参数化FFT源代码，点数和位宽可变，内附testbench和说明文档

用FPGA实现DDS的原理图，结构清晰，采用总线方式与外部单片机通信-FPGA realization of DDS with the schematic diagram, structural clarity, the use of bus-way communication with the outside Singlechip

基于FPGA的直接序列扩频发射机的设计与仿真。实验中以QuartusII 7.2 为设计和仿真工具， 各模块采用Verilog HDL设计并封装，顶层使用图形设计方式,最后得到的仿真结果使用Matlab描点来绘制出波形。 (FPGA-based direct sequence spread spectrum transmitter of the design and simulation. Experiment to QuartusII 7.2 for the design and simulation tools, the module using Verilog HDL to design and package, the top-level use of graphic design, and finally the simulation results obtained using the Matlab description points to draw waveforms.)

曼彻斯特编解码 Xilinx提供的VHDL的源代码-Manchester codec Xilinx provide VHDL source code

用VHDL语言实现QPSK调制功能和解调功能,(Using VHDL language features QPSK modulation and demodulation functions,)

一路24位计数器,cpu可直接读写计数器的计数值.-All the way 24-bit counters, cpu can be directly read and write the total value counters.

说明：  verilog开发的经典教材，详细介绍了语法，常见历程，以及通用的程序段(verilog development of the classic materials, detailed information on syntax, common history, as well as the common program segment)

Xilinx,Altera,ARM,AVR,S52,Lattice等系列FPGA的下载线电路图和PCB-Xilinx, Altera, ARM, AVR, S52, Lattice series FPGA download cable circuit diagram and PCB

说明：  ertyguhijop[lkjhvbn hiouopi][[poiuy

FPGA设计的四种常用思想与技巧，包括乒乓操作、串并转换、流水线操作、数据接口同步化(FPGA design of the four common ideas and techniques, including the operation of ping-pong, SERDES, pipelining, synchronization of data interface)

基于TCAM的高速路由查找，逻辑实现深度为32的内容查找，得到索引和命中指示(TCAM lookup based on a high-speed routing logic to realize the depth of content to find 32, get indexed and hit instructions)