/**
* @brief Configures the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
* @param hrtc: RTC handle
* @param CalibOutput : Select the Calibration output Selection .
* This parameter can be one of the following values:
* @arg RTC_CALIBOUTPUT_512HZ: A signal has a regular waveform at 512Hz.
* @arg RTC_CALIBOUTPUT_1HZ: A signal has a regular waveform at 1Hz.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetCalibrationOutPut(RTC_HandleTypeDef* hrtc, uint32_t CalibOutput)
{
/* Check the parameters */
assert_param(IS_RTC_CALIB_OUTPUT(CalibOutput));
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Clear flags before config */
hrtc->Instance->CR &= (uint32_t)~RTC_CR_COSEL;
/* Configure the RTC_CR register */
hrtc->Instance->CR |= (uint32_t)CalibOutput;
__HAL_RTC_CALIBRATION_OUTPUT_ENABLE(hrtc);
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_OK;
}
/**
* @brief Deactivates TimeStamp.
* @param hrtc: RTC handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_DeactivateTimeStamp(RTC_HandleTypeDef *hrtc)
{
uint32_t tmpreg = 0;
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* In case of interrupt mode is used, the interrupt source must disabled */
__HAL_RTC_TIMESTAMP_DISABLE_IT(hrtc, RTC_IT_TS);
/* Get the RTC_CR register and clear the bits to be configured */
tmpreg = (uint32_t)(hrtc->Instance->CR & (uint32_t)~(RTC_CR_TSEDGE | RTC_CR_TSE));
/* Configure the Time Stamp TSEDGE and Enable bits */
hrtc->Instance->CR = (uint32_t)tmpreg;
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
hrtc->State = HAL_RTC_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_OK;
}
/**
* @brief ALARM A Event Callback in non blocking mode
* @note This function is called when RTC_ALARM interrupt took place, inside
* RTC_ALARM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
* a global variable "uwTick" used as application time base.
* @param hrtc : RTC handle
* @retval None
*/
void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
{
__IO uint32_t counter = 0U;
HAL_IncTick();
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Set the Initialization mode */
hrtc->Instance->ICSR = (uint32_t)RTC_INIT_MASK;
while((hrtc->Instance->ICSR & RTC_ICSR_INITF) == (uint32_t)RESET)
{
if(counter++ == (SystemCoreClock / 56U)) /* Timeout = ~ 1s */
{
break;
}
}
hrtc->Instance->DR = 0U;
hrtc->Instance->TR = 0U;
hrtc->Instance->ICSR &= (uint32_t)~RTC_ICSR_INIT;
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
}
/**
* @brief Sets wake up timer.
* @param hrtc: RTC handle
* @param WakeUpCounter: Wake up counter
* @param WakeUpClock: Wake up clock
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetWakeUpTimer(RTC_HandleTypeDef *hrtc, uint32_t WakeUpCounter, uint32_t WakeUpClock)
{
uint32_t tickstart = 0;
/* Check the parameters */
assert_param(IS_WAKEUP_CLOCK(WakeUpClock));
assert_param(IS_WAKEUP_COUNTER(WakeUpCounter));
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
__HAL_RTC_WAKEUPTIMER_DISABLE(hrtc);
tickstart = HAL_GetTick();
/* Wait till RTC WUTWF flag is set and if Time out is reached exit */
while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTWF) == RESET)
{
if((HAL_GetTick()-tickstart) > RTC_TIMEOUT_VALUE)
{
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
hrtc->State = HAL_RTC_STATE_TIMEOUT;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_TIMEOUT;
}
}
/* Clear the Wakeup Timer clock source bits in CR register */
hrtc->Instance->CR &= (uint32_t)~RTC_CR_WUCKSEL;
/* Configure the clock source */
hrtc->Instance->CR |= (uint32_t)WakeUpClock;
/* Configure the Wakeup Timer counter */
hrtc->Instance->WUTR = (uint32_t)WakeUpCounter;
/* Enable the Wakeup Timer */
__HAL_RTC_WAKEUPTIMER_ENABLE(hrtc);
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
hrtc->State = HAL_RTC_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_OK;
}
/**
* @brief Resume Tick increment.
* @note Enable the tick increment by Enabling RTC_WKUP interrupt.
* @param None
* @retval None
*/
void HAL_ResumeTick(void)
{
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(&hRTC_Handle);
/* Enable WAKE UP TIMER interrupt */
__HAL_RTC_WAKEUPTIMER_ENABLE_IT(&hRTC_Handle, RTC_IT_WUT);
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(&hRTC_Handle);
}
/**
* @brief Configures the RTC.
* @param None
* @retval None
*/
static void RTC_Config(void)
{
/* Enable Power Clock*/
__PWR_CLK_ENABLE();
/* Allow Access to RTC Backup domaine */
HAL_PWR_EnableBkUpAccess();
RtcHandle.Instance= RTC;
/* Check if the system was resumed from StandBy mode */
if (__HAL_PWR_GET_FLAG(PWR_FLAG_SB) != RESET)
{
/* Clear StandBy flag */
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(&RtcHandle);
/* Wait for RTC APB registers synchronisation (needed after start-up from Reset)*/
if (HAL_RTC_WaitForSynchro(&RtcHandle) != HAL_OK)
{
while(1);
}
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(&RtcHandle);
/* No need to configure the RTC as the RTC config(clock source, enable,
prescaler,...) are kept after wake-up from STANDBY */
}
else
{
/* Reset Backup Domaine */
__HAL_RCC_BACKUPRESET_FORCE();
__HAL_RCC_BACKUPRESET_RELEASE();
/* Set the RTC time base to 1s */
/* Configure RTC prescaler and RTC data registers as follows:
- Hour Format = Format 24
- Asynch Prediv = Value according to source clock
- Synch Prediv = Value according to source clock
- OutPut = Output Disable
- OutPutPolarity = High Polarity
- OutPutType = Open Drain */
RtcHandle.Init.HourFormat = RTC_HOURFORMAT_24;
RtcHandle.Init.AsynchPrediv = RTC_ASYNCH_PREDIV;
RtcHandle.Init.SynchPrediv = RTC_SYNCH_PREDIV;
RtcHandle.Init.OutPut = RTC_OUTPUT_DISABLE;
RtcHandle.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
RtcHandle.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
if(HAL_RTC_Init(&RtcHandle) != HAL_OK)
{
/* Initialization Error */
while(1);
}
}
}
/**
* @brief Resume Tick increment.
