AHB 总线协议

与单片机相比，用CPLD/FPGA器件更适合于直接对高速AD采样控制。本实验接口器件为ADC0809，根据ADC0809的工作时序使用CPLD产生该控制信号，CPLD启动AD转换后，得到的数据送至单片机并在PC机及数码管上显示AD转换结果。(Compared with the microcontroller, CPLD/FPGA devices more suitable for direct sampling control of high-speed AD. The interface of the experimental device for the ADC0809 ADC0809 Timing CPLD is used to generate the control signal, the CPLD to start the AD conversion, the data sent to the microcontroller and the AD conversion result on the PC and digital tube display)

a、设计可显示横彩条和纵彩条的VGA彩条信号； b、设计可显示英语字母的VGA彩条信号； c、设计可显示移动彩色斑点的VGA彩条信号； d、设计可实现手动切换a、b、c三个功能.(The design can display VGA color color and color of the longitudinal cross signal. The design can display the VGA color signal of the English alphabet. The design can display the VGA color signal of mobile color spots.)

用verilog语言实现基于DDS技术的余弦信号发生器，其输出位宽为16比特(Verilog language cosine signal generator based on DDS technology, the output bit width is 16 bits)

这是基于verilog hdl的数字时钟源代码，能够实现时分秒的计时，可以手动进行调时与调分。(This is based on the digital clock verilog hdl source code, can be achieved when every minute of the time, you can adjust the time manually adjusting points.)

本书共由三篇组成。其中第一篇由第1~3章组成，介绍PCI总线的基础知识。第二篇 由第4~13章组成，介绍PCIExpress总线的相关概念。第二篇的内容以第一篇为基础。(This book comprises a total of three components. The first chapter from the first 1-3 chapters, introduces the basics of the PCI bus. Second by the first 4 to 13 chapters, introduces concepts related PCIExpress bus. The contents of the first to second basis.)

扰码器的FPGA实现，选择的扰码器规格为15位移位寄存器。(FPGA scrambler, scrambler specifications for a 15 bit shift register.)

实现x轴，y轴的两项脉冲控制，利用圆弧插补法，基于verilog语言编程，很好的实现插补算法。程序可以在modelsim中仿真，显示所需输入输出信号及clk时钟、start开始、busy终止信号

基于IP核RAM的同步fifo设计，工程使用Xilinx的开发软件ISE(RAM-based synchronization fifo IP core design, engineering, software development using Xilinx ISE)

说明：  本代码完成了一位数的加减法运算，并实现了在LED屏幕上的显示操作过程(This code completes the addition and subtraction operation of one digit, and realizes the display operation on the LED screen)

A design on a DE270 FPGA with the use of CCD: a camera DC2 and a TRDB LTM after reading from the SRAM.