Posted on September 14, 2017 at 08:29These are the part of code which set RTC date and Time
void StartDefaultTask(void const * argument)
{
/* USER CODE BEGIN 5 */
/* Registering UART RXNE interrupt */
SET_BIT(huart1.Instance->CR1, USART_CR1_RXNEIE);
GSMPowerUp();
osDelay(15000);
GSMDisableEcho();
osDelay(5000);
GSMGetTD(); /* Getting Date and time from GSM module */
if (HAL_RTC_SetTime(&hrtc, &Time, RTC_FORMAT_BCD) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
if (HAL_RTC_SetDate(&hrtc, &Date, RTC_FORMAT_BCD) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/* Infinite loop */
for(;;)
{
osSemaphoreWait (GPSWakeUpSemaphoreHandle, portMAX_DELAY);
osTimerStart(RemotePowerONOFFTimerHandle, 3 * ONE_MINUTE_TIME);
osDelay(1);
}
/* USER CODE END 5 */
}
Only Hour, Minutes and Senconds parameters of the RTC Time structure I am updating. All other fields are left unchanged (TimeFormat, SubSeconds, SecondFraction, DayLightSaving, StoreOperation)
And Month, Date, and Year parameters of RTC Date structure is updating, WeekDay will be the default value.
Date and Time information from the GSM module is properly populating to the Time and Date Structures.
Note: CMSIS Api 'MX_RTC_Init' updating RTC at the time of initialization as follows.
static void MX_RTC_Init(void)
{
RTC_TimeTypeDef sTime;
RTC_DateTypeDef sDate;
/**Initialize RTC Only
*/
hrtc.Instance = RTC;
hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
hrtc.Init.AsynchPrediv = 127;
hrtc.Init.SynchPrediv = 255;
hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
if (HAL_RTC_Init(&hrtc) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Initialize RTC and set the Time and Date
*/
sTime.Hours = 0x0;
sTime.Minutes = 0x0;
sTime.Seconds = 0x0;
sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
sTime.StoreOperation = RTC_STOREOPERATION_RESET;
if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
sDate.WeekDay = RTC_WEEKDAY_MONDAY;
sDate.Month = RTC_MONTH_JANUARY;
sDate.Date = 0x1;
sDate.Year = 0x0;
if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BCD) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
I have used a 5 minute timer to get the RTC Time and Date. On the first timer hit the Time value is Hours = 0, Minutes = 5 and Seconds = 9 (This is just an example).
But for the remaining Timer hits Hours, Minutes and seconds values unchanged and only Subseconds value is changing.
