JTAG design verilog code.

本设计是基于FPGA设计一个地铁自动售票系统。 本设计采用自顶向下的模块化设计方法，基于FPGA使用VHDL语言设计制作一个地铁自动售票控制系统，该系统能出售2条线路3种不同价位的票，完成售票、找零、显示等功能。(The design is based FPGA design of a subway ticket vending system. This design uses a top-down, modular design method, a subway ticket vending control system based on FPGA using VHDL language design, the system can sell two lines of different priced tickets, complete the ticket, give change, display and other functions .)

说明：  可以获取各种字符，并在数码管显示出来，非常的靠谱且稳定(Various characters can be acquired and displayed on the digital tube.)

说明：  This is code of UVM CALLBACK function.

说明：  demo6 蜂鸣器实验 蜂鸣器演奏音乐(demo6 buzzer buzzer experiment playing music)

基于vhdl的按键检测程序。可以有效消除抖动(vhdl key dectect program)

This VHDL code takes a clock, reset, Capture_EN and SPI data LT2315 ADC and generates SPI_CLK and SPI_nCS of it and reads 12-bit serial data ADC and returns 12-bit parallel data.

可以实现DDC各个模块的功能，如内插、抽取、FIR滤波等功能(DDC can realize the function of each module, such as interpolation, extraction, FIR filtering)

FPGA用于实现crc16编码的verlog源程序，用到的请下载。(FPGA is used to achieve the the crc16 the encoding of verlog source code used to download.)

应用背景此代码是用于执行器和传感器，可以在网络中实现一个很好的连接与其他节点和主。关键技术VHDL代码 ；可以控制位CRC校验和填料-掩模的验收规范

VHDL Handbook by HARDI Electronics AB