/**
* @brief RTC IRQHandler.
* @param None.
* @return None.
*/
void RTC_IRQHandler()
{
S_RTC_TIME_DATA_T sCurTime;
printf("RTC_IRQHandler running...\n");
/* RTC Tick interrupt */
if ((RTC->RIER & RTC_RIER_TIER_Msk) && (RTC->RIIR & RTC_RIIR_TIF_Msk))
{
printf("RTC Tick Interrupt.\n");
RTC->RIIR = RTC_RIIR_TIF_Msk;
}
/* RTC Alarm interrupt */
if ((RTC->RIER & RTC_RIER_AIER_Msk) && (RTC->RIIR & RTC_RIIR_AIF_Msk))
{
printf("RTC Alarm Interrupt.\n");
RTC->RIIR = RTC_RIIR_AIF_Msk;
RTC_GetDateAndTime(&sCurTime);
printf("Current Time:%d/%02d/%02d %02d:%02d:%02d\n",sCurTime.u32Year,sCurTime.u32Month,sCurTime.u32Day,sCurTime.u32Hour,sCurTime.u32Minute,sCurTime.u32Second);
RTC_DISABLE_TICK_WAKEUP(); /* RTC tick shouldn't wake up CPU */
planNextRTCInterrupt(&sCurTime);
}
if ((RTC->RIER & RTC_RIER_SNOOPIER_Msk) && (RTC->RIIR & RTC_RIIR_SNOOPIF_Msk)) /* snooper interrupt occurred */
{
RTC->RIIR = RTC_RIIR_SNOOPIF_Msk;
}
}
time_t rtc_read(void)
{
if (! rtc_inited) {
rtc_init();
}
S_RTC_TIME_DATA_T rtc_datetime;
RTC_GetDateAndTime(&rtc_datetime);
struct tm timeinfo;
// Convert struct tm to S_RTC_TIME_DATA_T
timeinfo.tm_year = rtc_datetime.u32Year - YEAR0;
timeinfo.tm_mon = rtc_datetime.u32Month - 1;
timeinfo.tm_mday = rtc_datetime.u32Day;
timeinfo.tm_wday = rtc_datetime.u32DayOfWeek;
timeinfo.tm_hour = rtc_datetime.u32Hour;
timeinfo.tm_min = rtc_datetime.u32Minute;
timeinfo.tm_sec = rtc_datetime.u32Second;
// Convert to timestamp
time_t t = mktime(&timeinfo);
return t;
}
time_t rtc_read(void)
{
// NOTE: After boot, RTC time registers are not synced immediately, about 1 sec latency.
// RTC time got (through RTC_GetDateAndTime()) in this sec would be last-synced and incorrect.
// NUC472/M453: Known issue
// M487: Fixed
if (! rtc_isenabled()) {
rtc_init();
}
S_RTC_TIME_DATA_T rtc_datetime;
RTC_GetDateAndTime(&rtc_datetime);
struct tm timeinfo;
// Convert struct tm to S_RTC_TIME_DATA_T
timeinfo.tm_year = rtc_datetime.u32Year - YEAR0;
timeinfo.tm_mon = rtc_datetime.u32Month - 1;
timeinfo.tm_mday = rtc_datetime.u32Day;
timeinfo.tm_wday = rtc_datetime.u32DayOfWeek;
timeinfo.tm_hour = rtc_datetime.u32Hour;
if (rtc_datetime.u32TimeScale == RTC_CLOCK_12 && rtc_datetime.u32AmPm == RTC_PM) {
timeinfo.tm_hour += 12;
}
timeinfo.tm_min = rtc_datetime.u32Minute;
timeinfo.tm_sec = rtc_datetime.u32Second;
// Convert to timestamp
time_t t;
if (_rtc_maketime(&timeinfo, &t, RTC_FULL_LEAP_YEAR_SUPPORT) == false) {
return 0;
}
return t;
}
/**
* @brief Main routine.
* @param None.
* @return None.
