void RTC_Alarm_IRQHandler()
{
if(RTC_GetITStatus(RTC_IT_ALRA) != RESET)
{
//RTC_AlarmCmd(RTC_Alarm_A, ENABLE);
PWR_RTCAccessCmd(ENABLE); // Доступ в RTC
RTC_ClearITPendingBit(RTC_IT_ALRA);
RTC_ClearFlag(RTC_FLAG_ALRAF);
PWR_RTCAccessCmd(DISABLE);
EXTI_ClearITPendingBit(EXTI_Line17);
//OLED_DrawString_fast(0,0,"alarm",10);
}
/////////////////////////?????????????????????????????????????????????????????????????????????????????????????
if(RTC_GetFlagStatus(RTC_FLAG_ALRAF) != RESET)
{
PWR_RTCAccessCmd(ENABLE);
RTC_ClearFlag(RTC_FLAG_ALRAF);
PWR_RTCAccessCmd(DISABLE);
//f_WakeupToAlarm=1;
curent_cmd = 5;
}
/////////////////////////
}
/**
* @brief Enters STANDBY mode, RTC Alarm within 3 second or an external RESET
* will wake-up the system from STANDBY
* @param None
* @retval None
*/
static void EnterSTANDBYMode(void)
{
RTC_AlarmTypeDef RTC_AlarmStructure;
RTC_TimeTypeDef RTC_TimeStructure;
/* Disable the Alarm A */
RTC_AlarmCmd(RTC_Alarm_A, DISABLE);
/* Get the current time */
RTC_GetTime(RTC_Format_BIN, &RTC_TimeStructure);
/* Set the alarm to current time + 3s */
RTC_AlarmStructure.RTC_AlarmTime.RTC_H12 = RTC_TimeStructure.RTC_H12;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours = RTC_TimeStructure.RTC_Hours;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes = RTC_TimeStructure.RTC_Minutes;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = (RTC_TimeStructure.RTC_Seconds + 0x3) % 60;
RTC_AlarmStructure.RTC_AlarmDateWeekDay = 31;
RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date;
RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_DateWeekDay | RTC_AlarmMask_Hours | RTC_AlarmMask_Minutes;
RTC_SetAlarm(RTC_Format_BIN, RTC_Alarm_A, &RTC_AlarmStructure);
/* Enable RTC Alarm A Interrupt: this Interrupt will wake-up the system from
STANDBY mode (RTC Alarm IT not enabled in NVIC) */
RTC_ITConfig(RTC_IT_ALRA, ENABLE);
/* Enable the Alarm A */
RTC_AlarmCmd(RTC_Alarm_A, ENABLE);
/* Clear RTC Alarm Flag */
RTC_ClearFlag(RTC_FLAG_ALRAF);
/* Request to enter STANDBY mode (Wake Up flag is cleared in PWR_EnterSTANDBYMode function) */
PWR_EnterSTANDBYMode();
}
/**
* @brief This function handles RTC Tamper and Time Stamp interrupts requests.
* @param None
* @retval None
*/
void TAMP_STAMP_IRQHandler(void)
{
if(RTC_GetFlagStatus(RTC_FLAG_TAMP1F) != RESET)
{
/* Tamper 1 detection event occurred */
/* Check if RTC Backup Data registers are cleared */
if(IsBackupRegReset() == 0)
{
/* OK, RTC Backup Data registers are reset as expected */
/* Toggle LED2 */
STM_EVAL_LEDToggle(LED2);
}
else
{
/* RTC Backup Data registers are not reset */
/* Toggle LED4 */
STM_EVAL_LEDToggle(LED4);
}
/* Clear Tamper 1 pin Event pending flag */
RTC_ClearFlag(RTC_FLAG_TAMP1F);
/* Disable Tamper pin 1 */
RTC_TamperCmd(RTC_Tamper_1, DISABLE);
/* Enable Tamper pin */
RTC_TamperCmd(RTC_Tamper_1, ENABLE);
}
}
void test(void)
{
//Reads data from the specified RTC Backup data Register.
