一篇介绍键盘接口的英文文档，讲得很详细，做ps/2设计的可以参考...

the verilog model of async_fifo.

因特殊的业务需要，某些电话交流需要在第三方的监视下进行，假定某电话交流由甲乙丙三方发起，丙为监听控制方，当甲开始说话时，丙可以不允许乙听，并且开始录音，当甲说完时，丙确定是否可以让乙听，如可以。给乙放录音，当乙说话时，重复以上操作。-because of special operational needs, some telephone exchanges in the surveillance of third parties under the assumption that a telephone exchange was launched by the tripartite B, and C to monitor the controlling party, began to speak when the A, B C can not listen, and began recording at the end when A and C to determine whether or not they can B listen, if we can. B recordings to release, when the B words, to repeat the operation.

CE上用C++写的可以播放GIF动画的例子，可以随便在Windows和Mobile上用-CE using C++ Writing can play GIF animation example, you can easily use Windows and Mobile

SYMPCHUNK sets the number of symbols demodulated at once with a constant carrier frequency and symbol timing offset. This is a fundamental decoder parameter that establishes its carrier and symbol timing tracking bandwidth. Set it too low and the demodulator can"t accurately determine carrier frequency and symbol timing on a noisy signal. Set it too high and the demodulator may not be able to track large symbol rate offsets caused by Doppler shift and/or A/D or spacecraft clock errors. Or it might have trouble tracking high rates of change in the carrier frequency due to Doppler acceleration.The current value of SYMPCHUNK is 4*N1 = 512, where N1 = 128 is the order of the convolutional interleaver. 512 symbols is 512 milliseconds at 1000 symbols/sec, giving a frequency/time determination SNR that is 10*log10(512) = 27 dB greater than the Es/N0, not counti

STM32F205串口通信程序 STM32F205串口通信程序

fifty years of coding theory，一篇经典的讲述纠错编码的IEEE文档，适合纠错编码读者阅读。里面详细讲述的纠错编码的发展史，包括BCH、RS、卷积码、Turbo码等编码-fifty years of coding theory, a classical error-correcting code on the IEEE document, suitable for error-correcting code readers. Which describe in detail the history of the development of error correction coding, including BCH, RS, convolutional codes, Turbo codes encoding

这是一个基于空时分组编码的MIMO_OFDM通信系统的仿真设计。此系统包括QPSK调制解调，IFFT调制，空时编解码，基于训练符号的信道估计等通信模块。

本课题应用DELPHI作为开发环境设计了针对对西门子公司的S7-200PLC的串口调试程序，并能在界面上显示多时段交通灯控制系统PLC控制程序所分配的存储区，实时读取各存储区的当前状态。-This application development environment design for a DELPHI of Siemens company in the serial of S7-200 PLC program, and can debugging interface display more time traffic control system, PLC program allocation of storage area, read the current state of the store.

曼彻斯特编解码Verilog代码 .zip-Manchester codec Verilog code. Zip

SSB_AM的解调程序，基于matlab的通信系统仿真系列。供刚接触到matlab的朋友使用-SSB_AM demodulation process, Matlab-based communications system simulation series. For begin to friends using Matlab