int main(void)
{
/* USER CODE BEGIN 1 */
trace_printf("Hello\n");
RTC_TimeTypeDef Tim;
RTC_DateTypeDef Dat;
/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
/* USER CODE BEGIN 2 */
/* Initialize LED 4 */
BSP_LED_Init(LED4);
/* Initialize RTC */
BSP_RTC_Init();
BSP_RTC_Alarm_Init(AlarmA,0,0,5,RTC_ALARMDATEWEEKDAYSEL_DATE); //Generate alarm interrupt
/* Initialize UART with 115200 baud rate */
BSP_UART_Init(115200);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
__HAL_RTC_ALARM_CLEAR_FLAG(&hrtc_bsp,RTC_ISR_ALRAF);
__HAL_RTC_ALARM_CLEAR_FLAG(&hrtc_bsp,RTC_ISR_ALRBF);
HAL_RTC_GetTime(&hrtc_bsp,&Tim,FORMAT_BIN);
HAL_RTC_GetDate(&hrtc_bsp,&Dat,FORMAT_BIN);
Tim.SubSeconds = 1000 - ((hrtc_bsp.Instance->SSR*1000)/hrtc_bsp.Init.SynchPrediv); // Count msec
uprintf("\x1b[3;1H %d02 : %d02 : %d02 : %d04",Tim.Hours,Tim.Minutes,Tim.Seconds,Tim.SubSeconds);
// uprintf("\x1b[4;1H %d02 / %d02 / %d04", Dat.Date,Dat.Month,Dat.Year);
}
/* USER CODE END 3 */
}
/**
* @brief Enter in stop mode and exit by an alarm
* @param None
* @note This example enter in stop mode.
* @retval None
*/
void LowPowerStopRTCAlarm(void)
{
kWindow_Popup("STOP Alarme", LCD_COLOR_WHITE, LCD_COLOR_BLUE,\
"\nset delay time\n", \
LCD_COLOR_BLUE, LCD_COLOR_WHITE );
/* set the alarm */
LowPowerHandleAlarm();
kWindow_Popup("STOP Alarm", LCD_COLOR_WHITE, LCD_COLOR_BLUE, \
"\n\nstop mode\nstarted\nwait alarm\nto exit\n", \
LCD_COLOR_BLUE, LCD_COLOR_WHITE );
BSP_JOY_Init(JOY_MODE_GPIO);
/* Enter Stop Mode */
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFE);
/* Restore the clock configuration */
SystemClock_STOPExit();
HAL_RTC_DeactivateAlarm(&RtcHandle, RTC_ALARM_A);
/* Clear the Alarm interrupt pending bit */
__HAL_RTC_ALARM_CLEAR_FLAG(&RtcHandle,RTC_FLAG_ALRAF);
/* Clear the EXTI's line Flag for RTC Alarm */
__HAL_RTC_EXTI_CLEAR_FLAG(RTC_EXTI_LINE_ALARM_EVENT);
BSP_JOY_Init(JOY_MODE_EXTI);
}
/**
* @brief This function handles AlarmB Polling request.
* @param hrtc: pointer to a RTC_HandleTypeDef structure that contains
* the configuration information for RTC.
* @param Timeout: Timeout duration
* @retval HAL status
*/
HAL_StatusTypeDef HAL_RTCEx_PollForAlarmBEvent(RTC_HandleTypeDef *hrtc, uint32_t Timeout)
{
uint32_t tickstart = 0U;
/* Get tick */
tickstart = HAL_GetTick();
while(__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRBF) == RESET)
{
if(Timeout != HAL_MAX_DELAY)
{
if((Timeout == 0U)||((HAL_GetTick() - tickstart ) > Timeout))
{
hrtc->State = HAL_RTC_STATE_TIMEOUT;
return HAL_TIMEOUT;
}
}
}
/* Clear the Alarm Flag */
__HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRBF);
/* Change RTC state */
hrtc->State = HAL_RTC_STATE_READY;
return HAL_OK;
}
static void RtcClearStatus( void )
{
/* Clear RTC Alarm Flag */
__HAL_RTC_ALARM_CLEAR_FLAG(&RTCHandle, RTC_FLAG_ALRAF );
__HAL_RTC_ALARMA_DISABLE(&RTCHandle);
}
/**
* @brief EXTI line detection callbacks
* @param GPIO_Pin: Specifies the pins connected EXTI line
* @retval None
*/
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
if(GPIO_Pin == KEY_BUTTON_PIN)
{
HAL_RTC_GetTime(&RTCHandle, &RTC_TimeStructure, RTC_FORMAT_BIN);
HAL_RTC_GetDate(&RTCHandle, &RTC_DateStructure, RTC_FORMAT_BIN);
/* Set the alarm to current time + 5s */
RTC_AlarmStructure.Alarm = RTC_ALARM_A;
RTC_AlarmStructure.AlarmTime.TimeFormat = RTC_TimeStructure.TimeFormat;
RTC_AlarmStructure.AlarmTime.Hours = RTC_TimeStructure.Hours;
RTC_AlarmStructure.AlarmTime.Minutes = RTC_TimeStructure.Minutes;
RTC_AlarmStructure.AlarmTime.Seconds = (RTC_TimeStructure.Seconds + 0x05) % 60;
RTC_AlarmStructure.AlarmDateWeekDay = 0x31;
RTC_AlarmStructure.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;
RTC_AlarmStructure.AlarmMask = RTC_ALARMMASK_DATEWEEKDAY | RTC_ALARMMASK_HOURS | RTC_ALARMMASK_MINUTES;
RTC_AlarmStructure.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_NONE;
/* The Following Wakeup sequence is highly recommended prior to each Standby
mode entry mainly when using more than one wakeup source this is to not
miss any wakeup event:
- Disable all used wakeup sources,
- Clear all related wakeup flags,
- Re-enable all used wakeup sources,
- Enter the Standby mode.