//入侵检测
if (RTC_ReadBackupRegister(RTC_BKP_DR0) != 0x32F2)
{
/* RTC configuration */
RTC_Config();
/* Configure the time&date register */
RTC_TimeRegulate();
}
else
{
/* Enable the PWR clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Allow access to RTC */
PWR_BackupAccessCmd(ENABLE);
/* Wait for RTC APB registers synchronisation */
RTC_WaitForSynchro();
/* Clear the RTC Alarm Flag */
RTC_ClearFlag(RTC_FLAG_ALRAF);
/* Clear the EXTI Line 17 Pending bit (Connected internally to RTC Alarm) */
EXTI_ClearITPendingBit(EXTI_Line17);
}
while (1);
}
void HAL_RTC_Set_UnixAlarm(time_t value)
{
RTC_AlarmTypeDef RTC_AlarmStructure;
time_t alarm_time = HAL_RTC_Get_UnixTime() + value;
struct tm *alarm_time_tm;
alarm_time_tm = localtime(&alarm_time);
/* Disable the Alarm A */
RTC_AlarmCmd(RTC_Alarm_A, DISABLE);
RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours = alarm_time_tm->tm_hour;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes = alarm_time_tm->tm_min;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = alarm_time_tm->tm_sec;
RTC_AlarmStructure.RTC_AlarmDateWeekDay = alarm_time_tm->tm_mday;
RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date;
RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_None;
/* Configure the RTC Alarm A register */
RTC_SetAlarm(RTC_Format_BIN, RTC_Alarm_A, &RTC_AlarmStructure);
/* Enable the RTC Alarm A Interrupt */
RTC_ITConfig(RTC_IT_ALRA, ENABLE);
/* Enable the Alarm A */
RTC_AlarmCmd(RTC_Alarm_A, ENABLE);
/* Clear RTC Alarm Flag */
RTC_ClearFlag(RTC_FLAG_ALRAF);
}
/**
* @brief RTC Tamper Configuration..
* @param None
* @retval None
*/
static void RTC_TamperConfig(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* EXTI configuration *********************************************************/
EXTI_ClearITPendingBit(EXTI_Line19);
EXTI_InitStructure.EXTI_Line = EXTI_Line19;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Enable RTC_IRQn */
NVIC_InitStructure.NVIC_IRQChannel = RTC_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* determines the number of active pulse for the specific level */
RTC_TamperFilterConfig(RTC_TamperFilter_2Sample);
/* Determines the frequency at which each of the tamper inputs are sampled */
RTC_TamperSamplingFreqConfig(RTC_TamperSamplingFreq_RTCCLK_Div32768);
RTC_TamperPullUpCmd(DISABLE);
/* Select the tamper 1 with High level */
RTC_TamperTriggerConfig(RTC_Tamper_1, RTC_TamperTrigger_LowLevel );
/* Clear tamper 1 falg */
RTC_ClearFlag(RTC_FLAG_TAMP1F);
}
void TM_RTC_DisableAlarm(TM_RTC_Alarm_t Alarm) {
switch (Alarm) {
case TM_RTC_Alarm_A:
/* Disable Alarm A */
RTC_AlarmCmd(RTC_Alarm_A, DISABLE);
/* Disable Alarm A interrupt */
RTC_ITConfig(RTC_IT_ALRA, DISABLE);
/* Clear Alarm A pending bit */
RTC_ClearFlag(RTC_IT_ALRA);
break;
case TM_RTC_Alarm_B:
/* Disable Alarm B */
RTC_AlarmCmd(RTC_Alarm_B, DISABLE);
/* Disable Alarm B interrupt */
RTC_ITConfig(RTC_IT_ALRB, DISABLE);
/* Clear Alarm B pending bit */
RTC_ClearFlag(RTC_IT_ALRB);
break;
default:
break;
}
/* Clear RTC Alarm pending bit */
EXTI_ClearITPendingBit(EXTI_Line17);
/* Configure EXTI 17 as interrupt */
EXTI_InitStruct.EXTI_Line = EXTI_Line17;
EXTI_InitStruct.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStruct.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStruct.EXTI_LineCmd = ENABLE;
/* Initialite Alarm EXTI interrupt */
EXTI_Init(&EXTI_InitStruct);
/* Configure the RTC Alarm Interrupt */
NVIC_InitStruct.NVIC_IRQChannel = RTC_Alarm_IRQn;
NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = RTC_PRIORITY;
