rtc运行一晚上时间比实际实际快了十多分钟 ，程序运行逻辑，程序运行后5分钟进入休眠模式，10分钟后rtc唤醒并打印当前时间
请教出现这种情况的原因是什么
rtc 配置
void my_rtc_Init(void)
{
RTC_InitTypeDef RTC_InitStruct = {0};
RTC_InitStruct.DateStruct.Day = 0x20; //设置日期，DAY、MONTH、YEAR必须为BCD方式，星期为0~6，代表星期日，星期一至星期六
RTC_InitStruct.DateStruct.Month = RTC_Month_March;
RTC_InitStruct.DateStruct.Week = RTC_Weekday_Wednesday;
RTC_InitStruct.DateStruct.Year = 0x24;
RTC_InitStruct.TimeStruct.Hour = 0x09; //设置时间，HOUR、MINIUTE、SECOND必须为BCD方式，用户须保证HOUR、AMPM、H24之间的关联正确性
RTC_InitStruct.TimeStruct.Minute = 0x09;
RTC_InitStruct.TimeStruct.Second = 0x00;
RTC_InitStruct.TimeStruct.AMPM = 0;
RTC_InitStruct.TimeStruct.H24 = 1;
RTC_InitStruct.RTC_ClockSource = RTC_RTCCLK_FROM_LSI;
RTC_Init(&RTC_InitStruct); // 用户需选定需要使用的时钟源
}
/* 设置时钟 */
unsigned char at_cmd_setrtc(Timestamp tm){
RTC_DateTypeDef RTC_DateStruct = {0};
RTC_TimeTypeDef RTC_TimeStruct = {0};
RTC_DateStruct.Year = HexToBcd((unsigned char) tm.year);
RTC_DateStruct.Month = HexToBcd((unsigned char) tm.month);
RTC_DateStruct.Day = HexToBcd((unsigned char) tm.day);
RTC_DateStruct.Week = HexToBcd((unsigned char) tm.week);
RTC_TimeStruct.Hour = HexToBcd((unsigned char) tm.hour);
RTC_TimeStruct.Minute = HexToBcd((unsigned char) tm.minute);
RTC_TimeStruct.Second = HexToBcd((unsigned char) tm.second);
RTC_TimeStruct.AMPM = 0;
RTC_TimeStruct.H24 = 1;
RTC_SetTime(&RTC_TimeStruct);
RTC_SetDate(&RTC_DateStruct);
return 0;
}
uint8_t *WeekdayStr[7]= {"SUN","MON","TUE","WED","THU","FRI","SAT"};
void showrtctime(void)
{
char out[20];
RTC_TimeTypeDef RTC_TimeStruct = {0};
RTC_DateTypeDef RTC_DateStruct = {0};
RTC_GetDate(&RTC_DateStruct);
RTC_GetTime(&RTC_TimeStruct);
sprintf(out,"20%02d-%02d-%02d %s",BcdToHex(RTC_DateStruct.Year),BcdToHex(RTC_DateStruct.Month),BcdToHex(RTC_DateStruct.Day),WeekdayStr[RTC_DateStruct.Week]);
printf("current time: %s ",out);
sprintf(out,"%02d:%02d:%02d",BcdToHex(RTC_TimeStruct.Hour),BcdToHex(RTC_TimeStruct.Minute),BcdToHex(RTC_TimeStruct.Second));
printf(" %s \r\n",out);
}
void set_rtcAwk(uint16_t interval)
{
RTC_AWTTypeDef RTC_AWTStruct = {0};
RTC_AWTCmd(DISABLE);
NVIC_DisableIRQ(RTC_IRQn);
interval = (uint16_t)(interval*0.125) - 1;
printf("set_rtcAwk %d \r\n", interval);
showrtctime();
RTC_AWTStruct.AWT_ARRValue = interval; //(interval+1)/0.125
RTC_AWTStruct.AWT_ClockSource = RTC_AWTSOURCE_FROM_RTC1HZ_8; //0.125hz
RTC_AWTConfig(&RTC_AWTStruct);
RTC_ClearITPendingBit(RTC_IT_AWTIMER);
RTC_AWTCmd(ENABLE);
RTC_ITConfig(RTC_IT_AWTIMER, ENABLE);
NVIC_EnableIRQ(RTC_IRQn);
}
void RTC_IRQHandlerCallBack(void)
{
if (RTC_GetITState(RTC_IT_AWTIMER ))
{
showrtctime();
RTC_ClearITPendingBit(RTC_IT_AWTIMER);
}
}
/******************************************************************************
* Local function prototypes ('static')
******************************************************************************/
void System_Clk_Config(void)
{
uint8_t res;
RCC_HSI_Enable( RCC_HSIOSC_DIV2 ); //配置系统时钟为HSI 24M
RCC_LSI_Enable();
RCC_AHBPeriphClk_Enable(RCC_AHB_PERIPH_FLASH, ENABLE); //打开FLASH时钟
FLASH_SetLatency(FLASH_Latency_1); //频率小等于24M需要配置FlashWait=1
REGBITS_SET(CW_FLASH->CR1, FLASH_CR1_STANDBY_Msk); //打开FLASH低功耗使能控制
res = RCC_SysClk_Switch( RCC_SYSCLKSRC_HSI ); //切换系统时钟到HSI
if( res == 0x0U ) //切换系统时钟成功
{
RCC_SystemCoreClockUpdate(24000000);
RCC_HCLKPRS_Config(RCC_HCLK_DIV1); //HCLK（不分频）=PCLK
RCC_PCLKPRS_Config(RCC_PCLK_DIV1);
}
else
{
while(1)
{
}
}
}
void RCC_CLK_Config(void)
{
//外设时钟使能
__RCC_GPIOA_CLK_ENABLE();
__RCC_GPIOB_CLK_ENABLE();
__RCC_GPIOC_CLK_ENABLE();
__RCC_GPIOF_CLK_ENABLE();
__RCC_UART1_CLK_ENABLE();
__RCC_UART2_CLK_ENABLE();
__RCC_UART3_CLK_ENABLE();
__RCC_UART4_CLK_ENABLE();
__RCC_UART5_CLK_ENABLE();
__RCC_UART6_CLK_ENABLE();
//__RCC_SPI1_CLK_ENABLE();
__RCC_RTC_CLK_ENABLE();
__RCC_BTIM_CLK_ENABLE();
__RCC_DMA_CLK_ENABLE();
}
/******************************************************************************
* Local variable definitions ('static') *
******************************************************************************/
/******************************************************************************
* Local pre-processor symbols/macros ('#define')
******************************************************************************/
/*****************************************************************************
* Function implementation - global ('extern') and local ('static')
******************************************************************************/
/**
******************************************************************************
** \brief Main function of project
**
** \return uint32_t return value, if needed
**
** This sample HSI switch to PLL, PLL switch to HSI.
**
******************************************************************************/
int32_t main(void)
{
System_Clk_Config();
RCC_CLK_Config();
//InitTick(24000000);
my_rtc_Init();
set_rtcAwk(600);
Sleep_Mode_Config(DEEP_SLEEP_MODE); //DEEP_SLEEP_MODE
printf("test...\r\n");
while (1)
{
/* code */
if(1==devParam_t.enter_sleep)
{
showrtctime();
printf("enter_low_power_consumption_mode...\r\n");
Enter_Deep_Sleep_Mode();
devParam_t.enter_sleep=0;
printf("exit_low_power_consumption_mode...\r\n");
showrtctime();
}
}
}
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