stc89c52 单片机测试c程序，课堂测试通过，内置看门狗测试。-stc89c52 SCM test c program, classroom tested, built-in watchdog test.

基于STC89C52单片机的C语言源码 有数码管静态显示，秒表-Based on C language source code STC89C52 MCU control with digital static display, stopwatch, etc.

STC89C52流水灯源码，这里并非简单的流水灯源码，有目录结构，把各个文件模块化并分开放，使工程管理起来简单，大家可以参考，呵呵。-STC89C52 light water source, the water here is not a simple light source, a directory structure, the modular and open-minded individual files, so that the project management seems sim