NVIC_InitStruct.NVIC_IRQChannelSubPriority = RTC_ALARM_SUBPRIORITY;
NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
/* Initialize RTC Alarm Interrupt */
NVIC_Init(&NVIC_InitStruct);
}
/*******************************************************************************
* Function Name : main
* Description : Main program.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
debug();
#endif
/* Clock configuration */
RCC_Configuration();
/* Enable PWR and BKP clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
/* GPIO configuration */
GPIO_Configuration();
/* Configure EXTI Line to generate an interrupt on falling edge */
EXTI_Configuration();
/* Configure RTC clock source and prescaler */
RTC_Configuration();
/* NVIC configuration */
NVIC_Configuration();
/* Configure the SysTick to generate an interrupt each 1 millisecond */
SysTick_Configuration();
/* Turn on led connected to GPIO_LED Pin6 */
GPIO_SetBits(GPIO_LED, GPIO_Pin_6);
while (1)
{
/* Insert 1.5 second delay */
Delay(1500);
/* Wait till RTC Second event occurs */
RTC_ClearFlag(RTC_FLAG_SEC);
while(RTC_GetFlagStatus(RTC_FLAG_SEC) == RESET);
/* Alarm in 3 second */
RTC_SetAlarm(RTC_GetCounter()+ 3);
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
/* Turn off led connected to GPIO_LED Pin6 */
GPIO_ResetBits(GPIO_LED, GPIO_Pin_6);
/* Request to enter STOP mode with regulator in low power mode*/
PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
/* At this stage the system has resumed from STOP mode -------------------*/
/* Turn on led connected to GPIO_LED Pin6 */
GPIO_SetBits(GPIO_LED, GPIO_Pin_6);
/* Configures system clock after wake-up from STOP: enable HSE, PLL and select
PLL as system clock source (HSE and PLL are disabled in STOP mode) */
SYSCLKConfig_STOP();
}
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/* Setup the microcontroller system. Initialize the Embedded Flash Interface,
initialize the PLL and update the SystemFrequency variable. */
SystemInit();
/* Initialize LEDs and Key Button mounted on STM3210X-EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_PBInit(Button_KEY, Mode_EXTI);
/* Enable PWR and BKP clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
/* Configure EXTI Line to generate an interrupt on falling edge */
EXTI_Configuration();
/* Configure RTC clock source and prescaler */
RTC_Configuration();
/* NVIC configuration */
NVIC_Configuration();
/* Configure the SysTick to generate an interrupt each 1 millisecond */
SysTick_Configuration();
/* Turn on LED1 */
STM_EVAL_LEDOn(LED1);
while (1)
{
/* Insert 1.5 second delay */
Delay(1500);
/* Wait till RTC Second event occurs */
RTC_ClearFlag(RTC_FLAG_SEC);
while(RTC_GetFlagStatus(RTC_FLAG_SEC) == RESET);
/* Alarm in 3 second */
RTC_SetAlarm(RTC_GetCounter()+ 3);
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
/* Turn off LED1 */
STM_EVAL_LEDOff(LED1);
/* Request to enter STOP mode with regulator in low power mode*/
PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
/* At this stage the system has resumed from STOP mode -------------------*/
/* Turn on LED1 */
STM_EVAL_LEDOn(LED1);
/* Configures system clock after wake-up from STOP: enable HSE, PLL and select
PLL as system clock source (HSE and PLL are disabled in STOP mode) */
SYSCLKConfig_STOP();
}
}
/*******************************************************************************
* Function Name : RTC_IRQHandler
* Description : This function handles RTC global interrupt request.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void RTC_IRQHandler(void)
