verilog based Real Time clock with manual input implement on fpga

8051的内核(vhdl) This is version 1.1. of the MC8051 IP core. 在FPGA上运行.供有精力的人研究.-8051 kernel (vhdl) This is version 1.1. Of the M C8051 IP core. FPGA operation. have the energy for the study.

应用背景基于VHDL实现四层电梯的运动，实现电梯的正常运转关键技术VHDL，状态机，编译码器，触发器，比较器。

用VHDL实现视频控制程序(实现对图像的采集和压缩)-Using VHDL video control procedures (the achievement of the image acquisition and compression)

read data of type character from flash memory

一个AD9226芯片的驱动，用FPGA写的。虽然简单，但是希望对各位有帮助(An AD9226 chip driver, FPGA written. Though simple, but I hope you will help)

将Verilog代码转换成C++代码的软件，C源代码。-soft for changing Verilog code to c++ code ,c code

FPGA实现增量式光栅尺正交脉冲解码，基于Verilog(FPGA realization of incremental grating ruler orthogonal pulse decoding, based on Verilog)

此代码实现4人表决功能，4人中有三人同意即为通过。(Four voting)

RS232接收程序 无奇偶校验位 并行输出8位数据与data_ready数据准备好信号(RS232 receive procedures without parity 8-bit parallel output data and data ready signal data_ready)

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.)