I do view on the VHDL design options for the CPLD or FPGA to achieve HDB3 code

r80515源代码，包含说明文档。FPGA验证通过(r80515 source code, including documentation. Verified by FPGA)

AHDL语言介绍，很详细的介绍AHDL语言介绍，很详细的介绍(AHDL language introduction, a detailed explanation)

说明：  使用STM32官方提供的DSP库进行FFT，虽然在使用上有些不灵活（因为它是基4的FFT，所以FFT的点数必须是4^n），但其执行效率确实非常高效，看图1所示的FFT运算效率测试数据便可见一斑。该数据来自STM32 DSP库使用文档(. Using the official DSP library provided by STM32 for FFT is not flexible in use (because it is the FFT of base 4, so the number of FFT points must be 4 ^ n), but its execution efficiency is really very efficient, as can be seen from the test data of FFT operation efficiency shown in Figure 1. This data comes from STM32 DSP library usage document)

以太网控制器verilog，含有mac,mii接口(Ethernet controller verilog, containing mac, mii interface)

说明：  数字下变频verilog实现，项目中常用模块(apply the digital down frequency in my project)

fir在dspbuilder下产生VHDL源码及其测试激励文件时的matlab模型,在modelsim下仿真通过-fir in dspbuilder VHDL source code under test and document the incentive mat lab model, the simulation under through modelsim

基于FPGA的OFDM的实现，Verilog语言。(OFDM based on FPGA,by Verilog)

在Altera_PFGA上实现POWERLINK从站设计,这是目前最好的的最具爱的实现方案，具有很实用的参考价值。文章介绍了实现方案和主要思路。

TLC5510的驱动程序，采用Verilog语言编写(TLC5510 driver, the use of Verilog language)

在开发板EGO1上实现赛车游戏,语言为verilog，内含bits文件(racing game in verilog)