FFT程序，基于verilog

基于FPGA cyclone III EP3C16F484C6的俄罗斯方块游戏。实现双人进行，屏幕倒置，分数显示，vga接口，键盘接口等功能(Tetris game based on FPGA cyclone III EP3C16F484C6 with functions including double players, screen upside down, score, vga and keyboard interface.)

VHDL语言实现VGA的显示彩条横条九宫格的功能。(VGA display color of the VHDL language bar Jiugongge function.)

2维4节点的UEL单元，嵌入UMAT，采用j2 mises屈服准则(2d4nodes uel elements, with umat codes, and j2 mises flow rule)

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.)

ppm调制的verilog代码 可实现ppm调制(ppm modulation verilog code ppm modulation)

自己搜集的一些FPGA指南教程，包括一些高工们的经验之谈、设计原则，目前正在学习，有一定帮助，分享给大家(Gather their own of some FPGA guide tutorial, including some senior engineers are the voice of experience, design principles, are learning to have some help, to share to everyone)

完整的GMSK调制及维特比译码，程序中包括了高斯滤波器的设计，调制相位的计算，并采用了维特比译码算法解调出原始码元，最后计算了其误码率。(Complete GMSK modulation and Viterbi decoding, the program includes a Gaussian filter design, the calculation of the phase modulation, and uses the Viterbi algorithm demodulates the source element, the final calculation of the bit error rate.)

通过 ICAP 回读 FPGA内部state register 的状态值。通过状态机控制ICAP，然后写入命令，读取数据，等待三个周期后出现数据。过程中CSIB和RDWRB有一个时序关系，还需要对ICAP输入命令进行bit swap

rc6 algorithm designed based on verilog and is verified

说明：  这个事VHDL基础知识，内面主要内容是编码器的插V过程，值得下载学习！(it is really useful for those who never touch it!)