* @note Enable the tick increment by Enabling RTC ALARM interrupt.
* @retval None
*/
void HAL_ResumeTick(void)
{
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(&hRTC_Handle);
/* Enable RTC ALARM Update interrupt */
__HAL_RTC_ALARM_ENABLE_IT(&hRTC_Handle, RTC_IT_ALRA);
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(&hRTC_Handle);
}
/**
* @brief Sets the Smooth calibration parameters.
* @param hrtc: RTC handle
* @param SmoothCalibPeriod: Select the Smooth Calibration Period.
* This parameter can be can be one of the following values :
* @arg RTC_SMOOTHCALIB_PERIOD_32SEC: The smooth calibration periode is 32s.
* @arg RTC_SMOOTHCALIB_PERIOD_16SEC: The smooth calibration periode is 16s.
* @arg RTC_SMOOTHCALIB_PERIOD_8SEC: The smooth calibartion periode is 8s.
* @param SmoothCalibPlusPulses: Select to Set or reset the CALP bit.
* This parameter can be one of the following values:
* @arg RTC_SMOOTHCALIB_PLUSPULSES_SET: Add one RTCCLK puls every 2*11 pulses.
* @arg RTC_SMOOTHCALIB_PLUSPULSES_RESET: No RTCCLK pulses are added.
* @param SmouthCalibMinusPulsesValue: Select the value of CALM[8:0] bits.
* This parameter can be one any value from 0 to 0x000001FF.
* @note To deactivate the smooth calibration, the field SmoothCalibPlusPulses
* must be equal to SMOOTHCALIB_PLUSPULSES_RESET and the field
* SmouthCalibMinusPulsesValue mut be equal to 0.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetSmoothCalib(RTC_HandleTypeDef* hrtc, uint32_t SmoothCalibPeriod, uint32_t SmoothCalibPlusPulses, uint32_t SmouthCalibMinusPulsesValue)
{
uint32_t tickstart = 0;
/* Check the parameters */
assert_param(IS_RTC_SMOOTH_CALIB_PERIOD(SmoothCalibPeriod));
assert_param(IS_RTC_SMOOTH_CALIB_PLUS(SmoothCalibPlusPulses));
assert_param(IS_RTC_SMOOTH_CALIB_MINUS(SmouthCalibMinusPulsesValue));
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* check if a calibration is pending*/
if((hrtc->Instance->ISR & RTC_ISR_RECALPF) != RESET)
{
tickstart = HAL_GetTick();
/* check if a calibration is pending*/
while((hrtc->Instance->ISR & RTC_ISR_RECALPF) != RESET)
{
if((HAL_GetTick()-tickstart) > RTC_TIMEOUT_VALUE)
{
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_TIMEOUT;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_TIMEOUT;
}
}
}
/* Configure the Smooth calibration settings */
hrtc->Instance->CALR = (uint32_t)((uint32_t)SmoothCalibPeriod | (uint32_t)SmoothCalibPlusPulses | (uint32_t)SmouthCalibMinusPulsesValue);
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_OK;
}
/**
* @brief Initialize RTC block
*
* @note
* @param None
* @retval None
*/
static void Init_RTC(void)
{
/* Initialize the HW - 37Khz LSI being used*/
/* Enable the LSI clock */
__HAL_RCC_LSI_ENABLE();
/* Enable power module clock */
__PWR_CLK_ENABLE();
/* Enable acces to the RTC registers */
HAL_PWR_EnableBkUpAccess();
/**
* Write twice the value to flush the APB-AHB bridge
* This bit shall be written in the register before writing the next one
*/
HAL_PWR_EnableBkUpAccess();
/* Select LSI as RTC Input */
__HAL_RCC_RTC_CONFIG(RCC_RTCCLKSOURCE_LSI);
/* Enable RTC */
__HAL_RCC_RTC_ENABLE();
hrtc.Instance = RTC; /**< Define instance */
hrtc.Lock = HAL_UNLOCKED; /**< Initialize lock */
hrtc.State = HAL_RTC_STATE_READY; /**< Initialize state */
/**
* Bypass the shadow register
*/
HAL_RTCEx_EnableBypassShadow(&hrtc);
/**
* Set the Asynchronous prescaler
*/
hrtc.Init.AsynchPrediv = RTC_ASYNCH_PRESCALER;
hrtc.Init.SynchPrediv = RTC_SYNCH_PRESCALER;
HAL_RTC_Init(&hrtc);
/* Disable Write Protection */
__HAL_RTC_WRITEPROTECTION_DISABLE(&hrtc) ;
HAL_APP_RTC_Set_Wucksel(&hrtc, WUCKSEL_DIVIDER); /**< Tick timer is 55us */
/* Wait for LSI to be stable */
while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) == 0);
return;
}
/**
* @brief Sets the Coarse calibration parameters.
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
* the configuration information for RTC.
* @param CalibSign: Specifies the sign of the coarse calibration value.
* This parameter can be one of the following values :
* @arg RTC_CALIBSIGN_POSITIVE: The value sign is positive
* @arg RTC_CALIBSIGN_NEGATIVE: The value sign is negative
* @param Value: value of coarse calibration expressed in ppm (coded on 5 bits).