*/
int32_t main(void)
{
S_RTC_TIME_DATA_T sCurTime;
SYS_Init();
UART0_Init();
/* Unlock protected registers */
SYS_UnlockReg();
printf("\nNANO130 RTC Wakeup Demo \n");
/* Time Setting */
sCurTime.u32Year = 2014;
sCurTime.u32Month = 10;
sCurTime.u32Day = 1;
sCurTime.u32Hour = 0;
sCurTime.u32Minute = 0;
sCurTime.u32Second = 0;
sCurTime.u32DayOfWeek = RTC_TUESDAY;
sCurTime.u32TimeScale = RTC_CLOCK_24;
RTC_Open(&sCurTime);
/* Read curent RTC time */
RTC_GetDateAndTime(&sCurTime);
printf("Current Time:%d/%02d/%02d %02d:%02d:%02d\n",sCurTime.u32Year,sCurTime.u32Month,sCurTime.u32Day,sCurTime.u32Hour,sCurTime.u32Minute,sCurTime.u32Second);
/* Enable RTC alarm for 1 minute to update RTC time */
RTC_DISABLE_TICK_WAKEUP(); /* RTC tick shouldn't wake up CPU */
planNextRTCInterrupt(&sCurTime);
_Wakeup_Flag = 0;
while(1)
{
printf("\nGoing to Power Down...\n");
while(!(UART0->FSR & UART_FSR_TE_F_Msk)) ; /* waits for message send out */
/* Enter power down mode */
Enter_PowerDown();
printf("Program resume...\n");
if (_Wakeup_Flag == 1)
{
_Wakeup_Flag = 0;
printf("System Wakeup success!! \n");
}
}
}
void RTCUtils_GetDateTime(RTCUtils_DateTime_t *dateTime) {
S_RTC_TIME_DATA_T rtcData;
uint32_t primask;
// Atomic (RTC can't be closed)
if(!RTCUtils_isRTCOpen) {
return;
}
// Grab RTC data (protect against concurrent SetDateTime)
primask = Thread_IrqDisable();
RTC_GetDateAndTime(&rtcData);
Thread_IrqRestore(primask);
// Populate dateTime
dateTime->year = rtcData.u32Year - 2000;
dateTime->month = rtcData.u32Month;
dateTime->day = rtcData.u32Day;
dateTime->dayOfWeek = rtcData.u32DayOfWeek;
dateTime->hour = rtcData.u32Hour;
dateTime->minute = rtcData.u32Minute;
dateTime->second = rtcData.u32Second;
}
/**
* @brief Main routine.
* @param None.
* @return None.
*/
int32_t main(void)
{
S_RTC_TIME_DATA_T sCurTime;
SYS_Init();
UART0_Init();
DEBUG_MSG("\nNANO130 NuTiny EVB Demo Program V1.0.0\n");
DEBUG_MSG("[Power Down Demo]\n");
/* Unlock protected registers */
SYS_UnlockReg();
/* Time Setting */
sCurTime.u32Year = 2013;
sCurTime.u32Month = 10;
sCurTime.u32Day = 15;
sCurTime.u32Hour = 0;
sCurTime.u32Minute = 0;
sCurTime.u32Second = 0;
sCurTime.u32DayOfWeek = RTC_TUESDAY;
sCurTime.u32TimeScale = RTC_CLOCK_24;
RTC_Open(&sCurTime);
DEBUG_MSG("RTC Init. complete!\n");
/* Do LCD Initializaton */
LCD_Open(LCD_C_TYPE, 4, LCD_BIAS_THIRD, LCD_FREQ_DIV64, LCD_CPVOl_3V);
LCD_EnableDisplay();
DEBUG_MSG("LCD Init. complete!\n");
/* Start displaying on LCD */
LCDLIB_SetSymbol(2, 27, 1);
CLK_SysTickDelay(335000);
textticker("*** NUVOTON NANO130 ***", 335000);
CLK_SysTickDelay(335000);
LCDLIB_Printf(0, "NUVOTON");
LCD_EnableBlink(250);
CLK_SysTickDelay(335000);
CLK_SysTickDelay(335000);
CLK_SysTickDelay(335000);
CLK_SysTickDelay(335000);
CLK_SysTickDelay(335000);
LCD_DisableBlink();
/* Read curent RTC time */
RTC_GetDateAndTime(&sCurTime);
DEBUG_MSG("Current Time:%d/%02d/%02d %02d:%02d:%02d\n",sCurTime.u32Year,sCurTime.u32Month,sCurTime.u32Day,sCurTime.u32Hour,sCurTime.u32Minute,sCurTime.u32Second);
/* Display RTC time */
showTime(sCurTime.u32Hour, sCurTime.u32Minute);
DEBUG_MSG("Start MAIN loop.\n");
while(1)
{
textticker("*** GOING TO POWER DOWN ***", 335000);
DEBUG_MSG("Going to Power Down...\n");
#ifdef __DEBUG_MSG
while(!(UART1->FSR & UART_FSR_TE_F)) ; /* waits for message send out */
#endif
/* Enter power down mode */
/* This sample will not wake up*/
Enter_PowerDown();
DEBUG_MSG("Program resume...\n");
if (_Wakeup_Flag == 1)
{
_Wakeup_Flag = 0;
textticker("*** WAKE UP ***", 335000);
CLK_SysTickDelay(335000);
CLK_SysTickDelay(335000);
CLK_SysTickDelay(335000);
}
};
}
