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具有关机记忆功能的定时器程序，工厂生产流水线用。-With memory function timer shutdown procedures, factory production lines to use.

通过51控制8155，再将LED和键盘连接到8155上，来实现LED和键盘的正常工作

常见的debug命令,与大家共同分享一下-common debug orders, we share common

该课程设计使用了三块接口芯片，8253、8255、8259；在程序中需要对8255芯片的控制口进行修改，改成自己所用实验板的端口-The course is designed to use the three interface chip, 8253,8255,8259 in the program need to control the port 8255 to modify the chip, into his own experimental port board

实现图书查询等功能，可以帮助新的同学完成毕业的课程设计-Book Search features to achieve, you can help the new students to complete graduate course design

用8155扩展51单片键盘控制-8155 with 51 single extended keyboard control

avrcode for xmodem crc software

此头文件定义配置、寄存器和其他有用的文件

全国二级c语言公共基础知识总结，由专业培训机构的专业老师编写，包含了近几年来的二级考试公共基础知识点，分点总结，结合每年题型，非常全面，专业，实用。

view 下窗口切分，适合多文档始创，分厂好用-view under the window segmentation for multi-document, Pioneer, factory-to-use