{
if((GPIOC->IDR)&(0x00001000)) { GPIOC->BRR |= 0x00001000; }
else { GPIOC->BSRR |= 0x00001000; }
RTC_ClearFlag(RTC_IT_SEC);
}
void RTC_WKUP_IRQHandler(void)
{
if (RTC_GetITStatus(RTC_IT_WUT) != RESET) {
EXTI_ClearITPendingBit(EXTI_Line22);
RTC_ClearITPendingBit(RTC_IT_WUT);
RTC_ClearFlag(RTC_FLAG_WUTF);
}
}
void rtc_timer_start(u32 alarmValue)
{
//enable BKP and PWR, Clock
RCC_APB1PeriphClockCmd(RCC_APB1Periph_BKP|RCC_APB1Periph_PWR , ENABLE);
// RTC clock source configuration
PWR_BackupAccessCmd(ENABLE); //Allow access to BKP Domain
RCC_LSEConfig(RCC_LSE_ON); //Enable LSE OSC
while(RCC_GetFlagStatus(RCC_FLAG_LSERDY)==RESET); //Wait till LSE is ready
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE); //Select the RTC Clock Source
RCC_RTCCLKCmd(ENABLE); //enable RTC
// RTC configuration
// Wait for RTC APB registers synchronisation
RTC_WaitForSynchro();
RTC_SetPrescaler(0); //Set the RTC time base to 30.5us
RTC_WaitForLastTask(); //Wait until last write operation on RTC registers has finished
//Set the RTC time counter to 0
RTC_SetCounter(0);
RTC_WaitForLastTask();
// Set the RTC time alarm(the length of slot)
RTC_SetAlarm(alarmValue);
RTC_WaitForLastTask();
//interrupt when reach alarm value
RTC_ClearFlag(RTC_IT_ALR);
RTC_ITConfig(RTC_IT_ALR, ENABLE);
//Configures EXTI line 17 to generate an interrupt on rising edge(alarm interrupt to wakeup board)
EXTI_ClearITPendingBit(EXTI_Line17);
EXTI_InitTypeDef EXTI_InitStructure;
EXTI_InitStructure.EXTI_Line = EXTI_Line17;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
//Configure RTC global interrupt:
//Configure NVIC: Preemption Priority = 1 and Sub Priority = 1
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = RTC_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
//Configure RTC Alarm interrupt:
//Configure NVIC: Preemption Priority = 0 and Sub Priority = 1
NVIC_InitStructure.NVIC_IRQChannel = RTCAlarm_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
/****************************************************************************
* 名 称：void clock_ini(void)
* 功 能：时钟初始化函数
* 入口参数：无
* 出口参数：无
* 说 明：
* 调用方法：
****************************************************************************/
void clock_ini(void)
{
#if defined (STOP_Mode)
if(BKP_CheckLOCK_RTC() != BKP_RTC_Flag){
RTC_Configuration();
RTC_InitStructure.RTC_AsynchPrediv = AsynchPrediv;
RTC_InitStructure.RTC_SynchPrediv = SynchPrediv;
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
while(RTC_Init(&RTC_InitStructure) == ERROR) {}
Set_Time(time);
BKP_LOCK_RTC();
}else{
while(RCC_GetFlagStatus(RCC_FLAG_PORRST) == RESET) {}
while(RCC_GetFlagStatus(RCC_FLAG_PINRST) == RESET) {}
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
PWR_RTCAccessCmd(ENABLE);
RTC_WaitForSynchro();
}
RTC_Alarm_Exit();
RTC_NVIC_Configuration();
RTC_ClearFlag(RTC_FLAG_ALRAF);
PWR_ClearFlag(PWR_FLAG_WU);
#elif defined (TANDBY_Mode)
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
PWR_RTCAccessCmd(ENABLE);
PWR_ClearFlag(PWR_FLAG_WU);
if(PWR_GetFlagStatus(PWR_FLAG_SB) != RESET) {
PWR_ClearFlag(PWR_FLAG_SB);
RTC_WaitForSynchro();
}else {
RTC_Configuration();
RTC_InitStructure.RTC_AsynchPrediv = AsynchPrediv;
RTC_InitStructure.RTC_SynchPrediv = SynchPrediv;
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
while(RTC_Init(&RTC_InitStructure) == ERROR) {}
Set_Time(time);
RTC_ClearFlag(RTC_FLAG_ALRAF);
}
#endif
}
static void RtcClearStatus( void )
{
/* Clear RTC Alarm Flag */
RTC_ClearFlag(RTC_FLAG_ALRAF);
