用NiosII实现的数字钟，经过本人测试运行正常，开发环境：QuartusII6.0和NiosII IDE6.0...

按键消抖，对时钟沿计数决定是否将bin值给内部的按键值。(Debounced buttons, whether on the edge of the clock count within the bin value to the key value.)

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

基于对ROM的编写，在quartusII上实现九九乘法器的实现，在试验箱的四个数码管上分别显示乘数，被乘数，积

FPGA MIPS架构CPU，五段流水线功能，ISE开发，verilog语言，可综合，模拟结果正确，内含设计报告(FPGA MIPS CPU, simple five-stage pipeline function, developed by ISE, using verilog language)

关于usb调试相关测试 代码，用于测试和适配等(usb coding for testing , verigy, for studing usb and fpga)

快速付里叶变换子程序所需 RAM 空间以输入的首地址为基址,向增加的方向扩展(Fast Fourier Transform subroutine RAM space required to input the first address of the site was to increase the direction of expansion)

FPGA设计频率计全套资料，我希望对大家啊好似有用的-FPGA design of a full set of frequency data, I hope all of you ah like useful

说明：  FPGA 学习实例 动态时钟、面积、速度优化相关代码(Codes related to dynamic clock, area and speed optimization for learning examples of FPGA)

用VERILOG实现一个被除数为8位、除数为4位的高效除法器(With VERILOG implement a dividend for the 8-bit, 4-bit effective divisor divider)

产生高斯最小相移键控信号的阐述仿真，包括调制解调、信道模型等。(Simulation program to realize GMSK transmission system)