基于FPGA的hdb3编码实现

运用VHDL语言编写的检测1111的序列检测代码和加法器，运用verlog语言的交通灯，流水灯，出租车自动计费器等                                                                            

数字载波发生器，产生一个正弦波，工程中的所有模块都经过测试并运行没有任何问题，而且利用逻辑分析仪对每个模块的输出都进行了逻辑测试。并经过D/A转换得到了正弦波波形，但唯一的缺点是没有滤波器，如果有人想看标准正弦波，可以自制一个简易低通滤波器进行观看，如有不清楚的地方可以把问题发到我的邮箱jiangguoqian@126.com一起探讨研究。(sinewave)

使用VERILOG开发时钟同步算法，能够从数据信号中提取时钟信息，(Clock synchronization algorithm using VERILOG developed to extract the clock from the data signal information,)

d flip flop t flip flop counter mux using active hdl can be run using 3.2 version and creating new design

说明：  用verilog语言实现计算反正切函数，在软件无线电中解调PM/FM中使用的尤为频繁。上传的压缩包是modelsim工程，基于6.5c,里边包含一个完整的PM波产生以及解调过程的matlab文件仿真，并取其中间的I和Q支路做为verilog文件的输入，并将其借条输出与MATLAB实际解调输出作比较。 鉴相器的设计基于CORDIC算法，其精度取决于迭代的深度。由于工程实际运用只需要解调出atan值，并不需要绝对的值，所以并没有给予加权，需要的同学可以自己加上。(Calculated using verilog language arc tangent function, the software radio demodulation PM/FM is particularly used frequently. From the archive is modelsim project, based on 6.5c, inside the PM contains a complete demodulation process of wave generation and simulation matlab file, and whichever is the middle of the I and Q branch verilog file as input, and its IOU demodulated output and actual output of MATLAB for comparison. Phase detector design is based on CORDIC algorithm, its accuracy depends on the iteration depth. As the practical application of engineering demodulated atan value only and does not need absolute value, and there is no weight given to the need of the students can add their own.)

提供了利用 GPIF 对 FX2LP 与同步 FIFO CY7C4625-15AC 之间的接口进行设计的源代码(Provides for the use of GPIF FX2LP and synchronization FIFO CY7C4625-15AC to design the interface between the source code)

基于fpga的电子血压计。pdf文档，好用，内容清楚简单，转载而来(Electronic sphygmomanometer based on fpga)

基于FPGA的图像压缩算法程序，自己写的，可以参考一下(FPGA-based image compression algorithm, write your own, you can refer to)

OPSK调制解调。代码思路很清晰，也很干净(Modulation demodulation OPSK. The code ideas very clear, and very clean)

基于FPGA的UDP网络图像传输实验，FPGA完成了MT9V034的RAW图像采集缓存，NIOS完成了图像的UDP封包，DM9000芯片完成了MAC和PHY的功能。(Based on the UDP FPGA network image transmission experiment, FPGA completed the RAW MT9V034 image acquisition cache, NIOS completed the image of the UDP packets, DM9000 chip MAC and PHY completed the function.)