static long rtcTimeNow()
{
RTC_TimeTypeDef time;
RTC_DateTypeDef date;
RTC_TimeTypeDef time2;
RTC_DateTypeDef date2;
uint32_t ss;
uint32_t ss2;
struct tm t;
// RTC is in BYPSHAD mode. Read the registers twice.
RTC_GetTime(RTC_Format_BIN, &time);
RTC_GetDate(RTC_Format_BIN, &date);
ss = RTC_GetSubSecond();
RTC_GetTime(RTC_Format_BIN, &time2);
RTC_GetDate(RTC_Format_BIN, &date2);
ss2 = RTC_GetSubSecond();
// Check read values. If they match, read was ok. Otherwise read third time.
if (ss != ss2 ||
time.RTC_Seconds != time2.RTC_Seconds ||
time.RTC_Minutes != time2.RTC_Minutes ||
time.RTC_Hours != time2.RTC_Hours ||
date.RTC_Date != date2.RTC_Date ||
date.RTC_Month != date2.RTC_Month ||
date.RTC_Year != date2.RTC_Year) {
RTC_GetTime(RTC_Format_BIN, &time);
RTC_GetDate(RTC_Format_BIN, &date);
ss = RTC_GetSubSecond();
}
memset(&t, '\0', sizeof(t));
t.tm_sec = time.RTC_Seconds;
t.tm_min = time.RTC_Minutes;
t.tm_hour = time.RTC_Hours;
t.tm_mday = date.RTC_Date;
t.tm_mon = date.RTC_Month - 1;
t.tm_year = date.RTC_Year + 2000 - 1900;
time_t secs;
long msecs;
secs = mktime(&t);
msecs = 1000 - (ss * 1000 / 1024);
return 1000 * secs + msecs;
}
void Time_Show(uint8_t Line, uint8_t pos)
{
/* Wait until the calendar is synchronized */
while (RTC_WaitForSynchro() != SUCCESS);
/* Get the current subsecond Time*/
Subsecondvalue = RTC_GetSubSecond();
/* Wait until the calendar is synchronized */
while (RTC_WaitForSynchro() != SUCCESS);
/* Get the current Time*/
RTC_GetTime(RTC_Format_BCD, &RTC_TimeStr);
Mstime = 999 - ((uint32_t)((uint32_t)Subsecondvalue * 1000) / (uint32_t)RTC_InitStr.RTC_SynchPrediv);
Ms100 = (uint8_t)(Mstime / 100);
Ms10 = (uint8_t)((Mstime % 100 ) / 10);
Ms1 = (uint8_t)(Mstime % 10);
/* Fill the LCDString fields with the current Time : second and milliseconds*/
LCDStringTime[pos] = (uint8_t)(((uint8_t)(RTC_TimeStr.RTC_Seconds & 0xF0) >> 4) + ASCII_NUM_0);
LCDStringTime[pos+1] = (uint8_t)(((uint8_t)(RTC_TimeStr.RTC_Seconds & 0x0F)) + ASCII_NUM_0);
LCDStringTime[pos+3] = (uint8_t)((uint8_t)(Ms100 + ASCII_NUM_0));
LCDStringTime[pos+4] = (uint8_t)((uint8_t)(Ms10 + ASCII_NUM_0));
LCDStringTime[pos+5] = (uint8_t)((uint8_t)(Ms1 + ASCII_NUM_0));
/* Print the Time Calendar on the LCD*/
LCD_SetCursorPos(Line, 0);
LCD_Print((uint8_t*)LCDStringTime);
}
int64_t get_current_time(){
int64_t ret;
RTC_TimeTypeDef time;
ret = RTC_GetSubSecond();
RTC_GetTime( RTC_Format_BIN, &time );
ret += time.RTC_Hours*60*60*1000;
ret += time.RTC_Minutes*60*1000;
ret += time.RTC_Seconds*1000;
return ret;
}
void Time_SaveCurrentTime(uint8_t Id)
{
/* Wait until the calendar is synchronized */
while (RTC_WaitForSynchro() != SUCCESS);
/* Get the current subsecond Time*/
SaveSubsecond[Id] = RTC_GetSubSecond();
/* Wait until the calendar is synchronized */
while (RTC_WaitForSynchro() != SUCCESS);
/* Get the current Time*/
RTC_GetTime(RTC_Format_BCD, &RTC_SaveTimeStr[Id]);
}
void get_iec_time(cp56time2a* TM_cp56_time){