/* Enable RTC Alarm A Interrupt */
RTC_ITConfig( RTC_IT_ALRA, DISABLE );
/* Enable the Alarm A */
RTC_AlarmCmd( RTC_Alarm_A, DISABLE );
}
void RTC_WKUP_IRQHandler(void)
{
if(RTC_GetITStatus(RTC_IT_WUT) != RESET) {
EXTI_ClearITPendingBit(EXTI_Line20); //OK
PWR_RTCAccessCmd(ENABLE);
RTC_ClearITPendingBit(RTC_IT_WUT);
RTC_ClearFlag(RTC_FLAG_WUTF);
PWR_RTCAccessCmd(DISABLE);
l++;
printf("RTC Interrupt executed: %d \n\r", l);
}
}
void radiotimer_schedule(uint16_t offset) {
RTC_ITConfig(RTC_IT_ALR, DISABLE);
//need to disable radio also in case that a radio interrupt is happening
// Set the RTC alarm(RTC timer will alarm at next state of slot)
RTC_SetAlarm(offset);
RTC_WaitForLastTask();
//set radiotimer irpstatus
radiotimer_vars.overflowORcompare = RADIOTIMER_COMPARE;
RTC_ClearFlag(RTC_IT_ALR);
RTC_ITConfig(RTC_IT_ALR, ENABLE);
}
INTFUNC void RTC_IRQHandler(void)
{
// Blinking
if (GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_15) == Bit_RESET) {
GPIO_WriteBit(GPIOA, GPIO_Pin_15, Bit_SET);
GPIO_WriteBit(GPIOA, GPIO_Pin_13, Bit_RESET);
} else {
GPIO_WriteBit(GPIOA, GPIO_Pin_15, Bit_RESET);
GPIO_WriteBit(GPIOA, GPIO_Pin_13, Bit_SET);
}
RTC_ClearFlag(RTC_IT_SEC);
}
INTFUNC void RTC_IRQHandler(void)
{
// Blinking
if((GPIOC->IDR)&(0x00001000)) {
// clear
GPIOC->BRR |= 0x00001000;
} else {
// set
GPIOC->BSRR |= 0x00001000;
}
RTC_ClearFlag(RTC_IT_SEC);
}
/*!
* \brief PIOS_IAP_Init - performs required initializations for iap module.
* \param none.
* \return none.
* \retval none.
*
* Created: Sep 8, 2010 10:10:48 PM by joe
*/
void PIOS_IAP_Init( void )
{
/* Enable CRC clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_CRC, ENABLE);
/* Enable PWR and BKP clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Enable write access to Backup domain */
PWR_BackupAccessCmd(ENABLE);
/* Clear Tamper pin Event(TE) pending flag */
RTC_ClearFlag(RTC_FLAG_TAMP1F);
}
void radiotimer_cancel() {
RTC_ITConfig(RTC_IT_ALR, DISABLE);
//need to disable radio also in case that a radio interrupt is happening
// set RTC alarm (slotlength)
RTC_SetAlarm(radiotimer_vars.currentSlotPeriod);
RTC_WaitForLastTask();
//set radiotimer irpstatus
radiotimer_vars.overflowORcompare = RADIOTIMER_OVERFLOW;
RTC_ClearFlag(RTC_IT_ALR);
RTC_ITConfig(RTC_IT_ALR, ENABLE);
}
void RTC_STOP_WakeUp(void)
{
/* Enable PWR and BKP clocks */
/* PWR时钟（电源控制）与BKP时钟（RTC后备寄存器）使能 */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
/* Allow access to BKP Domain */
PWR_BackupAccessCmd(ENABLE);
/* RTC clock source configuration ----------------------------------------*/
/* Reset Backup Domain */
BKP_DeInit();
/* Enable LSE OSC */
RCC_LSEConfig(RCC_LSE_ON);
/* Wait till LSE is ready */
while(RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
{
}
/* Select the RTC Clock Source */
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
/* Enable the RTC Clock */
RCC_RTCCLKCmd(ENABLE);
/* RTC configuration -----------------------------------------------------*/
/* Wait for RTC APB registers synchronisation */
RTC_WaitForSynchro();
/* Set the RTC time base to 1s */
RTC_SetPrescaler(32767);
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
/* Enable the RTC Alarm interrupt */
RTC_ITConfig(RTC_IT_ALR, ENABLE);
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
RTC_ClearFlag(RTC_FLAG_SEC);
while(RTC_GetFlagStatus(RTC_FLAG_SEC) == RESET);
/* Alarm in 5 second */
RTC_SetAlarm(RTC_GetCounter()+ 5);
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
}
/**
* @brief This function handles External line 0 interrupt request.
