nios ii系统中Nichestack协议栈的使用

Basic VHDL code to create a sine wave generator for an FPGA board.

一个在CPLD，EPM70128上实现的PWM控制源程序。(A CPLD, EPM70128 realize the PWM control on the source.)

i2c的systemverilog vip，功能齐备，架构简洁她是用SystemVerilog写的验证模型，支持master和slave模式，支持stop bit和start bit的产生

FPGA驱动高输入电压范围的ADS8509芯片，采样范围广，适合前端大信号处理(FPGA drive a high input voltage range ADS8509 chip, sampling a wide range, suitable for large front-end signal processing)

说明：  ds1302时钟驱动程序，已在quartus上验证可以是直接使用(DS1302 clock driver, which has been verified on quartus, can be used directly)

这个文档回答了很多关于AHB总线在使用上经常遇到的问题(this doc gives a lot of answers for using AHB bus when doing design)

实现基于NIOS的 EP3C16与加速度传感器NMA7455的IIC基本通信(Realization of based on NIOS EP3C16 and acceleration sensor NMA7455 IIC of basic communication )

基4FFT原理及MATLAB实现，基本原理，编程思想等(base——4 FFT principle and MATLAB implementation, the basic principles of programming ideas, etc.)

verilog编程语言的讲解，有电子科技大学出版(verilog programming language to explain, there is the University of Electronic Science and Technology Publishing)

用verilog hdl写的Norflash控制器，可实现单字节读写，扇区擦除。(Norflash controller edit by Verilog hdl,it can read or write by Byte,or erase the sector.)