一个arm7开发板上的定时器实验程序，此程序用c语言开发。

1、完整的串口通信源程序； 2、可以在此基础上完善或修改本程序；

FLASH读写操作，实现对flash空间的擦除和烧写。-FLASH read and write operations, the realization space of flash erase and programmer.

在s3c44b0x运行的俄罗斯方块游戏 解压密码：arm520-A Russion Diamonds Game run at s3c44b0x. decompress password:arm520

这是支持MF RC500 MIFARE 读写集成电路IC的有关射频设计的应用笔记。意在提供对MIFARE 射频接口（ISO 14443A）所需的理解来设计具体天线应用和匹配电路，为了使无接触MIFARE卡通信有最优表现。本文给出了系统的RF部分背景，以及如何为标准应用设计和调试天线的过程概述。详细说明了两种不同的天线和匹配概念以及它们的设计实例。还描述了完整的调试天线的步骤。作为附件的一部分，有兴趣的读者会发现RF接口的详细理论描述-This is to support reading and writing IC MF RC500 MIFARE RF IC design of the Application Notes. Intended to provide MIFARE RF Interface (ISO 14443A) designed to understand the requirements of specific applications and antenna matching circuits, in order to make contactless MIFARE cards have the best communication performance. In this paper, the RF part of the background of the system, as well as standard application for the design and debugging process of an overview of the antenna. Detailed description of the two different concepts of antennas and matching, as well as their design. Also a complete description of the steps to debug the antenna. As part of the annex, interested readers will find the detailed theory of RF Interface Description

基本程序，说明如何使端口引脚作为输入，并通过它连接交换机。。连接一个LED，七段；使用中断。LCD接口。

实验(十四)液晶12864 实验 带字库的液晶，含有文本和图形两种模式。 文本即发送汉字的对应编码-my english shi bad

avrusb源码，好--Source code for avrusb.

HT1380实时时钟驱动程序-HT1380 real-time clock driver

一个对CARD进行的管理原程序代码，很好很好的一个代码-CARD a procedure for the management of the original code, a code of good very good

清华魏永名miniGUI dos下的源码-Qinghua WEI Yong-dos were miniGUI the source