触摸屏的工作原理及典型应用，很好的参考资料！

一键多功能程序，适合初学者参考，经过验证，正确实现了功能！-One key multi-functional procedures, suitable for beginners and reference, after verification, the correct realization of the functional!

单片机USB接口驱动,适用于AT89C51SND1C-SCM USB drive, applicable to AT89C51SND1C

一种基于高速逻辑器件（触发器，计数器和门电路等）控制的，可与各种单片机系统友好连接的高速A/D转换采集系统。-Based on high-speed logic device (flip-flops, counters and gates, etc.) control can be friendly with a variety of single-chip microcomputer system to connect high-speed A/D conversion acquisition system.

键盘测试程序，包括显示 、去抖动、扫描、检测，（8051或8031）-keyboard testing procedures, including, to jitter, scanning, detection, (8051 or 8031)

定时器中断实验代码， 定时器3进行0.1秒定时，每0.5秒改变一次P2,P3口的值以产生走马灯效果。-timer interruption experimental code, three timers for 0.1 seconds regularly, every 0.5 seconds to change a P2, P3 to the values I have merry-go-round effect.

80C51单片机中字符型液晶1602显示实验的源程序，里面包含了1602的datasheet。-80C51 MCU 1602 character LCD display source experiments, which contains the 1602

Keil70完全安装文件-Keil70 complete installation

MCS51单片机C语言实现画圆弧坐标的源程序-MCS51 C Language painting arc coordinates of the source

usb接口应用文件供参考 usb接口应用文件供参考-usb interface application documents for reference us b interface application documents for reference

PIC单片机 液晶 组成的万年历，带有protues仿真-PIC, composed of single-chip LCD calendar with protues Simulation