for Dictyophora board, in the way of achieving LCD clock function.

EDA技术以EDA软件工具为开发环境，以可编程逻辑器件为实验载体，实现源代码编程和仿真功能。VHDL作为一种标准化的硬件描述语言用于描述数字系统的结构、行为、功能和接口。本设计提出了一种基于VHDL语言的编码器和译码器的实现方法。编码器与译码器是计算机电路中基本的器件，本课程设计采用EDA技术设计编码和译码器。编码器由8线-3线优先编码器作为实例代表，译码器则包含3线-8线译码器和2线-4线译码器两个实例模块组成。课程设计采用硬件描述语言VHDL把电路按模块化方式进行设计，然后进行编程、时序仿真和分析等。课程设计结构简单，使用方便，具有一定的应用价值。 (EDA technology take the EDA software as tools for the development of the environment,programmable logic devices in experimental carrier,the realiztion of the source code programming and simulation. The VHDL as a standardized hardware description language used to describe the struction of digital systems,behavior,function and interface. The paper proposes a method for encoder and decoder based on the VHDL language.Encoder and decoder is a basic computer circuit devices.This Curriculum design by EDA design encoder and decoder.Encoders from 8- 3 priority encoder for example,and decoder includes 3- 8 decoder and the 2- 4 examples of the two decoder modules.And then to program, the timing simulation and analysis.Curriculum design, simple structure, easy to use and has a value.)

基于VHDL语言描述的一个分频器，根据端口值，可作为四分频，八分频等分频器使用。-based on VHDL description of a divider, according to port value, as a quarter of frequency, Frequency Divider interval such use.

FFT with fix point 2*N

采用VHDL编写的七段数码管显示程序-prepared using VHDL paragraph 107 of the procedures Digital Display

关于FPGA针对LCD资源配置，及相关电路层次关系(LCD FPGA)

huffman transform in vhdl language

crc5 bolck in usb contreoller

基于nios的vga显示实验，自制的ip核。可以按照自己的需求改写ip(Nios to vga display ip nuclear experiments, homemade. Can be rewritten in accordance with their own needs ip)

32位扰码器的verilog代码，编译通过(The Verilog code of 32_bit scrambler)

8051内核的hdl代码，实际上是verilog格式不过上载页面只有一个vhdl选择，值得一读， 里面对仿真和验证的说明很有含金量-the hdl code of 8051 core