本文整理汇总了C++中RCC_WaitForHSEStartUp函数的典型用法代码示例。如果您正苦于以下问题：C++ RCC_WaitForHSEStartUp函数的具体用法？C++ RCC_WaitForHSEStartUp怎么用？C++ RCC_WaitForHSEStartUp使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了RCC_WaitForHSEStartUp函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: RCC_Configuration
void RCC_Configuration(void)
{
ErrorStatus HSEStartUpStatus;
/* RCC system reset(for debug purpose) */
RCC_DeInit();
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
while(HSEStartUpStatus != SUCCESS)
{
HSEStartUpStatus = RCC_WaitForHSEStartUp();
}
if (HSEStartUpStatus == SUCCESS)
{
/* Enable Prefetch Buffer */
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
/* Flash 2 wait state */
FLASH_SetLatency(FLASH_Latency_2);
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK/2 */
RCC_PCLK1Config(RCC_HCLK_Div2);
//RCC_ADCCLKConfig(RCC_PCLK2_Div4);
/* PLLCLK = 8MHz * 9 = 72 MHz */
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) {}
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while(RCC_GetSYSCLKSource() != 0x08) {}
}
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
}
开发者ID:rijn，项目名称:HardwareWorks，代码行数:56，代码来源:sys.c
示例2: TM_DELAY_Init
void TM_DELAY_Init(void) {
/* If already initialized */
if (TM_DELAY_Initialized) {
return;
}
/* Enable External HSE clock */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait for stable clock */
while (!RCC_WaitForHSEStartUp());
#if defined(TM_DELAY_TIM)
TM_DELAY_INT_InitTIM();
#else
/* Set Systick interrupt every 1ms */
if (SysTick_Config(SystemCoreClock / 1000)) {
/* Capture error */
while (1);
}
#ifdef __GNUC__
/* Set multiplier for delay under 1us with pooling mode = not so accurate */
mult = SystemCoreClock / 7000000;
#else
/* Set multiplier for delay under 1us with pooling mode = not so accurate */
mult = SystemCoreClock / 3000000;
#endif
#endif
/* Set initialized flag */
TM_DELAY_Initialized = 1;
}
开发者ID:slayerrensky，项目名称:arm-projekt，代码行数:33，代码来源:tm_stm32f4_delay.c
示例3: RestoreConfiguration
/**
* @brief Restore peripheral config before entering DEEPSLEEP mode.
* @param None
* @retval None
*/
static void RestoreConfiguration(void)
{
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* SYSCLK, HCLK, PCLK configuration */
/* Enable HSE */
RCC_HSEConfig( RCC_HSE_ON );
/* Wait till HSE is ready and if Time out is reached exit */
HSEStatus = RCC_WaitForHSEStartUp();
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK */
RCC_AHBConfig(RCC_SYSCLK_DIV1);
/* PCLK = HCLK */
RCC_APB1Config(RCC_APB1AHB_DIV1);
/* PLL configuration: = HSE * 6 = 48 MHz */
RCC_HSEPREDVConfig(RCC_HSEPREDV1_DIV1);
RCC_PLLConfig(RCC_PLLSOURCE_HSEPREDIV, RCC_GCFGR_PLLMF6);
/* Enable PLL */
RCC_PLL_Enable(ENABLE);
/* PLL as system clock source */
RCC_CK_SYSConfig(RCC_SYSCLKSOURCE_PLLCLK);
}
}
开发者ID:eeinz，项目名称:trochili，代码行数:35，代码来源:main.c
示例4: Leave_LowPowerMode
/*******************************************************************************
* Function Name : Leave_LowPowerMode.
