VHDL实现SPI接口转I2c接口的源代码，可以直接调用

HLD开发语言ADHL介绍。ADHL是ALTERA公司开发的硬件描述语言，也是一种较为流行的开发工具。是介绍AHDL的入门培训资料。-HLD development language ADHL introduction. ADHL is ALTERA developed hardware description language, but also a more popular development tools. AHDL is the introduction of induction training information.

用VHDL实现了希尔伯特滤波器,即就是幅度不变，而相位移动90度(use vhdl to accomplish the hilbert filter)

该模块已经成功运用在xilinx xc6slx45t，xc6slx75t多个产品中，经过实践证明，采用dna及其加密算法加密是一种成本低廉（无需另外加密芯片）可靠的加密手段。Xilinx Spartan-6 FPGA读取DNA数据并进行比较，产生比较结果信号输出。附带有xilinx DNA.ppt说明及调试注意事项。(The module has been successfully used in xilinx xc6slx45t, multiple xc6slx75t products, proven, and the encryption algorithm uses dna is a low-cost (no additional encryption chip) reliable means of encryption. Xilinx Spartan-6 FPGA reads the data and compare DNA to produce a comparison result signal output. Xilinx DNA.ppt comes with instructions and commissioning notes.)

说明：  quartusII 9.1，位同步提取电路，可以实现位同步时钟提取，其中包括分频器，和由D触发器以及与门组成的鉴相器模块。(Quartus II 9.1, bit synchronous extraction circuit, can realize bit synchronous clock extraction, including frequency divider, phase discriminator module composed of D trigger and and gate.)

去抖动状态机,外部按键转换状态,同时可去抖动-To shake state machine, the external key conversion state, while to the jitter

一个在CPLD，EPM70128上实现的PWM控制源程序。-A CPLD, EPM70128 realize the PWM control on the source.

VLSI implementation of high speed and high resolution FFT algorithm based on Radix 2 for DSP application

lap of altera . it s basic about verilog

costas的verilog程序，包含乘法器，DDS，鉴相器，环路滤波器等模块(costas the verilog program, including multipliers, DDS, phase detector, loop filter modules)

这里是apb总线设计代码。这个源程序是基于verilog语言设计的(Here is the APB bus design code. This source program is designed based on Verilog language)