Altera公司的NIOSⅡ处理器，VHDL语言编译，然后在C语言下的nios……

LDPC QC-LDPC 基于FPGA的QC-LDPC实现 论文(LDPC QC-LDPC FPGA-based QC-LDPC detailed implementation steps Thesis)

说明：  1、能正确显示输入信号频率； 2、测量频率范围为1Hz ~ 999999Hz； 3、测量结果以十进制数字显示； 4、能测量幅值较小的信号频率； 5、有自动刷新输出数据的功能（如5s刷新一次）； 6、有自检模块（如产生100Hz的校准方波）；(1. It can correctly display the input signal frequency; 2. The frequency range of measurement is 1Hz ~ 99999hz; 3. The measurement results are displayed in decimal; 4. It can measure signal frequency with small amplitude; 5. It has the function of automatically refreshing the output data (e.g. once in 5S); 6. Self checking module (such as generating 100Hz calibration square wave);)

说明：  Verilog简易教程，或者说是讲义，清晰易懂，适合初学者入门使用(Layman' s Guide to Verilog, or a lecture, legible entry to use for beginners)

ALTERA NIOS处理器，VHDL语言在QUARTUS编译通过，然后有C语言在NIOS SHELL下驱动，实验音频解码-Altera NIOS processor, the QUARTUS VHDL compiler, then the C language under NIOS SHELL-driven, experimental audio decoder

全部通过，是我的精心设计，完全满足初学者的要求。-all passed, I was carefully designed, fully meet the requirements of beginners.

描述Bayer图像无损压缩的一种先进算法及其如何在FPGA上实现(Description Bayer Image is an advanced lossless compression algorithms in the FPGA to achieve and how)

Quartus中实现的DDS 使用的是altera提供的IP core-DDS achieved Quartus using IP core provided by altera

说明：  内部含3个模块，使用DDS产生200k与500k的正弦波，两者相加后过数字低通滤波（通带0-200k，阻带400k以上），并将波形输出，实测FFT分析中看不到500k分量。其中数字滤波器采用MATLAB设计（FIR+等波纹，阻带衰减-80dB）(There are three modules in the system. DDS is used to generate 200K and 500K sine waves. After adding the two modules, the digital low-pass filter (passband 0-200k, stopband above 400k) is used, and the waveform is output. 500K component can not be seen in the actual FFT analysis. The digital filter is designed by MATLAB (FIR + equal ripple, stopband attenuation - 80dB))

hilbert 变换的vhdl源代码，来源于网上，本人也做过简单的8抽头的，但这个的算法还没搞懂，希望懂行的下载了研究一下，给个中文的简单的说明！(hilbert transform VHDL source code from the Internet, I have been a simple 8-tap, but even before they get to know this algorithm, I hope knowledgeable downloaded to look for a simple description of the Chinese!)

这是一个vhdl代码的进位选择加法器及其工作100%。