STM32L011F4P6 RTC时间修改复位问题

13665191532

用STM32CubeMx生成的工程
RTC初始化，用的是片内37KHz的时钟，开了停止模式时钟闹钟唤醒

1. /* RTC init function */
   
2. void MX_RTC_Init(void)
   
3. {
   
4.     RTC_TimeTypeDef sTime = {0};
   
5.     RTC_DateTypeDef sDate = {0};
   
6.     RTC_AlarmTypeDef sAlarm = {0};
   
7. 
   
8.     /** Initialize RTC Only
   
9.     */
   
10.     hrtc.Instance = RTC;
    
11.     hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
    
12.     hrtc.Init.AsynchPrediv = 99;  // 127;
    
13.     hrtc.Init.SynchPrediv = 366;  // 255;
    
14.     hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
    
15.     hrtc.Init.OutPutRemap = RTC_OUTPUT_REMAP_NONE;
    
16.     hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
    
17.     hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
    
18.     if (HAL_RTC_Init(&hrtc) != HAL_OK)
    
19.     {
    
20.         Error_Handler();
    
21.     }
    
22. 
    
23.     /* USER CODE BEGIN Check_RTC_BKUP */
    
24. 
    
25.     /* USER CODE END Check_RTC_BKUP */
    
26. 
    
27.     /** Initialize RTC and set the Time and Date
    
28.     */
    
29.     sTime.Hours = 0;
    
30.     sTime.Minutes = 0;
    
31.     sTime.Seconds = 0;
    
32.     sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
    
33.     sTime.StoreOperation = RTC_STOREOPERATION_RESET;
    
34.     if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BIN) != HAL_OK)
    
35.     {
    
36.         Error_Handler();
    
37.     }
    
38.     sDate.WeekDay = RTC_WEEKDAY_MONDAY;
    
39.     sDate.Month = RTC_MONTH_JANUARY;
    
40.     sDate.Date = 1;
    
41.     sDate.Year = 0;
    
42. 
    
43.     if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BIN) != HAL_OK)
    
44.     {
    
45.         Error_Handler();
    
46.     }
    
47.     /** Enable the Alarm A
    
48.     */
    
49.     sAlarm.AlarmTime.Hours = 0;
    
50.     sAlarm.AlarmTime.Minutes = 0;
    
51.     sAlarm.AlarmTime.Seconds = 10;
    
52.     sAlarm.AlarmTime.SubSeconds = 0;
    
53.     sAlarm.AlarmTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
    
54.     sAlarm.AlarmTime.StoreOperation = RTC_STOREOPERATION_RESET;
    
55.     sAlarm.AlarmMask = RTC_ALARMMASK_DATEWEEKDAY|RTC_ALARMMASK_HOURS
    
56.                        |RTC_ALARMMASK_MINUTES;
    
57.     sAlarm.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_ALL;
    
58.     sAlarm.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;
    
59.     sAlarm.AlarmDateWeekDay = 1;
    
60.     sAlarm.Alarm = RTC_ALARM_A;
    
61.     if (HAL_RTC_SetAlarm_IT(&hrtc, &sAlarm, RTC_FORMAT_BIN) != HAL_OK)
    
62.     {
    
63.         Error_Handler();
    
64.     }
    
65. 
    
66. }

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用获取到的时间修改系统RTC时钟

1. sTime.Hours = gtime.Hours;
   
2.     sTime.Minutes = gtime.Minutes;
   
3.     sTime.Seconds = gtime.Seconds;
   
4.     sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
   
5.     sTime.StoreOperation = RTC_STOREOPERATION_RESET;
   
6.     if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD) != HAL_OK)
   
7.     {
   
8.         Error_Handler();
   
9.     }

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但改完之后把时间打印出来，又变成了00:00:00

正点原子

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