Detailed description of the FPGA design flow of the entire FPGA design flow full...

vhdl语言实现的频率发生器，可以产生不同的频率-A frequency generator wirriten by VHDL, which can generate different frequecies.

本代码仿真了WCDMA小区搜索。cell_search_cpich scramble wcdmasource(This code emulation WCDMA cell search. cell_search_cpich scramble wcdmasource)

六十进制计数器用于计数等操作，代码的实现方式很简单(Six decimal counter for counting operation, the code is very simple implementations)

verilog 键盘输入程序，用于led灯的显示-Verilog keyboard input program for led lights display

用verilog HDL编写的SPI控制器，从国外网站上找到的。-SPI (Serial Peripheral Interface) is serial, synchronous, full duplex communication protocol. It is widely used as a board-level interface between different devices such as microcontrollers, DACs, ADCs and others.

在nios系统开发中的驱动i2c音频电路的代码,包括verilog代码,与相应的驱动代码(In the nios system development in the driver i2c code for the audio circuitry, including the verilog code, and the corresponding driver code)

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.)

51单片机测试程序，ＩＣ:UC1676,4线串口(51 MCU test program, IC:UC1676 4-LINE, SPI INTERFACE)

this program get 20 point from user and draw functions.

FPGA设计攻略及流程，包含时序收敛和引脚约束(FPGA design strategy and process, including time series convergence and pin constraints)