* Description : Restores system clocks and power while exiting suspend mode.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void Leave_LowPowerMode(void)
{
DEVICE_INFO *pInfo = &Device_Info;
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
RCC_WaitForHSEStartUp();
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{}
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while (RCC_GetSYSCLKSource() != 0x08)
{}
/* Set the device state to the correct state */
if (pInfo->Current_Configuration != 0)
{
/* Device configured */
bDeviceState = CONFIGURED;
}
else
{
bDeviceState = ATTACHED;
}
}
开发者ID:JinhoAndyPark，项目名称:ARM，代码行数:42，代码来源:hw_config.c
示例5: RCC_Configuration
void RCC_Configuration(void)
{
RCC_DeInit(); // RCC system reset(for debug purpose)
RCC_HSEConfig(RCC_HSE_ON); // Enable HSE
HSEStartUpStatus = RCC_WaitForHSEStartUp(); // Wait till HSE is ready
if(HSEStartUpStatus == SUCCESS)
{
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //开启FLASH预读缓冲功能，加速FLASH的读取。所有程序中必须的用法.位置：RCC初始化子函数里面，时钟起振之后
FLASH_SetLatency(FLASH_Latency_2); //flash操作的延时
RCC_HCLKConfig(RCC_SYSCLK_Div1); //HCLK = SYSCLK
RCC_PCLK2Config(RCC_HCLK_Div1); // PCLK2 = HCLK
RCC_PCLK1Config(RCC_HCLK_Div2); // PCLK1 = HCLK/2
FLASH_SetLatency(FLASH_Latency_2); // Flash 2 wait state
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); // Enable Prefetch Buffer
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); // PLLCLK = 8MHz * 9 = 72 MHz
RCC_PLLCmd(ENABLE); // Enable PLL
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) // Wait till PLL is ready
{
}
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); // Select PLL as system clock source
while(RCC_GetSYSCLKSource() != 0x08) // Wait till PLL is used as system clock source
{
}
}
}
开发者ID:moranzcw，项目名称:QuadCopter，代码行数:31，代码来源:rcc_conf.c
示例6: Set_System
/*******************************************************************************
* System Clock Configuration
*******************************************************************************/
void Set_System(void)
{
RCC_DeInit();
RCC_HSEConfig(RCC_HSE_ON);
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
FLASH_SetLatency(FLASH_Latency_2); //Flash 2 wait state
RCC_HCLKConfig(RCC_SYSCLK_Div1); //HCLK = SYSCLK
RCC_PCLK2Config(RCC_HCLK_Div1); //PCLK2 = HCLK
RCC_PCLK1Config(RCC_HCLK_Div2); //PCLK1 = HCLK/2
RCC_ADCCLKConfig(RCC_PCLK2_Div4); //ADCCLK = PCLK2/4 = 18MHz
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); //PLLCLK = 72 MHz
RCC_PLLCmd(ENABLE);
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET){}
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
while(RCC_GetSYSCLKSource()!=0x08){}
}
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA, ENABLE);
RCC_APB2PeriphClockCmd(
RCC_APB2Periph_ADC1 | RCC_APB2Periph_ADC2 | RCC_APB2Periph_GPIOA |
RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD |
RCC_APB2Periph_GPIOE | RCC_APB2Periph_AFIO | RCC_APB2Periph_TIM1, ENABLE);
RCC_APB1PeriphClockCmd(
RCC_APB1Periph_TIM2 | RCC_APB1Periph_TIM3 | RCC_APB1Periph_TIM4 |
RCC_APB1Periph_SPI2, ENABLE);
RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_1Div5); //USBCLK = 48MHz
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE); //Enable USB clock
}
开发者ID:thinrope，项目名称:Nano_MCA，代码行数:37，代码来源:HW_V1_Config.c
示例7: RCC_Config_HSE_Default
void RCC_Config_HSE_Default(void){
RCC_DeInit();
/*configurar clock externo a 12Mhz */
//bypass pois está ligado no OSC_IN um circuito oscilatorio externo
RCC_HSEConfig(RCC_HSE_Bypass);
//Após a ativação do HSE deveremos esperar até que o sinal de relógio esteja pronto e estável
ErrorStatus HSEStartUpStatus;
HSEStartUpStatus=RCC_WaitForHSEStartUp();
if(HSEStartUpStatus==SUCCESS) /*retorna SUCCESS ou ERROR*/
{
//divisão do prescaler AHB por 1
RCC_HCLKConfig(RCC_SYSCLK_Div1);
//divisão do prescaler APB1 por 1
RCC_PCLK1Config(RCC_HCLK_Div1);
//divisão do prescaler APB2 por 1
RCC_PCLK2Config(RCC_HCLK_Div1);
