linux 系统 ds1337时钟芯片驱动及实验程序，arm 平台 linux 验证通过。-linux system ds1337 clock chip-driven and experimental procedures, Linux platform certification arm through.

12C887时钟芯片PDF，内带锂电池。内部RAM断电可保存10年。-A very old clock chip, PDF, with a lithium battery inside. Internal RAM power can be stored for 10 years.

单片机最小系统设计，主要有时钟和温度传感器以及键盘扫描芯片。-The software in WinCE is the main control module, and periphery single chip system is the assistant module. The system includes video capture, web server and single chip system, which can catch the real time temperature