/*!
* @brief RTC setting up alarm.
* @param uint32_t instance : RTC instance
* @param uint8_t offsetSec : offset in seconds to call interrupt.
*/
void rtcSetAlarm(uint32_t instance, uint8_t offsetSec)
{
uint32_t seconds;
rtc_datetime_t date;
if ((offsetSec < 1) || (offsetSec > 60))
{
offsetSec = 5;
}
// get date time and convert to seconds
RTC_DRV_GetDatetime(instance, &date);
// convert to sec and add offset
RTC_HAL_ConvertDatetimeToSecs(&date, &seconds);
seconds += offsetSec;
RTC_HAL_ConvertSecsToDatetime(&seconds, &date);
// set the date time for alarm
if (RTC_DRV_SetAlarm(instance, &date, true))
{
}
else
{
printf("Failed to set alarm. Alarm time is not in the future\r\n");
return;
}
}
bool RTC_DRV_SetAlarmRepeat(uint32_t instance, rtc_datetime_t *alarmTime, rtc_datetime_t *alarmRepInterval)
{
assert(s_rtcRepeatAlarmState);
assert(alarmRepInterval);
if (!(RTC_DRV_SetAlarm(instance, alarmTime, true)))
{
return false;
}
memcpy(&s_rtcRepeatAlarmState->alarmTime, alarmTime, sizeof(*alarmTime));
memcpy(&s_rtcRepeatAlarmState->alarmRepTime, alarmRepInterval, sizeof(*alarmRepInterval));
return true;
}
void RTC_DRV_AlarmIntAction(uint32_t instance)
{
uint32_t rtcBaseAddr = g_rtcBaseAddr[instance];
if (s_rtcRepeatAlarmState != NULL)
{
s_rtcRepeatAlarmState->alarmTime.year += s_rtcRepeatAlarmState->alarmRepTime.year;
s_rtcRepeatAlarmState->alarmTime.month += s_rtcRepeatAlarmState->alarmRepTime.month;
s_rtcRepeatAlarmState->alarmTime.day += s_rtcRepeatAlarmState->alarmRepTime.day;
s_rtcRepeatAlarmState->alarmTime.hour += s_rtcRepeatAlarmState->alarmRepTime.hour;
s_rtcRepeatAlarmState->alarmTime.minute += s_rtcRepeatAlarmState->alarmRepTime.minute;
RTC_DRV_SetAlarm(instance, &s_rtcRepeatAlarmState->alarmTime, true);
}
else
{
/* Writing to the alarm register clears the TAF flag in the Status register */
RTC_HAL_SetAlarmReg(rtcBaseAddr, 0x0);
RTC_HAL_SetAlarmIntCmd(rtcBaseAddr, false);
}
}
/*!
* @brief RTC in alarm mode.
*
* This function demostrates how to use RTC as an alarm clock.
*/
int main(void)
{
uint32_t sec;
uint32_t currSeconds;
rtc_datetime_t date;
// Init hardware.
hardware_init();
PRINTF("RTC example: set up time to wake up an alarm\r\n");
// Init RTC
RTC_DRV_Init(RTC_INSTANCE);
/* Need to check this here as the RTC_DRV_Init() may have issued a software reset on the
* module clearing all prior RTC OSC related setup */
BOARD_InitRtcOsc();
// Set a start date time and start RT.
date.year = 2014U;
date.month = 12U;
date.day = 25U;
date.hour = 19U;
date.minute = 0;
date.second = 0;
// Set RTC time to default
RTC_DRV_SetDatetime(RTC_INSTANCE, &date);
while (1)
{
busyWait = true;
// Get date time.
RTC_DRV_GetDatetime(RTC_INSTANCE, &date);
// print default time
PRINTF("Current datetime: %04hd-%02hd-%02hd %02hd:%02hd:%02hd\r\n",
date.year, date.month, date.day,
date.hour, date.minute, date.second);
// Get alarm time from user
sec = 0;
PRINTF("Please input the number of second to wait for alarm \r\n");
PRINTF("The second must be positive value\r\n");
while (sec < 1)
{
SCANF("%d",&sec);
}
// Get current date time.
RTC_DRV_GetDatetime(RTC_INSTANCE, &date);
// Convert current date time to seconds
RTC_HAL_ConvertDatetimeToSecs(&date, &currSeconds);
// Add sec to currSeconds
currSeconds += sec;
// Convert sec to date type
RTC_HAL_ConvertSecsToDatetime(&currSeconds, &date);
// Set alarm time
if(!RTC_DRV_SetAlarm(RTC_INSTANCE, &date, true))
{
PRINTF("Failed to set alarm. \r\n");
continue;
}
// Print alarm time
PRINTF("Alarm will be occured at: %04hd-%02hd-%02hd %02hd:%02hd:%02hd\r\n",
date.year, date.month, date.day,
date.hour, date.minute, date.second);
// Wait until alarm occures
while(busyWait)
{}
PRINTF("\r\n Alarm occured !!!! ");
}
}
/*!
* @brief RTC in alarm mode.
*
* This function demostrates how to use RTC as an alarm clock.
*/
void main(void)
{
uint32_t sec;
uint32_t currSeconds;
rtc_datetime_t date;
// Init hardware.
hardware_init();
// Call this function to initialize the console UART. This function
// enables the use of STDIO functions (printf, scanf, etc.)
dbg_uart_init();
printf("RTC example: set up time to wake up an alarm\r\n");
// Init RTC
RTC_DRV_Init(RTC_INSTANCE);
// Set a start date time and start RT.
date.year = 2014U;
date.month = 12U;
date.day = 25U;
date.hour = 19U;
date.minute = 0;
date.second = 0;
// Set RTC time to default
RTC_DRV_SetDatetime(RTC_INSTANCE, &date);
while (1)
{
// Get date time.
RTC_DRV_GetDatetime(RTC_INSTANCE, &date);
// print default time
printf("Current datetime: %04hd-%02hd-%02hd %02hd:%02hd:%02hd\r\n",
date.year, date.month, date.day,
date.hour, date.minute, date.second);
// Convert current date time to seconds
RTC_HAL_ConvertDatetimeToSecs(&date, &currSeconds);
// Get alarm time from user
sec = 0;
printf("Please input the number of second to wait for alarm \r\n");
printf("The second must be positive value\r\n");
while (sec < 1)
{
scanf("%d",&sec);
}
// Add curr_seconds
sec += currSeconds;
// Convert sec to date type
RTC_HAL_ConvertSecsToDatetime(&sec, &date);
// Set alarm time
if(!RTC_DRV_SetAlarm(RTC_INSTANCE, &date, true))
{
printf("Failed to set alarm. \r\n");
continue;
}
// Print alarm time
printf("Alarm will be occured at: %04hd-%02hd-%02hd %02hd:%02hd:%02hd\r\n",
date.year, date.month, date.day,
date.hour, date.minute, date.second);
// Wait until alarm occures
while(busyWait)
{}
printf("\r\n Alarm occured !!!! ");
}
}