常用pcb库文件，方便进行电路开发，protel99格式的

USB2.0原理与工程开发光盘，包含源代码。-USB2.0 principles with the development of CD-ROM project, including the source code.

51系列单片机控制的微打驱动程序-51 series monolithic integrated circuit controls micro hits the driver

Atmel1508的资料，大家看看阿，不错哦，好东东阿。好东东阿。-Atmel1508 information, we look at Ah, yes, oh good Dongdong A. A good Dongdong.

一个基于STC89C52的单片机程序，可以通过按键来不停发送100ms（时间可调）的脉冲，通过定时器控制-STC89C52 microcontroller-based procedures, can be sent through the button to stop 100ms (time adjustable) pulse, through the timer control

利用8051单片机驱动MAX038信号发生模块，实现信号发生器功能。-8051 drivers to use MAX038 signal modules, function signal generator realize.

时钟芯片12c887非常实用，现奉上它的程序仅供参考。-12c887 chip clock is very useful, now offering its program is for reference only.

at24c01和02是串行存储器的经典，学会并应用它对与工业或者学习都有极大的帮助。因此我在此上传它的原理图及其程序。-at24c01 and 02 is a classic serial memory, learn and apply it to industrial or study has a great help. Therefore, I would upload its schematic diagram and its procedures.

51单片机及其C语言程序开发实例第9章节-51 SCM and its C language programming examples of the first 9 chapters

T9 输入法. 可以方便地移值到单片机上使用. 可实验T9输入法.-T9 input method, which can transfer to singlechip system conveniently. It can implement the T9 input method.

二进制代码的头文件-binary code files