//arrancar com o clock externo
RCC_SYSCLKConfig(RCC_SYSCLKSource_HSE);
//confirmar que o clock está correcto logo esperar que a fonte de relógio esteja correta
while(RCC_GetSYSCLKSource()!=0x04);
//clock configurado com sucesso
}
else
while(1); /*se deu erro o micro nao arranca*/
}
开发者ID:flv1991，项目名称:STM32_LAMEC_CAN，代码行数:30，代码来源:1100419_TIMER_main.c
示例8: RCC_Config
void RCC_Config(void)
//konfigurowanie sygnalow taktujacych
{
ErrorStatus HSEStartUpStatus; //zmienna opisujaca rezultat uruchomienia HSE
RCC_DeInit(); //Reset ustawien RCC
RCC_HSEConfig(RCC_HSE_ON); //Wlaczenie HSE
HSEStartUpStatus = RCC_WaitForHSEStartUp(); //Odczekaj az HSE bedzie gotowy
if(HSEStartUpStatus == SUCCESS)
{
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);//
FLASH_SetLatency(FLASH_Latency_2); //ustaw zwloke dla pamieci Flash; zaleznie od taktowania rdzenia
//0:<24MHz; 1:24~48MHz; 2:>48MHz
RCC_HCLKConfig(RCC_SYSCLK_Div1); //ustaw HCLK=SYSCLK
RCC_PCLK2Config(RCC_HCLK_Div1); //ustaw PCLK2=HCLK
RCC_PCLK1Config(RCC_HCLK_Div2); //ustaw PCLK1=HCLK/2
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); //ustaw PLLCLK = HSE*9 czyli 8MHz * 9 = 72 MHz
RCC_PLLCmd(ENABLE); //wlacz PLL
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET); //odczekaj na poprawne uruchomienie PLL
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //ustaw PLL jako zrodlo sygnalu zegarowego
while(RCC_GetSYSCLKSource() != 0x08); //odczekaj az PLL bedzie sygnalem zegarowym systemu
/*Tu nalezy umiescic kod zwiazany z konfiguracja sygnalow zegarowych potrzebnych w programie peryferiow*/
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);//wlacz taktowanie portu GPIO A
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);//wlacz taktowanie portu GPIO B
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);//wlacz taktowanie portu GPIO C
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE); //wlacz taktowanie SPI
//RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE); //wlacz taktowanie funkcji alternatywnych GPIO
} else {
}
}
开发者ID:develorn，项目名称:ARM_function_kamami，代码行数:32，代码来源:main.c
示例9: RestoreConfiguration
/**
* @brief Restore peripheral config before entering STOP mode.
* @param None
* @retval None
*/
static void RestoreConfiguration(void)
{
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* SYSCLK, HCLK, PCLK configuration ----------------------------------------*/
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready and if Time out is reached exit */
HSEStatus = RCC_WaitForHSEStartUp();
if (HSEStatus == (uint32_t)0x01)
{
/* Enable Prefetch Buffer */
FLASH_SetLatency(FLASH_Latency_1);
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK = HCLK */
RCC_PCLKConfig(RCC_HCLK_Div1);
/* PLL configuration: = HSE * 6 = 48 MHz */
RCC_PREDIV1Config(RCC_PREDIV1_Div1);
RCC_PLLConfig(RCC_PLLSource_PREDIV1, RCC_CFGR_PLLMULL6);
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
}
}
开发者ID:OomD，项目名称:STM32F0-Discovery，代码行数:38，代码来源:main.c
示例10: sysclockInit
uint8_t sysclockInit(void)
{
ErrorStatus HSEStartUpStatus;
RCC_DeInit();/* RCC重置 */
RCC_HSEConfig(RCC_HSE_ON); /*使能HSE*/
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS) //外部晶振使能成功
{
RCC_HCLKConfig(RCC_SYSCLK_Div1); /* 配置HCLK = SYSCLK */
RCC_PCLK2Config(RCC_HCLK_Div1); /* 配置PCLK2 = HCLK */
RCC_PCLK1Config(RCC_HCLK_Div2); /* 配置PCLK1 = HCLK/2 */
FLASH_SetLatency(FLASH_Latency_2);
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); /* RCC_PLLSource_HSE_Div1为外置晶振的分频系数;RCC_PLLMul_9为倍频数 */
RCC_PLLCmd(ENABLE);
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET); //等待pll工作
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); /* 选定PLL为系统主时钟 */
while(RCC_GetSYSCLKSource() != 0x08); //判断pll是否为系统时钟
return 1;
}
else
return 0;
}
开发者ID:ninfeion，项目名称:BBFLIGHT_FIRMWARE_3.0_KEIL，代码行数:27，代码来源:systeminit.c
示例11: RestoreConfiguration
/**
* @brief Restore peripheral config before entering STOP mode.
