使用1602_LCD AT89S52 18B20实现的温度报警，时间可调显示，

一天可设三个闹钟，八首音乐，一个秒表，

全汇编实现，程序差不多写满8K BYTES 了



；硬件电路比较简单，主要靠程序上的实现



完成时间____2006\09\27\sml -　Use 1602_LCD AT89S52 18B20 achieved temperature alarm, time adjustable display,　a day can be set three alarm clocks, eight music, a stopwatch,　the whole assembly to achieve, the program had almost filled with 8K BYTES　hardware circuit is relatively simple, mainly relying on implementation of procedures　completion ____2006 \ 09 \ 27 \ sml