交通灯电路，南北方向和东西方向分别按绿灯、黄灯、左拐灯、黄灯、红灯的顺序两灭，数码管显示相应的灯亮的时间的倒计时。已通过编译和仿真。...

acousting fingerprint enhancement

用VHDL硬件语言实现的iic顶层控制程序-Using VHDL hardware language to achieve the top level of the IIC control procedures

xilinx应用指南xapp260的中文翻译版本。利用 Xilinx FPGA 和存储器接口生成器简化存储器接口。本白皮书讨论各种存储器接口控制器设计所面临的挑战和 Xilinx 的解决方案，同时也说明如何使用 Xilinx软件工具和经过硬件验证的参考设计来为您自己的应用（从低成本的 DDR SDRAM 应用到像 667 Mb/sDDR2 SDRAM 这样的更高性能接口）设计完整的存储器接口解决方案。(The use of Xilinx FPGA and Memory Interface Generator to simplify memory interface. This white paper discusses the various memory interface controller design challenges facing Warfare and Xilinx solutions, but also explains how to use Xilinx Software tools and hardware-proven reference designs to be for your own With (from low-cost DDR SDRAM applications to such as 667 Mb/s This higher performance DDR2 SDRAM interface) design a complete deposit Storage device interface solution.)

FPGA AD数据采集模块，实现模拟信号到数字信号转换。(FPGA AD data acquisition module, the analog signal to digital signal conversion.)

mooor状态机的VHDL程序，代码，状态机，关键是分析各个状态之间的切换-mooor zhuangtaiji zhuagtaiji guanjianshi gege zhuangtai zhijian de qiehuan

说明：  credit base network on chip(network on chip (noc))

控制步进电机转动，正反转，旋转角度完美掌握。很好用，亲测(Control stepping motor rotation, positive and negative rotation, perfect control of rotation angle. Very easy to use, personal test)

四间隔频率变化，并循环输出50~51ms之间的频率。(Four-interval frequency changes and the cycle between 50 ~ 51ms output frequency.)

主要是通过Altera公司的Cuclone系列的FPGA-EP1C3T144C8产生余弦波的源代码 基于LPM-ROM余弦波一周期含有256个10位数据；-Mainly through Altera s Cuclone series of FPGA-EP1C3T144C8 cosine wave generated source code based on the LPM-ROM cosine wave of one cycle containing 256 10-bit data

fft快速傅立叶变换源码-the source of fast fft transform