/*!
* @brief RTC init.
* @param uint32_t instance : RTC instance
*/
void rtcInit(uint32_t instance, rtc_datetime_t *date)
{
#ifndef FRDM_K22F120M
// Configure RTC pins
configure_rtc_pins(instance);
#endif
// select the 1Hz for RTC_CLKOUT
CLOCK_SYS_SetRtcOutSrc(kClockRtcoutSrc1Hz);
RTC_DRV_Init(instance);
RTC_DRV_SetDatetime(instance, date);
}
/*!
* @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 !!!! ");
}
}