*
* @note This Calibration value should be between 0 and 63 when using negative
* sign with a 2-ppm step.
*
* @note This Calibration value should be between 0 and 126 when using positive
* sign with a 4-ppm step.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetCoarseCalib(RTC_HandleTypeDef* hrtc, uint32_t CalibSign, uint32_t Value)
{
/* Check the parameters */
assert_param(IS_RTC_CALIB_SIGN(CalibSign));
assert_param(IS_RTC_CALIB_VALUE(Value));
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Set Initialization mode */
if(RTC_EnterInitMode(hrtc) != HAL_OK)
{
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Set RTC state*/
hrtc->State = HAL_RTC_STATE_ERROR;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_ERROR;
}
else
{
/* Enable the Coarse Calibration */
__HAL_RTC_COARSE_CALIB_ENABLE(hrtc);
/* Set the coarse calibration value */
hrtc->Instance->CALIBR = (uint32_t)(CalibSign|Value);
/* Exit Initialization mode */
hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT;
}
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Change state */
hrtc->State = HAL_RTC_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_OK;
}
/**
* @brief Sets TimeStamp with Interrupt.
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
* the configuration information for RTC.
* @note This API must be called before enabling the TimeStamp feature.
* @param TimeStampEdge: Specifies the pin edge on which the TimeStamp is
* activated.
* This parameter can be one of the following values:
* @arg RTC_TIMESTAMPEDGE_RISING: the Time stamp event occurs on the
* rising edge of the related pin.
* @arg RTC_TIMESTAMPEDGE_FALLING: the Time stamp event occurs on the
* falling edge of the related pin.
* @param RTC_TimeStampPin: Specifies the RTC TimeStamp Pin.
* This parameter can be one of the following values:
* @arg RTC_TIMESTAMPPIN_DEFAULT: PC13 is selected as RTC TimeStamp Pin.
* @arg RTC_TIMESTAMPPIN_POS1: PI8 is selected as RTC TimeStamp Pin.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetTimeStamp_IT(RTC_HandleTypeDef *hrtc, uint32_t TimeStampEdge, uint32_t RTC_TimeStampPin)
{
uint32_t tmpreg = 0U;
/* Check the parameters */
assert_param(IS_TIMESTAMP_EDGE(TimeStampEdge));
assert_param(IS_RTC_TIMESTAMP_PIN(RTC_TimeStampPin));
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Get the RTC_CR register and clear the bits to be configured */
tmpreg = (uint32_t)(hrtc->Instance->CR & (uint32_t)~(RTC_CR_TSEDGE | RTC_CR_TSE));
tmpreg |= TimeStampEdge;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Configure the Time Stamp TSEDGE and Enable bits */
hrtc->Instance->CR = (uint32_t)tmpreg;
hrtc->Instance->TAFCR &= (uint32_t)~RTC_TAFCR_TSINSEL;
hrtc->Instance->TAFCR |= (uint32_t)(RTC_TimeStampPin);
/* Clear RTC Timestamp flag */
__HAL_RTC_TIMESTAMP_CLEAR_FLAG(hrtc, RTC_FLAG_TSF);
__HAL_RTC_TIMESTAMP_ENABLE(hrtc);
/* Enable IT timestamp */
__HAL_RTC_TIMESTAMP_ENABLE_IT(hrtc,RTC_IT_TS);
/* RTC timestamp Interrupt Configuration: EXTI configuration */
__HAL_RTC_TAMPER_TIMESTAMP_EXTI_ENABLE_IT();
EXTI->RTSR |= RTC_EXTI_LINE_TAMPER_TIMESTAMP_EVENT;
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
hrtc->State = HAL_RTC_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_OK;
}
/**
* @brief Deactivates wake up timer counter.
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
* the configuration information for RTC.
* @retval HAL status
*/
uint32_t HAL_RTCEx_DeactivateWakeUpTimer(RTC_HandleTypeDef *hrtc)
{
uint32_t tickstart = 0U;
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Disable the Wake-up Timer */
__HAL_RTC_WAKEUPTIMER_DISABLE(hrtc);
/* In case of interrupt mode is used, the interrupt source must disabled */
__HAL_RTC_WAKEUPTIMER_DISABLE_IT(hrtc,RTC_IT_WUT);
/* Get tick */
tickstart = HAL_GetTick();
/* Wait till RTC WUTWF flag is set and if Time out is reached exit */
while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTWF) == RESET)
{
if((HAL_GetTick() - tickstart ) > RTC_TIMEOUT_VALUE)
{
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
hrtc->State = HAL_RTC_STATE_TIMEOUT;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_TIMEOUT;
}
}
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
hrtc->State = HAL_RTC_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_OK;
}
/* State behaviour */
void behaviour_goodbye(state_ptr state)
{
uint32_t i;
buzzer_note_t beep;
/* Set events to react to */
/* Do state actions */
/* Blink green pin before shutting down */
HAL_GPIO_WritePin(GPIOC,UI_LED_R_Pin|UI_LED_B_Pin|UI_LED_G_Pin,GPIO_PIN_RESET);
for (i = 0; i < 6; i++)
{
HAL_GPIO_TogglePin(GPIOC,UI_LED_G_Pin);
osDelay(200);
}
/* Beep */
beep.note = A4;
beep.ms = 100;
while(osMailPut(queue_periph_buzzerHandle, (void *) &beep) != osOK)
{
osDelay(1);
}
osDelay(105);
beep.note = D4;
beep.ms = 80;
while(osMailPut(queue_periph_buzzerHandle, (void *) &beep) != osOK)
{
osDelay(1);
}
osDelay(80);
// Sleep well little prince
/* Turn off LED */
HAL_GPIO_WritePin(GPIOC,UI_LED_R_Pin|UI_LED_B_Pin|UI_LED_G_Pin,GPIO_PIN_RESET);
/* Disable RTC alarms to avoid waking the system up */
__HAL_RTC_WRITEPROTECTION_DISABLE(&hrtc);
__HAL_RTC_ALARMA_DISABLE(&hrtc);
/* Enable wakeup pin and go to sleep */
HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN1);
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
HAL_PWR_EnterSTANDBYMode();
}
/**
* @brief Deactivates the Coarse calibration parameters.
