_Pin);			//LL_GPIO_IsInputPinSet--¶ÁÈ¡pin״̬

  /**/
  LL_GPIO_SetPinMode(Reed_Switch_GPIO_Port, Reed_Switch_Pin, LL_GPIO_MODE_INPUT);

//	LL_GPIO_SetPinMode(Reed_Switch_GPIO_Port, Reed_Switch_Pin, LL_GPIO_MODE_OUTPUT);

  /* EXTI interrupt init*/
  NVIC_SetPriority(EXTI4_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
  NVIC_EnableIRQ(EXTI4_IRQn);

}

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