MII bus verilog code

Floating Point FP multiplication is widely used in large set of scientific and signal processing computation. Multiplication is one of the common arithmetic operations in these computations. A high speed floating point double precision multiplier is implemented on a Virtex 6 FPGA. In addition, the proposed design is compliant with IEEE 754 format and handles over flow, under flow, rounding and various exception conditions. The design achieved the operating frequency of 414.714 MHz with an area of 648 slices.

Advanced FPGA Design - Architecture, Implementation, and Optimization(Advanced FPGA Design- Architecture, Implementation, and Optimization)

实现Verilog编程，实现超声波测距模块实现测距功能，并将测得的距离显示在数码管上(Verilog programming is realized, ultrasonic ranging module is realized, and the measured distance is displayed on the digital tube)

本文提出了基于 FPGA 用 Verilog 和其执行的锁相环设计。采用 Verilog HDL 设计了锁相环。针对采用赛灵思 ISE 12.1 模拟器用来模拟Verilog 代码。本文给出了锁相环的基本块的详细信息。在本文中，中详细描述了的锁相环实现。使用针对采用赛灵思及其仿真结果也是讨论了。它还提出了针对采用赛灵思 SPARTAN3E 锁相环设计的 FPGA 实现XC3S200 芯片，它的结果。锁相环设计 200 千赫的中心频率。的锁相环工作频率范围是设计的 189 Hz 至 215 千赫，锁系列

说明：  ? 熟悉IIC协议总线协议，采用IIC总线对图像采集传感器寄存器进行配置，并转换为RGB565格式。 ? 利用异步FIFO完成从摄像头输出端到SDRAM 和SDRAM 到VGA 接口各跨时钟域信号的传输和处理。 ? 利用 SDRAM 接口模块的设计，实现了刷新、读写等操作；为提高SDRAM 的读写带宽，均采用突发连续读写数据方式；并采用乒乓操作实现 CMOS 摄像头与VGA的帧率匹配。 ? 利用双线性插值方法实现对图像640×480到1024×768的放大操作。 ? 完成VGA显示接口设计。(Familiar with IIC protocol bus protocol, IIC bus is used to configure the register of image acquisition sensor and convert it into RGB565 format. Asynchronous FIFO is used to transmit and process signals across clock domain from camera output to SDRAM and SDRAM to VGA interface. With the design of SDRAM interface module, refresh, read and write operations are realized. In order to improve the read and write bandwidth of SDRAM, burst continuous read and write data mode is adopted, and table tennis operation is used to achieve frame rate matching between CMOS camera and VGA. The bilinear interpolation method is used to enlarge the image from 640*480 to 1024*768. Complete the VGA display interface design.)

以DE2为开发平台，采用Veriolg语言编程，实现了DDS信号输出，频率，步进，波形输出均可调，采用Modelsim以及FPGA内嵌逻辑分析仪验证设计的正确性，可以满足一定的工程需求。

FIR带通、带阻滤波器设计，需要输入截止频率以及容许偏差。(FIR band pass and band stop filter design)

PWM计数器产生各种占空比，采用IPCORE。THE SAME实现IN SPARTAN3E，SPARTAN3和获得的结果。和FSM也编码生成一个序列的101101。

Avt_S6LX9_MicroBoard_UCF_110127，有关xilinx spartan6开发板的相关参考设计。(Adding Custom IP to an Embedded System, the relevant reference on xilinx design.)

基于fpga的数字电压表的设计，包括ad转换，bcd码转换，分频，3选1模块，小数点生成模块，显示模块组成。(Based on the FPGA digital voltage meter design, including AD conversion, BCD code conversion, frequency,3 choose1module, a decimal point generating module, display module. )