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
* the configuration information for RTC.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_DeactivateCoarseCalib(RTC_HandleTypeDef* hrtc)
{
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Set Initialization mode */
if(RTC_EnterInitMode(hrtc) != HAL_OK)
{
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Set RTC state*/
hrtc->State = HAL_RTC_STATE_ERROR;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_ERROR;
}
else
{
/* Enable the Coarse Calibration */
__HAL_RTC_COARSE_CALIB_DISABLE(hrtc);
/* Exit Initialization mode */
hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT;
}
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Change state */
hrtc->State = HAL_RTC_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_OK;
}
/**
* @brief Sets TimeStamp.
* @note This API must be called before enabling the TimeStamp feature.
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
* the configuration information for RTC.
* @param TimeStampEdge: Specifies the pin edge on which the TimeStamp is
* activated.
* This parameter can be one of the following values:
* @arg RTC_TIMESTAMPEDGE_RISING: the Time stamp event occurs on the
* rising edge of the related pin.
* @arg RTC_TIMESTAMPEDGE_FALLING: the Time stamp event occurs on the
* falling edge of the related pin.
* @param RTC_TimeStampPin: specifies the RTC TimeStamp Pin.
* This parameter can be one of the following values:
* @arg RTC_TIMESTAMPPIN_DEFAULT: PC13 is selected as RTC TimeStamp Pin.
* @arg RTC_TIMESTAMPPIN_POS1: PI8 is selected as RTC TimeStamp Pin.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetTimeStamp(RTC_HandleTypeDef *hrtc, uint32_t TimeStampEdge, uint32_t RTC_TimeStampPin)
{
uint32_t tmpreg = 0U;
/* Check the parameters */
assert_param(IS_TIMESTAMP_EDGE(TimeStampEdge));
assert_param(IS_RTC_TIMESTAMP_PIN(RTC_TimeStampPin));
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Get the RTC_CR register and clear the bits to be configured */
tmpreg = (uint32_t)(hrtc->Instance->CR & (uint32_t)~(RTC_CR_TSEDGE | RTC_CR_TSE));
tmpreg|= TimeStampEdge;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
hrtc->Instance->TAFCR &= (uint32_t)~RTC_TAFCR_TSINSEL;
hrtc->Instance->TAFCR |= (uint32_t)(RTC_TimeStampPin);
/* Configure the Time Stamp TSEDGE and Enable bits */
hrtc->Instance->CR = (uint32_t)tmpreg;
__HAL_RTC_TIMESTAMP_ENABLE(hrtc);
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_OK;
}
/**
* @brief Deactivates the Calibration Pinout (RTC_CALIB) Selection (1Hz or 512Hz).
* @param hrtc: RTC handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_DeactivateCalibrationOutPut(RTC_HandleTypeDef* hrtc)
{
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
__HAL_RTC_CALIBRATION_OUTPUT_DISABLE(hrtc);
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_OK;
}
/* State behaviour */
void behaviour_goodbye(state_ptr state)
{
/* Set events to react to */
/* Do state actions */
/* Set menu */
osMutexWait(mutex_menuHandle, osWaitForever);
menu_copy(&menu_goodbye, ¤t_menu);
osMutexRelease(mutex_menuHandle);
/* Display menu */
uint32_t i;
for (i = 0; i < menu_goodbye.item_num; i++)
{
while (osMailPut(queue_lcdHandle, (void *) &menu_goodbye.items[i]) != osOK)
{
osDelay(1);
}
}
/* Do state actions */
osDelay(2000);
// Sleep well little prince
/* Turn off LED */
HAL_GPIO_WritePin(GPIOC,UI_LED_R_Pin|UI_LED_B_Pin|UI_LED_G_Pin,GPIO_PIN_RESET);
/* Disable RTC alarms to avoid waking the system up */
__HAL_RTC_WRITEPROTECTION_DISABLE(&hrtc);
__HAL_RTC_ALARMA_DISABLE(&hrtc);
/* Enable wakeup pin and go to sleep */
HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN1);
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
HAL_PWR_EnterSTANDBYMode();
}
/**
* @brief Disables the Bypass Shadow feature.
* @param hrtc: RTC handle
* @note When the Bypass Shadow is enabled the calendar value are taken
* directly from the Calendar counter.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_DisableBypassShadow(RTC_HandleTypeDef* hrtc)
{
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/* Reset the BYPSHAD bit */
hrtc->Instance->CR &= (uint8_t)~RTC_CR_BYPSHAD;
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_OK;
}
void rtc_init_finalise() {
if (!rtc_need_init_finalise) {
return;
}
rtc_info = 0x20000000 | (rtc_use_lse << 28);
if (PYB_RTC_Init(&RTCHandle) != HAL_OK) {
if (rtc_use_lse) {
// fall back to LSI...
