/**
* @brief Returns the date entered by user, using demoboard keys.
* @param None
* @retval None
*/
void Date_Adjust(void)
{
/* Display the current Date */
Date_Display();
/* Change the current Date */
Date_Regulate();
}
/*******************************************************************************
* Function Name : Date_PreAdjust
* Description : Pre-Adjusts the current date (MM/DD/YYYY).
* Input : None
* Output : None
* Return : None
*******************************************************************************/
static void Date_PreAdjust(void)
{
uint32_t tmp = 0, pressedkey = 0;
/* Clear the LCD */
LCD_Clear(White);
LCD_SetBackColor(Blue);
LCD_SetTextColor(White);
if(BKP_ReadBackupRegister(BKP_DR1) != 0xA5A5)
{
LCD_DisplayStringLine(Line7, "Time and Date Config");
LCD_DisplayStringLine(Line8, "Select: Press SEL ");
LCD_DisplayStringLine(Line9, "Abort: Press Any Key");
while(1)
{
pressedkey = ReadKey();
if(pressedkey == SEL)
{
/* Adjust Time */
Time_PreAdjust();
/* Clear the LCD */
LCD_Clear(White);
return;
}
else if (pressedkey != NOKEY)
{
return;
}
}
}
else
{
/* Display the current date */
Date_Display(date_s.year, date_s.month, date_s.day);
/* Change the current date */
Date_Regulate();
BKP_WriteBackupRegister(BKP_DR2, date_s.year);
tmp = date_s.month << 8;
tmp |= date_s.day;
BKP_WriteBackupRegister(BKP_DR3, tmp);
BKP_WriteBackupRegister(BKP_DR4, daycolumn);
BKP_WriteBackupRegister(BKP_DR5, dayline);
}
}
/**
* @brief Setting up the time by Serial USART1.
* @param None
* @retval None
*/
void RTC_SetTimeBySerial(void) {
if (BKP_ReadBackupRegister(BKP_DR1) != 0xA5A5) {
/* Backup data register value is not correct or not yet programmed (when
the first time the program is executed) */
printf("\r\n * Begin RTC initialization");
/* RTC Configuration */
RTC_Configuration();
printf("\r\n * Please set calendar");
/* setup year, month, date in 4, 2, 2 digits each */
Date_Regulate();
printf("\r\n * Please set time");
/* Adjust time by values entered by the user on the hyperterminal */
Time_Adjust();
BKP_WriteBackupRegister(BKP_DR1, 0xA5A5);
} else {
/* Check if the Power On Reset flag is set */
if (RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET) {
printf("\r\n * Power On Reset occurred....");
}
/* Check if the Pin Reset flag is set */
else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET) {
printf("\r\n\n * External Reset occurred....");
}
printf("\r\n * No need to configure RTC....");
/* Check whether we've written year or month or day value before */
if(BKP_ReadBackupRegister(BKP_DR2) == 0x0000 || BKP_ReadBackupRegister(BKP_DR3) == 0x0000) {
/* setup year, month, date in 4, 2, 2 digits each */
Date_Regulate();
} else {
uint16_t YY, MD;
YY = BKP_ReadBackupRegister(BKP_DR2);
MD = BKP_ReadBackupRegister(BKP_DR3);
int month, day;
if( (MD / 1000) % 10 == 0) {
month = (MD / 100) % 10;
} else {
month = (MD / 1000) % 10 + (MD / 100) % 10 ;
}
if( (MD / 10) % 10 == 0 ) {
day = MD % 10;
} else {
day = MD - (MD / 100) * 100;
}
printf("\r\n\n Previous written calendar data found !");
printf("\r\n Written values are as follows :");
printf("\r\n Year : %d, Month : %d, Day : %d", YY, month, day);
printf("\r\n Above calendar datas will be used to set current calendar automatically\r\n");
TranslateIntoYear(YY);
TranslateIntoMonth(month);
TranslateIntoDay(day);
}
/* NVIC MUST BE CONFIGURED before branch into power on reset */
NVIC_InitTypeDef NVIC_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
/* Configure one bit for preemption priority */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
/* Enable the RTC Interrupt */
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);
NVIC_InitStructure.NVIC_IRQChannel = RTCAlarm_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0xFF;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* Configure EXTI Line17 (RTC Alarm)to generate an interrupt on rising edge */
EXTI_ClearITPendingBit(EXTI_Line17);
EXTI_InitStructure.EXTI_Line = EXTI_Line17;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_Init(&EXTI_InitStructure);
/* Wait for RTC registers synchronization */
RTC_WaitForSynchro();
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
/* Alarm in 3 second */
//RTC_SetAlarm(3);
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
/* Enable the RTC Second, RTC Alarm interrupt */
RTC_ITConfig(RTC_IT_SEC || RTC_IT_ALR, ENABLE);
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
}
#ifdef RTCClockOutput_Enable
/* Enable PWR and BKP clocks */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
/* Allow access to BKP Domain */
PWR_BackupAccessCmd(ENABLE);
/* Disable the Tamper Pin */
BKP_TamperPinCmd(DISABLE); /* To output RTCCLK/64 on Tamper pin, the tamper
functionality must be disabled */
/* Enable RTC Clock Output on Tamper Pin */
BKP_RTCOutputConfig(BKP_RTCOutputSource_Second);
#endif
/* Clear reset flags */
RCC_ClearFlag();
}