首先，F030与F072的RTC唤醒功能是不一样的，在相关定义文件stm32f0xx_exti.h中有如下定义：
#define EXTI_Line17 ((uint32_t)0x00020000) /*!< Internal interrupt line 17
Connected to the RTC Alarm
event */
#define EXTI_Line20 ((uint32_t)0x00100000) /*!< Internal interrupt line 20
Connected to the RTC wakeup
event, only applicable for
STM32F072 devices */
也就是最好用最正宗的RTC唤醒功能（EXTI_Line20）只能用在F072上，不能用于F030，所以只能使用RTC Alarm（ EXTI_Line17） 方式来唤醒RTC。
RTC设置流程如下：
1.初始设置RTC的秒时钟：
RTC_InitStructure.RTC_AsynchPrediv
RTC_InitStructure.RTC_SynchPrediv
计算方法：LSI=40000HZ;
LSI/(RTC_AsynchPrediv+1)/(RTC_SynchPrediv +1) =1
2.开启RTC中断及NVIC
/* 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;
NVIC_InitStruct.NVIC_IRQChannel = RTC_IRQn;
NVIC_InitStruct.NVIC_IRQChannelPriority = 1;
NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
3.每次进入休眠之前，都要设置闹钟RTC Alarm
RTC_AlarmStructure.RTC_AlarmTime.RTC_H12 = RTC_H12_AM;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours = 0x01;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes = 0x00;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = nDelayCNT;//0x05;
RTC_AlarmStructure.RTC_AlarmDateWeekDay = 0x31;
其中nDelayCNT就是需要达到的唤醒时间长度，单位是秒(s).
至此，就算是把RTC唤醒搞定了 ，当然还有包括其他比如时钟RCC的设置，暂时以官方例程为准。