rtc_use_lse = false;
rtc_startup_tick = HAL_GetTick();
PYB_RTC_MspInit_Kick(&RTCHandle, rtc_use_lse);
HAL_PWR_EnableBkUpAccess();
RTCHandle.State = HAL_RTC_STATE_RESET;
if (PYB_RTC_Init(&RTCHandle) != HAL_OK) {
rtc_info = 0x0100ffff; // indicate error
return;
}
} else {
// init error
rtc_info = 0xffff; // indicate error
return;
}
}
// record how long it took for the RTC to start up
rtc_info |= (HAL_GetTick() - rtc_startup_tick) & 0xffff;
// fresh reset; configure RTC Calendar
RTC_CalendarConfig();
#if defined(MCU_SERIES_L4)
if(__HAL_RCC_GET_FLAG(RCC_FLAG_BORRST) != RESET) {
#else
if(__HAL_RCC_GET_FLAG(RCC_FLAG_PORRST) != RESET) {
#endif
// power on reset occurred
rtc_info |= 0x10000;
}
if(__HAL_RCC_GET_FLAG(RCC_FLAG_PINRST) != RESET) {
// external reset occurred
rtc_info |= 0x20000;
}
// Clear source Reset Flag
__HAL_RCC_CLEAR_RESET_FLAGS();
rtc_need_init_finalise = false;
}
STATIC HAL_StatusTypeDef PYB_RCC_OscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct) {
/*------------------------------ LSI Configuration -------------------------*/
if ((RCC_OscInitStruct->OscillatorType & RCC_OSCILLATORTYPE_LSI) == RCC_OSCILLATORTYPE_LSI) {
// Check the LSI State
if (RCC_OscInitStruct->LSIState != RCC_LSI_OFF) {
// Enable the Internal Low Speed oscillator (LSI).
__HAL_RCC_LSI_ENABLE();
} else {
// Disable the Internal Low Speed oscillator (LSI).
__HAL_RCC_LSI_DISABLE();
}
}
/*------------------------------ LSE Configuration -------------------------*/
if ((RCC_OscInitStruct->OscillatorType & RCC_OSCILLATORTYPE_LSE) == RCC_OSCILLATORTYPE_LSE) {
// Enable Power Clock
__PWR_CLK_ENABLE();
HAL_PWR_EnableBkUpAccess();
uint32_t tickstart = HAL_GetTick();
#if defined(MCU_SERIES_F7) || defined(MCU_SERIES_L4)
//__HAL_RCC_PWR_CLK_ENABLE();
// Enable write access to Backup domain
//PWR->CR1 |= PWR_CR1_DBP;
// Wait for Backup domain Write protection disable
while ((PWR->CR1 & PWR_CR1_DBP) == RESET) {
if (HAL_GetTick() - tickstart > RCC_DBP_TIMEOUT_VALUE) {
return HAL_TIMEOUT;
}
}
#else
// Enable write access to Backup domain
//PWR->CR |= PWR_CR_DBP;
// Wait for Backup domain Write protection disable
while ((PWR->CR & PWR_CR_DBP) == RESET) {
if (HAL_GetTick() - tickstart > DBP_TIMEOUT_VALUE) {
return HAL_TIMEOUT;
}
}
#endif
// Set the new LSE configuration
__HAL_RCC_LSE_CONFIG(RCC_OscInitStruct->LSEState);
}
return HAL_OK;
}
STATIC HAL_StatusTypeDef PYB_RTC_Init(RTC_HandleTypeDef *hrtc) {
// Check the RTC peripheral state
if (hrtc == NULL) {
return HAL_ERROR;
}
if (hrtc->State == HAL_RTC_STATE_RESET) {
// Allocate lock resource and initialize it
hrtc->Lock = HAL_UNLOCKED;
// Initialize RTC MSP
if (PYB_RTC_MspInit_Finalise(hrtc) != HAL_OK) {
return HAL_ERROR;
}
}
// Set RTC state
hrtc->State = HAL_RTC_STATE_BUSY;
// Disable the write protection for RTC registers
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
// Set Initialization mode
if (RTC_EnterInitMode(hrtc) != HAL_OK) {
// Enable the write protection for RTC registers
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
// Set RTC state
hrtc->State = HAL_RTC_STATE_ERROR;
return HAL_ERROR;
} else {
// Clear RTC_CR FMT, OSEL and POL Bits
hrtc->Instance->CR &= ((uint32_t)~(RTC_CR_FMT | RTC_CR_OSEL | RTC_CR_POL));
// Set RTC_CR register
hrtc->Instance->CR |= (uint32_t)(hrtc->Init.HourFormat | hrtc->Init.OutPut | hrtc->Init.OutPutPolarity);
// Configure the RTC PRER
hrtc->Instance->PRER = (uint32_t)(hrtc->Init.SynchPrediv);
hrtc->Instance->PRER |= (uint32_t)(hrtc->Init.AsynchPrediv << 16);
// Exit Initialization mode
hrtc->Instance->ISR &= (uint32_t)~RTC_ISR_INIT;
#if defined(MCU_SERIES_L4)
hrtc->Instance->OR &= (uint32_t)~RTC_OR_ALARMOUTTYPE;
hrtc->Instance->OR |= (uint32_t)(hrtc->Init.OutPutType);
#elif defined(MCU_SERIES_F7)
hrtc->Instance->OR &= (uint32_t)~RTC_OR_ALARMTYPE;
hrtc->Instance->OR |= (uint32_t)(hrtc->Init.OutPutType);
#else
hrtc->Instance->TAFCR &= (uint32_t)~RTC_TAFCR_ALARMOUTTYPE;
hrtc->Instance->TAFCR |= (uint32_t)(hrtc->Init.OutPutType);
#endif
// Enable the write protection for RTC registers
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
// Set RTC state
hrtc->State = HAL_RTC_STATE_READY;
return HAL_OK;
}
}
STATIC void PYB_RTC_MspInit_Kick(RTC_HandleTypeDef *hrtc, bool rtc_use_lse) {
/* To change the source clock of the RTC feature (LSE, LSI), You have to:
- Enable the power clock using __PWR_CLK_ENABLE()
- Enable write access using HAL_PWR_EnableBkUpAccess() function before to
configure the RTC clock source (to be done once after reset).
