一个俄罗斯方块的源代码，用C语言写的，可以运行。

winbond的w77e58双串口测试-the dual serial test

步进电机的c程序例子,基于单片机的一个例子.-Stepper motor c program examples, an example based on single chip.

AVR 系列单片机 C 语言开发指南。2003年出版，有必要请购买原版。-AVR MCU C language design guide.

利用89S52为核心实现的IDE-USB转接器 现在已经实现了主要功能：可以读取文件和复制文件。不支持格式化硬盘功能。 不过速度比较慢，我从本地硬盘复制文件到移动硬盘里去，速度只有50KBytes/S， 因为单片机速度不快，内存又少，USB1.1的速度也不快。另外，代码写得不够好 压缩包内有线路图-89S52 realize use as the core of the IDE-USB adapter now realize the main function: You can read the files and copy files. Reformat your hard disk does not support the function. More slowly, however, I copy files from the local hard disk to a mobile hard drive into a speed only 50KBytes/S, because of slow single-chip, memory less, USB1.1 speed is not fast. In addition, the code written is not good enough compression packages have circuit diagram

具有固定的“红灯―绿灯”转换间隔，并自动切换。它们一般由“通行与禁止时间控制显示、红黄绿三色信号灯和方向指示灯”三部分组成。在交通灯的通行与禁止时间控制显示中，通常要么东西、南北两方向各50秒；要么根据交通规律，东西方向60秒，南北方向40秒，时间控制都是固定的。交通灯的时间控制显示，以固定时间值预先“固化”在单片机中，每次只是以一定周期交替变化。-having fixed the "red light-green light" switch partitions, and automatic switching. They are generally from "prohibiting access and time control, red-yellow-green lights and direction indicator" is composed of three parts. Traffic lights in the passage of time and prohibit control indicates that things are usually either the north-south direction of the two 50 seconds; either on the basis of traffic laws, an east-west direction 60 seconds, 40 seconds north-south direction, the time control are fixed. Traffic lights to the time control, a pre-fixed time value "cured" in SCM, each is a certain cycle alternation.

自行开发的51单片机电子钟程序，且带有上位机通讯的功能。-self-developed electronic bell 51 SCM procedures and communication with PC functions.

本文介绍了一种独特的AVR单片机和计算机进行USB通信的方法-This article describes a unique AVR MCU and USB computer communication methods

单片机相关资料，应该是初学者的良师益友。-SCM-related information, should be a mentor for beginners.

Keil_AGSI_SDK: 这是一个广泛使用的Keil单片机IDE平台软件仿真插件(AGSI)开发的官方SDK资料包,内含DLL插件范例和开发自己的仿真DLL插件所必须的包含文件,同时资料中还含一个48页的详细介绍如何开发此类插件的PDF指南-Keil_AGSI_SDK: This is a widely used Keil Singlechip IDE plug-in software simulation platform (AGSI) official SDK development kit, containing examples and DLL plug-ins to develop their own simulation DLL plug-ins necessary to include file, while information also containing a 48-page detailed introduction how to develop such a plug-PDF Guide

用于步进电机的驱动.可以通过输出信号来控制步进电机的转速和角度控制.-For stepper motor driver. Can output signals to control the stepper motor speed and angle control.