聊天程序时一个程序开发者必须编写的了练习程序

Opengl Heightmap and Skybox implementation

根据笔记本是否用电池来自动关闭Vista 玻璃效果~~有助于了解CSharp 是如何调用系统类库-Notebook battery in accordance with whether or not to automatically turn off Vista glass effect ~ ~ help to understand how the call system CSharp Class Library

用来控制电机的转动，包括方向，速度等

电压可自由设定，也可直接设置DAC，两步配合操作，输出电压精度可达正负10mv

基于STM32F4的俄罗斯方块，改自网络已有程序，进行注释和调整。(Teris，based on STM32F4)

linux下多线程读写文件，读线程进行从一个文件里读取数据到循环队列缓冲区并且控制写指针，当循环队列有数据时写线程通知写线程从循环队列把数据取走写入另一个文件中。写线程控制写指针，当循环队列有数据时，就写入另一个文件中，并通知读线程我已经从文件中读取数据然后写到另一个文件中。

通过改变采样率来改变录音的语速，从而达到女人、男人。儿童、老人的声音的效果。需自行录制语音。

D3D开发的粒子系统应用，雪的效果逼真，算法经典。(D3D development of particle system applications, the effect of real snow, the classic algorithm.)

FriendlyARM English User Manual Chapter 4.4 Compile and Program uCos2

The LED clock consists of 60 LEDs which are placed circular around a common analog clock. The LEDs are used to display the seconds. Essential part of this circuit is the LED driver MAX7219 from Maxim. A datasheet is available on Maxim s homepage. The clock is controlled by the microcontroller AT89C2051 from Atmel. This microcontroller is clocked at a frequency of 12 MHz from which results a time base of 1 microsecond. Via software dividers one clock impulse per second is generated which is used for updating the LED display.