倒记时电路 用在交通灯

微机原理课程设计，设计一段音乐，根据音调在发光二极管上对应闪烁，并在七段数码管上显示已播放时间。-Computer Principles of curriculum design, the design of a section of music, according to pitch in the corresponding LED flashes, and Seven-Segment LED display has been broadcasting time.

通过本程序，学习者可以使用自己的a51和C51程序T89C51CC01学习看门狗功能。

利用CCS实现IIR滤波器的功能，保证正确。-The use of CCS realize the function of IIR filter, and ensure the correct.

本来是编译原理的作业，作业布置到了语义分析，想下载贵网站的源码参考参考，发现没有Money，只能上传源码看能不能行。。。输入文件是test1.pl0和test2.pl0，输出文件是Error_1.txt和Error_2.txt。写了这么多不知道有没有50个字，上传一下试试哈~

利用8051芯片制作一个数字电压表，能够测量电压并用4段数码管显示。-Manufactures a digital voltmeter using 8051 chips, can survey the voltage and demonstrate with 4 sections of nixietubes.

本人写的CS1821测试DEMO程序，CS1821兼容HT1621-I write DEMO CS1821 test procedures, CS1821 compatible HT1621

定时同步是UWB通信系统中至关重要的问题，定时偏差和抖动将严重影响接收机性能。一般定时同步分为捕获和跟踪两个阶段。在捕获阶段，要求接收机快速搜索信号到达时间，并根据搜索结果调整接收机定时.-Timing Synchronization UWB communication systems is of vital importance to the issue, timing error and jitter will seriously affect the receiver performance. Timing Synchronization generally divided into two stages to capture and track. In the capture stage, the request receiver Quick Search signal arrival time, and adjust search results according to the receiver from time to time.

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此文件应用PIC16F913实现LCD控制,本程序具有加,移,设置三键功能,可以在仪器仪表等方面应用.-Application of this document PIC16F913 realize LCD control, this procedure has the added, changed, set three key features, such as in the application of instrumentation.

一个好用的整数分频电路 保证你喜欢 能够实现对任意整数的分频电路设计-a handy integer frequency divider circuit assures you like to be able to achieve arbitrary integer frequency circuit design