基于STR750的RTC程序

介绍：

This test program is used for RTC test. The LCD will display as below when running the program:
STR75x DEMO
xx.xx xx:xx:xx
The xx show month, date, hour, minute and second respectively and real-time refresh.
If the program set the time to be 00:00:00 and alarm time to be 00:00:10, the buzzer will ring every ten second after the program running.
Note: The buzzer switch (JP14) needs to put through.

本例程演示了RTC的功能，利用RTC的秒中断更新RTC在液晶屏上的显示值，并设置10秒后产生RTC警告中断，此时会使蜂鸣器响一段时间后停止。

The RTC example program is available for several targets:
Simulator: uVision Simulator for evaluation
STR750:    Embest STR750 Evaluation board with ULINK2 debugger
           - Application is loaded to internal Flash.