* @param None
* @retval None
*/
void RestoreConfiguration(void)
{
ErrorStatus HSEStartUpStatus;
/* Restore system clock to 32MHz */
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if (HSEStartUpStatus == SUCCESS)
{
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{}
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while (RCC_GetSYSCLKSource() != 0x0C)
{}
}
}
开发者ID:bitfriemeln，项目名称:STM32L1xx_StdPeriph_Lib，代码行数:31，代码来源:main.c
示例12: RCC_Configuration
/*
********************************************************************************
** 函数名称 ： RCC_Configuration(void)
** 函数功能 ： 时钟初始化
** 输 入 ： 无
** 输 出 ： 无
** 返 回 ： 无
********************************************************************************
*/
void RCC_Configuration(void)
{
RCC_DeInit();
RCC_HSEConfig(RCC_HSE_ON);
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
FLASH_SetLatency(FLASH_Latency_2);
RCC_HCLKConfig(RCC_SYSCLK_Div1);
RCC_PCLK2Config(RCC_HCLK_Div1);
RCC_PCLK1Config(RCC_HCLK_Div2);
RCC_PLLConfig(RCC_PLLSource_HSE_Div1,RCC_PLLMul_9);
RCC_PLLCmd(ENABLE);
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY)==RESET)
{
}
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
while(RCC_GetSYSCLKSource() != 0x08)
{
}
}
}
开发者ID:fjbali，项目名称:stm32-diy，代码行数:39，代码来源:bsp.c
示例13: SetSysClockToHSE
/**
* @brief Selects HSE as System clock source and configure HCLK, PCLK2
* and PCLK1 prescalers.
* @param None
* @retval None
*/
void SetSysClockToHSE(void)
{
/* SYSCLK, HCLK, PCLK2 and PCLK1 configuration -----------------------------*/
/* RCC system reset(for debug purpose) */
RCC_DeInit();
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if (HSEStartUpStatus == SUCCESS)
{
/* Enable Prefetch Buffer */
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
#ifndef STM32F10X_CL
/* Flash 0 wait state */
FLASH_SetLatency(FLASH_Latency_0);
#else
if (HSE_Value <= 24000000)
{
/* Flash 0 wait state */
FLASH_SetLatency(FLASH_Latency_0);
}
else
{
/* Flash 1 wait state */
FLASH_SetLatency(FLASH_Latency_1);
}
#endif /* STM32F10X_CL */
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK */
RCC_PCLK1Config(RCC_HCLK_Div1);
/* Select HSE as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_HSE);
/* Wait till PLL is used as system clock source */
while (RCC_GetSYSCLKSource() != 0x04)
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock configuration.
