适用于FPGA的SOPC方面的元器件添加，如COMPNENT

说明：  适合入门及进阶的100个VHDL练习题，从易到难(100 VHDL exercises for beginners and advanced students, from easy to difficult)

verilog code for apb to ahb convert

用Verilog编写的以太网控制器，可以使用，里面是全部verilog源码(Ethernet controller based on Verilog, can be used directly, all verilog files)

cordic算法的fpga的实现 采用altera芯片-cordic realization algorithm using fpga chip altera

detailed spec for Xilinx V5 FPGA, reference for programming of FPGA, system designer or ASIC designer.

HDL example source code 2/5 dff_en

是一个用vhdl语言编写的pwm程序，可以方便地用来和nios连接，实现对nios的功能扩展。-is a VHDL language with the PWM procedures can be used to facilitate connections and nios, nios to achieve a functional extension.

基于FPGA的2FSK调制解调，里面有详细的工程说明，对于学习ISE软件和通信原理的知识很有帮助(FPGA based 2FSK modulation and demodulation, which contains detailed engineering instructions, for learning ISE software and communication principles of knowledge is very helpful.)

3-8译码器地简单实现，采用QUARTUSii5.0环境编译-3-8 decoder to realize a simple, using the compiler QUARTUSii5.0 environment

QUARTUS 的配置及调试 flv的 -Quartus flv configuration and commissioning of the