/**
* @brief This function handles External lines 15 to 10 interrupt request.
* @param None
* @retval None
*/
void EXTI15_10_IRQHandler(void)
{
/* TimeStamp Event detected */
if(EXTI_GetITStatus(TAMPER_BUTTON_EXTI_LINE) != RESET)
{
/* Turn LED4 ON */
STM_EVAL_LEDOn(LED4);
printf("\r\n******************** TimeStamp Event Occurred ********************");
/* Clear the TAMPER Button EXTI line pending bit */
EXTI_ClearITPendingBit(TAMPER_BUTTON_EXTI_LINE);
}
/* To display Current RTC Time and Date Calendar */
if(EXTI_GetITStatus(KEY_BUTTON_EXTI_LINE) != RESET)
{
/* Turn LED4 ON */
STM_EVAL_LEDOn(LED4);
/* Clear the KEY Button EXTI line pending bit */
EXTI_ClearITPendingBit(KEY_BUTTON_EXTI_LINE);
/* Display the Time */
RTC_TimeShow();
/* Display the date */
RTC_DateShow();
/* Display the TimeStamp */
RTC_TimeStampShow();
}
}
/**
* @brief This function handles External lines 15 to 10 interrupt request.
* @param None
* @retval None
*/
void EXTI15_10_IRQHandler(void)
{
/* TimeStamp Event detected */
if(EXTI_GetITStatus(TAMPER_BUTTON_EXTI_LINE) != RESET)
{
count++;
/* Turn on LED2 and off LED1 */
STM_EVAL_LEDOn(LED2);
STM_EVAL_LEDOff(LED1);
/* LCD display */
LCD_ClearLine(LCD_LINE_2);
LCD_DisplayStringLine(LCD_LINE_3,(uint8_t *) "TimeStamp Event Occurred " );
/* Display the TimeStamp */
RTC_TimeStampShow();
/* Display the date */
RTC_DateShow();
/* Display the Time */
RTC_TimeShow();
/* Clear the TAMPER Button EXTI line pending bit */
EXTI_ClearITPendingBit(TAMPER_BUTTON_EXTI_LINE);
}
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f0xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f0xx.c file
*/
/* USARTx configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- One Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
STM_EVAL_COMInit(COM1, &USART_InitStructure);
/* GPIOC Periph clock enable */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
/* Output a message on Hyperterminal using printf function */
printf("\n\r *********************** RTC Time Stamp Example ***********************\n\r");
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)
{
printf("\n\r /!\\***** RTC Prescaler Config failed ********/!\\ \n\r");
}
/* Configure the time register */
RTC_TimeRegulate();
}
else
{
/* Check if the Power On Reset flag is set */
if (RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
{
printf("\r\n Power On Reset occurred....\n\r");
}
/* Check if the Pin Reset flag is set */
else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET)
{
printf("\r\n External Reset occurred....\n\r");
}
printf("\r\n No need to configure RTC....\n\r");
/* 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);
/* Display the RTC Time/Date and TimeStamp Time/Date */
RTC_TimeShow();
RTC_DateShow();
RTC_TimeStampShow();
}
/* Configure the external interrupt "TAMPER" and "Joystick SEL" buttons */
STM_EVAL_PBInit(BUTTON_TAMPER, BUTTON_MODE_EXTI);
STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_EXTI);
STM_EVAL_PBInit(BUTTON_SEL, BUTTON_MODE_EXTI);
/* Configure LED1 */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDOn(LED1);
/* Infinite loop */
while (1)
{
}
}
/**
* @brief Returns the time entered by user, using Hyperterminal.
