verilog motor control

EEPROM 的verilog仿真模型（cat24cxx系列）(verilog simulition Model of EEPROM,include cat24cxx)

一个用FPGA语言设计数字秒表的程序，有相关的源程序和说明-FPGA design using a digital stopwatch language of the procedures and instructions related to the source

说明：  serdes中的8B/10B编码 verilog实现(Implementation of 8B / 10B coding Verilog)

基于FPGA实现的神经网络算法ANN。针对手势识别，不错的参考文章。(Hand Postures Recognition System Using Artificial Neural Networks Implemented in FPGA)

时间同步后即可确定每帧数据的起始位置，这样就能完整的截取下每一帧。但是，数据中还带有频偏信息。在常规的通信系统中，多普勒很小仅仅会带来很小的频偏，但是在大多普勒的情况下，频偏将非常大，20马赫的速度将会带来将近34K的频偏。因此，如何很好的纠正频偏即为本系统的难点。 OFDM中，我们将大于子载波间隔倍数的频偏称为整数倍频偏，而将小于一个子载波间隔的频偏称为小数倍频偏。频偏矫正精度只要能保证小于十分之一倍的子载波间隔，频偏就不会对均衡和解调造成影响。本文中我们借鉴这种思想，由于硬件资源限制，我们将在接收端做64点FFT，即相当于将频域划分为64份，我们将小于 的频偏称为小数倍频偏，将 整数倍的频偏称为整数倍频偏。本程序即基于SCHIMDL经典方法完成小数倍频偏纠正(After time synchronization can determine the starting position of each frame data, so you can complete the interception of each frame. However, in the data with frequency information. In conventional communication systems, doppler small will bring only small deviation, but in the case of most of the doppler, frequency PianJiang is very large, 20 Mach speed will lead to deviation of nearly 34 k. Therefore, how to good to correct deviation is the difficulty of this system. OFDM, we will be bigger than the sub-carrier spacing ratio of frequency deviation is called the integer frequency offset, and the interval will be less than a child carrier frequency offset is called decimal frequency doubling. Deviation is less than one over ten times as long as can guarantee accuracy of sub-carrier spacing, deviation will not affect balance and demodulation. This article, we draw lessons from the idea, due to the limited hardware resources, we will do 64 points FFT at the receiving end, which is equ)

通过verilog语言实现各种基本信号的调制解调过程，包括2psk,qpsk,ppm(Realize the modulation and demodulation process of various basic signals through verilog language, including 2psk, qpsk, ppm)

说明：  利用Verilog语言实现PID增量式控制，输出占空比(Using Verilog language to realize PID incremental control and output duty cycle)

rs255编码解码器，verilog描述，FPGA实现(RS255 223 ENCODER)

本人编写的定点除法器,开发软件为XILINX的ISE6.2,通过PAR仿真.-I prepared for the sentinel division, the development of software for the ISE6.2 Xilinx, PAR through simulation.

library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; entity song is    port(clk_4MHz,clk_4Hz:in std_logic;      ----预置计数器和乐谱产生器的时钟         digit:buffer std_logic_vector(6 downto 0);  ----高、中、低音数码管指示         zero:out std_logic_vector(4 downto 0);     ----用于数码管高位置低