PCI的VHDL源码希望对大家有用！

基于QUATEUS2的设计一个8位频率计verilog语言编程(The design is based QUATEUS2 an 8-bit frequency counter verilog programming language)

DDs直接数字频率合成器的源代码，其中包括采用IP核和普通两种方式-DDS Direct Digital Synthesizer source code, including the use of IP core and the general two ways

使用FPGA做的数码相册实验，用NIOS做了FAT32文件系统和JPEG图像解码,FPGA和SDRAM做了显示的缓存(Using FPGA to do the digital album experiment, using NIOS to do the FAT32 file system and JPEG image decoding, FPGA and SDRAM to do the display cache)

this files describes how to build i2c block modules in verilog hdl and programming them on an fpga device

Quartus ii 入门基础 仅针对初学者 望各位童鞋们指导 呵呵 (Quartus ii entry basis only for beginners looking to guide their children' s shoes Oh you)

低频数字式相位测量仪 使用的VHDL语言，在MUXPLUS2环境下使用！ (digit hpase detecter use for low-frequence)

1）选择一个语音信号作为分析对象，或录制一段语音信号； 2）对语音信号进行采样，画出采样前后语音信号的时域波形和频谱图； 3）利用MATLAB中的随机函数产生噪声加入到语音信号中，使语音信号被污染，然后进行频谱分析； 4）设计用于处理该语音信号的数字滤波器，给出滤波器的性能指标，画出滤波器的频率响应； 5）对被噪声污染的语音信号进行滤波，画出滤波前后信号的时域波形和频谱，并对滤波前后的信号进行比较和分析； 6）回放各步骤的语音信号，给出相应处理程序及运行结果分析。(1) Select a voice signal as an analysis object, or record a voice signal 2) sampling the voice signal, draw the waveform and frequency spectrum of the time domain before and after sampling the speech signal 3) using the random function in MATLAB generated noise was added to the speech signal, the speech signal to be contaminated, and then spectrum analysis 4) for processing the speech signal, the digital filter design, given the performance of the filter to draw the filter' s frequency response 5) on the noise pollution of the speech signal is filtered, time-domain waveform and spectrum draw before and after filtering the signal before and after filtering, and the signal for comparison and analysis 6) playback of the speech signal for each step, given the results of the corresponding processing procedures and run analysis.)

实现串口通讯以及SLIP协议传输数据，增加了特殊字符的转义(Realization of Serial Communication and SLIP Protocol)

对pci9054芯片的配置进行了设置，并对PCI9054的各状态机进行了设置，程序经过了测试(Pci9054 chip on the configuration of the set, and each state machine PCI9054 been set, the program have been tested)

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-