RTC_TimeTypeDef RTC_TimeStruct;
RTC_DateTypeDef RTC_DateStruct;
RTC_GetTime(RTC_Format_BIN, &RTC_TimeStruct);
RTC_GetDate(RTC_Format_BIN, &RTC_DateStruct);
TM_cp56_time->hour = RTC_TimeStruct.RTC_Hours;
TM_cp56_time->min = RTC_TimeStruct.RTC_Minutes;
TM_cp56_time->msec = RTC_TimeStruct.RTC_Seconds*0x03E8 + RTC_GetSubSecond()/8;
TM_cp56_time->mday = RTC_DateStruct.RTC_Date;
TM_cp56_time->month = RTC_DateStruct.RTC_Month;
TM_cp56_time->wday = RTC_DateStruct.RTC_WeekDay;
TM_cp56_time->year = RTC_DateStruct.RTC_Year;
}
void Time_Show(uint8_t Line)
{
/* Wait until the calendar is synchronized */
while (RTC_WaitForSynchro() != SUCCESS);
/* Get the current subsecond Time*/
subsecondvalue = RTC_GetSubSecond();
/* Wait until the calendar is synchronized */
while (RTC_WaitForSynchro() != SUCCESS);
/* Get the current Time*/
RTC_GetTime(RTC_Format_BCD, &RTC_TimeStr);
mstime = 1000 - ((uint32_t)((uint32_t)subsecondvalue * 1000) / (uint32_t)RTC_InitStr.RTC_SynchPrediv);
ms100 = (uint8_t)(mstime / 100);
ms10 = (uint8_t)((mstime % 100 ) / 10);
ms1 = (uint8_t)(mstime % 10);
/* Fill the LCDString fields with the current Time*/
LCDStringTime[SHOW_POINT] = (uint8_t)(((uint8_t)(RTC_TimeStr.RTC_Hours & 0xF0) >> 4) + ASCII_NUM_0);
LCDStringTime[SHOW_POINT+1] = (uint8_t)(((uint8_t)(RTC_TimeStr.RTC_Hours & 0x0F)) + ASCII_NUM_0);
LCDStringTime[SHOW_POINT+3] = (uint8_t)(((uint8_t)(RTC_TimeStr.RTC_Minutes & 0xF0) >> 4) + ASCII_NUM_0);
LCDStringTime[SHOW_POINT+4] = (uint8_t)(((uint8_t)(RTC_TimeStr.RTC_Minutes & 0x0F)) + (uint8_t)ASCII_NUM_0);
LCDStringTime[SHOW_POINT+6] = (uint8_t)(((uint8_t)(RTC_TimeStr.RTC_Seconds & 0xF0) >> 4) + ASCII_NUM_0);
LCDStringTime[SHOW_POINT+7] = (uint8_t)(((uint8_t)(RTC_TimeStr.RTC_Seconds & 0x0F)) + ASCII_NUM_0);
LCDStringTime[SHOW_POINT+9] = (uint8_t)((uint8_t)(ms100 + ASCII_NUM_0));
LCDStringTime[SHOW_POINT+10] = (uint8_t)((uint8_t)(ms10 + ASCII_NUM_0));
LCDStringTime[SHOW_POINT+11] = (uint8_t)((uint8_t)(ms1 + ASCII_NUM_0));
/* Print the Time Calendar on the LCD*/
LCD_SetCursorPos(Line, 0);
LCD_Print((uint8_t *)LCDStringTime);
}
/**
* @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
*/
RTC_TimeTypeDef RTC_TimeStruct;
/* Initialize the LCD */
STM320518_LCD_Init();
/* Clear the LCD */
LCD_Clear(LCD_COLOR_WHITE);
/* Set the LCD Back Color */
LCD_SetBackColor(Blue);
/* Set the LCD Text Color */
LCD_SetTextColor(White);
/* Displays MESSAGE1 on line 1 */
LCD_DisplayStringLine(LINE(0), (uint8_t *)MESSAGE1);
/* Set the LCD Text Color */
LCD_SetTextColor(Red);
/* Set the LCD Back Color */
LCD_SetBackColor(Red);
LCD_DrawFullRect(31, 292,264,34);
/* Set the LCD Back Color */
LCD_SetBackColor(White);
LCD_DrawFullRect(33, 290 ,260,30);
/* Configure the external interrupt "RIGHT" and "LEFT" buttons */
STM_EVAL_PBInit(BUTTON_RIGHT,BUTTON_MODE_EXTI);
STM_EVAL_PBInit(BUTTON_LEFT,BUTTON_MODE_EXTI);
/* Configure the RTC peripheral by selecting the clock source.*/
