T_ADCCLK=RCC_Clock_t.ADCCLK_Frequency; //测试各时钟频率 } 在KEIL中查看T_SYSCLK,T_HCLK...
uint32_t SYSCLK_Frequency; /*!< returns SYSCLK clock frequency expressed in Hz */ uint32_t HCLK_Frequency; /*!< returns HCLK clock frequency expressed in Hz */ uint32_t PCLK1_Frequency; /*!< returns PCLK1 clock frequency expressed in Hz */ uint32_t PCLK2_Frequency; /*!< returns...
uint32_t SYSCLK_Frequency; /*!< returns SYSCLK clock frequency expressed in Hz */ uint32_t HCLK_Frequency; /*!< returns HCLK clock frequency expressed in Hz */ uint32_t PCLK1_Frequency; /*!< returns PCLK1 clock frequency expressed in Hz */ uint32_t PCLK2_Frequency; /*!< returns...
uint32_t SYSCLK_Frequency; /*!< returns SYSCLK clock frequency expressed in Hz */ uint32_t HCLK_Frequency; /*!< returns HCLK clock frequency expressed in Hz */ uint32_t PCLK1_Frequency; /*!< returns PCLK1 clock frequency expressed in Hz */ uint32_t PCLK2_Frequency; /*!< returns...
void RCC_RTCCLKCmd(FunctionalState NewState);// 使能或者失能RTC时钟 //输入:ENABLE或者DISABLE void RCC_GetClocksFreq(RCC_ClocksTypeDef* RCC_Clocks);// 返回时钟的频率 //输入:指向结构RCC_ClocksTypeDef的指针,包含了各个时钟的频率(单位为Hz) void RCC_AHBPeriphClockCmd(uint32_t RCC_AHBPeriph, Functional...
}#ifDEBUGRCC_GetClocksFreq(&RCC_Clocks); USART1_SendStr("System Clock: "); USART1_SendNum(RCC_Clocks.SYSCLK_Frequency); USART1_SendStr("\r\n"); USART1_SendStr("Device ID: "); USART1_SendByte(__flash_data.id, HEX); USART1_SendStr("\r\n"); ...
设置系统时钟: RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); 判断PLL 是否是系统时钟: while(RCC_GetSYSCLKSource() != 0x08); 1、使用库函数进行时钟系统初始化配置 void RCC_config()//如果外部晶振为8M,PLLCLK=SYSCLK=72M,HCLK=72M,//P2CLK=72M,P1CLK=36M,ADCCLK=36M,USBCLK=48M,TIMCLK=72M ...
>SYSCLK_Frequency =HSI_Value;break; case0乘以04:/*HSEusedassystemclock*/RCC_Clocks- >SYSCLK_Frequency=HSE_Value;break; case0乘以08:/*PLLusedassystemclock*//*GetPLLclocksourceand multiplicationfactor-*/pllmull= RCC->CFGR& CFGR_PLLMull_Mask;pllmull= ( pllmull >>18) + 2; pllsource =RCC...
一、综述:1、STM32 (Cortex-M3)中的优先级概念 STM32(Cortex-M3)中有两个优先级的概念:抢占式...
系统时钟SYSCLK经过AHB预分频器分频之后得到时钟叫AHB总线时钟,即HCLK,分频因子可以是:[1,2,4,8,16,64,128,256,512],具体的由时钟配置寄存器RCC_CFGR的HPRE位设置。片上大部分外设的时钟都是经过HCLK分频得到,至于AHB总线上的外设的时钟设置为多少,得等到我们使用该外设的时候才设置,我们这里只需粗线条的设置好...