如果你想学习C51的越快，这个资源也许会给你一个帮手。

89C51单片机精确定时详解-89C51 Elaborates on precision timing

基于单片机的IDE硬盘控制的研究与设计.简单的介绍如何读写IDE-IDE hard drives based on single-chip control research and design. Introduce how to read and write simple IDE

AT89C2051单片机的产品手册，非常详细的说明了AT89C2051单片机的性能参数、结构和原理。-AT89C2051 microcontroller product manuals, a very detailed description of the AT89C2051 MCU performance parameters, structure and principle.

一个有关EZ-USB FX2 系列CY7C68013的应用实例，68013与外围器件采用GPIF方式联结。-one of the EZ-USB FX2 CY7C68013 series of application examples, 68,013 with the external device used GPIF way link.

51单片机对IC卡读写程序，使用的卡的型号为SLE4442,有帮助就下。-51 microcontroller IC Card Reader right, the use of the card for the Model SLE4442, help on the next.

凌阳单片机（SPCE061A）IIC总线驱动程序-Sunplus Singlechip (SPCE061A) IIC bus driver

SST89C58的IAP功能进行在线下载程序的步骤-SST89C58 the IAP function for online download steps

实时时钟RTC4553的测试程序，编译环境为伟福6000，汇编程序-real-time clock RTC4553 testing procedures, compile environment for the 6,000-fu, assembler

4x5的键盘扫描,一个实用的单片机键盘程序-4x5 keyboard scanning, a practical single-chip microcomputer keyboard procedures

对单片机中的485协议在使用过程的规则和如何编程进行说明　-Of single-chip microcomputer in 485 agreement in the use of the process of programming rules and how to explain