带控制器的数据通路实现链表读和累加

SDIO 接口，实现SD卡的控制器功能，带有详细的注释(SDIO Interface,to realize the controller of SD Card,and have detail description.)

说明：  viterbi decode by verilog

光纤发送接收模块，verilog编写，主要用于光纤的发送和接收，波长1310nm(Fiber optic transmitter receiver module, verilog written primarily for transmitting and receiving the optical fiber, wavelength 1310nm)

基于Montgoery 算法的RSA,FPGA verilog 实现，有测试文件(Based on Montgoery algorithm for RSA,FPGA verilog implementation，bench file)

说明：  用matlab将图片转成灰度图TXT，再通过verilog将数据导入FPGA中，采用高斯滤波算法来处理，再将处理后的图片数据导出到TXT中。(The image is transformed into gray-scale image TXT by MATLAB, and then the data is imported into FPGA by Verilog, processed by Gauss filter algorithm, and then the processed image data is exported to TXT.)

资源描述一个基于verilog的VGA显示小球游戏，可在FPGA板上运行

EDA 正弦信号发生器：正弦信号发生器的结构有四部分组成，如图1所示。20MHZ经锁相环PLL20输出一路倍频的32MHZ片内时钟,16位计数器或分频器CNT6，6位计数器或地址发生器CN6，正弦波数据存储器data_rom。另外还需D/A0832（图中未画出）将数字信号转化为模拟信号。此设计中利用锁相环PLL20输入频率为20MHZ的时钟，输出一路分频的频率为32MHZ的片内时钟，与直接来自外部的时钟相比，这种片内时钟可以减少时钟延时和时钟变形，以减少片外干扰 还可以改善时钟的建立时间和保持时间，是系统稳定工作的保证。CNT6用来将32MHZ进行8分频得到4096HZ的频率提供给CN6与data_rom时钟信号。由CLK端输入20MHZ的时钟信号，在DOUT端就可输出稳定的正弦信号。(Sine signal generator has the structure of four parts, as shown in figure 1 below. The 20 MHZ phase lock loop PLL20 output all the way of frequency doubled within 32 MHZ slice clock, 16 counter or prescaler CNT6, six counter or address generator CN6, sine data storage data_rom. In addition to D/A0832 (shown in not draw) will digital signal into analog signals. This design using the phase lock loop PLL20 input frequency for 20 MHZ clock, the output of the frequency of all points frequency of 32 pieces (MHZ clock, and comes directly from the external clock, compared to this piece of clock can reduce the clock in delay and clock deformation, to reduce the interference of Can also improve the establishment of the clock time and keep time, is the system stability of assurance. CNT6 used to will and to 8 MHZ get 4096 HZ dividing the frequency to provide CN6 and data_rom clock signal. The input by CLK 20 MHZ clock signal, in DOUT end can output stable sine signals. )

用vhdl实现脉冲宽度可控的一简单程序 仿真环境MAXPLUS-(use VHDL to achieve controllable pulse width of a simple process simulation environment Segments-)

I2C的实现，可以扩展进而控制有关I2C的器件达到操作员的控制目的。(I2C implementations, can be extended further having control of the I2C device operator control purposes.)

说明：  FPGA与PC端实现串口数据的收发，先从PC端接收数据，然后发回给电脑，可通过串口助手验证。(The serial port data is sent and received between the FPGA and the PC. First, the data is received from the PC, and then sent back to the computer. It can be verified by the serial port assistant.)