* @param None
* @retval None
*/
void EXTI0_IRQHandler(void)
{
/* Clear the TimeStamp registers */
if(EXTI_GetITStatus(WAKEUP_BUTTON_EXTI_LINE) != RESET)
{
/* Turn LED1 ON and LED2 OFF */
STM_EVAL_LEDOn(LED1);
STM_EVAL_LEDOff(LED2);
/* Clear The TSF Flag (Clear TimeStamp Registers) */
RTC_ClearFlag(RTC_FLAG_TSF);
printf("\r\n******************** TimeStamp Event Cleared ********************");
/* Clear the Wakeup Button EXTI line pending bit */
EXTI_ClearITPendingBit(WAKEUP_BUTTON_EXTI_LINE);
}
}
void radiotimer_setPeriod(uint16_t period) {
RTC_ITConfig(RTC_IT_ALR, DISABLE);
//need to disable radio also in case that a radio interrupt is happening when set Alarm value
//Reset RTC Counter to begin a new slot
RTC_SetAlarm(period);
RTC_WaitForLastTask();
radiotimer_vars.currentSlotPeriod = period;
//set radiotimer irpstatus
radiotimer_vars.overflowORcompare = RADIOTIMER_OVERFLOW;
RTC_ClearFlag(RTC_IT_ALR);
RTC_ITConfig(RTC_IT_ALR, ENABLE);
}
void Set_Alarm_Time(uint8_t Sec)
{
uint32_t sec_time;
RTC_AlarmCmd(RTC_Alarm_A, DISABLE);
sec_time = Get_Time().Hour*3600 + Get_Time().Min*60 + Get_Time().Sec + Sec;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours = (sec_time / 3600) % 24;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes = (sec_time % 3600) / 60;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = sec_time % 60;
RTC_AlarmStructure.RTC_AlarmDateWeekDay = Get_Time().Day + (sec_time > 86400 ? 1 : 0);
RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date;
RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_None;
RTC_SetAlarm(RTC_Format_BIN, RTC_Alarm_A, &RTC_AlarmStructure);
RTC_ITConfig(RTC_IT_ALRA, ENABLE);
RTC_AlarmCmd(RTC_Alarm_A, ENABLE);
RTC_ClearFlag(RTC_FLAG_ALRAF);
PWR_ClearFlag(PWR_FLAG_WU);
}
//alarm A interrupt handler
//when alarm occurs, clear all the interrupt bits and flags
//then set the flag to play mp3
void RTC_Alarm_IRQHandler(void)
{
//resets alarm flags and sets flag to play mp3
if(RTC_GetITStatus(RTC_IT_ALRA) != RESET)
{
RTC_ClearFlag(RTC_FLAG_ALRAF);
RTC_ClearITPendingBit(RTC_IT_ALRA);
EXTI_ClearITPendingBit(EXTI_Line17);
interruptOccurred = 1;
mp3PlayingFlag = 0;
GPIO_WriteBit(GPIOE, GPIO_Pin_6, Bit_RESET);
}
}
void RTC_Time_Init(void)
{
if (RTC_ReadBackupRegister(RTC_BKP_DR0) != 0x32F2)
{
/* RTC configuration */
RTC_Config();
/* Configure the RTC data register and RTC prescaler */
RTC_InitStructure.RTC_AsynchPrediv = AsynchPrediv;
RTC_InitStructure.RTC_SynchPrediv = SynchPrediv;
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
/* Check on RTC init */
if (RTC_Init(&RTC_InitStructure) == ERROR)
{
MessageBox_Show("Prescaler Config failed", "RTC Error", true, false);
}
/* Configure the time register */
RTC_TimeRegulate(0,0,0);
}
else
{
/* Check if the Power On Reset flag is set */
if (RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
{
}
/* Check if the Pin Reset flag is set */
else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET)
{
}
/* Enable the PWR clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Allow access to RTC */
PWR_BackupAccessCmd(ENABLE);
/* Wait for RTC APB registers synchronisation */
RTC_WaitForSynchro();
/* Clear the RTC Alarm Flag */
RTC_ClearFlag(RTC_FLAG_ALRAF);
}
}
/**
* @brief This function handles External lines 9 to 5 interrupt request.
