SYSCLK通过AHB Prescaler(1分频)得到HCLK时钟,通过APB1 Prescaler(2分频)得到PCLK1时钟,通过APB2 Prescaler(1分频)得到PCLK2时钟。 其实与SystemClock_Config()函数中的配置是一模一样的: /** * @brief System Clock Configuration * @retval None */voidSystemClock_Config(void){ RCC_OscInitTypeDef RCC_OscInit...
这里,我们将配置一个和我们之前讲解的SystemClock_Config 函数实现的一模一样的配置。 SystemClock_Config 函数主要实现的是以HSE 为时钟源,配置主 PLL 相关参数,然后系统时钟选择PLL 为时钟源,最终配置系统时钟为 80MHz的过程。同时,还配置了SYSTICK,AHB,APB1和APB2的相关分频系数。 第一部分是配置系统时钟。 第二...
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 */ long lo...
/* 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) ...
externvoidSystemClock_Config(void); /*main.c主函数内初始化程序*/ printf("\r\nReset\r\n"); HAL_TIM_Base_Start_IT(&htim6); /*main.c主循环内控制程序*/ while(1) { /*从待机模式唤醒后手动清除唤醒标志,否则下次进入待机模式将直接唤醒*/ ...
SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_SDIO_SD_Init(); MX_USART1_UART_Init(); MX_FATFS_Init(); /* USER CODE BEGIN 2 */ SD_Driver.disk_initialize(0); printf_sdcard_info(...
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...
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) ...
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 */...
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 */ ...