帧同步信号FPGA实现代码（可正常运行）

SDRAM 控制器的多 CPU 系统的公断人将调度内存访问。

说明：  基于ALINX AX7020硬件平台的USB-OTG通信程序。操作系统采用uCOS III v1.41，基本实现了双向USB2.0 块传输（Bulk Transfer）通信，zynq的PS端接收USB数据并回传至主机。经测试，主机端Window10系统采用libUSBK编程时，采用64字节的块时，传输速率可达210Mbps。zynq开发工具为Vivado2015.4，程序包中包含了全部的硬件和软件工程文档。(A USB-OTG communication project where an AX7020 platform is employed as USB device. The embeded operating system is uCOS III of version 1.41, and the FPGA toolchain is Vivado 2015.4. This project implements a full speed bidirectional USB2.0 bulk transfer. A test on Windows 10 host with libUSBK shows that the transfer speed is up to 201Mbps.)

verilog实现watch dog，可直接用于芯片开发中。(erilog realization watchdog, can be directly used for chip development.)

使用VHDL语言实现的一个自动售货机的程序。适合VHDL初学者使用。(VHDL language using a vending machine program. VHDL suitable for beginners.)

说明：  很好的免费学些 verilog教程 欢迎下载(Learn a good free download verilog tutorials welcome)

通过vga通讯控制显示器显示七彩条文，通过quartus编译的程序，可用-Communication and Control through the vga display colorful provisions quartus compiled through the procedures that can be used

URAT VHDL程序与仿真 URAT the VHDL program and Simulation (URAT the VHDL program and Simulation )

turbo码的编码程序,verilog HDL,在ISE环境中(turbo code encoding process)

频率计VHDL编程。设计一个4位数字显示的十进制频率计，其测量范围为1MHz，测量值通过4个数码管显示以8421BCD码形式输出，可通过开关实现量程控制，量程分10kHz、100kHz、1MHz三档(最大读数分别为9.999kHz、99.99kHz、999.9kHz)； 当输入信号的频率大于相应量程时，有溢出显示。 -Cymometer VHDL programming. Design of a 4-digit decimal display frequency, the measurement range of 1MHz, the measured value through the four LED 8421BCD code shows the form of output can be controlled through the switch range, range at 10kHz, 100kHz, 1MHz Three (maximum reading were 9.999kHz, 99.99kHz, 999.9kHz) when the input signal is greater than the corresponding frequency range, it shows overflow.

一种基于FPGA的通用微处理器设计-A general-purpose FPGA-based microprocessor designs ....