RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); }/* Get the Clocks configuration according to the internal RCC registers */HAL_RCC_GetClockConfig(&RCC_ClkInitStruct, &pFLatency);/* Select PLL as system clock source ...
2. HAL_RCC_GetHCLKFreq()// 3. HAL_RCC_ClockConfig()uint32_tSystemCoreClock=16000000;// 初始值任意,在配置过程中会改变// 声明总线分频表常量(系统运行过程不可改变)constuint8_tAHBPrescTable[16U]={0,0,0,0,0,0,0,0,1,2,3,4,6,7,8,9};constuint8_tAPBPrescTable[8U]={0,0,0,0...
RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE; RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2; ret = HAL_RCC_OscConfig(&RCC_OscInitStruct); if(ret != HAL_OK) { Error_Handler(__FILE__, __LINE__); } 16.4.3 函数HAL_RCC_ClockConfig 函数原型: 函数描述: 通过上面函数原型,...
配置PLL:使用HAL_RCC_PLLConfig()或在较新版本的HAL库中直接在HAL_RCC_OscConfig()中配置PLL。这包括设置PLL的输入时钟源、倍频系数、以及可能的分频,以达到所需的系统时钟频率。 选择系统时钟源:通过HAL_RCC_ClockConfig()函数来选择PLL或其他可用时钟源(如HSE或HSI)作为系统时钟,并设置AHB、APB1、APB2总线的时...
(4)选择系统时钟源,配置总线分频器:通过 HAL_RCC_ClockConfig() 函数设置 (3)+(4)= sys_stm32_clock_init() 2、外设时钟使能和失能 3、编写系统时钟配置函数(sys_stm32_clock_init) 3.1、开启电源管理时钟 __HAL_RCC_PWR_CLK_ENABLE(); /* 使能PWR时钟 */ ...
void SystemClock_Config(void){ RCC_OscInitTypeDef RCC_OscInitStruct;RCC_ClkInitTypeDef RCC_ClkInit...
示例1: SystemClock_Config ▲点赞 7▼ /** System Clock Configuration */voidSystemClock_Config(void){ RCC_OscInitTypeDef RCC_OscInitStruct; RCC_ClkInitTypeDef RCC_ClkInitStruct; __PWR_CLK_ENABLE(); __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1); ...
void RCC_APB1PeriphResetCmd(uint32_t RCC_APB1Periph, FunctionalState NewState); void RCC_BackupResetCmd(FunctionalState NewState); void RCC_ClockSecuritySystemCmd(FunctionalState NewState); void RCC_MCOConfig(uint8_t RCC_MCO); FlagStatus RCC_GetFlagStatus(uint8_t RCC_FLAG); ...
void SystemClock_Config(void){ RCC_OscInitTypeDef RCC_OscInitStruct;RCC_ClkInitTypeDef RCC_ClkInit...
解析:HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000); 通过层层拆解,可以看到SYSTICK的配置是通过设置寄存器LOAD、VAL、CTRL和NVIC的SCB_SHP、NVIC_IP来实现的; /** * @brief Initializes the System Timer and its interrupt, and starts the System Tick Timer. ...