位同步例程源代码,FPGA应用领域，Verilog

EDA用maxplus2开发设计的简易数字钟，适合初学者，vhdL语言(EDA maxplus2 in development and design of simple digital clock, is suitable for beginners, vhdL language )

AUDIO音频模块AN831的录音及播放FPGA代码，测试通过(AUDIO audio module AN831 recording and playback of FPGA code, the test passed)

vhdl very good debug release vhdl very good debug release

Take its complement by applying DeMorgan’s theorem to obtain F in the form of product of complemented products.

CPLD imlementation of I2C BUS Controller. The description has been made by VHDL

all funtions for a scale meter for maps in a 8051 microcontroler with an alphanumeric lcd display

《数字信号处理的FPGA实现（第三版）》作者：U.Meyer-Baese 的配套源码，基于quartus9.0编写，使用的cyclone ii。其中包含FIR IIR FFT等算法的实现，对学习图像处理很有帮助。( FPGA digital signal processing (third edition) Author: U.Meyer-Baese The matching source, based on quartus9.0 preparation, the use of cyclone ii. Which includes FIR IIR FFT algorithm such as the realization of learning to image processing helpful.)

哈希算法FPGA实现代码，采用MD5算法，并给出了仿真波形。(MD5 hashing algorithm for FPGA implementation code)

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.)

sigmoid函数硬件实现，verilog代码及其测试用例(Sigmoid function hardware implementation, verilog code and test cases)