the realization of paragraph ep2c5 register verilog language, quartus 2 Simulati...

这是一个fft的IP核，安装要求为quartus6.0以上。解压安装后可在quartus里例化使用，元件主要为cyclone和stratix,最大支持1024点的转换。

vivado lwip 应用文档 基于zynq 7020(vivado lwip example text of zynq)

mooor状态机的VHDL程序，代码，状态机，关键是分析各个状态之间的切换-mooor zhuangtaiji zhuagtaiji guanjianshi gege zhuangtai zhijian de qiehuan

高斯最小频移键控（Gaussian Filtered Minimum Shift Keying），这是GSM系统采用的调制方式。数字调制解调技术是数字蜂窝移动通信系统空中接口的重要组成部分。GMSK调制是在MSK（最小频移键控）调制器之前插入高斯低通预调制滤波器这样一种调制方式。GMSK提高了数字移动通信的频谱利用率和通信质量。(Gauss Filtered Minimum Shift Keying is a modulation method used in GSM system. Digital modem technology is an important part of air interface of digital cellular mobile communication system. GMSK modulation is a method of inserting a Gaussian low-pass pre-modulation filter before the MSK (minimum frequency shift keying) modulator. GMSK improves the spectrum utilization and communication quality of digital mobile communication.)

此练习的目的是要了解如何连接简单的输入和输出到 FPGA 芯片的设备和 实现电路，使用这些设备。我们将作为投入 DE2 系列主板上使用 SW17

这个是用VHDL实现FPGA对FLASH的读写。(This is achieved using VHDL FLASH FPGA to read and write.)

在altera的FPGA平台上实现rs232串口的自收发通信，速率为115200波特率，PC机使用串口调试助手即可观察结果。包含全部代码与工程，本人亲自测试通过。(Realization of self transmitting and receiving communication serial port of RS232 In altera on the FPGA platform, at a rate of 115200 baud rate, PC using serial debugging assistant can be observed. Contains all the code and engineering, I personally tested by. )

在数字通信中，通常直接从接收到的数字信号中提取位同步信号，这种直接法按其提取同步信号的方式，大致可分为滤波法和锁相法。锁相法是指利用锁相环来提取位同步信号的方法，本设计方案就是基于锁相环的位同步提取方法，能够比较快速地提取位同步时钟，并且设计简单，方便修改参数。采用Quartus II设计软件对系统进行了仿真试验，并用Altera的Cyclone II系列FPGA芯片Ep2c5予以实现。(In digital communication, usually from receiving directly in digital signal extracted a synchronized signal, the direct method according to the extraction synchronized signal way, can be roughly divided into filtering method and phase lock method. Phase lock method is using of phase locked loop to extract a synchronized signal method, the design scheme is based on phase locked loop of a synchronous extraction method and can be quickly extract a synchronous clock, and design simple, convenient modification parameter. The Quartus II design software of the system, and the simulation test Altera Cyclone II FPGA chip to achieve Ep2c5 series.)

一个八位的并行输入，串行输出的编码器；带有开头结尾帧。(It is an encode with eight palallel input and a serial output.)

本例程位于 VMD642_CPLD目录中。 使用 CPLD 实现辅助译码、LED 指示灯控制、看门狗等各种逻辑控制电路。源程序使 用 Verilog HDL书写，编译开发系统使用 Cypress公司的 Warp 6.3。(This routine is located VMD642_CPLD directory. Using CPLD implementation auxiliary decoding, LED indicator control, watchdog, and other logic control circuitry. Written using Verilog HDL source code, the compiler development system using Cypress' s Warp 6.3.)