SPI接口设计

直接序列扩频通信（主要包括BPSK调制和BPSK解调以及PN码的产生）(Direct sequence spread spectrum communication (including BPSK BPSK modulation and demodulation, and the PN code generation))

this is a Multiplier and Accumulate (MAC). written in VHDL

本程序是在AWGN下的LDPC码的仿真程序，本程序优点是译码效率高，速率很快，可以仿帧数很大的图。(the decoder for LDPC under the AWGN channel)

出租车vhdl程序，并带有testbench仿真程序，通过开始按键复位，然后根据行使信号进行公里计数，起步价3公里8元钱，超过3公里一公里1元钱(Taxi vhdl program, with a testbench simulation program, started by the reset button, then the exercise kilometer count signal, starting at 3 km 8 yuan, more than three kilometers one kilometer dollar.)

华为内部资料，包括verilog电路设计，硬件工程师手册，verilog约束，synplify使用指南等。内容较全面。(Huawei internal information, including verilog circuit design, hardware engineers manual, verilog constraints, synplify use guides. Content more comprehensive.)

数字滤波器的C语言实现，，包含高通、低通、带通滤波器 (The C language implementation of the digital filter, including the high-pass, low pass, band-pass filter)

连续相位调制CPM信号的viterbi编解码(MSK viterbi decode)

(A good set of learning information for Verilog timing chapter, with source code and engineering documents, you can follow the tutorial self-study)

2011年全国大学生电子设计竞赛E题“简易数字信号传输性能分析仪”fpga的控制代码，verilog编写；包括了M序列及同步时钟的提取等所有程序。(2011 National Undergraduate Electronic Design Contest E title "Simple digital signal transmission performance analyzer" fpga control code, verilog prepared including the M-sequence and synchronous clock extraction and all other programs.)

说明：  vcs中文使用教程，帮助你快速入门Linux下的VCS操作(VCs Chinese tutorial to help you get started with VCs operation under Linux)