- Reset the Back up Domain using __HAL_RCC_BACKUPRESET_FORCE() and
__HAL_RCC_BACKUPRESET_RELEASE().
- Configure the needed RTc clock source */
// RTC clock source uses LSE (external crystal) only if relevant
// configuration variable is set. Otherwise it uses LSI (internal osc).
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (rtc_use_lse) {
RCC_OscInitStruct.LSEState = RCC_LSE_ON;
RCC_OscInitStruct.LSIState = RCC_LSI_OFF;
} else {
RCC_OscInitStruct.LSEState = RCC_LSE_OFF;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
}
PYB_RCC_OscConfig(&RCC_OscInitStruct);
// now ramp up osc. in background and flag calendear init needed
rtc_need_init_finalise = true;
}
/**
* @brief This function configures the RTC_ALARMA as a time base source.
* The time source is configured to have 1ms time base with a dedicated
* Tick interrupt priority.
* @note This function is called automatically at the beginning of program after
* reset by HAL_Init() or at any time when clock is configured, by HAL_RCC_ClockConfig().
* @param TickPriority: Tick interrupt priority.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
{
__IO uint32_t counter = 0U;
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
#ifdef RTC_CLOCK_SOURCE_LSE
/* Configue LSE as RTC clock soucre */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.LSEState = RCC_LSE_ON;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
#elif defined (RTC_CLOCK_SOURCE_LSI)
/* Configue LSI as RTC clock soucre */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
#elif defined (RTC_CLOCK_SOURCE_HSE)
/* Configue HSE as RTC clock soucre */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_HSE_DIV32;
#else
#error Please select the RTC Clock source
#endif /* RTC_CLOCK_SOURCE_LSE */
if(HAL_RCC_OscConfig(&RCC_OscInitStruct) == HAL_OK)
{
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
if(HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) == HAL_OK)
{
/* Enable RTC Clock */
__HAL_RCC_RTC_ENABLE();
__HAL_RCC_RTCAPB_CLK_ENABLE();
/* The time base should be 1ms
Time base = ((RTC_ASYNCH_PREDIV + 1) * (RTC_SYNCH_PREDIV + 1)) / RTC_CLOCK
HSE as RTC clock
Time base = ((49 + 1) * (4 + 1)) / 250kHz
= 1ms
LSE as RTC clock
Time base = ((31 + 1) * (0 + 1)) / 32.768KHz
= ~1ms
LSI as RTC clock
Time base = ((31 + 1) * (0 + 1)) / 32KHz
= 1ms
*/
hRTC_Handle.Instance = RTC;
hRTC_Handle.Init.HourFormat = RTC_HOURFORMAT_24;
hRTC_Handle.Init.AsynchPrediv = RTC_ASYNCH_PREDIV;
hRTC_Handle.Init.SynchPrediv = RTC_SYNCH_PREDIV;
hRTC_Handle.Init.OutPut = RTC_OUTPUT_DISABLE;
hRTC_Handle.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
hRTC_Handle.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
if (HAL_RTC_Init(&hRTC_Handle) != HAL_OK)
{
return HAL_ERROR;
}
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(&hRTC_Handle);
/* Disable the Alarm A interrupt */
__HAL_RTC_ALARMA_DISABLE(&hRTC_Handle);
/* Clear flag alarm A */
__HAL_RTC_ALARM_CLEAR_FLAG(&hRTC_Handle, RTC_FLAG_ALRAF);
counter = 0U;
/* Wait till RTC ALRAWF flag is set and if Time out is reached exit */
while(__HAL_RTC_ALARM_GET_FLAG(&hRTC_Handle, RTC_FLAG_ALRAWF) == 0U)
{
if(counter++ == (SystemCoreClock / 56U)) /* Timeout = ~ 1s */
{
return HAL_ERROR;
}
}
hRTC_Handle.Instance->ALRMAR = (uint32_t)0x01U;
/* Configure the Alarm state: Enable Alarm */
__HAL_RTC_ALARMA_ENABLE(&hRTC_Handle);
/* Configure the Alarm interrupt */
__HAL_RTC_ALARM_ENABLE_IT(&hRTC_Handle, RTC_IT_ALRA);
/* RTC Alarm Interrupt Configuration: EXTI configuration */
__HAL_RTC_ALARM_EXTI_ENABLE_IT();
/* Check if the Initialization mode is set */
if((hRTC_Handle.Instance->ICSR & RTC_ICSR_INITF) == (uint32_t)RESET)
{
/* Set the Initialization mode */
hRTC_Handle.Instance->ICSR = (uint32_t)RTC_INIT_MASK;
counter = 0U;
while((hRTC_Handle.Instance->ICSR & RTC_ICSR_INITF) == (uint32_t)RESET)
{
if(counter++ == (SystemCoreClock / 56U)) /* Timeout = ~ 1s */
{
return HAL_ERROR;
}
}
}
hRTC_Handle.Instance->DR = 0U;
hRTC_Handle.Instance->TR = 0U;
hRTC_Handle.Instance->ICSR &= (uint32_t)~RTC_ICSR_INIT;
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(&hRTC_Handle);
HAL_NVIC_SetPriority(RTC_TAMP_IRQn, TickPriority, 0U);
HAL_NVIC_EnableIRQ(RTC_TAMP_IRQn);
return HAL_OK;
}
}
return HAL_ERROR;
}
/**
* @brief Sets wake up timer with interrupt
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
* the configuration information for RTC.
