LL_RCC_HSE_Enable();/* Wait till HSE is ready */while(LL_RCC_HSE_IsReady() !=1) { } LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE_DIV_1, LL_RCC_PLL_MUL_9); LL_RCC_PLL_Enable();/* Wait till PLL is ready */while(LL_RCC_PLL_IsReady() !=1) { } LL_RCC_SetAHBPresc...
HAL_StatusTypeDef HAL_RCC_OscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct); HAL_StatusTypeDef HAL_RCC_ClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t FLatency); void HAL_RCC_MCOConfig(uint32_t RCC_MCOx, uint32_t RCC_MCOSource, uint32_t RCC_MCODiv); void HAL_RCC_EnableCSS(...
1.包含头文件在程序中包含LL库相关的头文件。 #include "stm32f4xx_ll_gpio.h" #include "stm32f4xx_ll_rcc.h" 2. 初始化时钟配置系统时钟和外设时钟。 LL_Init1msTick(SystemCoreClock); LL_SYSTICK_EnableIT(); 3.配置外设直接写入寄存器进行配置。例如,配置GPIO引脚: // 配置GPIO引脚 LL_AHB1_GRP1_...
RCC_AHBPeriphClockCmd( RCC_AHBPeriph_GPIOC | RCC_AHBPeriph_GPIOD , ENABLE); RCC_APB1Perip...stm32 HAL库UART配置的疑惑 芯片F030: void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle) { GPIO_InitTypeDef GPIO_InitStruct; if(uartHandle->Instance==USART1) { /* USER CODE BEGIN USART1_...
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sequence: void SystemClock_Config(void) { RCC_ClkInitTypeDef RCC_ClkStruct; RCC_OscInitTypeDef RCC_OscInitStruct; /* Enable HSE Oscillator and activate PLL with HSE as source */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInit...
//开启HSE时钟,用HSE的时钟作为PLL的时钟源LL_RCC_HSE_Enable();// 等待外部时钟稳定while(LL_RCC_HSE_IsReady()!=1);// 设置并开启PLL时钟LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE_DIV_1,LL_RCC_PLL_MUL_9);LL_RCC_PLL_Enable();// 等待 PLL稳定while(LL_RCC_PLL_IsReady()!=1);/...
RCC_HSEConfig(RCC_HSE_ON); //开启HSE时钟,咱是用HSE的时钟作为PLL的时钟源 HSEStartUpStatus = RCC_WaitForHSEStartUp(); //获取HSE启动状态 if(HSEStartUpStatus == SUCCESS) //如果HSE启动成功 { FLASH_PrefetchBufferCmd(ENABLE); //开启FLASH的预取功能 ...
第一步: 配置 RCC 寄存器 和 SysTick 寄存器 RCC_Configuration: 配置 RCC 寄存器 void RCC_Configuration(void) { /* RCC system reset(for debug purpose) */ RCC_DeInit(); /* Enable HSE */ RCC_HSEConfig(RCC_HSE_ON); /* Wait till HSE is ready */ ...
第一步: 配置 RCC 寄存器 和 SysTick 寄存器 RCC_Configuration: 配置 RCC 寄存器 void RCC_Configuration(void) { /* RCC system reset(for debug purpose) */ RCC_DeInit(); /* Enable HSE */ RCC_HSEConfig(RCC_HSE_ON); /* Wait till HSE is ready */ ...