一个简单的linux下的客户端，有什么问题请多指教！

定时流水灯 定时流水灯 -liushui

一、 使用键盘显示接口芯片8279接收按键键值，并在七段数码管上显示出来，通过判断键值进入相应音乐播放处理程序。在音乐播放程序中，使用定时器/计数器8253的计数器2，使其工作在方式¬ ¬ 3―方波发生器，通过查表依次取出乐曲频率值送入计数器作为计数初值，经out2输出方波，驱动扬声器发出不同频率的声音，在每个音阶之间加入相应的延迟时间，即实现了音乐的播放。-First, the use of a keyboard display interface chip receive keys keys 8279, and Seven-Segment LED display, through to determine the corresponding music player keys to enter the treatment program. Procedures in the music player, use the timer/counter 2 counter 8253 to work in the way ? ? 3- square-wave generator, followed by out music through the look-up table values into the counter as a frequency count of the initial value, the output side out2 waves, driven loudspeakers of different frequency sound, in between each scale by adding the appropriate delay time, namely, the realization of the music player.

C51 LCD Keyboard driver

AD9852驱动，可以产生任意波形。若果有不对的地方，请高手们批评指正。-AD9852-driven, can generate arbitrary waveform. If there is something wrong, please correct me experts have criticized.

汇编编写的S52单片机控制的LED数码管灯显示2位16进制程序-compilation prepared by the S52 MCU control of the LED digital display of lights two 16-band procedures

输入高电压时直流无刷电机的控制程序,可使用在家庭,工厂等没有直流电源的地方-Importation of high-voltage brushless DC motor control program, you can use in the home, factories, and other places there is no DC power supply

vb编写的写字板-vb prepared by the tablet

ST套件上0-99秒计时，比较准的！(由网友wonderfulsf提供) ST套件上0-99秒计时，比较准的！ 这是我学习PIC完成的第一个程序烧在了ST套件上不错,0-99秒计时 如果用MPLAB模拟,用stopwach计时非常准 ST套件上0-99秒表程序,根据原0-99键控程序上改写的,初学练习-ST package on time 0-99 seconds, more accurate! (Wonderfulsf provided by users) ST package on time 0-99 seconds, more accurate! This is my PIC study completed the first procedure to burn in the ST package on good ,0-99 seconds time if MPLAB simulation, with very stopwach time on quasi-ST Suite 0-99 stopwatch program, according to the original 0-99 keying procedures on rewriting, and learning exercises

此程序完成功200HZ的固定频率,稳定性很高,波形失真度小,如果要想产生固定频率,这个程序是最好的选择!-success of this procedure 200Hz End of fixed-frequency, high stability, waveform distortion small, if they have a fixed-frequency, the procedure is the best choice!

当然他好通惠家园进45一任何牛肉汤教育局人格温热图5一45 王汝刚奖金额汤旺河安徽认为他易货交易精华-Of course, good通惠家园him into any one of 45 beef soup warm personality Fig.5 Education 1 45王汝刚prize money Tangwang River in Anhui consider him the essence of barter transactions