usb 硬件实现 请大家多多指教

这是基数 4 修改 Booth 型乘法器为 8 位。它可以用于任何大小的操作数的乘法......

采用vhdl代码描述自适应滤波器，具有很好的可参考性，和实用性(Vhdl code to describe the use of adaptive filter, can be found with a good nature and usefulness of)

包括VHDL、verilog在内的各种设计实例，是学习硬件描述语言的帮手。共有82个实验例子，涉及各种语法规则。-82 VHDL, verilog test case, involving a variety of grammatical rules. which is you learn the HDL language helper.

4个7段lcd同时显示的程序，已经在digilent的nexy2板上通过验证，非常好用易懂，适合初学者学习-display 4 leds

Rotary Encoder Reading the Rotary Encoder and indicating the selection through a LED placed on the front panel. Events counter for the Rotary Encoder and displaying the events on the front panel Project: events counter for the rotary encoder and displaying the events on the SSD Pmod (Seven-Segments Display Programable module).

梁祝音乐verilog code --适用于QUATUS II 开发环境下，适合于verilog入门学员(the verilog code of liangzhu )

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.

数字电路点阵赛车，分为开始前5秒倒计时，59秒计时，赛车显示，赛道显示，失败提示，成功提示，移动控制以及总控制等8个模块。实现由3个开关控制点阵赛车在设置好的赛道中前进或左右移动。

用verilog语言的实现FIFO存储器，以先进先出的方式处理数据(The FIFO memory is implemented in Verilog language, and data is processed in FIFO)

说明：  基于PCF8591数模转换和DDS技术的信号发生器系统设计(Design of Signal Generator System Based on PCF8591 Digital-to-Analog Conversion and DDS Technology)