ac97 codec fpga vertix5

基于PCI总线和LPC接口的POST主板诊断卡代码，已经通过fpga测试可以使用，性能非常稳定。(Based on the PCI bus and LPC POST motherboard diagnostic card code to interface fpga has passed the test can be used, the performance is very stable.)

DDR SDRAM控制器的VHDL代码已经测试-DDR SDRAM controller VHDL code

应用背景Booth乘法器实现快速乘法algorithm.mainly用于通信和DSP组成的3块摊位重新编码，华勒斯树和超前进位addder关键技术超大规模集成电路设计，通信和DSP的应用，芯片设计，VHDL，Verilog程序，加法器和乘法器

synopse sv培训lab，是学习systemverilog非常好的资料，放心下载。(synopsis sv training lab)

This rar files contains the presentation about FPGA and CPLD .

VDHL的简单DEMO演示，有利于初学者学习使用(VDHL simple demo DEMO will help beginners learn to use)

数字脉冲宽度调制，将输入的数字信号转换为对应占空比的模拟波形(Digital pulse width modulation, the digital signal is converted to the corresponding input of the duty cycle of the analog waveform)

该程序实现的是10进制的计数器，具有置位复位的功能。-the program is the band of 10 counters, with the home-reset function.

vhdl语言试验箱GW48的各种模式引脚图。。(vhdl language the various modes of chamber GW48 pin map. .)

基于数码管独立显示和三色灯的交通指示系统设计(Design of Traffic Indicator System Based on Digital Tube Independent Display and Tri-color Lamp)