1G以太网UDP

是一个LED点阵显示屏的原理图，非常详细，适合开发者学习(LED dot matrix display is a schematic diagram is very detailed, for developers to learn)

本文首先回顾了LDPC码的发展历程和现状，介绍了LDPC码检验矩阵的构造、编 译码原理。在对编译码作了深入探讨和分析后，接着进行了RU算法编码和长码编码 的FPGA实现;根据二叉树的性质，提出了一种长码编码的ASIC优化设计的方法，节省 了大量硬件资源;论文详细阐述了CORDIC算法原理以及LDPC码译码中所采用的指 数函数和反双曲正切函数的FPGA实现:CORDIC内核及前后处理单元设计、仿真、综 合及数据分析，这对LDPC码的译码具有很重要的意义，为用数字VLSI来实现LDPC的 译码奠定了基础。同时在基于校验矩阵的环路检测定理基础上，将校验矩阵转化为转 移概率矩阵，详细分析并提出了一种基于转移概率矩阵的围长检测方法，并对其进行 了理论证明，具有很好的围长检测效果，以及状态分类判别。(Research and implementation of LDPC coding and decoding technology)

FPGA Verilog HDL 读写SRAM(SRAM FPGA Verilog HDL to read and write)

基于BCD码的十进制ALU设计，可实现加减乘除的功能(BCD to decimal ALU based design can achieve the arithmetic function)

说明：  示波器设计，首先，AD模块对模拟信号进行采样，触发电路根据采样信号判断触发条件。满足触发条件后，连续采样一定数量的点（本系统中为640个点），存储到RAM中。峰峰值、频率计算模块对RAM中储存的波形数据进行计算，得到波形的频率以及峰峰值；VGA模块将波形显示出来，并显示计算得到的峰峰值和频率数值。(Firstly, the ad module samples the analog signal, and the trigger circuit judges the trigger condition according to the sampling signal. After meeting the trigger conditions, a certain number of points (640 points in this system) are sampled continuously and stored in RAM. The peak to peak and frequency calculation module calculates the waveform data stored in RAM to obtain the frequency and peak to peak of the waveform; the VGA module displays the waveform and displays the calculated peak to peak and frequency values.)

基于FPGA，利用vhdl语言结合matlab工具实现dds,已经仿真(Based on FPGA, VHDL language with matlab tools to achieve DDS, has simulation)

用verilog HDL语言编写的fifo存储器源文件 (Using Verilog language HDL FIFO memory source file)

Ripple counter using t _filp flop

xilinx zc706开发板Verilog流水灯源代码，适合刚开始接触FPGA的程序员，新接触xilinx ZYNQ-7000 zc706套件开发板的菜鸟，资源包含设计程序，仿真程序、综合程序，很简单的代码，适合初学者

说明：  简单的单周期CPU设计，实现的指令有：算术运算指令、逻辑运算指令、移位指令、比较指令、存储器读/写指令、分支指令、跳转指令、停机指令。(Simple single-cycle CPU design,The instructions implemented are as follows:Arithmetic operation instruction, logical operation instruction, shift instruction, comparison instruction, memory read/write instruction, branch instruction, jump instruction, stop instruction.)