design through verilog hdl

NiosII的C代码,包括网卡,lcd,usb,串口,按键.(NiosII C code, including network cards, lcd, usb, serial, key.)

The ElectricTM VLSI Design System is an open-source Electronic Design Automation (EDA) system that can handle many forms of circuit design, including: * Custom IC layout * Schematic Capture (digital and analog) * Textual Languages such as VHDL and Verilog (The ElectricTM VLSI Design System is an open-source Electronic Design Automation (EDA) system that can handle many forms of circuit design, including:* Custom IC layout* Schematic Capture (digital and analog)* Textual Languages such as VHDL and Verilog)

verilog编写的RTC（实时时钟）包含APB总线接口、时钟计时部分等(verilog prepared by the RTC (real time clock) contains APB bus interface, clock time some other)

根据音乐发生的机理，将复杂可编程逻辑器件作为发生音乐的核心器件，用高速集成电路硬件描述语言编程描述发生的音乐乐谱，配合周边硬件电路，由电声转换发声器接收信号，从而发出音乐声，实验表明，采用该方法设计的音乐发生器成本低、修改方便-Music took place in accordance with the mechanism of complex programmable logic device, as occurred in the core of music devices, with high-speed integrated circuit hardware description language to describe the occurrence of music notation, with the peripheral hardware circuits, electro-acoustic conversion by the audible signal device to receive signals, which issued music, experiments show that this method of music generator design and low cost, easy to amend

基于FPGA的波束形成，包括ad转换，数据存储等部分。。(FPGA-based beamforming, including ad conversion, data storage and other parts. .)

本文介绍了一个使用 VHDL 描述计数器的设计、综合、仿真的全过程，作为我这一段 时间自学 FPGA/CPLD 的总结，如果有什么不正确的地方，敬请各位不幸看到这篇文章的 大侠们指正，在此表示感谢。当然，这是一个非常简单的时序逻辑电路实例，主要是详细 描述了一些软件的使用方法。文章中涉及的软件有Synplicity 公司出品的Synplify Pro 7.7.1； Altera 公司出品的 Quartus II 4.2；Mentor Graphics 公司出品的 ModelSim SE 6.0。 -This article describes a VHDL description of the use of counter design, synthesis, simulation of the entire process, this time as my self-FPGA/CPLD summary, if what has not the right place, please see this article that, unfortunately, the heroes They correct me, wish to express my gratitude. Of course, this is a very simple example of sequential logic circuit is mainly a detailed description of a number of software usage. Article involved in the software company has produced Synplicity

数字秒表的VHDL代码。当设计文件加载到目标器件后，设计的数字秒表从00-00-00开始计秒。，直到按下停止按键（按键开关S2）。数码管停止计秒。按下开始按键（按键开关S1），数码管继续进行计秒。按下复位按键（核心板上复位键）秒表从00-00-00重新开始计秒。(The VHDL code for digital stopwatch. When the design document loaded into the target device, the designed digital stopwatch count the seconds from the 00-00-00. Until you press stop key (key switch S2). Nixie tube stop count seconds. Press the start button (key switch S1), the digital control continue to count seconds. Press the reset button (core panel reset button) to restart the stopwatch count seconds from the 00-00-00.)

四位拨妞开关作为输入，当输入值变化时将其转化成两位输出(The four DIP Niu switch as an input, when the input value changes, be converted into two output)

说明：  一个完整的雷达系统仿真MATLAB程序，非常具有参考价值(A complete radar system simulation MATLAB programs have great reference value)

AVR IP CORE 可以直接用于工程的开发和 已经通过编译和仿真-AVR IP CORE can be directly used for project development and has passed the compiler and simulation