键盘显示的全教程，非常详细很有帮助，值得一下

8051精品实例8051精品实例

在FPGA或CPLD上实现的一中非常实用的倍频电路，只要输入频率高，精度就很高-the CPLD or FPGA to achieve a very practical frequency circuit, as long as the input frequency, on the high precision

ofdm中几种常用的调制方式的调制和解调程序，包括：BPSK、QPSK、16QAM、64QAM-modulation

在OFDM系统中，用于均衡的一种堆算法的设计-In OFDM system, for the balanced design of a heap algorithm

VB与台达产品的通信,主要用工业控制用.有很好参考值.-VB and Taiwan for the communication products, mainly industrial use. Good reference value.

PDM系统持久状态管理分析,这是一个开发CORBA中间件方面的学术讨论报告，比较权威。是关于CORBA与数据库对接方面的文档。也是CORBA编程规范的剖析。-PDM system lasting state of management analysis, which is a development of the CORBA middleware academic discussions, authoritative. CORBA is on the docking with the database files. CORBA is a standardized programming analysis.

IBM websphere 的PORTAL实现-IBM websphere achieve the PORTAL

一个基于互联网进行收听电台节目的VB.NET源代码，这个代码比较好，支持自己增加删除等维护电台列表，格式为XML格式，自定义电台快捷按钮，支持自定义皮肤颜色，可以收听很多国外的音乐电台，大家可以参考-Based on the Internet to listen to radio programs VB.NET source code, this code is better, to support themselves, such as the maintenance of radio delete the list, the format for the XML format, custom radio button quickly to support the custom skin color, you can listen to a lot of foreign countries music radio stations, everyone can refer to

chipcon的cc2430芯片基本操作的全部源代码，估计对相关人士比较重要的-chipcon cc2430 the basic operation of the chip all the source code, estimated to those more important

中断和线反转 结合键盘扫描程序数码管上显示的0-9的显示代码-key scan 4X4 interuppt