SPI Interface Data Reading a compilation of program memory. Emulator can be used...

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.

全屏幕模拟时钟的C源程序-full-screen clock simulation of C source

用于并行接口实验，运行环境为Winxp Xingyan 集成环境-Parallel Interface for the experiment, operating environment integrated environment for Winxp Xingyan

这是一个汇编代码简单修改的工具，还算是蛮经典的一个。-This is a simple modification of the tool assembly code, is actually quite pretty classic one.

这是关于有刷直流电动机PWM控制方案的源码，上面那个是无刷电动机的PWM控制方案，芯片都是TI公司的TMSLF2407 -This is a brush DC motor on PWM control of the program source, the above is that the PWM brushless motor control program, TI

一个用汇编写的时钟动态程序，较有学习价值-a compilation was made with the clock dynamic process, learning more value

无阿斯顿温热任务二玩儿玩儿为绕弯儿玩儿玩儿玩儿我额外人-请求权完全俄文而且为轻微全文请问请问全文请问千万

Dos下屏蔽热启动,想要重启的话先按下Ctrl+Alt+Del，松开Del键，然后按R键则重 启，按Q键则关机-Dos under thermal shielding started, and wanted to resume the first pressing Ctrl-Alt-Del, loosen Del keys, then R button will resume by Q keys were shutdown

霍夫曼编码器的实现（霍夫曼编码不具有唯一性，通过建立霍夫曼树实现）、实现图的遍历（前—中—后等不同顺序）、教学计划编制问题、快速排序、优先队列与堆

430产生38kzh波形，430产生38kzh波形-430 have 38kzh waveform 430 generated waveform 38kzh