ICAP 回读处理

verilg语言实现测频 及与stm32以fsmc通信方式进行通信(Verilg to achieve frequency measurement and communication with STM32 in FSMC communication mode)

基于System Generator的图像处理工程,多媒体处理FPGA实现的源码,图像基本操作,几何变换,直方图,灰度化处理等(System Generator based image processing engineering, multimedia processing FPGA implementation source code, the basic operation of the image, geometric transformations, histogram, gray processing)

约束所有时钟（包括你的设计中特有的时钟）对准确的时序分析结果而言是必不可少的。Quartus II TimeQuest Timing Analyzer为各种各样的时钟配置和典型时钟提供许多SDC命令。(Constraining all clocks, including the clocks unique to your design, is essential for accurate timing analysis results. The Quartus II TimeQuest Timing Analyzer provides many SDC commands for a variety of clock configurations and typical clocks.)

Basic VHDL code to create a sine wave generator for an FPGA board.

说明：  一个小寄存器堆，使用参数化编程，附有仿真代码，可直接在vivado（2018.2版本及以后）上运行(A small register heap, using parametric programming)

。给出了时域滤波的基本原理以及通常采用的 IIR 椭圆地物杂波滤波器的设计方法。重点研究了回归滤波器这一时域滤波算 法。从正交多项式的拟合出发，给出了回归滤波器抑制地物杂波的基本原理及 其滤波实现过程。通过对回归滤波器的计算复杂度的研究，寻找使回归滤波器 计算量最小的正交多项式。分析了回归滤波器频率响应特性，比较了回归滤波 器与IIR 椭圆地物杂波滤波器的计算复杂度。利用仿真的雷达信号，分析了回 归滤波器的地物杂波抑制性能。回归滤波器实际上是一高通滤波器，它在滤掉 低频地物杂波的同时，对落在滤波器阻带内的天气回波信号同样会造成衰减。 在天气回波信号谱宽固定的情况下，通过改变天气回波信号的平均多普勒频率， 分析了回归滤波器对它的衰减情况。在基于一组实际采集的雷达信号的基础上， 给出了回归滤波器的地物杂波抑制比随着滤波器阶数的变化情况。(Firstly, this dissertation introduces the research background and significance of ground clutter suppression, analyzes the characteristics of the ground clutter and weather signals in the Doppler weather radars and simulates Doppler radar echo signals (It includes ground clutter, weather echo signals and the mixture of them). The simulated signals are used later to study the time and frequency domain ground clutter suppression. Secondly, this dissertation talks about the time domain filtering, gives the basic theory of time domain filtering and describes the design method of the usually used fifth-order elliptic infinite impulse response (IIR) ground clutter filter. In the time domain, the work focuses on the regression filter. From the orthogonal polynomials fit, this dissertation gives the basic theory of the regression filter for ground clutter suppression and the filtering process using a regression filter. Through the study of the computational complexity of regression)

用Hspice实现一个三输入异或门，并分析其功耗和延时。(A three input XOR gate is implemented by Hspice, and its power consumption and delay are analyzed.)

对于学习FPGA的同学来说仿真是必不可少的流程 但是仿真的方法signal tap是必须掌握的(For students learning FPGA simulation is an essential process but the simulation method tap signal is a must)

DDR2 SDRAM仿真模型，适合于ModelSim下工作，请先阅读readme(DDR2 SDRAM Simulation Model which is suitable for modelsim. Please read readme file firstly.)

RS编码是一种纠错码，本程序实现RS（255，223）用FPGA 实现RS编码，程序在Quartus II中调试通过。(RS coding is an error-correcting codes, the procedures for the realization of RS (255,223) with FPGA realization of RS codes, in the Quartus II program through the debugger.)