四位除法器的VHDL源程序

频率计VHDL编程。设计一个4位数字显示的十进制频率计，其测量范围为1MHz，测量值通过4个数码管显示以8421BCD码形式输出，可通过开关实现量程控制，量程分10kHz、100kHz、1MHz三档(最大读数分别为9.999kHz、99.99kHz、999.9kHz)； 当输入信号的频率大于相应量程时，有溢出显示。 -Cymometer VHDL programming. Design of a 4-digit decimal display frequency, the measurement range of 1MHz, the measured value through the four LED 8421BCD code shows the form of output can be controlled through the switch range, range at 10kHz, 100kHz, 1MHz Three (maximum reading were 9.999kHz, 99.99kHz, 999.9kHz) when the input signal is greater than the corresponding frequency range, it shows overflow.

verilog实现的FPGA三态以太网链路层通信代码，里面有状态机，并按各个模块的功能分了文件夹，还有说明文档，自定义帧的产生和接收，开发环境为Xilinx ISE，测试无误。(verilog realization FPGA Tri-Mode Ethernet link layer communication code, which the state machine, according to the function of each module sub folder, as well as documentation, self-defined frame generation and reception, the development environment for the Xilinx ISEtest and correct.)

图像处理的中值滤波器，使用verilog开发环境编程实现。(Verilog development environment programming median filter)

本练习的目的是构建和使用计数器。所设计的电路将在计算机上实现

LDPC码不同码率对比，1/2与1/3码率对比。码长512.迭代次数50次。(Comparison of different rate of the LDPC code, 1/2 compared with the 1/3 code rate. 512 yards long. 50 times the number of iterations.)

FPGA上的一个半加器实例程序，通过测试，可以直接运行在fpga开发板上。(One and a half adder example on FPGA program, through the test, can be run directly on the FPGA development board)

Oregano Systems 8051 ip核-Oregano Systems 8051 ip core

FPGA UART transmit and so on

this describes building spi block on verilog hdl and programming them on an fpga device

wm8731音频编解码芯片使用介绍,该手册里面对该芯片进行了详细的描述，对各个单元模块也进行了详细的阐述(the handbook of WM8721/WM8731L)