RTC_Config();
/* Configure the RTC tamper register : To Clear all the Backup data register */
RTC_TamperConfig();
/* Set the LCD Text, Back Colors and Text size */
LCD_SetTextColor(Black);
LCD_SetBackColor(Cyan);
LCD_SetFont(&Font12x12);
LCD_DisplayStringLine(LINE(18), (uint8_t *)MESSAGE2);
/* Set the LCD Back Color */
LCD_SetBackColor(Blue);
LCD_SetTextColor(White);
LCD_DisplayStringLine(LINE(19), (uint8_t *)MESSAGE3);
/* Set text size */
LCD_SetFont(&Font16x24);
/* Set the LCD Text Color */
LCD_SetTextColor(Blue);
/* Initialize time Stucture */
RTC_TimeStructInit(&RTC_TimeStruct);
/* Infinite loop */
while (1)
{
/* Set the LCD Back Color and text size */
LCD_SetFont(&Font16x24);
LCD_SetBackColor(White);
/* Check on the event 'start' */
if(StartEvent != 0x0)
{
/* Get the RTC sub second fraction */
SecondFraction = (((256 - (uint32_t)RTC_GetSubSecond()) * 1000) / 256);
/* Get the Curent time */
RTC_GetTime(RTC_Format_BIN, &RTC_TimeStruct);
/* Refresh : Display the curent time and the sub second on the LCD */
RTC_Time_Display(37, Black , RTC_Get_Time(SecondFraction , &RTC_TimeStruct));
}
else
{
/* Re-initialize the Display time on the LCD */
RTC_Time_InitDisplay();
}
}
}
/**
* @brief This function handles External lines 15 to 10 interrupt request.
* @param None
* @retval None
*/
void EXTI15_10_IRQHandler(void)
{
if((EXTI_GetITStatus(TAMPER_BUTTON_EXTI_LINE) != RESET) && (ubStartevent !=0) && (uwBackupindex < 11))
{
uint16_t Colorx;
uint8_t index = 0;
if (uwBackupindex < 10)
{
/* Increment counter */
ubRTCCount++;
/* Set LCD background color*/
if((uint8_t)(ubRTCCount % 2) != 0)
{
LCD_SetBackColor(Blue2);
Colorx = White;
}
else
{
LCD_SetBackColor(Cyan);
Colorx = Black;
}
/* Get the Current sub seconds and time */
ubSSecondfraction = 1000 - ((uint32_t)((uint32_t)RTC_GetSubSecond() * 1000) / (uint32_t)0x3FF);
RTC_GetTime(RTC_Format_BCD, &RTC_StampTimeStruct);
LCD_SetFont(&Font12x12);
/* Display result on the LCD */
RTC_Time_display(LINE(7 + uwBackupindex), Colorx, RTC_Get_Time(ubSSecondfraction , &RTC_StampTimeStruct));
/* Save time register to Backup register (the first 10 registers are reserved for time) */
RTC_WriteBackupRegister(aBKPDataReg[uwBackupindex],(uint32_t)RTC->TR);
/* Save sub second time stamp register (the latest 10 registers are reserved for sub second) */
RTC_WriteBackupRegister(aBKPDataReg[uwBackupindex + 10], ubSSecondfraction);
}
else
{
/* Set the LCD Background Color */
LCD_SetBackColor(White);
LCD_SetFont(&Font12x12);
/* Clear all LCD lines from 7 to 19 */
for (index = 0; index < 13; index++)
{
LCD_ClearLine(LINE(7 + index));
}
/* Reset Counters */
ubRTCCount = 0;
uwBackupindex = 0 ;
/* Enter to idle */
ubStartevent =0;
/* Set the time to 00h 00mn 00s AM */
RTC_TimeStructure.RTC_H12 = RTC_H12_AM;
RTC_TimeStructure.RTC_Hours = 0;
RTC_TimeStructure.RTC_Minutes = 0;
RTC_TimeStructure.RTC_Seconds = 0;
RTC_SetTime(RTC_Format_BCD, &RTC_TimeStructure);
