用VHDL语言编写的一个控制程序，主要功能是输入码同步，输出字和帧信号...

利用FPGA实现的脉宽测试技术,基于VHDL,测试误差为时钟周期-Use of FPGA technology to achieve the pulse-width test, based on VHDL, test error of clock cycles

通信控制中常用的脉冲宽度检测程序，VHDL模块化编成实现（原创）(communication control used in pulse width detection procedures, VHDL modular organization to achieve (original))

QPSK调制的载波频偏估计，是一个可以调用的函数。接收端进行了一系列的处理。经典的Fitz法(QPSK-carrier frequence offset estimation_ Fitz)

该项目用来测量频率。它有三个范围，其中包括 0.01 赫兹 ~ 1 Hz，1 ~ 100 Hz 和 100 ～ 10000 Hz。这样的结果将是最好的程序能自动调节到最佳的范围内。这个项目是在 Altera 软件 8.1 上进行验证。

对于已获得的脉冲包络采样序列，需测量的脉冲特征参数主要有：脉冲幅值(PA)、脉冲到达时间(TOA)和脉冲宽度(PW)。实际测量中，脉冲波形的形状是各种各样的，但其主要的参数有脉冲幅度、脉冲宽度、脉冲周期、脉冲占空比、脉冲前沿(上升时间)、脉冲后沿(下降时间)、脉冲上冲、脉冲下冲、脉冲下垂、脉冲顶部不平度等，脉冲参数的计量主要就是对这些参数进行计量。本程序包实现基于FPGA实现脉冲宽度和重复周期的测量。(Who have access to the pulse envelope sample sequence, the pulse measurement to be the main characteristic parameters are: pulse amplitude (PA), pulse time of arrival (TOA) and pulse width (PW). The actual measurement, the pulse shape is a wide variety of shapes, but its main parameters of the pulse amplitude, pulse width, pulse period, pulse duty cycle, pulse leading edge (rise time), pulse along (down time), the red pulse, pulse undershoot, pulse droop, pulse irregularities, such as at the top, the measurement of pulse parameters is mainly the measurement of these parameters. The package FPGA-based pulse width and repetition to achieve the measurement cycle.)

用FPGA实现sos摩尔密码，即输出电平信号短长短。就是有次序的控制输出莫斯密码的“点”，“画”和“间隔”。而 control_module.v 是一个简单的定时触发器，每一段时间都会使能sos_module.v。(Realized by FPGA sos mole password, the output signal level of short duration. There is a sequence of output control points Moss password, painting and intervals. And control_module.v is a simple timer triggers, each period of time will enable sos_module.v.)

说明：  该文件包含了实现单周期cpu的全部代码以及实验报告，包括仿真波形以及烧板过程(This file contains all the codes and experimental reports of realizing single cycle CPU, including simulation waveform and download process)

altera嵌入式设计大赛文章，车载cots设计实现-Embedded Design Contest altera article, cots Car Design

说明：  Protel中VHDL设计参考,pdf,不错的一本学习VHDL的书(Protel design in VHDL)

de2_clock on altera de2 board