* @param WakeUpCounter: Wake up counter
* @param WakeUpClock: Wake up clock
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetWakeUpTimer_IT(RTC_HandleTypeDef *hrtc, uint32_t WakeUpCounter, uint32_t WakeUpClock)
{
__IO uint32_t count;
/* Check the parameters */
assert_param(IS_RTC_WAKEUP_CLOCK(WakeUpClock));
assert_param(IS_RTC_WAKEUP_COUNTER(WakeUpCounter));
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
/*Check RTC WUTWF flag is reset only when wake up timer enabled*/
if((hrtc->Instance->CR & RTC_CR_WUTE) != RESET)
{
/* Wait till RTC WUTWF flag is reset and if Time out is reached exit */
count = RTC_TIMEOUT_VALUE * (SystemCoreClock / 32U / 1000U);
do
{
if (count-- == 0U)
{
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
hrtc->State = HAL_RTC_STATE_TIMEOUT;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_TIMEOUT;
}
}
while (__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTWF) == SET);
}
__HAL_RTC_WAKEUPTIMER_DISABLE(hrtc);
/* Wait till RTC WUTWF flag is set and if Time out is reached exit */
count = RTC_TIMEOUT_VALUE * (SystemCoreClock / 32U / 1000U);
do
{
if (count-- == 0U)
{
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
hrtc->State = HAL_RTC_STATE_TIMEOUT;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_TIMEOUT;
}
}
while (__HAL_RTC_WAKEUPTIMER_GET_FLAG(hrtc, RTC_FLAG_WUTWF) == RESET);
/* Configure the Wake-up Timer counter */
hrtc->Instance->WUTR = (uint32_t)WakeUpCounter;
/* Clear the Wake-up Timer clock source bits in CR register */
hrtc->Instance->CR &= (uint32_t)~RTC_CR_WUCKSEL;
/* Configure the clock source */
hrtc->Instance->CR |= (uint32_t)WakeUpClock;
/* RTC WakeUpTimer Interrupt Configuration: EXTI configuration */
__HAL_RTC_WAKEUPTIMER_EXTI_ENABLE_IT();
EXTI->RTSR |= RTC_EXTI_LINE_WAKEUPTIMER_EVENT;
/* Clear RTC Wake Up timer Flag */
__HAL_RTC_WAKEUPTIMER_CLEAR_FLAG(hrtc, RTC_FLAG_WUTF);
/* Configure the Interrupt in the RTC_CR register */
__HAL_RTC_WAKEUPTIMER_ENABLE_IT(hrtc,RTC_IT_WUT);
/* Enable the Wake-up Timer */
__HAL_RTC_WAKEUPTIMER_ENABLE(hrtc);
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
hrtc->State = HAL_RTC_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_OK;
}
/**
* @brief Configures the RTC.
* @param None
* @retval None
*/
static void RTC_Config(void)
{
RTCHandle.Instance = RTC;
/* Set the RTC time base to 1s */
/* Configure RTC prescaler and RTC data registers as follow:
- Hour Format = Format 24
- Asynch Prediv = Value according to source clock
- Synch Prediv = Value according to source clock
- OutPut = Output Disable
- OutPutPolarity = High Polarity
- OutPutType = Open Drain */
RTCHandle.Init.HourFormat = RTC_HOURFORMAT_24;
RTCHandle.Init.AsynchPrediv = RTC_ASYNCH_PREDIV;
RTCHandle.Init.SynchPrediv = RTC_SYNCH_PREDIV;
RTCHandle.Init.OutPut = RTC_OUTPUT_DISABLE;
RTCHandle.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
RTCHandle.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
if(HAL_RTC_Init(&RTCHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/* Check and Clear the Wakeup flag */
if(__HAL_PWR_GET_FLAG(PWR_FLAG_WU) != RESET)
{
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
}
/* Check if the system was resumed from StandBy mode */
if(__HAL_PWR_GET_FLAG(PWR_FLAG_SB) != RESET)
{
/* Clear StandBy flag */
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(&RTCHandle);
/* Wait for RTC APB registers synchronisation (needed after start-up from Reset)*/
if(HAL_RTC_WaitForSynchro(&RTCHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(&RTCHandle);
/* No need to configure the RTC as the RTC config(clock source, enable,
prescaler,...) are kept after wake-up from STANDBY */
}
else
{
/* Set the time to 01h 00mn 00s AM */
RTC_TimeStructure.TimeFormat = RTC_HOURFORMAT12_AM;
RTC_TimeStructure.Hours = 0x01;
RTC_TimeStructure.Minutes = 0x00;
RTC_TimeStructure.Seconds = 0x00;
if(HAL_RTC_SetTime(&RTCHandle, &RTC_TimeStructure, RTC_FORMAT_BCD) == HAL_ERROR)
{
/* Initialization Error */
Error_Handler();
}
}
}
/**
* @brief Configures the Synchronization Shift Control Settings.
* @note When REFCKON is set, firmware must not write to Shift control register.
* @param hrtc: RTC handle
* @param ShiftAdd1S: Select to add or not 1 second to the time calendar.
* This parameter can be one of the following values :
* @arg RTC_SHIFTADD1S_SET: Add one second to the clock calendar.
* @arg RTC_SHIFTADD1S_RESET: No effect.
* @param ShiftSubFS: Select the number of Second Fractions to substitute.