*/
/*## Disable all used wakeup sources #####################################*/
/* Disable Wake-up timer */
HAL_PWR_DisableWakeUpPin(PWR_WAKEUP_PIN1);
/* Disable RTC Alarm */
HAL_RTC_DeactivateAlarm(&RTCHandle, RTC_ALARM_A);
/*## Clear all related wakeup flags ######################################*/
/* Clear PWR wake up Flag */
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
/* Clear the Alarm Flag */
__HAL_RTC_ALARM_CLEAR_FLAG(&RTCHandle, RTC_FLAG_ALRAF);
/*## Re-enable all used wakeup sources ###################################*/
/* Set RTC alarm */
if(HAL_RTC_SetAlarm_IT(&RTCHandle, &RTC_AlarmStructure, RTC_FORMAT_BIN) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/* Enable WKUP pin */
HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN1);
/* Turn LED1 off */
BSP_LED_Off(LED1);
/*## Enter Standby Mode ##################################################*/
HAL_PWR_EnterSTANDBYMode();
}
}
/*!
* @brief Stop the Alarm
* @param none
* @retval none
*/
void HW_RTC_StopAlarm( void )
{
/* Clear RTC Alarm Flag */
__HAL_RTC_ALARM_CLEAR_FLAG( &RtcHandle, RTC_FLAG_ALRAF);
/* Disable the Alarm A interrupt */
HAL_RTC_DeactivateAlarm(&RtcHandle, RTC_ALARM_A );
}
void RTC_Alarm_IRQHandler(void) {
/* RTC Alarm A check */
if (__HAL_RTC_ALARM_GET_IT(&hRTC, RTC_IT_ALRA) != RESET) {
/* Clear RTC Alarm A interrupt flag */
__HAL_RTC_ALARM_CLEAR_FLAG(&hRTC, RTC_FLAG_ALRAF);
/* Call user function for Alarm A */
TM_RTC_AlarmAHandler();
}
/* RTC Alarm B check */
if (__HAL_RTC_ALARM_GET_IT(&hRTC, RTC_IT_ALRB) != RESET) {
/* Clear RTC Alarm A interrupt flag */
__HAL_RTC_ALARM_CLEAR_FLAG(&hRTC, RTC_FLAG_ALRBF);
/* Call user function for Alarm B */
TM_RTC_AlarmBHandler();
}
/* Clear EXTI line 22 bit */
__HAL_RTC_ALARM_EXTI_CLEAR_FLAG();
}
/*!
* @brief RTC IRQ Handler on the RTC Alarm
* @param none
* @retval none
*/
void HW_RTC_IrqHandler ( void )
{
RTC_HandleTypeDef* hrtc=&RtcHandle;
/* enable low power at irq*/
LowPower_Enable( e_LOW_POWER_RTC );
/* Get the AlarmA interrupt source enable status */
if(__HAL_RTC_ALARM_GET_IT_SOURCE(hrtc, RTC_IT_ALRA) != RESET)
{
/* Get the pending status of the AlarmA Interrupt */
if(__HAL_RTC_ALARM_GET_FLAG(hrtc, RTC_FLAG_ALRAF) != RESET)
{
/* Clear the AlarmA interrupt pending bit */
__HAL_RTC_ALARM_CLEAR_FLAG(hrtc, RTC_FLAG_ALRAF);
/* Clear the EXTI's line Flag for RTC Alarm */
__HAL_RTC_ALARM_EXTI_CLEAR_FLAG();
/* AlarmA callback */
HAL_RTC_AlarmAEventCallback(hrtc);
}
}
}
/**
* @brief Configure the Lowpower application
* @param None.
