LDPC coding research and hardware implementation of LDPC codes on a very good ar...

一个基于485总线的抢答器系统的设计文档，参加电子竞赛的论文。-based on a 485 bus Responder system design documentation, to participate in the electronic race theses.

verilog HDL显示模块 verilog HDL显示模块-verilog HDL display module

这个是在ＯＰＥＮＣＯＲＥ上收集的wishbone总线的开发说明和指导，随着电子设计开源ＩＰ的大量应用，wishbone总线也越来越普及。-This is collected in OPENCORE Wishbone bus and guide the development of note, with the electronic design of a large number of open source IP applications, wishbone bus is also becoming increasingly popular.

dmx512 code for learn

详细介绍ARM系统的开发流程，内容翔实，文件格式为PDF，便于阅读-Detailed introduction ARM system development process, informative, file format for PDF, easy-to-read

yampp的MP3资料 非常好大家来看一看-yampp MP3 very good information for everyone to see

介绍了在嵌入式Linux操作系统下嵌入式GUI的图形抽象层GAL的地位及其设计思路,研究了GUI的设计逻辑,着重阐述了如何在中低端设备上利用FrameBuffer来为上一层提供更加通用的图形接口。主要在色彩转换、利用FrameBuffer进行矩形绘制、内存映像空间的操作以及窗口Z序等方面做了深入的探讨。目前,己经将图形图像部分的研究成果成功运用于福建海媚科技的嵌入式KTV系统中,并积极地向其它嵌入式系统中进行移植。-Introduced in the embedded Linux operating system embedded GUI graphics abstraction layer GAL

这是一份关于网络工程的课程设计报告详细介绍布线的方案-This is a network works on the design of a detailed report on the program Cabling

1．能正常计时。显示模式分为24小时制和12小时制。其中12小时制须显示上、下午。“时”、“分”、“秒”都要显示。 2．具有快速校准时、分、秒的功能。手动校准，用一个功能键选择校时、校分功能，用另一功能键调校对应时、分数值。 3．整点自动报时。在离整点10s时，便自动发出鸣叫声，步长1s，每隔1s鸣叫一次，前四响是低音，最后一响为高音，最后一响结束为整点。 -1. To resume normal time. Display mode is divided into 24-hour and 12-hour clock. Including 12-hour clock to be displayed on the afternoon. "Time", "sub", "seconds" must be displayed. 2. Fast calibration, minutes and seconds functions. Manual calibration, using a function button to select the school, the school hours functions, corresponding with another function key set, the score values. 3. The whole point of automatic timekeeping. The whole point away from the 10s, they automatically send calls, step 1s, at intervals of 1s tweet once, the first four bass sound is the last one for the treble ring, ring the end of the last one for the whole point.

在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct