计数器 0 到 9999

vhdl编写的4X4键盘扫描程序，可以有效的消除抖动，并且提供蜂鸣器输出。(VHDL prepared 4X4 keyboard scanner, you can effectively eliminate jitter and provide buzzer output.)

学习xilinxVHDL语言的一本好书，为官方资料，可方便读者熟悉xilinx的代码风格(A good VHDL,it s fittable for the reader to be familiar with the style of xilinx)

能够实现16位的SDRAM的读写，没有仿真文件，只有SDRAM读写的源代码，用Verilog编写(can complete read or write sdram， only include Verilog code and no simulation files)

wm8731音频编解码芯片使用介绍,该手册里面对该芯片进行了详细的描述，对各个单元模块也进行了详细的阐述(the handbook of WM8721/WM8731L)

基于FPGA的PAL_VGA转换器的实现.pdf(FPGA-based PAL_VGA converter implementation)

fpga模拟两路视频，简单拼接后，经过GPIF II接口传出给cy2014，测试usb的吞吐量(fpga generate two lane video, and transmit them through GPIF II interface. test cy2014)

很好的NAND Flash 硬件驱动语言，支持VHDL和verilog 语言方便移植，如果有想用FPGA直接驱动NAND flash而又不知如何下手的朋友肯定喜欢。(NAND Flash Controller Reference This reference design is used to interface a NAND Flash device and provides a simple host end interface. The host end interface of this design is user-configurable. It provides buffer select signal, buffer write enable signal, address bus, data bus, error status signal, control and handshake signals for the user......)

将VHDL程序下载到DE2开发板，引脚分配时需要知道的芯片每个引脚功能(VHDL program will be downloaded to the DE2 development board, you need to know when the pin assignments for each pin of the chip functions)

脉冲多普勒雷达回波信号相干积累的VHDL源程序-pulse Doppler radar echo signal coherent accumulation of VHDL source

实现对LCD1602的Verilog HDL编程(the program for LCD1602 based on Verilog HDL)