VHDL实现的8位乘法器，所有仿真全部通过

用verilog编写的科斯塔斯环，希望有帮助(Costas loop written in verilog helpful)

关于Digilent Atlys Spartan-6 FPGA development board　audio ac97的讲解及具体应用的源码(Digilent Atlys Spartan-6 FPGA development board audio of ac97' s presentation as well as the specific application' s source code)

Verilog投币式手机充电仪 清华大学数字电子技术基础课程EDA大作业。刚上电数码管全灭，按开始键后，数码管显示全为0。输入一定数额，数码管显示该数额的两倍对应的时间，按确认后开始倒计时。输入数额最多为20。若10秒没有按键，数码管全灭。(Verilog coin operated cell phone charger EDA major homework of digital electronic technology foundation course, Tsinghua University. Just put on the digital tube completely extinguished, press the start button, the digital tube display is 0. Enter a certain amount, the digital tube shows the amount of double the corresponding time, according to the confirmation began countdown. The maximum amount of input is 20. If there is no button in 10 seconds, the digital tube will die out.)

FPGA编写环境，具有仿真容易，软件内存小的特点(FPGA authoring environment, with easy simulation software features small memory)

TFT 液晶屏显示，通过按键，显示不同的曲线(TFT LCD display)

说明：  实现AXI,AXI-Lite乒乓地址的传输，AXI,AXI-Lite已经封装成内核，可直接修改后使用(Realize the transmission of table tennis address of Axi and Axi Lite. Axi and Axi Lite have been encapsulated into a kernel, which can be directly modified and used)

详细的说明了FPGA设计的整个流程 FPGA设计全流程Modelsim>>Synplify.Pro>>ISE-Detailed description of the FPGA design flow of the entire FPGA design flow full Modelsim> > Synplify.Pro> > ISE

出租车计费，器设计一个出租车自动计费器，计费包括起步价、行车里程计费、停止和暂停不计费三部分。现场模拟汽车的启动、停止、暂停和换挡状态。分别用四位数码管显示金额和里程，各有两位小数，行程 3公里内，起步费为6元，超过3公里，以每公里1.3元计费(Car repair billing device)

说明：  在Xilinx环境下编写的vhdl程序，实现推箱子的游戏任务，界面很漂亮。(Xilinx environment in the preparation of the VHDL program, realized the game viewing tasks, the interface is very beautiful.)

here is realized simple FIFO stack in vhdl. very simple example, but very helpful.