在实验板上编程实现2009年日历和实时时钟：

1，时-分-秒（2位-2位-2位）显示

可通过键盘置入时间值。

2，可通过键盘置入日期值,在LED上从右向左滚动显示

年_月_日3次，如：



2008_01_20 2008_01_20



日期值随时钟进位改变，可用按键调出当前日期值滚动显示。

3，实现每日闹铃功能，闹铃时间可用按键设置。闹铃时蜂鸣器响12秒，可用按键中断蜂鸣声音。

4，实现预约提醒功能，提醒时间可用按键设置，提醒时滚动显示所设置预约时间 年_月_日_时_分_秒 三次。提醒采用不同的提示音表示-In the experiment on-board programming and real-time clock calendar 2009: 1 pm- hours- seconds (2-2 position-2) showed that the time value can be placed through the keyboard. 2 date value can be placed through the keyboard, scroll right to left in the LED display on the month in _ _ 3 times a day, such as: 2008_01_20 2008_01_20 date value into the bit clock to change at any time, can adjust the buttons to scroll the current date value. 3, to achieve a daily alarm functions, alarm time setting buttons are available. 12 seconds when the buzzer rang the alarm, can interrupt buzzer sound button. 4, to achieve an appointment reminder, reminder time set buttons are available to advise when the scroll display on the set appointment time _ _ month _ date _ _ minutes three seconds. Reminded that a different tone