nds on the famous DSOrganize 2.8 latest source code. Is worth studying.

在DOS系统本身是不支持多任务的。此源程序为在DOS下实现多任务的简单例程-DOS system itself does not support multi-tasking. This source of the DOS multi-task under the simple routines

用过EMC芯片的朋友都知道EMC的指令系统属于精简指令集（57条指令），这在做一些小程序时是非常方便的，但是如果程序较大，你就会发现，好多精力都被浪费在编写一些相似的指令上了，能否从中解脱出来呢？其实，如果你能善用EMC的宏指令，往往提高写程序的速度，并增加程序的可读性和可维护性-EMC Friend chips used all know EMC directive system are reduced instruction set (57 instructions), which make some small program is very convenient, but if a larger program, you will find that a lot of energy have been wasted in the preparation of some similar instructions on the can extricate themselves from it? In fact, if you can make the best use of EMC macros are often written procedures improve the speed and increase the program readability and maintainability

Linux C编程一站式学习,亚嵌培训教材，非常详细。-Linux C programming a one-stop study, Asia embedded training materials, very detailed.

对于上位机而言： 1、建立项目；  2、在项目中插入MSComm控件   3、利用ClassWizard定义CMSComm类控制变量  4、在对话框中添加控件     5、添加串口事件消息处理函数OnComm()  6、打开和设置串口参数  7、发送数据   8、发送十六进制字符   9、在接收框中以十六进制显示  对于下位机来说：只需要将串口通信程序下载到下位机即可，不过在连接串口猎人时一定要匹配端口号和波特率。 

YAFFS的升级版本YAFFS2，很好的支持NANDFlash的文件系统-YAFFS updates YAFFS2 good support NANDFlash file system

以模块化的形式给出i2c总线模拟编程软件，不管什么芯片，只要是i2c总线，不加改动或改动很少就可使用-in a modular form is i2c Bus simulation software programming, no matter what the chip, as long as it is i2c bus, without change or modification can be used rarely

Sealing company unipolar stepper motor controller stepper motor to achieve synchronization.

UCLINUX字符驱动源码-character-driven source OS

研勤公司2440开发板的测试程序，包括所有s3c2440模块的测试，推荐下载-research service company 2440 development board testing procedures, including all s3c2440 module testing, download

使用面向对象方法完成“快速拼写检查程序”的分析、设计和实现过程。快速拼写检查程序基本要求说明如下： 1.进行拼写检查的文件以文本文件形式存储于外存上；2．只检查文件中英文单词的拼写错误；3．单词是用字母（a…z或A…Z）定义，任一非字母字符作为分隔符；4．判断单词拼写正误的依据是词典，词典以文本文件形式存放于外存上；5．词典文件第1行为词典的名称，以后每一行存放一个单词；6．输出结果以文本文件形式存储，其格式为：第1行：被拼写检查的文件名 + 词典名 第2行后的每一行： 出错单词 位于第x行7．设计一个合理的GUI，注意GUI界面类与功能类的关系应比较松散。-use of object-oriented method to complete the "quick spell-check procedure" in the analysis, design and implementation process. Rapid screening procedures spelling basic requirements as follows : 1. Spell-checking documents to text files stored in the form of Disk; 2. Just check the documents in both Chinese and English word spelling errors; 3. Word is letters (a z or A ... ... Z) definition, as a non-alphabetic character as the separator; 4. Judge spelling error is the basis of dictionaries, dictionaries in the form of text files stored in external memory; 5. Dictionary document acts of a dictionary of names, each line deposited a word; 6. Output form of a text document storage, its format : Line