/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * Copyright (c) 2025 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 "main.h" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ /* USER CODE END Includes */ /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN PTD */ /* USER CODE END PTD */ /* Private define ------------------------------------------------------------*/ /* USER CODE BEGIN PD */ /* USER CODE END PD */ /* Private macro -------------------------------------------------------------*/ /* USER CODE BEGIN PM */ /* USER CODE END PM */ /* Private variables ---------------------------------------------------------*/ /* USER CODE BEGIN PV */ /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); static void MX_GPIO_Init(void); /* USER CODE BEGIN PFP */ /* USER CODE END PFP */ /* Private user code ---------------------------------------------------------*/ /* USER CODE BEGIN 0 */ /* USER CODE END 0 */ /** * @brief The application entry point. * @retval int */ 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) { #include "main.h" // ?????? void Delay_ms(uint32_t ms) { HAL_Delay(ms); } // ??????? void RunningLight(void) { for (int i = 0; i < 16; i++) { HAL_GPIO_WritePin(GPIOE, GPIO_PIN_0 << i, GPIO_PIN_SET); // ????LED Delay_ms(100); // ?? HAL_GPIO_WritePin(GPIOE, GPIO_PIN_0 << i, GPIO_PIN_RESET); // ????LED } } int main(void) { HAL_Init(); // ???HAL? SystemClock_Config(); // ?????? MX_GPIO_Init(); // ???GPIO while (1) { RunningLight(); // ????????? } } /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */ } /** * @brief System Clock Configuration * @retval None */ void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; /** Initializes the RCC Oscillators according to the specified parameters * in the RCC_OscInitTypeDef structure. */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1; RCC_OscInitStruct.HSIState = RCC_HSI_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } /** Initializes the CPU, AHB and APB buses clocks */ RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) { Error_Handler(); } } /** * @brief GPIO Initialization Function * @param None * @retval None */ static void MX_GPIO_Init(void) { GPIO_InitTypeDef GPIO_InitStruct = {0}; /* USER CODE BEGIN MX_GPIO_Init_1 */ /* USER CODE END MX_GPIO_Init_1 */ /* GPIO Ports Clock Enable */ __HAL_RCC_GPIOE_CLK_ENABLE(); /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(GPIOE, GPIO_PIN_0, GPIO_PIN_RESET); /*Configure GPIO pin : PE0 */ GPIO_InitStruct.Pin = GPIO_PIN_0; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOE, &GPIO_InitStruct); /* USER CODE BEGIN MX_GPIO_Init_2 */ /* USER CODE END MX_GPIO_Init_2 */ } /* USER CODE BEGIN 4 */ /* USER CODE END 4 */ /** * @brief This function is executed in case of error occurrence. * @retval None */ void Error_Handler(void) { /* USER CODE BEGIN Error_Handler_Debug */ /* User can add his own implementation to report the HAL error return state */ __disable_irq(); 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 /* USE_FULL_ASSERT */ 修改
时间: 2025-06-22 13:54:26 浏览: 9
### STM32F103VET6使用STM32CubeMX配置GPIO实现PE口流水灯控制
以下是一个完整的实现方案,基于STM32F103VET6芯片和STM32CubeMX环境,配置PE端口以驱动16个LED的流水灯效果。
#### 配置STM32CubeMX项目
- 在STM32CubeMX中创建一个新工程,并选择目标芯片为STM32F103VET6。
- 在Pinout视图中,将PE0至PE15配置为GPIO_Output模式[^1]。
- 确保时钟树配置正确,以便系统能够正常运行。
- 使用“Project”菜单下的“Generate Code”生成初始化代码。
#### 修改生成的代码
在生成的代码基础上,添加流水灯控制逻辑。以下是完整的实现代码:
```c
#include "main.h"
// 定义延时函数
void Delay_ms(uint32_t ms) {
HAL_Delay(ms);
}
// 流水灯控制函数
void RunningLight(void) {
for (int i = 0; i < 16; i++) {
uint16_t pin = GPIO_PIN_0 << i; // 计算当前引脚
HAL_GPIO_WritePin(GPIOE, pin, GPIO_PIN_SET); // 点亮当前LED
Delay_ms(100); // 延时
HAL_GPIO_WritePin(GPIOE, pin, GPIO_PIN_RESET); // 熄灭当前LED
}
}
int main(void) {
HAL_Init(); // 初始化HAL库
SystemClock_Config(); // 配置系统时钟
MX_GPIO_Init(); // 初始化GPIO
while (1) {
RunningLight(); // 调用流水灯控制函数
}
}
```
#### 代码解析
- **延时函数**:`Delay_ms`使用HAL库中的`HAL_Delay`函数实现毫秒级延时[^2]。
- **流水灯控制**:通过循环依次点亮PE0至PE15对应的LED,并在点亮后延时再熄灭。
- **GPIO操作**:`HAL_GPIO_WritePin`函数用于设置或清除指定引脚的状态[^3]。
#### 注意事项
- 确保PE0至PE15均已正确配置为输出模式。
- 如果出现编译错误,检查是否遗漏了必要的头文件或初始化函数。
- 如果硬件连接有问题,可能导致LED无法正常工作,需检查电路连接。
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