* This parameter can be one any value from 0 to 0x7FFF.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_SetSynchroShift(RTC_HandleTypeDef* hrtc, uint32_t ShiftAdd1S, uint32_t ShiftSubFS)
{
uint32_t tickstart = 0;
/* Check the parameters */
assert_param(IS_RTC_SHIFT_ADD1S(ShiftAdd1S));
assert_param(IS_RTC_SHIFT_SUBFS(ShiftSubFS));
/* Process Locked */
__HAL_LOCK(hrtc);
hrtc->State = HAL_RTC_STATE_BUSY;
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(hrtc);
tickstart = HAL_GetTick();
/* Wait until the shift is completed*/
while((hrtc->Instance->ISR & RTC_ISR_SHPF) != RESET)
{
if((HAL_GetTick()-tickstart) > RTC_TIMEOUT_VALUE)
{
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
hrtc->State = HAL_RTC_STATE_TIMEOUT;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_TIMEOUT;
}
}
/* Check if the reference clock detection is disabled */
if((hrtc->Instance->CR & RTC_CR_REFCKON) == RESET)
{
/* Configure the Shift settings */
hrtc->Instance->SHIFTR = (uint32_t)(uint32_t)(ShiftSubFS) | (uint32_t)(ShiftAdd1S);
/* If RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
if((hrtc->Instance->CR & RTC_CR_BYPSHAD) == RESET)
{
if(HAL_RTC_WaitForSynchro(hrtc) != HAL_OK)
{
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
hrtc->State = HAL_RTC_STATE_ERROR;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_ERROR;
}
}
}
else
{
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_ERROR;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_ERROR;
}
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(hrtc);
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
/* Process Unlocked */
__HAL_UNLOCK(hrtc);
return HAL_OK;
}
/**
* @brief This function configures the RTC_WKUP as a time base source.
* The time source is configured to have 1ms time base with a dedicated
* Tick interrupt priority.
* Wakeup Time base = ((RTC_ASYNCH_PREDIV + 1) * (RTC_SYNCH_PREDIV + 1)) / RTC_CLOCK
= 1ms
* Wakeup Time = WakeupTimebase * WakeUpCounter (0 + 1)
= 1 ms
* @note This function is called automatically at the beginning of program after
* reset by HAL_Init() or at any time when clock is configured, by HAL_RCC_ClockConfig().
* @param TickPriority: Tick interrupt priority.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_InitTick (uint32_t TickPriority)
{
__IO uint32_t counter = 0U;
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
#ifdef RTC_CLOCK_SOURCE_LSE
/* Configue LSE as RTC clock soucre */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.LSEState = RCC_LSE_ON;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
#elif defined (RTC_CLOCK_SOURCE_LSI)
/* Configue LSI as RTC clock soucre */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
#elif defined (RTC_CLOCK_SOURCE_HSE)
/* Configue HSE as RTC clock soucre */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
/* Ensure that RTC is clocked by 1MHz */
PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_1MHZ;
#else
#error Please select the RTC Clock source
#endif /* RTC_CLOCK_SOURCE_LSE */
if(HAL_RCC_OscConfig(&RCC_OscInitStruct) == HAL_OK)
{
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
if(HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) == HAL_OK)
{
/* Enable RTC Clock */
__HAL_RCC_RTC_ENABLE();
/* The time base should be 1ms
Time base = ((RTC_ASYNCH_PREDIV + 1) * (RTC_SYNCH_PREDIV + 1)) / RTC_CLOCK
HSE as RTC clock
Time base = ((99 + 1) * (9 + 1)) / 1Mhz
= 1ms
LSE as RTC clock
Time base = ((31 + 1) * (0 + 1)) / 32.768Khz
= ~1ms
LSI as RTC clock
Time base = ((31 + 1) * (0 + 1)) / 32Khz
= 1ms
*/
hRTC_Handle.Instance = RTC;
hRTC_Handle.Init.HourFormat = RTC_HOURFORMAT_24;
hRTC_Handle.Init.AsynchPrediv = RTC_ASYNCH_PREDIV;
hRTC_Handle.Init.SynchPrediv = RTC_SYNCH_PREDIV;
hRTC_Handle.Init.OutPut = RTC_OUTPUT_DISABLE;
hRTC_Handle.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
hRTC_Handle.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
HAL_RTC_Init(&hRTC_Handle);
/* Disable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_DISABLE(&hRTC_Handle);
/* Disable the Wake-up Timer */
__HAL_RTC_WAKEUPTIMER_DISABLE(&hRTC_Handle);
/* In case of interrupt mode is used, the interrupt source must disabled */
__HAL_RTC_WAKEUPTIMER_DISABLE_IT(&hRTC_Handle,RTC_IT_WUT);
/* Wait till RTC WUTWF flag is set */
while(__HAL_RTC_WAKEUPTIMER_GET_FLAG(&hRTC_Handle, RTC_FLAG_WUTWF) == RESET)
{
if(counter++ == (SystemCoreClock /48U))
{
return HAL_ERROR;
}
}
/* Clear PWR wake up Flag */
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
/* Clear RTC Wake Up timer Flag */
__HAL_RTC_WAKEUPTIMER_CLEAR_FLAG(&hRTC_Handle, RTC_FLAG_WUTF);
/* Configure the Wake-up Timer counter */
hRTC_Handle.Instance->WUTR = (uint32_t)0U;
/* Clear the Wake-up Timer clock source bits in CR register */
hRTC_Handle.Instance->CR &= (uint32_t)~RTC_CR_WUCKSEL;
/* Configure the clock source */
hRTC_Handle.Instance->CR |= (uint32_t)RTC_WAKEUPCLOCK_CK_SPRE_16BITS;
/* RTC WakeUpTimer Interrupt Configuration: EXTI configuration */
__HAL_RTC_WAKEUPTIMER_EXTI_ENABLE_IT();
__HAL_RTC_WAKEUPTIMER_EXTI_ENABLE_RISING_EDGE();
/* Configure the Interrupt in the RTC_CR register */
__HAL_RTC_WAKEUPTIMER_ENABLE_IT(&hRTC_Handle,RTC_IT_WUT);
/* Enable the Wake-up Timer */
__HAL_RTC_WAKEUPTIMER_ENABLE(&hRTC_Handle);
/* Enable the write protection for RTC registers */
__HAL_RTC_WRITEPROTECTION_ENABLE(&hRTC_Handle);
HAL_NVIC_SetPriority(RTC_WKUP_IRQn, TickPriority, 0U);
HAL_NVIC_EnableIRQ(RTC_WKUP_IRQn);
return HAL_OK;
}
}
return HAL_ERROR;
}
