rocketpi_led
功能展示

1.进入mcu选择器界面
- 打开STM32cubeMX,点击ACCESS TO MCU SELECTOR

2.选择芯片型号
- 步骤1:在Commercial Part Number 输入 F401RE
- 步骤2:选择STM32F401RET6 (其他芯片可自行选择)
- 步骤3:点击Start Project

3.晶体振荡器选择
- 步骤1:点击System Core
- 步骤2:点击RCC
- 步骤3:High Speed Clock(HSE) 选择 Crystal/Ceramic Resonator

4.时钟配置
- 步骤1:点击Clock Configuration
- 步骤2:input frequency输入8 (因为 rocketpi 硬件设计使用外部晶振为8Mhz,所以此处输入8)
- 步骤3:选择HSE
- 步骤4:在HCLK的输入框中输入84,接着回车,回车之后可能会弹出一个确认框,点击OK,会自动配置时钟,等待配置完毕

5.配置调试接口
- 步骤1:点击SYS
- 步骤2:Debug选择栏 选择Serial Wire

6.配置LED的io为输出
在配置之前看原理图,我们需要看led的原理图,找到LED的原理图部分,从原理可以获得的信息
- 三个LED连接的引脚分别为 PA1,PB10,PB14
- 三个LED都是低电平点亮

图形化配置
- 步骤1:搜索框中输入PA1,回车,这时候PA1的引脚会闪烁
- 步骤2:点击闪烁的PA1
- 步骤3:将PA1设置为GPIO_Output

接下来另外两个led的io PB10,PB14 操作也和上述一样

点击GPIO,可以看到我们的配置的三个LED出现在这里了

6.配置LE的电气属性
由于三个LED都是低电平点亮,一般 初始化的过程,我们会配置关闭LED,
- 分别点击 PA1,PB10,PB14,将GPIO output level 属性设置为high,配置后烧录程序默认会关闭led
- 默认的GPIO mode 是推挽输出,所以此处我们不需要更改,至此led的配置已经完成了

7.生成代码
- 步骤1:点击Project Manager
- 步骤2:填写此次要创建的工程名字,(注意这里一定不要使用中文名)
- 步骤3:这个工程保存的路径(注意这里一定不要有中文路径,否则生成的工程会有问题)
- 步骤4:生成的工程选择 MDK-ARM 版本为v5.27(版本可以根据自己安装keil版本选择,一般来说高版本的keil可以向下兼容)

- 点击Code Generator
- 软件包选择 copy only the necessary files (仅复制使用到的库文件)
- 生成的文件选择 Generate peripheral initialization as a pair .c/.h files perpheral

最后,点击GENERATE CODE 即可生成代码

8.打开keil工程
- 点击OPen Project即可打开刚创建好的工程(电脑已经安装了keil的前提下)

9.编译

确保编译日志 0错误,0警告(这一步出问题了就是工程名字或者工程路径存在中文)

10.编写led的闪烁代码
- 找到main.c文件,在while中加入这段代码,一个三个led等闪烁的代码就做好了
代码释意
- 可以看做三段代码,第一段保持第一个led打开,其他两个led关闭,延时500ms
- 第二段保持第二个led打开,其他两个led关闭,延时500ms
- 第三段保持第三个led打开,其他两个led关闭,延时500ms
- 这三段放在循环中,就可以看到led不断地闪烁了
| HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10, GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_14, GPIO_PIN_SET);
HAL_Delay(500);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_14, GPIO_PIN_SET);
HAL_Delay(500);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10, GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_14, GPIO_PIN_RESET);
HAL_Delay(500);
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11.下载验证结果
驱动以及测试代码
Core/Src/main.c
| /* 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"
#include "gpio.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);
/* 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)
{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10, GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_14, GPIO_PIN_SET);
HAL_Delay(500);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_14, GPIO_PIN_SET);
HAL_Delay(500);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10, GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_14, GPIO_PIN_RESET);
HAL_Delay(500);
/* 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};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2);
/** 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.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 84;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 4;
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();
}
}
/* 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 */
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