* @param None
* @retval None
*/
void RTC_TimeRegulate(void)
{
uint32_t tmp_hh = 0xFF, tmp_mm = 0xFF, tmp_ss = 0xFF;
printf("\n\r==============Time Settings=====================================\n\r");
RTC_TimeStructure.RTC_H12 = RTC_H12_AM;
printf(" Please Set Hours\n\r");
while (tmp_hh == 0xFF)
{
tmp_hh = USART_Scanf(0, 23);
RTC_TimeStructure.RTC_Hours = tmp_hh;
}
printf(": %0.2d\n\r", tmp_hh);
printf(" Please Set Minutes\n\r");
while (tmp_mm == 0xFF)
{
tmp_mm = USART_Scanf(0, 59);
RTC_TimeStructure.RTC_Minutes = tmp_mm;
}
printf(": %0.2d\n\r", tmp_mm);
printf(" Please Set Seconds\n\r");
while (tmp_ss == 0xFF)
{
tmp_ss = USART_Scanf(0, 59);
RTC_TimeStructure.RTC_Seconds = tmp_ss;
}
printf(": %0.2d\n\r", tmp_ss);
/* Configure the RTC time register */
if(RTC_SetTime(RTC_Format_BIN, &RTC_TimeStructure) == ERROR)
{
printf("\n\r>> !! RTC Set Time failed. !! <<\n\r");
}
else
{
printf("\n\r>> !! RTC Set Time success. !! <<\n\r");
RTC_TimeShow();
/* Indicator for the RTC configuration */
RTC_WriteBackupRegister(RTC_BKP_DR0, 0x32F2);
}
tmp_hh = 0xFF;
tmp_mm = 0xFF;
tmp_ss = 0xFF;
printf("\n\r==============Date Settings=====================================\n\r");
printf(" Please Set WeekDay (01-07)\n\r");
while (tmp_hh == 0xFF)
{
tmp_hh = USART_Scanf(1, 7);
RTC_DateStructure.RTC_WeekDay = tmp_hh;
}
printf(": %0.2d\n\r", tmp_hh);
tmp_hh = 0xFF;
printf(" Please Set Date (01-31)\n\r");
while (tmp_hh == 0xFF)
{
tmp_hh = USART_Scanf(1, 31);
RTC_DateStructure.RTC_Date = tmp_hh;
}
printf(": %0.2d\n\r", tmp_hh);
printf(" Please Set Month (01-12)\n\r");
while (tmp_mm == 0xFF)
{
tmp_mm = USART_Scanf(1, 12);
RTC_DateStructure.RTC_Month = tmp_mm;
}
printf(": %0.2d\n\r", tmp_mm);
printf(" Please Set Year (00-99)\n\r");
while (tmp_ss == 0xFF)
{
tmp_ss = USART_Scanf(0, 99);
RTC_DateStructure.RTC_Year = tmp_ss;
}
printf(": %0.2d\n\r", tmp_ss);
/* Configure the RTC date register */
if(RTC_SetDate(RTC_Format_BIN, &RTC_DateStructure) == ERROR)
{
printf("\n\r>> !! RTC Set Date failed. !! <<\n\r");
}
else
{
printf("\n\r>> !! RTC Set Date success. !! <<\n\r");
RTC_DateShow();
/* Indicator for the RTC configuration */
RTC_WriteBackupRegister(RTC_BKP_DR0, 0x32F2);
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
files (startup_stm32f40xx.s/startup_stm32f427x.s) before to branch to
application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
/* Configure the external interrupt "WAKEUP" and "TAMPER" buttons */
STM_EVAL_PBInit(BUTTON_TAMPER , BUTTON_MODE_EXTI);
STM_EVAL_PBInit(BUTTON_WAKEUP , BUTTON_MODE_EXTI);
/* Initialize LEDs and LCD available on EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
/* Initialize the LCD */
LCD_Init();
LCD_Clear(LCD_COLOR_WHITE);
/* Set the Back Color */
LCD_SetBackColor(LCD_COLOR_BLUE);
/* Set the Text Color */
LCD_SetTextColor(LCD_COLOR_WHITE);
LCD_DisplayStringLine(LCD_LINE_0,(uint8_t *) " TimeStamp Example " );
LCD_SetFont(&Font12x12);
if (RTC_ReadBackupRegister(RTC_BKP_DR0) != 0x32F2)
{
/* RTC configuration */
RTC_Config();
/* Configure the time&date register */
RTC_TimeRegulate();
/* Display the Date and Time */
RTC_DateShow();
RTC_TimeShow();
}
else
{
/* Check if the Power On Reset flag is set */
if (RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
{
/* Set the Back Color */
LCD_SetBackColor(LCD_COLOR_WHITE);
/* Set the Text Color */
LCD_SetTextColor(LCD_COLOR_GREEN);
LCD_DisplayStringLine(LCD_LINE_2,(uint8_t *) "Power On Reset occurred " );
}
/* Check if the Pin Reset flag is set */
else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET)
{
/* Set the Back Color */
LCD_SetBackColor(LCD_COLOR_WHITE);
/* Set the Text Color */
LCD_SetTextColor(LCD_COLOR_GREEN);
LCD_DisplayStringLine(LCD_LINE_2,(uint8_t *) "External Reset occurred " );
}
/* Set the Back Color */
LCD_SetBackColor(LCD_COLOR_WHITE);
/* Set the Text Color */
LCD_SetTextColor(LCD_COLOR_GREEN);
LCD_DisplayStringLine(LCD_LINE_3,(uint8_t *) "No need to configure RTC " );
/* 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);
