8位深，9位宽FIFO VHDL源码设计，如需改进可在此基础上扩展

使用Altera公司的FPGA进行VHDL开发。使用quartus2 9.0软件在EP1C3T144C8开发板上实现先进先出的队列。-The use of Altera" s FPGA-VHDL development. Use quartus2 9.0 software EP1C3T144C8 Development Board to achieve FIFO queue.

实现大型LED屏显示的CPLD程序，对FPGA学习很有帮助-To achieve large-scale LED screen display of the CPLD program, very helpful for learning FPGA

说明：  64位数据的CRC-32校验的，Verilog实现，算法并行优化(64-bit data CRC-32 checksum, Verilog implementation of a parallel optimization algorithm)

Cypress USB 的主从FPGA 控制实现代码(USB controller)

单相数字锁相环 鉴相器 环路滤波器 数控振荡器(Single-phase digital phase-locked loop phase detector loop filter numerically controlled oscillator)

采用VHDL编写的步进电机控制程序-stepping motor controlling program written by VHDL

基于FPGA器件的DDS设计实现中的一个核心部分就是波形存储表的设计。首先采用LPM_ROM和 VHDL选择语句这两种方法进行波形存储表的设计和比较分析 然后考虑到硬件资源的有限性及DDS的精度要 求,对这两种方法的程序进行了优化 最后对这两种方法设计的程序进行仿真和硬件调试。结果表明:采用这两种 方法都能有效地实现DDS中波形存储表的设计。 (DDS-based FPGA devices designed to achieve one of the core of the waveform is stored in table design. First of all, choose to adopt LPM_ROM and VHDL statements of these two methods for the design waveform storage tables and comparative analysis and then, taking into account the limited hardware resources and the accuracy of DDS, the two methods to optimize the process the last of these two methods of process design simulation and hardware debugging. The results showed that: the use of these two methods are all effective ways to achieve the DDS waveform stored in the table design.)

这是一个用VHDL语言描述的I2C自动配置模块，使用了来自opencores.org的I2C核，已在altera的cyclone芯片上调试通过-This is a VHDL language used to describe auto-configuration of the I2C module, the use of the I2C from opencores.org nucleus, the cyclone in the altera-chip debugging through

适用于FPGA的SOPC方面的元器件添加，如COMPNENT-Applicable to FPGA-SOPC area to add components, such as COMPNENT