User can add here some code to deal with this error */
/* Go to infinite loop */
while (1)
{
}
}
}
开发者ID:DerekTan，项目名称:STM32F107_ucosIII，代码行数:66，代码来源:main.c
示例14: HAL_Core_Execute_Stop_Mode
void HAL_Core_Execute_Stop_Mode(void)
{
/* Enable WKUP pin */
PWR_WakeUpPinCmd(ENABLE);
/* Request to enter STOP mode with regulator in low power mode */
PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
/* At this stage the system has resumed from STOP mode */
/* Enable HSE, PLL and select PLL as system clock source after wake-up from STOP */
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
if(RCC_WaitForHSEStartUp() != SUCCESS)
{
/* If HSE startup fails try to recover by system reset */
NVIC_SystemReset();
}
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while(RCC_GetSYSCLKSource() != 0x08);
}
开发者ID:RobertNewkirk，项目名称:particle，代码行数:33，代码来源:core_hal_stm32f2xx.c
示例15: RCC_Config
// Clocks
void RCC_Config(void) {
ErrorStatus HSEStartUpStatus;
// Configuration of SYSCLK, HCLK, PCLK2 + PCLK1
RCC_DeInit();
RCC_HSEConfig(RCC_HSE_ON);
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if (HSEStartUpStatus == SUCCESS) {
RCC_HCLKConfig(RCC_SYSCLK_Div1);
RCC_PCLK2Config(RCC_HCLK_Div1);
RCC_PCLK1Config(RCC_HCLK_Div2);
// PLLCLK = 8MHz * 9 = 72 MHz
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
RCC_PLLCmd(ENABLE);
while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) {}
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
while (RCC_GetSYSCLKSource() != 0x08) {}
/* Enable GPIOA clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC, ENABLE);
} else {
// HSE start error - clock configuration will be wrong
// maybe say about it?
while (1) {}
}
}
开发者ID:semicontinuity，项目名称:embedded，代码行数:26，代码来源:main.c
示例16: RCC_Configuration
void RCC_Configuration(void)
{
ErrorStatus HSEStartUpStatus; //原本是定义在全局变量中
RCC_DeInit(); //时钟控制寄存器全部恢复默认值
RCC_HSEConfig(RCC_HSE_ON); //外部高速时钟源开启（8M晶振）
HSEStartUpStatus = RCC_WaitForHSEStartUp(); //等待外部时钟就绪
if(HSEStartUpStatus == SUCCESS) //如果时钟启动成功
{
RCC_HCLKConfig(RCC_SYSCLK_Div1); //定义AHB设备时钟为系统时钟1分频
RCC_PCLK2Config(RCC_HCLK_Div1); //定义AHB2设备时钟为HCLK时钟1分频
RCC_PCLK1Config(RCC_HCLK_Div2); //定义AHB1设备时钟为HCLK时钟2分频
RCC_ADCCLKConfig(RCC_PCLK2_Div6);
FLASH_SetLatency(FLASH_Latency_2); //设定内部FLASH的的延时周期为2周期
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //使能FLASH预存取缓冲区
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); //配置PLL时钟为外部高速时钟的9倍频，8MHz * 9 = 72 MHz
RCC_PLLCmd(ENABLE); //使能PLL时钟
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET){} //等待PLL时钟设置完成准备就绪
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //使用PLL时钟作为系统时钟源
while(RCC_GetSYSCLKSource() != 0x08){} //返回系统所用时钟源确认为外部高速晶振，8M晶振。
}
// //释放JTAG占用的A13 A14 A15 B3 B4 A14不能拉高 A13不能拉低
// RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);
// GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable , ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOC, ENABLE);
// RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE); //打开FSMC时钟
}
开发者ID:Meekdai，项目名称:Air_mouse，代码行数:26，代码来源:delay.c
示例17: RCC_Configuration
/************************************************************************************************
** Function name :
** Description :配置48M系统时钟
** RCC配置(使用外部8MHz晶振)，6倍频
** Input :
** Output :
** Return :
** Others :
**
************************************************************************************************/
void RCC_Configuration(void)
{
ErrorStatus HSEStartUpStatus;
//SystemInit();
/*将外设RCC寄存器重设为缺省值 */
RCC_DeInit();
/*设置外部高速晶振（HSE）*/
