利用数字电路知识，进行二十四小时计时，并有闹钟与蜂鸣器功能...

一个FPGA的AVR_Core 仅供测试~-AVR_Core an FPGA-only test ~

说明：  利用FPGA实现对外设按键的控制，例如用户库用按键控制跑马灯的效果(FPGA is used to realize the control of external keys, such as the effect of user database using keys to control the running horse lamp)

说明：  FPGA接收串口UART发来的指令设定温度报警值，实时采集DS18B20温度传感器并显示，带报警功能(FPGA receives the instruction from UART, sets the temperature alarm value, collects and displays DS18B20 temperature sensor in real time, with alarm function)

VHDL 编写的RAM例子-RAM prepared VHDL example

基于FPGA用verilog语言实现16点FFT(16-point FFT FPGA-based verilog language)

一个游戏程序vhdl源码，供大家参考，希望有兴趣的人下载-VHDL source code of a game program for your information, I hope those who are interested in downloading

针对QUARTUS的DMA的VHDL代码实现(DMA Controller Code in VHDL)

在Qaurtus环境下用Verilog输入实现64QAM信号的发生，用MATLAB协助验证，观察了PN序列对应的星座图。(Simulating generation of 64QAM RF Signal in Quartus II IDE,identified with MATLAB,constellation gram displayed.)

VHDL上机手册（基于Xilinx ISE） ___________________________________________________ 1 ISE 软件的运行 2 创建一个新工程 3 创建一个VHDL源文件框架 4 输入VHDL程序 *5 仿真 6 创建Testbench波形源文件 7 设置输入仿真波形 -eda

说明：  4位数码扫描显示电路,我们控制一个七段LED需要8个输出端口；如果要输出四位十进制数，就需要32的输出端口，这将占用大量的端口资源。采用串行扫描显示，我们只需要8+4共12个端口即可。其原理是：用一个四位的输出端控制，某一时刻只选中其中的一个LED（输出为‘1’表示选中），八位的输出端将该LED所需要显示的值输出；然后四位的输出端值改变，选中下一个LED。这样依次类推。如果选择的频率很快，达到50Hz以上，由于人眼的视觉暂留效应，看起来就像4个LED同时显示。 设计一个程序，输入四个一位十进制数，用4个LED显示出来。CLK采用频率可调信号发生器，逐渐改变频率，观察扫描频率的改变对输出效果的影响。 输入：连续脉冲，逻辑开关；输出：七段LED。 (4 digital scanning display circuit, we need to control a seven-segment LED output port 8 If you want to output four decimal numbers, you need the output port 32, which will take up a lot of ports. Serial scans showed, we need only 8 of 12 ports can be+4. The principle is: the output of four with a control, a time to select only one LED (output 1 is selected), 8 output of the LED by the need to show the value of the output then The output value of the four changes, select the next LED. This and so on. If you select the frequency rapidly, reaching more than 50Hz, as the human eye s persistence of vision effect, looks like a 4 LED display simultaneously. Design a program, enter a decimal number four, with four LED display. CLK signal generator with adjustable frequency, gradually changing the frequency of observed changes in scan frequency effect on the output. Input: Continuous pulse, logic switches output: seven-segment LED.)