这是一个HDB3的译码器，实现从HDB3双极性码到高低电平二值序列的转化...

FPGA，串口调试程序，接收模块，含FIFO IP核(FPGA uFF0C u4E32 u53E3 u8C03 u8BD5 u7A0B u5E8F uFF0C u63A5 u6536 u6A21 u5757 uFF0C u542BFIFO IP u6838)

VHDL语言100例详解，北京理工大学ASIC研究生出版，这里是21-50个examples-VHDL language of 100 cases explain, Beijing Institute of Technology, Graduate ASIC published examples here are 21-50 months

说明：  2018全国大学生FPGA创新设计大赛南京总决赛封闭测试题目，以及自己编写的verilog和testbench，欢迎学习借鉴(The closed test topic of the 2018 National Undergraduate FPGA innovation design competition Nanjing finals, as well as Verilog and testbench compiled by ourselves, are welcome to learn)

说明：  基于altera fpga的fir IP核实现希尔伯特变换，有matlab仿真(Based on Altera FPGA fir IP core to achieve Hilbert transform, matlab simulation)

很好的tft参考实列，通用的8位并口，非常快移值-Tft good reference is listed, eight general-purpose parallel port, very fast shift value

说明：  本书从电子技术和通信系统的角度讲解gps接收机的设计开发原理，其内容集中在用户终端，即接收机的设计原理和软件实现上。全书分为两大部分，第一部分为理论篇，第二部分为实现篇。理论篇首先对导航的基本目的进行了阐述，并由一个浅显的二维导航系统对导航信号的特点进行了推导，随后阐述了gps信号格式，同时对于直接影响接收机性能的射频前端部分做了理论分析；实现篇主要对本书实现的软件gps接收机的系统实现和源代码进行了讲解，同时作为总结，将信号处理的结果和有意义的中间变量以图示的方式给出，可以使读者有一个感性的认识，同时提升学习兴趣。. 本书适合从事卫星导航接收机研发的技术人员和卫星通信接收机研究的研究人员，尤其是从事北斗系统研发的专业人员、cdma通信系统研发人员，以及通信电子类专业的高年级本科生和研究生阅读，既可作为教学培训的教材，也可作为相关专业工程技术人员的参考资料。(This book explains the design and development principle of the GPS receiver from the perspective of electronic technology and communication system. Its content focuses on the design principle and software implementation of the user terminal, that is, the receiver. The whole book is divided into two parts. The first part is the theoretical part and the second part is the realization part. Firstly, the basic purpose of navigation is expounded, and the characteristics of navigation signal are deduced by a simple two-dimensional navigation system. Then, the format of GPS signal is expounded. At the same time, the front-end part of radio frequency which directly affects the performance of the receiver is theoretically analyzed.)

GW48系统电子琴：可控制8个音节，4种音调 readme中带使用说明-GW48 system : control eight syllables, four species of taking the pitch readme use

关于基数分频技巧设计,基于VHDL语言,对实际设计有帮助-DIVIDE

电梯控制 记忆，上升下降停站 超载报警故障.....。-Verilog EDA dianti

占空比1：1的通用分频模块-1:1 generic-frequency module