/* Disable the RTC Clock */
RCC_RTCCLKCmd(DISABLE);
LCD_SetFont(&Font16x24);
/* Set the LCD Text Color */
LCD_SetTextColor(Blue);
/* Display message to the LCD */
LCD_DisplayStringLine(LINE(5), (uint8_t *)MESSAGE1);
/* Clear EXTI line 21 */
EXTI_ClearITPendingBit(EXTI_Line21);
/* Clear Tamper pin interrupt pending bit */
RTC_ClearITPendingBit(RTC_IT_TAMP1);
}
uwBackupindex++;
}
/* Clear the TAMPER EXTI 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_stm32f4xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
/* Initialize the LCD */
STM324xG_LCD_Init();
/* Clear the LCD */
LCD_Clear(White);
/* Set the LCD Back Color */
LCD_SetBackColor(Blue);
/* Set the LCD Text Color */
LCD_SetTextColor(White);
/* Displays MESSAGE1 on line 1 */
LCD_DisplayStringLine(LINE(0), (uint8_t *)MESSAGE1);
/* RTC configuration */
RTC_Config();
/* Set the LCD Text Color */
LCD_SetTextColor(Red);
/* Set the LCD Back Color */
LCD_SetBackColor(White);
/* Draw rectangle on the LCD */
LCD_DrawRect(43, 300, 30, 260);
/* Configure the external interrupt "WAKEUP" and "KEY" buttons */
STM_EVAL_PBInit(BUTTON_WAKEUP,BUTTON_MODE_EXTI);
STM_EVAL_PBInit(BUTTON_KEY,BUTTON_MODE_EXTI);
/* Configure the RTC tamper register */
RTC_TamperConfig();
/* Set the LCD Text Color */
LCD_SetTextColor(Blue);
/* Displays MESSAGE2 on line 5 */
LCD_DisplayStringLine(LINE(5), (uint8_t *)MESSAGE2);
/* Infinite loop */
while (1)
{
/* Set The LCD font size */
LCD_SetFont(&Font16x24);
/* Set the LCD Back Color */
LCD_SetBackColor(White);
/* Check on the event 'start'*/
if(Startevent != 0x0)
{
/* Get the RTC sub second fraction */
Secondfraction = 1000 - ((uint32_t)((uint32_t)RTC_GetSubSecond() * 1000) / (uint32_t)0x3FF);
}
else
{
/* Idle */
Secondfraction =0x0;
}
/* Get the Curent time */
RTC_GetTime(RTC_Format_BCD, &RTC_TimeStruct);
/* Display the curent time and the sub second on the LCD */
RTC_Time_display(Line2, Black , RTC_Get_Time(Secondfraction , &RTC_TimeStruct));
}
}
/**
* @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
*/
RTC_TimeTypeDef RTC_TimeStruct;
RTC_TimeTypeDef RTC_TimeStructureInit;
RTC_TimeTypeDef RTC_StampTimeStruct;
/* Configure the external interrupt "RIGHT" and "LEFT" buttons */
STM_EVAL_PBInit(BUTTON_RIGHT,BUTTON_MODE_EXTI);
STM_EVAL_PBInit(BUTTON_LEFT,BUTTON_MODE_EXTI);
/* Configure the RTC peripheral by selecting the clock source.*/
RTC_Config();
/* LCD Display init */
Display_Init();
/* Configure the RTC tamper register : To Clear all the Backup data register */
RTC_TamperConfig();
/* Initialize time Stucture */
RTC_TimeStructInit(&RTC_TimeStruct);
/* Infinite loop */
while (1)
{
/* Set the LCD Back Color and text size */
LCD_SetFont(&Font16x24);
LCD_SetBackColor(White);
/* Check on the event 'start' */
if(StartEvent != 0x0)
{
/* Get the RTC sub second fraction */
SecondFraction = (((256 - (uint32_t)RTC_GetSubSecond()) * 1000) / 256);
/* Get the Curent time */
