1. OS版本为2.76

2. 使用Timer0的比较匹配中断为系统定时，频率为100Hz

3. 三种临界代码保护方式均可以使用，在OS_CPU.h里直接设置即可



如果安装了WinAVR20050214，则直接运行start.bat，输入make all即可开始编译。

如果需要在AVRStudio仿真，运行make extcoff后即可生成调试所需的cof文件。-1. OS Version 2.76 2. Timer0 use of matching interruption of the system regularly. frequency of 100 Hz 3. Three ways to protect critical code can be used, In OS_CPU.h Lane will be installed directly if installed WinAVR20050214. Operation start.bat direct importation make all begins compiler. If the AVRStudio simulation, After running make extcoff can generate the necessary debugging cof document.