VHDL tutorial for self studying

Library OLED SSD1305

RFID防碰撞算法的研究，以及对其各种算法的仿真，以及改进算法的仿真和比较。(RFID anti-collision algorithm, as well as its simulation algorithms, and improved simulation and comparison algorithms.)

在FPGA硬件上，使用verilog语言编写的一个乘累加器程序。(FPGA hardware, a multiply accumulator verilog language program.)

实现自然对数运算的cordic算法的matlab浮点仿真，以及针对FPGA硬件平台的定点仿真测试(Achieve natural logarithm of cordic algorithm matlab floating point emulation, and FPGA hardware platform for fixed-point simulation testing)

高斯最小频移键控（Gaussian Filtered Minimum Shift Keying），这是GSM系统采用的调制方式。数字调制解调技术是数字蜂窝移动通信系统空中接口的重要组成部分。GMSK调制是在MSK（最小频移键控）调制器之前插入高斯低通预调制滤波器这样一种调制方式。GMSK提高了数字移动通信的频谱利用率和通信质量。(Gauss Filtered Minimum Shift Keying is a modulation method used in GSM system. Digital modem technology is an important part of air interface of digital cellular mobile communication system. GMSK modulation is a method of inserting a Gaussian low-pass pre-modulation filter before the MSK (minimum frequency shift keying) modulator. GMSK improves the spectrum utilization and communication quality of digital mobile communication.)

本文分析比较了实现开方运算的牛顿一莱福森算法、逐次逼近算法、非冗余开方算法种算法,并给出了基于的开方器的实现方法(Root operation FPGA-based implementation.pdf)

数字电子钟设计完整设计，包括原理介绍，程序设计，波形仿真-Design a complete digital electronic clock design, including the principle of introduction, program design, waveform simulation

ad9957的资料，内含有命令字生成器，适合使用该芯片的开发人员(ad9957 data, contains the command word generator for developers using the chip)

在VHDL结构体中用于描述逻辑功能和电路结构的语句分为顺序语句和并行语句两部分，顺序语句的执行方式十分类似于普通软件语言的程序执行方式，都是按照语句的前后排列方式顺序执行的。(VHDL structure in the body used to describe the logic function and circuit structure of the order of statements and expressions are divided into two parts in parallel statement, modalities for the implementation of the order of statement is very similar to ordinary language software program implementation, are in accordance with the statements before and after the arrangement of the order implementation.)

说明：  利用verilog写的PWM 程序，来实现产生呼吸灯的效果。(Using xerilog to generate breathing lamp)