* @note run and display information about the lowpower feature.
* @retval None.
*/
KMODULE_RETURN _LowPowerDemoConfig(void)
{
/* Enable Clock Security System(CSS) */
HAL_RCC_EnableCSS();
/* Configure RTC */
RTC_Config();
/*#### Disable all used wakeup sources ####*/
HAL_RTC_DeactivateAlarm(&RtcHandle, RTC_ALARM_A);
/* Disable all previous wake up interrupt */
HAL_PWR_DisableWakeUpPin(PWR_WAKEUP_PIN1);
/*#### Clear all related wakeup flags ####*/
/* Clear the Alarm interrupt pending bit */
__HAL_RTC_ALARM_CLEAR_FLAG(&RtcHandle,RTC_FLAG_ALRAF);
/* Clear PWR wake up Flag */
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
return KMODULE_OK;
}
/**
* @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 EXTI line detection callbacks
* @param GPIO_Pin: Specifies the pins connected EXTI line
* @retval None
*/
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
if(GPIO_Pin == TAMPER_BUTTON_PIN)
{
HAL_RTC_GetTime(&RTCHandle, &RTC_TimeStructure, RTC_FORMAT_BIN);
HAL_RTC_GetDate(&RTCHandle, &RTC_DateStructure, RTC_FORMAT_BIN);
/* Set the alarm to current time + 5s */
RTC_AlarmStructure.Alarm = RTC_ALARM_A;
RTC_AlarmStructure.AlarmTime.TimeFormat = RTC_TimeStructure.TimeFormat;
RTC_AlarmStructure.AlarmTime.Hours = RTC_TimeStructure.Hours;
RTC_AlarmStructure.AlarmTime.Minutes = RTC_TimeStructure.Minutes;
RTC_AlarmStructure.AlarmTime.Seconds = (RTC_TimeStructure.Seconds + 0x05) % 60;
RTC_AlarmStructure.AlarmDateWeekDay = 0x31;
RTC_AlarmStructure.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;
RTC_AlarmStructure.AlarmMask = RTC_ALARMMASK_DATEWEEKDAY | RTC_ALARMMASK_HOURS | RTC_ALARMMASK_MINUTES;
RTC_AlarmStructure.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_NONE;
/* The Following Wakeup sequence is highly recommended prior to each Standby
mode entry mainly when using more than one wakeup source this is to not
miss any wakeup event:
- Disable all used wakeup sources,
- Clear all related wakeup flags,
- Re-enable all used wakeup sources,
- Enter the Standby mode.
*/
/*## Disable all used wakeup sources #####################################*/
/* Disable Wake-up timer */
HAL_PWR_DisableWakeUpPin(PWR_WAKEUP_PIN1);
/* Disable RTC Alarm */
HAL_RTC_DeactivateAlarm(&RTCHandle, RTC_ALARM_A);
/*## Clear all related wakeup flags ######################################*/
/* Clear PWR wake up Flag */
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
/* Clear the Alarm Flag */
__HAL_RTC_ALARM_CLEAR_FLAG(&RTCHandle, RTC_FLAG_ALRAF);
/*## Re-enable all used wakeup sources ###################################*/
/* Set RTC alarm */
if(HAL_RTC_SetAlarm_IT(&RTCHandle, &RTC_AlarmStructure, RTC_FORMAT_BIN) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/* Enable WKUP pin */
HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN1);
/* Turn LED1 off */
BSP_LED_Off(LED1);
/*## Enter Standby Mode ##################################################*/
HAL_PWR_EnterSTANDBYMode();
}
if(GPIO_Pin == MFX_IRQOUT_PIN)
{
/* The different functionalities of MFX (TS, Joystick, SD detection, etc. )
can be configured in exti mode to generate an IRQ on given events.
The MFX IRQ_OUT pin is unique and common to all functionalities, so if several
functionalities are configured in exit mode, the MCU has to enquire MFX about
the IRQ source (see BSP_IO_ITGetStatus). Communication with Mfx is done by I2C.
Often the sw requires ISRs (irq service routines) to be quick while communication
with I2C can be considered relatively long (hundreds of usec depending on I2C clk).
Considering that the features for human interaction like TS, Joystick, SD detection
don’t need immediate reaction, it is suggested to use POLLING instead of EXTI mode,
in order to avoid "blocking I2C communication" on interrupt service routines */
/* Here an example of implementation is proposed: mix between pooling and exit:
On ISR a flag is set (MfxIrqReceived), the main loop polls on the flag;
Mcu communicates with Mfx only when the flag has been set. This is just an example:
the users should choose they strategy depending on their application needs.*/
MfxExtiReceived = 1;
}
}