RCC_HSEConfig(RCC_HSE_ON); //RCC_HSE_ON——HSE晶振打开(ON)
/*等待HSE起振*/
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS){ //SUCCESS：HSE晶振稳定且就绪
/*设置AHB时钟（HCLK）*/
RCC_HCLKConfig(RCC_SYSCLK_Div1); //RCC_SYSCLK_Div1——AHB时钟 = 系统时钟
/* 设置高速AHB时钟（PCLK2）*/
RCC_PCLK2Config(RCC_HCLK_Div1); //RCC_HCLK_Div1——APB2时钟 = HCLK
/*设置低速AHB时钟（PCLK1）*/
RCC_PCLK1Config(RCC_HCLK_Div2); //RCC_HCLK_Div2——APB1时钟 = HCLK / 2
/*设置FLASH存储器延时时钟周期数*/
FLASH_SetLatency(FLASH_Latency_2); //FLASH_Latency_2 2延时周期
/*选择FLASH预取指缓存的模式*/
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); // 预取指缓存使能
/*设置PLL时钟源及倍频系数*/
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_6); // PLL的输入时钟 = HSE时钟频率；RCC_PLLMul_5——PLL输入时钟x 5
/*使能PLL */
RCC_PLLCmd(ENABLE);
/*检查指定的RCC标志位(PLL准备好标志)设置与否*/
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET){
}
/*设置系统时钟（SYSCLK） */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //RCC_SYSCLKSource_PLLCLK——选择PLL作为系统时钟
/* PLL返回用作系统时钟的时钟源*/
while(RCC_GetSYSCLKSource() != 0x08); //0x08：PLL作为系统时钟 { }
}
}
开发者ID:FreedomSnail，项目名称:STM32F103_BOOT_USB_AES，代码行数:44，代码来源:bsp.c
示例18: SYSCLKConfig_STOP
/*******************************************************************************
* Function Name : SYSCLKConfig_STOP
* Description : Configures system clock after wake-up from STOP: enable HSE, PLL
* and select PLL as system clock source.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void SYSCLKConfig_STOP(void)
{
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{
}
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while(RCC_GetSYSCLKSource() != 0x08)
{
}
}
}
开发者ID:timmy00274672，项目名称:STM32-Learning，代码行数:35，代码来源:main.c
示例19: RCC_Configuration
void RCC_Configuration(void)
{
ErrorStatus HSEStartupStatus;
RCC_DeInit();
RCC_HSEConfig(RCC_HSE_ON);
HSEStartupStatus = RCC_WaitForHSEStartUp();
if(HSEStartupStatus == SUCCESS)
{
RCC_HCLKConfig(RCC_SYSCLK_Div1);
RCC_PCLK2Config(RCC_HCLK_Div1);
RCC_PCLK1Config(RCC_HCLK_Div2);
FLASH_SetLatency(FLASH_Latency_2);
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
RCC_PLLConfig(RCC_PLLSource_HSE_Div1,RCC_PLLMul_9);
RCC_PLLCmd(ENABLE);
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
while(RCC_GetSYSCLKSource() != 0x08);
}
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA
,ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
}
开发者ID:timmy00274672，项目名称:STM32-Learning，代码行数:25，代码来源:main.c
示例20: RCC_Configuration
//配置系统时钟
void RCC_Configuration(void)
{
ErrorStatus HSEStartUpStatus; //定义外部高速晶体启动状态枚举变量
RCC_DeInit(); //复位RCC外部设备寄存器到默认值
RCC_HSEConfig(RCC_HSE_ON); //打开外部高速晶振
HSEStartUpStatus = RCC_WaitForHSEStartUp(); //等待外部高速时钟准备好
if(HSEStartUpStatus == SUCCESS) //外部高速时钟已经准别好
{
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //开启FLASH预读缓冲功能，加速FLASH的读取。所有程序中必须的用法.位置：RCC初始化子函数里面，时钟起振之后
FLASH_SetLatency(FLASH_Latency_2); //flash操作的延时
RCC_HCLKConfig(RCC_SYSCLK_Div1); //配置AHB(HCLK)时钟等于==SYSCLK
RCC_PCLK2Config(RCC_HCLK_Div1); //配置APB2(PCLK2)钟==AHB时钟
RCC_PCLK1Config(RCC_HCLK_Div2); //配置APB1(PCLK1)钟==AHB1/2时钟
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); //配置PLL时钟 == 外部高速晶体时钟 * 9 = 72MHz
RCC_PLLCmd(ENABLE); //使能PLL时钟
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) //等待PLL时钟就绪
{
}
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //配置系统时钟 = PLL时钟
while(RCC_GetSYSCLKSource() != 0x08) //检查PLL时钟是否作为系统时钟
{
}
}
}
开发者ID:catoffly，项目名称:TI_KONG，代码行数:29，代码来源:sys.c
注：本文中的RCC_WaitForHSEStartUp函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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