c51的usb的通信程序库，支持51兼容的单片机和pdusbd12接口芯片

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vb串口通信调试,能够进行16进制和字符的数据传输。-vb serial communication debugging, can be 16 hexadecimal and character data transmission.

Philips SC16C554串口使用基本协议-Philips SC16C554 string mouth use basic agreement

430单片机,键盘实验源码,实验通过调试-430 single-chip microcomputer, keyboard-source experiment, experimental, through debugging

在8位单片机中对32位数进行开方运算的汇编子程序-In 8-bit MCU in 32-digit prescription for computing the compilation of subroutines

这是参加电子设计大赛时的作品：红外遥控小车：用红外线通过一块AT89S52单片机发射信号即编码，并用红外接收头接收信号；接着再用另一块AT89S52单片机对红外发射出的信号编码进行解码，最后再用一块AT89S52单片机用解码所得码值编写程序后驱动步进电机。步进机功能启动后不仅能使受控小车向前后左右四个方向前进和转弯，而且还能控制小车再地上转动并留下方形或圆形等形状。-This is the time to participate in Electronic Design Contest works: infrared remote control car: Using infrared transmission signal through an AT89S52 microcontroller that is encoded and used infrared receiver to receive the first signal and then using the other an infrared emitting MCU AT89S52 code and decode the signal and finally an AT89S52 microcontroller then proceeds with the decoding key value of the preparation of procedures to drive a stepper motor. Stepper machine function activated not only make the car forward in a controlled direction and after about four turns, but also to control the car and then turned and left the ground such as square or round shapes.

全面介绍了高质量PCB设计技巧，共为8章。-A comprehensive introduction to high-quality PCB design techniques, a total of 8 chapters.

DES算法的ST7单片机实现程序-DES algorithm ST7 MCU procedure

由单片机组成的仿三菱可编程控制器 能完成所有逻辑控制(即PC)功能，并对机床全部输入信息进行处理；具有最优性能价格比-Composed by the single-chip programmable logic controller like Mitsubishi to complete all the logic control (ie, PC) function, and machine tool for processing all input information with optimal price-performance ratio

液晶显示器LCD1602的驱动。适合于51单片机系统。-LCD1602 LCD driver. Suitable for single-chip microcomputer system 51.