* @param None
* @retval None
*/
void EXTI15_10_IRQHandler(void)
{
if(EXTI_GetITStatus(KEY_BUTTON_EXTI_LINE) != RESET)
{
/* Clear the SEL Button EXTI line pending bit */
EXTI_ClearITPendingBit(KEY_BUTTON_EXTI_LINE);
/* Disable the Alarm A */
RTC_AlarmCmd(RTC_Alarm_A, DISABLE);
/* Disable RTC Alarm A Interrupt */
RTC_ITConfig(RTC_IT_ALRA, DISABLE);
/* Clear Power WakeUp (CWUF) pending flag */
PWR_ClearFlag(PWR_FLAG_WU);
RTC_GetTime(RTC_Format_BIN, &RTC_TimeStructure);
/* Set the alarm to current time + 5s */
RTC_AlarmStructure.RTC_AlarmTime.RTC_H12 = RTC_TimeStructure.RTC_H12;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours = RTC_TimeStructure.RTC_Hours;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes = RTC_TimeStructure.RTC_Minutes;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = (RTC_TimeStructure.RTC_Seconds + 0x5) % 60;
RTC_AlarmStructure.RTC_AlarmDateWeekDay = 0x31;
RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date;
RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_DateWeekDay | RTC_AlarmMask_Hours | RTC_AlarmMask_Minutes;
RTC_SetAlarm(RTC_Format_BIN, RTC_Alarm_A, &RTC_AlarmStructure);
/* Enable RTC Alarm A Interrupt: this Interrupt will wake-up the system from
STANDBY mode (RTC Alarm IT not enabled in NVIC) */
RTC_ITConfig(RTC_IT_ALRA, ENABLE);
/* Enable the Alarm A */
RTC_AlarmCmd(RTC_Alarm_A, ENABLE);
/* Clear RTC Alarm Flag */
RTC_ClearFlag(RTC_FLAG_ALRAF);
/* Request to enter STANDBY mode (Wake Up flag is cleared in PWR_EnterSTANDBYMode function) */
PWR_EnterSTANDBYMode();
}
}
void platform_mcu_enter_standby(uint32_t secondsToWakeup)
{
platform_rtc_time_t time;
uint32_t currentSecond;
RTC_AlarmTypeDef RTC_AlarmStructure;
PWR_WakeUpPinCmd(ENABLE);
if(secondsToWakeup == MICO_WAIT_FOREVER)
PWR_EnterSTANDBYMode();
platform_log("Wake up in %d seconds", secondsToWakeup);
platform_rtc_get_time(&time);
currentSecond = time.hr*3600 + time.min*60 + time.sec;
currentSecond += secondsToWakeup;
RTC_AlarmStructure.RTC_AlarmTime.RTC_H12 = RTC_HourFormat_24;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours = currentSecond/3600%24;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes = currentSecond/60%60;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = currentSecond%60;
RTC_AlarmStructure.RTC_AlarmDateWeekDay = 0x31;
RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date;
RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_DateWeekDay ;
RTC_AlarmCmd(RTC_Alarm_A, DISABLE);
/* Disable the Alarm A */
RTC_ITConfig(RTC_IT_ALRA, DISABLE);
/* Clear RTC Alarm Flag */
RTC_ClearFlag(RTC_FLAG_ALRAF);
