接上一篇USART数据发送，在STM32CubeMX添加RTC，如下图片
Calenda Time配置时间为12:45:6
Calenda Time配置日期为20/1/1
在stm32g431xx_hal_rtc.h参照时间结构体
typedef struct
{
uint8_t Hours; /*!< Specifies the RTC Time Hour.
This parameter must be a number between Min_Data = 0 and Max_Data = 12 if the RTC_HourFormat_12 is selected.
This parameter must be a number between Min_Data = 0 and Max_Data = 23 if the RTC_HourFormat_24 is selected */
uint8_t Minutes; /*!< Specifies the RTC Time Minutes.
This parameter must be a number between Min_Data = 0 and Max_Data = 59 */
uint8_t Seconds; /*!< Specifies the RTC Time Seconds.
This parameter must be a number between Min_Data = 0 and Max_Data = 59 */
uint8_t TimeFormat; /*!< Specifies the RTC AM/PM Time.
This parameter can be a value of @ref RTC_AM_PM_Definitions */
uint32_t SubSeconds; /*!< Specifies the RTC_SSR RTC Sub Second register content.
This parameter corresponds to a time unit range between [0-1] Second
with [1 Sec / SecondFraction +1] granularity */
uint32_t SecondFraction; /*!< Specifies the range or granularity of Sub Second register content
corresponding to Synchronous pre-scaler factor value (PREDIV_S)
This parameter corresponds to a time unit range between [0-1] Second
with [1 Sec / SecondFraction +1] granularity.
This field will be used only by HAL_RTC_GetTime function */
uint32_t DayLightSaving; /*!< This interface is deprecated. To manage Daylight Saving Time,
please use HAL_RTC_DST_xxx functions */
uint32_t StoreOperation; /*!< This interface is deprecated. To manage Daylight Saving Time,
please use HAL_RTC_DST_xxx functions */
} RTC_TimeTypeDef;
```c
在stm32g431xx_hal_rtc.h参照日期结构体
typedef struct
{
uint8_t WeekDay; /*!< Specifies the RTC Date WeekDay.
This parameter can be a value of @ref RTC_WeekDay_Definitions */
uint8_t Month; /*!< Specifies the RTC Date Month (in BCD format).
This parameter can be a value of @ref RTC_Month_Date_Definitions */
uint8_t Date; /*!< Specifies the RTC Date.
This parameter must be a number between Min_Data = 1 and Max_Data = 31 */
uint8_t Year; /*!< Specifies the RTC Date Year.
This parameter must be a number between Min_Data = 0 and Max_Data = 99 */
} RTC_DateTypeDef;
/* USER CODE BEGIN PV */
uint16_t TX_ms=0;
char TX_buff[100];
char RX_buff[10];
uint16_t TX_t=0;
RTC_TimeTypeDef Time;
RTC_DateTypeDef Date;
/* USER CODE END PV */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
if(TX_ms==1000){
// sprintf(TX_buff,"%04d Fighting! zzy",TX_t);
HAL_RTC_GetTime(&hrtc,&Time,RTC_FORMAT_BIN);//获取时间
HAL_RTC_GetDate(&hrtc,&Date,RTC_FORMAT_BIN);//获取日期
sprintf(TX_buff," %02d/%02d/%02d %02d:%02d:%02d",2000+Date.Year,Date.Month,Date.Date,Time.Hours,Time.Minutes,Time.Seconds);
HAL_UART_Transmit(&huart1,(uint8_t *)TX_buff,(uint16_t)sizeof(TX_buff),20);
TX_t++;
TX_ms=0;
}
}
/* USER CODE END 3 */
}
效果如下图
