static volatile uint32_t g_rtc_wakeup_event=0;
static RTC_AlarmTypeDef RTC_AlarmStructure;
void rtc_alarm_a_init(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
RTC_AlarmCmd(RTC_Alarm_A,DISABLE);
RTC_AlarmStructure.RTC_AlarmTime.RTC_H12 = RTC_H12_PM;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours = 0x20;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes = 0x37;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = 0x00;
#if 0
//闹钟时间修改
//RTC_AlarmStructure.RTC_AlarmDateWeekDay = 0x31;
//RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date;
RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_DateWeekDay; //屏蔽日期和星期,就是闹钟每天都生效
#endif
#if 0
//指定1号生效
RTC_AlarmStructure.RTC_AlarmDateWeekDay = 0x01;
RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date;//指定日期生效
RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_None; //不屏蔽日期和星期,开放日期和星期的指定
#endif
#if 1
//指定星期日生效
RTC_AlarmStructure.RTC_AlarmDateWeekDay = RTC_Weekday_Saturday;
RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_WeekDay;//指定星期生效
RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_None; //不屏蔽日期和星期,开放日期和星期的指定
#endif
RTC_SetAlarm(RTC_Format_BCD,RTC_Alarm_A,&RTC_AlarmStructure);
RTC_AlarmCmd(RTC_Alarm_A,ENABLE);
/* Enable RTC Alarm A Interrupt,使能闹钟A的中断 */
RTC_ITConfig(RTC_IT_ALRA, ENABLE);
RTC_ClearFlag(RTC_FLAG_ALRAF);
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_Alarm_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
修改闹钟时间,必须与日期配对否之无效
文章来源:https://www.toymoban.com/news/detail-675673.html
主函数代码文章来源地址https://www.toymoban.com/news/detail-675673.html
int main(void)
{
RTC_DateTypeDef RTC_DateStructure;
RTC_TimeTypeDef RTC_TimeStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
Led_init();
key_init();
/* 初始化串口1波特率为115200bps,若发送/接收数据有乱码,请检查PLL */
usart1_init(115200);
rtc_init();
rtc_alarm_a_init();
printf("this is rtc test\r\n");
while(1)
{
//检测RTC唤醒中断是否触发
if(g_rtc_wakeup_event)
{
//获取时间
RTC_GetTime(RTC_Format_BCD,&RTC_TimeStructure);
printf("Time %02X:%02X:%02X\r\n",RTC_TimeStructure.RTC_Hours,RTC_TimeStructure.RTC_Minutes,RTC_TimeStructure.RTC_Seconds);
//获取日期
RTC_GetDate(RTC_Format_BCD,&RTC_DateStructure);
printf("Date 20%02X-%02X-%02X Week:%X\r\n",RTC_DateStructure.RTC_Year,RTC_DateStructure.RTC_Month,RTC_DateStructure.RTC_Date,RTC_DateStructure.RTC_WeekDay);
g_rtc_wakeup_event=0;
}
}
}
void USART1_IRQHandler(void)
{
uint8_t d;
if(USART_GetITStatus(USART1,USART_IT_RXNE) == SET)
{
d = USART_ReceiveData(USART1);
/* 告诉CPU,已经完成接收中断请求,可以响应新的接收中断请求 */
USART_ClearITPendingBit(USART1,USART_IT_RXNE);
}
}
void RTC_WKUP_IRQHandler(void)
{
if(RTC_GetITStatus(RTC_IT_WUT) == SET)
{
printf("RTC_WKUP_IRQHandler\r\n");
g_rtc_wakeup_event=1;
RTC_ClearITPendingBit(RTC_IT_WUT);
EXTI_ClearITPendingBit(EXTI_Line22);
}
}
void RTC_Alarm_IRQHandler(void)
{
if(RTC_GetITStatus(RTC_IT_ALRA) == SET)
{
printf("RTC_Alarm_IRQHandler\r\n");
RTC_ClearITPendingBit(RTC_IT_ALRA);
EXTI_ClearITPendingBit(EXTI_Line17);
}
}
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