FPGA

定时器加数码管显示源码，以及test bench测试模块源码，经modelsim仿真结果正确(Timer plus digital display source code, and test bench test module source code, by modelsim simulation results are correct)

Computer Arithmetic (press 2000)

以嵌入式CPU和FPGA为基础的嵌入式系统架构-Embedded CPU and FPGA-based embedded system architecture

数控分频器设计:对于一个加法计数器，装载不同的计数初始值时，会有不同频率的溢出输出信号。计数器溢出时，输出‘1’电平，同时溢出时的‘1’电平反馈给计数器的输入端作为装载信号；否则输出‘0’电平。 -NC divider design : an adder counter, loading the initial count value, have different frequency output signal of the overflow. Counter overflow, the output"1 "Level, Overflow at the same time the"1 "level feedback to the counter input signal as loading; Otherwise output"0 "level.

本程序利用VHDL实现二维离散余弦变换，经本人测试，在Quartus II7.0软件上可正确仿真，希望大家积极采纳

在接收信号的数字化、软化的实现中,数字下变频起着重要的作用。本文首先介绍了数字下 变频的组成结构,然后详细分析了数字下变频的工作原理,描述了在实现数字下变频时,设计方案所 采用的高效滤波器———CIC 滤波器和多相抽取滤波器的结构和原理。最后,用通过Simulink 对数字 下变频的性能进行了仿真。在仿真的基础上使用Insight 公司的FPGA 开发系统,用测试电路实测了 数字下变频的性(In the receiving digital signal, softening the realization, the digital down-conversion plays an important role. This article first introduced the digital down conversion of the composition, and then a detailed analysis of digital down conversion of the working principle described in the realization of digital down conversion, the design used in high-performance filters--- CIC filters and multi-phase extraction filter structure and principle. Finally, with the adoption of Simulink for digital down-conversion performance of the simulation. In the simulation based on the use of Insight s FPGA development system is measured using the test circuit of the digital down-conversion of)

摘要：本文主要介绍以CPLD 芯片进行十字路口的交通灯的设计，用CPLD 作为交通灯控制器的主控芯片，采用VHDL 语言编写控制程序，利用CPLD的可重复编程和在动态系统重构的特性，大大地提高了数字系统设计的灵活性和通用性。 关键词：CPLD；VHDL；交通灯控制器 中图分类号：TP39 Abstract ：This paper introduces the electronic-traffic lamp, which is based on the VHDL and is completed by-Abstract: This paper introduces the CPLD chip to the traffic lights at the crossroads of design, traffic lights with CPLD as the master controller chip, the use of VHDL language control procedures, the use of CPLD re-programming and dynamic system reconfiguration in the features greatly enhance the digital system design flexibility and versatility. Keywords: CPLD VHDL traffic lights controller CLC number: TP39 Abstract: This paper introduces the electronic-traffic lamp, which is based on the VHDL and is completed by

本文提出了降低动态功耗有限 Imppulse 跃 (FIR) 数字滤波器的方法这些方法包括低功耗串行乘法器和串行加法器、 移位/添加的乘数，折叠组合展位乘数线性相位结构的改造和应用对 fir 滤波器，以减少功率引致此干扰的消耗也是减少。最小的功率，实现是在基于 8taps 和 8bits 的投入在 100 MHZ 转变/添加乘数 fir 滤波器的功率为 110mw 和 8bits 系数。拟议的 FIR 滤波器，合成了采用 Xilinx ISE 斯巴达 3E FPGA 和权力分析了使用 Xilinx XPower 分析器。

2004 SNUG of systemverilog

说明：  本文详细描述了SSI协议的通讯格式、原理及应用电路,并采用verilog语言实现了SSI通讯协议.设计实用电路并实现了与绝对值编码器的通讯(SSI protocol described in detail the communication format, principle and application circuit, and use verilog language of the SSI protocol. Practical circuit design and implementation of the communication with the absolute encoder)