四进制计数器模块，使用VHDL语言编写，在ISE8.1中经过测试的模型-quaternary counter module, the use of VHDL language, in which ISE8.1 tested model

说明：  verilog语言写的SPI接口,全同步设计,低门数,可以很容易应用到嵌入设计方案中.(Verilog language to write the SPI interface, all synchronous design, low gate count. it is very easy to use embedded design programs.)

vhdl code for cyclic cfft control

交织和解交织模块，采用矩阵交织方式，且有两套并行存储器，可以实现连续数据流操作，不会有数据滞留和丢失-Intertwined intertwined reconciliation module, interwoven matrix approach, and has two sets of parallel memory, you can realize continuous data stream operations, will not have data retention and loss

基于SHA-1算法和DS28E01加密芯片的FPGA系统设计，该上传文件为整个设计的系统文件。Quarter软件编程的Verilog程序，包含仿真调试界面。(Design of FPGA system based on SHA-1 algorithm and DS28E01 encryption chip。)

adpcm .c程序代码，完整,通过编译仿真(ADPCM c program code, complete compiled simulation)

使用verliog实现ps2键盘接口的驱动，通过altera cyclone 第四代验证通过(Use verliog implement ps2 keyboard interface driven by a fourth-generation verified by altera cyclone)

LabVIEW FPGA SPI implementation

A Dec example written in VHDL.

千兆以太网设计，包括组包解包，可以实现大数据传输功能。(Unpack the gigabit Ethernet is designed, including group package, can realize large data transfer function.)