STM32F0单片机，利用闹钟中断5秒唤醒处于停止状态的单片机，求教！
代码如下
void Enter_StopMode(void)
{
EXIT_UART_Init();//RX引脚配置为外部中断
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR , ENABLE);//开电源管理时钟
RTC_Config();
RTC_AlarmConfig();//POWER_LED(ON);
EXTI_ClearITPendingBit(EXTI_Line0); //清外部中断的标志
PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);//进入休眠模式
RTC_ITConfig(RTC_IT_ALRA, DISABLE);
RTC_AlarmCmd(RTC_Alarm_A, DISABLE);
RCC_init(); USART2_COM2init(9600);
// EXTI_ClearITPendingBit(EXTI_Line0);
// RTC_ClearITPendingBit(RTC_IT_ALRA);
// EXTI_ClearITPendingBit(EXTI_Line17);
}
//LSI作为时钟源
void RTC_Config(void)
{
RTC_InitTypeDef RTC_InitStructure;
RTC_TimeTypeDefRTC_TimeStruct={0,0,0,RTC_H12_AM};
RTC_AlarmTypeDef sAlarm={{0,0,1,RTC_H12_AM},RTC_AlarmMask_DateWeekDay|RTC_AlarmMask_Hours|RTC_AlarmMask_Minutes,0,0};
// RTC_AlarmTypeDef sAlarm={{0,0,5,RTC_H12_AM},RTC_AlarmMask_All,0,0};
// RTC_TimeStruct RTC_AlarmTypeDef ;
/* Enable the PWR clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Allow access to RTC */
//PWR_BackupAccessCmd(ENABLE);
RCC_LSICmd(ENABLE);
while(RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET)
{
}
/* Select the RTC Clock Source */
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI);
/**Initialize RTC and set the Time and Date
Configure the RTC data register and RTC prescaler */
RTC_InitStructure.RTC_AsynchPrediv = 0x18F;
RTC_InitStructure.RTC_SynchPrediv= 0x63;
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
RTC_Init(&RTC_InitStructure);
/* Set the time to 00h 00mn 00s AM */
//RTC_TimeStruct.RTC_H12 = RTC_H12_AM;
//RTC_TimeStruct.RTC_Hours = 0x00;
//RTC_TimeStruct.RTC_Minutes = 0x00;
//RTC_TimeStruct.RTC_Seconds = 0x00;
RTC_SetTime(RTC_Format_BIN, &RTC_TimeStruct);
RTC_SetAlarm(RTC_Format_BIN, RTC_Alarm_A, &sAlarm);
/* Enable the RTC Clock */
RCC_RTCCLKCmd(ENABLE);
RTC_WaitForSynchro();
}
void RTC_AlarmConfig(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* EXTI configuration */
EXTI_ClearITPendingBit(EXTI_Line17);
EXTI_InitStructure.EXTI_Line = EXTI_Line17;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Enable the RTC Alarm Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = RTC_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* Enable AlarmA interrupt */
RTC_ITConfig(RTC_IT_ALRA, ENABLE);
/* Enable the alarmA */
RTC_AlarmCmd(RTC_Alarm_A, ENABLE);
RTC_ClearITPendingBit(RTC_IT_ALRA);
EXTI_ClearITPendingBit(EXTI_Line17);
} 一直不能进入闹钟中断，不知道什么原因，用的是内部8M晶振，中断服务程序如下：
void RTC_IRQHandler(void)
{
if (RTC_GetITStatus(RTC_IT_ALRA) != RESET)
{
RTC_ClearITPendingBit (RTC_IT_ALRA);//清除闹钟中断
POWER_LED(ON);
}
EXTI_ClearITPendingBit(EXTI_Line17);
}
RTC_IRQHandler是否有起动文件名匹配呢 ayb_ice 发表于 2019-11-20 09:44
RTC_IRQHandler是否有起动文件名匹配呢
闹钟中断程序名就是 voidRTC_IRQHandler(void) songyi2008 发表于 2019-11-20 09:52
闹钟中断程序名就是 voidRTC_IRQHandler(void)
这个名字可以随便起的
关键要和启动文件名匹配 F0只有voidRTC_IRQHandler(void)这个函数， 没有RTC_Alarm_IRQHandler songyi2008 发表于 2019-11-20 10:22
F0只有voidRTC_IRQHandler(void)这个函数， 没有RTC_Alarm_IRQHandler
那就是中断没有配置好吧
都没有看你调用NVIC_EnableIRQ /* Enable the RTC Alarm Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = RTC_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
在下面那个配置函数里有 没有看到你闹钟配置，没有配置何来的中断，我也用RTC延时，1秒～23小时均可，不过不是用的STM32而已
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