/* Display the RTC Time/Date and TimeStamp Time/Date */
RTC_DateShow();
RTC_TimeShow();
}
while (1)
{
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
void RTCTime_Test(void)
{
uart_init();
/* Output a message on Hyperterminal using printf function */
printf("\n\r *********************** RTC Time Stamp Example ***********************\n\r");
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)
{
printf("\n\r /!\\***** RTC Prescaler Config failed ********/!\\ \n\r");
}
/* Configure the time register */
RTC_TimeRegulate();
}
else
{
/* Check if the Power On Reset flag is set */
if (RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
{
printf("\r\n Power On Reset occurred....\n\r");
}
/* Check if the Pin Reset flag is set */
else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET)
{
printf("\r\n External Reset occurred....\n\r");
}
printf("\r\n No need to configure RTC....\n\r");
/* 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);
/* Display the RTC Time/Date and TimeStamp Time/Date */
RTC_TimeShow();
RTC_DateShow();
RTC_TimeStampShow();
}
PUTOUT_KeyInit();
while (1)
{
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f4xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
#if defined (RTC_CLOCK_SOURCE_LSI)
/* Enable the LSI OSC */
RCC_LSICmd(ENABLE);
#endif /* RTC_CLOCK_SOURCE_LSI */
/* Configure the external interrupt "WAKEUP" and "TAMPER" buttons */
STM_EVAL_PBInit(BUTTON_TAMPER , BUTTON_MODE_EXTI);
STM_EVAL_PBInit(BUTTON_SEL , BUTTON_MODE_EXTI);
/* Configure LEDs */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDOn(LED1);
/* Initialize the LCD */
#ifdef USE_STM320518_EVAL
STM320518_LCD_Init();
#else
STM32072B_LCD_Init();
#endif /* USE_STM320518_EVAL */
/* Clear the LCD */
LCD_Clear(White);
/* Enable The Display */
LCD_DisplayOn();
/* Set the LCD Back Color and Text Color*/
LCD_SetBackColor(Blue);
LCD_SetTextColor(White);
LCD_DisplayStringLine(LCD_LINE_0,(uint8_t *) " TimeStamp Example " );
/* Set the LCD Text size */
LCD_SetFont(&Font16x24);
if (RTC_ReadBackupRegister(RTC_BKP_DR0) != 0x32F2)
{
/* RTC configuration */
RTC_Config();
/* Configure the time&date register */
RTC_TimeRegulate();
/* Display the Date */
RTC_DateShow();
/* Display the Time */
RTC_TimeShow();
}
else
{
/* Check if the Power On Reset flag is set */
if (RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
{
/* Set the Back Color */
LCD_SetBackColor(LCD_COLOR_CYAN);
/* Set the Text Color */
LCD_SetTextColor(LCD_COLOR_BLACK);
LCD_SetFont(&Font12x12);
LCD_DisplayStringLine(LCD_LINE_2,(uint8_t *) " Power On Reset occurred " );
}
/* Check if the Pin Reset flag is set */
else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET)
{
/* Set the Back Color */
LCD_SetBackColor(LCD_COLOR_CYAN);
/* Set the Text Color */
LCD_SetTextColor(LCD_COLOR_BLACK);
LCD_SetFont(&Font12x12);
LCD_DisplayStringLine(LCD_LINE_2,(uint8_t *) " External Reset occurred " );
}
/* Set the Back Color */
LCD_SetBackColor(LCD_COLOR_CYAN);
/* Set the Text Color */
LCD_SetTextColor(LCD_COLOR_BLACK);
LCD_SetFont(&Font12x12);
LCD_DisplayStringLine(LCD_LINE_3,(uint8_t *) " No need to configure RTC " );
/* 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);
/* Display the RTC Time/Date and TimeStamp Time/Date */
RTC_DateShow();
RTC_TimeShow();
}
while (1)
{
if (Button_State == TAMPER_ON)
{
/* Turn LED4 ON */
STM_EVAL_LEDOn(LED2);
LCD_SetFont(&Font12x12);
LCD_DisplayStringLine(LCD_LINE_5,(uint8_t *) " TimeStamp Event Occurred " );
LCD_SetFont(&Font16x24);
LCD_ClearLine(LCD_LINE_4);
LCD_ClearLine(LCD_LINE_5);
LCD_ClearLine(LCD_LINE_6);
LCD_ClearLine(LCD_LINE_7);
LCD_ClearLine(LCD_LINE_8);
/* Display the TimeStamp */
RTC_TimeStampShow();
Button_State = 0;
}
else if (Button_State == SEL_ON)
{
/* 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);
LCD_SetFont(&Font12x12);
LCD_ClearLine(LCD_LINE_5);
LCD_SetFont(&Font12x12);
LCD_DisplayStringLine(LCD_LINE_5,(uint8_t *) " TimeStamp Event Cleared " );
Button_State = 0;
}
}
}
