自定义的USB设备单片机固件程序，基于PDIUSBD12 usb接口芯片

用ds18b20+ds1302+89s52做的时钟-With ds18b20+ Ds1302+ 89s52 make clock

c8051f020单片机比较器CP1使用-C8051F020 single-chip comparator CP1 use

STC单片机说明,与传统51比较,方便替代习惯于传统51的编程-STC Singlechip shows that compared with the traditional 51 to facilitate alternative programming accustomed to the traditional 51

ds1302的汇编语言编程实例，实现日历显示，包括详细的步骤说明-ds1302 examples of assembly language programming, the realization of the calendar display, including a detailed description of the steps

AP89042是不可从复录音的分段式语音芯片,对语音电路的开发人员有一定的帮助.-AP89042 is not from the sub-Minute recording voice chip, the voice circuits developers will help.

89C51 单片机I_O 口模拟串行通信的实现方法--Simulate I_O serial port communication in 89C51 SCM.

MCS-51单片机实用子程序库（2），WORD文档-MCS-51 microcontroller practical Subroutine Library (2), Word Document

这是本人最近几年所编写的串行通讯的代码集，可以供大家参考学习。-recent years prepared by the serial communication code sets, we can reference for learning.

一个单片机系统的驱动程序，附带了单片机系统的原理图。适合于硬件初学者的汇编编程学习。-an SCM system of the driver, accompanied by the SCM system diagram. Suitable for beginners hardware compilation of learning programming.

移动机器人摇杆手柄调速中(AD采集)，微控制器为MSP430，已成功调试用于机器人上！-Mobile Robot Control in the rocker lever (AD Acquisition), micro-controller for the MSP430, debugging has been successfully used on the robot!