FPGA密码锁状态机的设计

低通滤波器用于的加强频率选择方案中的任何信号，所以这段代码将帮助他们选择他们各自设计的频率到一个特殊频率为界

用verilog实现endat2_1驱动,并用signalTap捕捉信号。(Using verilog achieve endat2_1 drive and use signalTap capture signal.)

说明：  设计一个8位的简易频率计，测出信号的频率，即1s内变化的次数。(An 8-bit simple frequency meter is designed to measure the frequency of the signal, i.e. the number of changes in one second.)

RS232协议的Verilog简单实现，包含发送和接收模块。

例程是基于quartus的，FPGA通过EMIF给DSP发送数据，里面包含了一个简单的状态机和一个基于IP核的fifo，适合初学者(Routine is the FPGA to send data to the DSP via EMIF, which contains a simple state machine and an IP-based core fifo, suitable for beginners)

ov5640的驱动代码，包括寄存器初始化，cmos图像的捕获，ddr内存的驱动，LCD驱动等。

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.)

计算机组成与设计课程设计 用verilog与FPGA设计多周期CPU 通过modelsim仿真与ISE综合

vhdl code for carry lookahead addder

说明：  基于数据通路和控制器的高校简单PPM设计(PPM design based on datapath and controller)