VLSI DSP 练习

verilog编写的并行256点fft代码(Verilog prepared parallel 256 points fft code)

verilog 简易频率计的设置，包括整个工程(verilog simple frequency meter settings, including the entire project)

一个简单的用verilog实现的售货机状态机设计，内有word介绍设计的原理(A simple realization of a vending machine with verilog state machine design, there are design principles introduced word)

it has 6 packages of 8051 sources,including source code(VHDL and Verilog),dc scripts, pdfs, netlists etc. and a MIPS IP package

基于DDS的信号源设计（包括三角波、正弦波、方波）(Design of signal source based on DDS)

新版 小米抢购器 -源码 已经测试，代码很有用，已经抢了好几个小米3了，希望对大家有用(The new millet to snap up- source Have test, the code is useful, has robbed several millet 3, hope useful for everyone)

说明：  用三个按键控制pwm输出 key0控制是选着显示/改变频率或占空比 key1控制增加 key2控制减少 数码管显示频率或占空比 频率单位默认Hz（500-20KHz） 占空比范围（0.1-0.9）(Control PWM output with three keys Key0 controls display/change frequency or duty cycle optionally Key1 controls the increase Key2 controls are reduced Digital tube display frequency or duty ratio Frequency unit default Hz (500-20khz) Duty cycle range (0.1-0.9))

设计制作一个检测4*4矩阵键盘的按键编码的实验，把实际按键的键值的八位编码先转换成从0000—1111的编码，再译成数码管能识别的八位编码，在数码管动态显示时，4*4矩阵键盘的第一行对应00—03，第二行对应04—07，第三行08—11，第四行对应12—15。(Design a 4* 4 matrix keyboard key coding experiments to detect the key the actual key octet coded first convert from 0000-1111 encoding, and then translated into digital tube to identify the eight coding, digital tube dynamic display, the first line of the 4* 4 matrix keyboard corresponding to 00-03, the second line corresponds to 04-07, the third line of 08-11, the fourth line corresponds to 12-15.)

说明：  VHDL语言写的SRAM控制程序，在开发板上验证过。(Written in VHDL SRAM control procedures, the development board verified.)

本实验是利用Verilog来驱动PS2，读取键盘的字母，并在lCD上显示。 本代码中只设置对键盘的字母进行检测，而对其他的没有检测。