简单点亮LED都hard fault了

慧心的眼眸

单片机型号是STM32F070RBT6，自己做了一块板子，做一些AD检测、数据存储、USB、UART通信等功能。 由于对单片机研究不是很多，使用cubemx生成初始程序，但是测试发现很严重的hard fault。 于是就把所有的东西都关掉了，只保留PB12翻转PIO，看LED的点亮、熄灭。发现还是会hard fault。hard fault的原因无非就是数组越界，堆栈溢出等，这些我都没有涉及到，除了系统的中断外也没有开启什么中断，实在想不通为什么会出错。 下面是代码和电路图，所有的元件都是mouser买的，应该不会有假货。麻烦大家帮我看看是哪里犯了什么低级错误。 /**   ******************************************************************************   * File Name          : main.c   * Description        : Main program body   ******************************************************************************   ** This notice applies to any and all portions of this file   * that are not between comment pairs USER CODE BEGIN and   * USER CODE END. Other portions of this file, whether   * inserted by the user or by software development tools   * are owned by their respective copyright owners.   *   * COPYRIGHT(c) 2018 STMicroelectronics   *   * Redistribution and use in source and binary forms, with or without modification,   * are permitted provided that the following conditions are met:   *   1. Redistributions of source code must retain the above copyright notice,   *      this list of conditions and the following disclaimer.   *   2. Redistributions in binary form must reproduce the above copyright notice,   *      this list of conditions and the following disclaimer in the documentation   *      and/or other materials provided with the distribution.   *   3. Neither the name of STMicroelectronics nor the names of its contributors   *      may be used to endorse or promote products derived from this software   *      without specific prior written permission.   *   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.   *   ******************************************************************************   */ /* Includes ------------------------------------------------------------------*/ #include "main.h" #include "stm32f0xx_hal.h" /* USER CODE BEGIN Includes */ /* USER CODE END Includes */ /* Private variables ---------------------------------------------------------*/ /* USER CODE BEGIN PV */ /* Private variables ---------------------------------------------------------*/ /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); static void MX_GPIO_Init(void); /* USER CODE BEGIN PFP */ /* Private function prototypes -----------------------------------------------*/ /* USER CODE END PFP */ /* USER CODE BEGIN 0 */ /* USER CODE END 0 */ int main(void) {   /* USER CODE BEGIN 1 */   /* USER CODE END 1 */   /* MCU Configuration----------------------------------------------------------*/   /* Reset of all peripherals, Initializes the Flash interface and the Systick. */   HAL_Init();   /* USER CODE BEGIN Init */   /* USER CODE END Init */   /* Configure the system clock */   SystemClock_Config();   /* USER CODE BEGIN SysInit */   /* USER CODE END SysInit */   /* Initialize all configured peripherals */   MX_GPIO_Init();   /* USER CODE BEGIN 2 */   /* USER CODE END 2 */   /* Infinite loop */   /* USER CODE BEGIN WHILE */   while (1)   {   /* USER CODE END WHILE */   /* USER CODE BEGIN 3 */     HAL_Delay(200);     HAL_GPIO_WritePin(GPIOB, GPIO_PIN_12, GPIO_PIN_RESET);     HAL_Delay(200);     HAL_GPIO_WritePin(GPIOB, GPIO_PIN_12, GPIO_PIN_SET);   /* USER CODE BEGIN 3 */   }   /* USER CODE END 3 */ } /** System Clock Configuration */ void SystemClock_Config(void) {   RCC_OscInitTypeDef RCC_OscInitStruct;   RCC_ClkInitTypeDef RCC_ClkInitStruct;     /**Initializes the CPU, AHB and APB busses clocks     */   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;   RCC_OscInitStruct.HSEState = RCC_HSE_ON;   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;   RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL6;   RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV1;   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)   {     _Error_Handler(__FILE__, __LINE__);   }     /**Initializes the CPU, AHB and APB busses clocks     */   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK                               |RCC_CLOCKTYPE_PCLK1;   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV2;   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;   if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)   {     _Error_Handler(__FILE__, __LINE__);   }     /**Configure the Systick interrupt time     */   HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);     /**Configure the Systick     */   HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);   /* SysTick_IRQn interrupt configuration */   HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0); } /** Configure pins as         * Analog         * Input         * Output         * EVENT_OUT         * EXTI */ static void MX_GPIO_Init(void) {   GPIO_InitTypeDef GPIO_InitStruct;   /* GPIO Ports Clock Enable */   __HAL_RCC_GPIOF_CLK_ENABLE();   __HAL_RCC_GPIOB_CLK_ENABLE();   /*Configure GPIO pin Output Level */   HAL_GPIO_WritePin(GPIOB, GPIO_PIN_12, GPIO_PIN_RESET);   /*Configure GPIO pin : PB12 */   GPIO_InitStruct.Pin = GPIO_PIN_12;   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;   GPIO_InitStruct.Pull = GPIO_NOPULL;   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); } /* USER CODE BEGIN 4 */ /* USER CODE END 4 */ /**   * @brief  This function is executed in case of error occurrence.   * @param  None   * @retval None   */ void _Error_Handler(char * file, int line) {   /* USER CODE BEGIN Error_Handler_Debug */   /* User can add his own implementation to report the HAL error return state */   while(1)   {   }   /* USER CODE END Error_Handler_Debug */ } #ifdef USE_FULL_ASSERT /**    * @brief Reports the name of the source file and the source line number    * where the assert_param error has occurred.    * @param file: pointer to the source file name    * @param line: assert_param error line source number    * @retval None    */ void assert_failed(uint8_t* file, uint32_t line) {   /* USER CODE BEGIN 6 */   /* User can add his own implementation to report the file name and line number,     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */   /* USER CODE END 6 */ } #endif /**   * @}   */ /**   * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ [color=rgb(51, 102, 153) !important]复制代码 电路只用了LDO，没有用DCDC

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