RTC_SetAlarm(RTC_Format_BIN, RTC_Alarm_A, &RTC_AlarmStructure);
/* Enable RTC Alarm A Interrupt: this Interrupt will wake-up the system from
STANDBY mode (RTC Alarm IT not enabled in NVIC) */
RTC_ITConfig(RTC_IT_ALRA, ENABLE);
/* Enable the Alarm A */
RTC_AlarmCmd(RTC_Alarm_A, ENABLE);
PWR_EnterSTANDBYMode();
}
void EXTI9_5_IRQHandler(void)
#endif
{
if(EXTI_GetITStatus(SEL_BUTTON_EXTI_LINE) != RESET)
{
/* Clear the SEL Button EXTI line pending bit */
EXTI_ClearITPendingBit(SEL_BUTTON_EXTI_LINE);
/* Turn on LED1 */
STM_EVAL_LEDOn(LED1);
/* Disable the Alarm A */
RTC_AlarmCmd(RTC_Alarm_A, DISABLE);
RTC_GetTime(RTC_Format_BCD, &RTC_TimeStructure);
/* Set the alarm X+5s */
RTC_AlarmStructure.RTC_AlarmTime.RTC_H12 = RTC_TimeStructure.RTC_H12;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours = RTC_TimeStructure.RTC_Hours;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes = RTC_TimeStructure.RTC_Minutes;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = (RTC_TimeStructure.RTC_Seconds + 0x5) % 60;
RTC_AlarmStructure.RTC_AlarmDateWeekDay = 0x31;
RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date;
RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_DateWeekDay;
RTC_SetAlarm(RTC_Format_BCD, RTC_Alarm_A, &RTC_AlarmStructure);
/* Enable RTC Alarm A Interrupt */
RTC_ITConfig(RTC_IT_ALRA, ENABLE);
/* Enable the Alarm A */
RTC_AlarmCmd(RTC_Alarm_A, ENABLE);
/* Clear RTC Alarm A flag */
RTC_ClearFlag(RTC_FLAG_ALRAF);
/* Clear WakeUp flag */
PWR_ClearFlag(PWR_FLAG_WU);
/* Request to enter STANDBY mode (Wake Up flag is cleared in PWR_EnterSTANDBYMode function) */
PWR_EnterSTANDBYMode();
}
}
/*
* Turn of timer tick and schedule wakeup
* after given ticks.
*/
void p_pos_powerTickSuspend(UVAR_t ticks)
{
/*
* First, systick off.
*/
SysTick->CTRL &= ~(SysTick_CTRL_TICKINT_Msk |
SysTick_CTRL_ENABLE_Msk);
/*
* Then, schedule RTC wakeup after ticks have passed.
*/
if (ticks == INFINITE)
return;
if (ticks / HZ > 65536) // max 18 hours
ticks = 65536 * HZ;
ticks -= PORTCFG_POWER_TICKLESS_SAFETY_MARGIN; // oscillator starts up 2 ms
RTC_WakeUpCmd(DISABLE);
if (ticks <= MS(10000)) {
// Wakeup timer ticks at 32768 / 8 = 4096 Hz
RTC_WakeUpClockConfig(RTC_WakeUpClock_RTCCLK_Div8);
RTC_SetWakeUpCounter(4096 * ticks / HZ);
}
else {
// Wakeup timer ticks at 1 Hz
RTC_WakeUpClockConfig(RTC_WakeUpClock_CK_SPRE_16bits);
RTC_SetWakeUpCounter(ticks / HZ);
}
EXTI_ClearITPendingBit(EXTI_Line22);
RTC_ITConfig(RTC_IT_WUT, ENABLE);
RTC_ClearITPendingBit(RTC_IT_WUT);
RTC_ClearFlag(RTC_FLAG_WUTF);
NVIC_EnableIRQ(RTC_WKUP_IRQn);
startTime = rtcTimeNow();
RTC_WakeUpCmd(ENABLE);
}
