这是我自己编写的三分频，也就是奇数分频，占空比为1：1，当然如果需要其它奇数分频，只要将程序里面的N和counter修改即可...

Aurora 8B/10B协议是Xilinx公司针对高速传输开发的一种可裁剪的轻量级链路层协议，通过一条或多条串行链路实现两设备间的数据传输。协议Aurora协议可以支持流和帧两种数据传输模式，以及全双工、单工等数据通信方式。(The Aurora 8B / 10B protocol is a tailor-made lightweight link layer protocol developed by Xilinx for high-speed transmission that enables data transfer between two devices over one or more serial links. Protocol Aurora protocol can support two data transfer modes, stream and frame, as well as full-duplex, simplex and other data communications.)

FSM_test for textbanch in vhdl-FSM_test

fpga key test 入门 xilinx 黑金的板子(fpga key test xilinx)

这是一个简单的定时器模块使用计数器

DRD3在Xlinix平台上的设计教程以及仿真(DRD3 design tutorial and Simulation on Xlinix platform)

增强型8051的VHDL源代码，两个周期执行一条指令，仿真工具为Modelsim，开发板为Altera的EP1C20开发板-enhanced 8051 VHDL source code, the implementation of a two-cycle instruction, simulation tools for Modelsim, development board for the Altera EP1C20 development board

直接数字式频率合成器DDS设计、Verilog。 产生的信号可以是正弦波或方波、三角波、锯齿波等，自选。 采用DDS技术，将所需生成的波形写入ROM中，按照相位累加原理合成任意波形。 此方案得到的波形稳定，精度高，产生波形频率范围大，容易产生高频。 本实验在设计的模块中，包含以下功能： （1）通过 freq 信号输入需要的频率的值； （2）通过 wave_sel 信号选择所需的波形； （3）通过 amp_adj 信号选择波形放大的倍数。(DDS design of direct digital frequency synthesizer, Verilog. The generated signal can be sinusoidal or square wave, triangular wave, sawtooth wave and so on, optional. By using DDS technology, the required waveforms are written into ROM, and arbitrary waveforms are synthesized according to the principle of phase accumulation. The waveform obtained by this scheme is stable, accurate and easy to generate high frequency waveform. This experiment includes the following functions in the designed module: (1) Input the required frequency value through freq signal; (2) Choosing the required waveform by wave_sel signal; (3) Select the multiplier of waveform amplification by amp_adj signal.)

fft变换三个中的一个（站长：三个代码算一个）-fft transformation of a three (head : It is a code 3)

PS2键盘控制器的VHDL源码，用FPGA直接读取键盘的输入并显示。(PS2 keyboard controller VHDL source code, with a direct FPGA to read keyboard input and displayed.)

此为多功能数字电子钟的vhdl代码，有闹钟、时间可调、计时等功能-This is a multi-function digital electronic clock VHDL code, has an alarm clock, time adjustable, timing and other functions