first commit

Core/Src/gpio.c

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+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    gpio.c
+  * @brief   This file provides code for the configuration
+  *          of all used GPIO pins.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2024 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "gpio.h"
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/*----------------------------------------------------------------------------*/
+/* Configure GPIO                                                             */
+/*----------------------------------------------------------------------------*/
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+
+/** Configure pins
+     PH0-OSC_IN (PH0)   ------> RCC_OSC_IN
+     PH1-OSC_OUT (PH1)   ------> RCC_OSC_OUT
+*/
+void MX_GPIO_Init(void)
+{
+
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+
+  /* GPIO Ports Clock Enable */
+  __HAL_RCC_GPIOH_CLK_ENABLE();
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+
+  /*Configure GPIO pins : PA2 PA4 */
+  GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_4;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  /* EXTI interrupt init*/
+  HAL_NVIC_SetPriority(EXTI2_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(EXTI2_IRQn);
+
+  HAL_NVIC_SetPriority(EXTI4_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(EXTI4_IRQn);
+
+}
+
+/* USER CODE BEGIN 2 */
+
+/* USER CODE END 2 */