RTC_GetTime(RTC_Format_BIN, &RTC_TimeStruct);
/* Refresh : Display the curent time and the sub second on the LCD */
RTC_Time_Display(37, Black , RTC_Get_Time(SecondFraction , &RTC_TimeStruct));
}
else
{
/* Re-initialize the Display time on the LCD */
RTC_Time_InitDisplay();
}
/* Left button is pressed */
if (Button_State == LEFT_ON)
{
/* Enable Tamper interrupt */
RTC_ITConfig(RTC_IT_TAMP, ENABLE);
/* Enabale the tamper 1 */
RTC_TamperCmd(RTC_Tamper_1 , ENABLE);
/* Set the LCD Back Color */
LCD_SetBackColor(White);
/* Clear the LCD line 5 */
LCD_ClearLine(Line5);
/* Get the current time */
RTC_GetTime(RTC_Format_BIN, &RTC_TimeStructureInit);
CurrentTimeSec = (RTC_TimeStructureInit.RTC_Hours * 3600) + (RTC_TimeStructureInit.RTC_Minutes * 60) +
RTC_TimeStructureInit.RTC_Seconds;
/* start count */
StartEvent = 0x1;
/* Reinitialize Button_State variable */
Button_State = 0;
}
/* Right button is pressed */
else if (Button_State == RIGHT_ON)
{
uint16_t Colorx;
if (BackupIndex < 5)
{
if((uint8_t)(BackupIndex% 2) != 0x0)
{
/* Set LCD backcolor*/
LCD_SetBackColor(Blue2);
Colorx = White;
}
else
{
/* Set LCD backcolor*/
LCD_SetBackColor(Cyan);
Colorx = Black;
}
SubSecFrac = 0;
/* Get the Current sub second and time */
SubSecFrac = (((256 - (uint32_t)RTC_GetSubSecond()) * 1000) / 256);
RTC_GetTime(RTC_Format_BIN, &RTC_StampTimeStruct);
LCD_SetFont(&Font16x24);
/* Display result on the LCD */
RTC_Time_Display( LINE(3 + BackupIndex), Colorx, RTC_Get_Time(SubSecFrac , &RTC_StampTimeStruct) );
if (BackupIndex < 2)
{
/* Save time register to Backup register ( the first 5 register is reserved for time) */
RTC_WriteBackupRegister(BKPDataReg[BackupIndex],(uint32_t)RTC->TR);
/* Save sub second time stamp register ( the latest 6 register is reserved for time) */
RTC_WriteBackupRegister(BKPDataReg[BackupIndex + 2], SubSecFrac);
}
}
else
{
/* the backup register is full with 10trials */
/* Set the LCD Back Color */
LCD_SetBackColor(White);
LCD_SetFont(&Font12x12);
/* Set the LCD Text Color */
LCD_SetTextColor(Red);
LCD_DisplayStringLine(LINE(16), (uint8_t *)MESSAGE4);
LCD_DisplayStringLine(LINE(17), (uint8_t *)MESSAGE5);
}
BackupIndex++;
/* Set the LCD Back Color */
LCD_SetBackColor(White);
/* Reinitialize Button_State variable */
Button_State = 0;
}
/* TAMPER button is pressed */
else if (Button_RTC == RTC_TAMP)
{
/* Set the LCD Back Color */
LCD_SetBackColor(White);
LCD_SetFont(&Font16x24);
/* Clear LCD line 5 to 9 */
for (i=0; i < 5; i++)
{
/* Clear all the LCD lignes from 3 to 7 */
LCD_ClearLine(LINE(3+i));
}
/* reset Counter */
BackupIndex = 0 ;
/* Enetr to idle */
StartEvent =0x0;
LCD_SetFont(&Font12x12);
RTC_Time_InitDisplay();
LCD_SetFont(&Font12x12);
LCD_ClearLine(LINE(16));
LCD_ClearLine(LINE(17));
/* Enable Tamper interrupt */
RTC_ITConfig(RTC_IT_TAMP, DISABLE);
/* Enabale the tamper 1 */
RTC_TamperCmd(RTC_Tamper_1 , DISABLE);
/* Reinitialize Button_RTC variable */
Button_RTC = 0;
}
}
}
