verilog编写的1024点的fft快速傅立叶变换代码

说明：  此代码为使用SPI 用于实现28335控制AD9959输出信号的频率、幅度(This code uses SPI The Frequency and Amplitude of AD9959 Output Signal Controlled by 28335)

fir filter 程序 老师上课留的作业，在这里跟大家分享一下，希望能有所帮助(fir filter procedures teacher in the class to stay the operation here to share with you, hope can be helped)

说明：  VHDL语言写的SRAM控制程序，在开发板上验证过。(Written in VHDL SRAM control procedures, the development board verified.)

modbus的fpga实现。opencores上最新版本。使用fpga实现，可以大大提高响应速度，对其功能进行模块化。(modbus of fpga implementation. opencores the latest version. Use fpga implementation, can greatly improve the response speed, its function modularity.)

基于DDS的BPSK调制器设计Verilog源码( U57FA u4E8.08 u868)

说明：  设计一简易数字频率计，其基本要求是： 1)测量频率范围0～999999Hz； 2)最大读数999999HZ,闸门信号的采样时间为1s；. 3)被测信号可以是正弦波、三角波和方波； 4)显示方式为6位十进制数显示； 5）具有超过量程报警功能。 5)输入信号最大幅值可扩展。 6）测量误差小于+-0.1%。 7)完成全部设计后，可使用EWB进行仿真，检测试验设计电路的正确性。(The basic requirements of designing a simple digital frequency meter are: 1) The measuring frequency range is 0-999999 Hz. 2) The maximum reading is 999999HZ, and the sampling time of gate signal is 1 s. 3) The measured signal can be sine wave, triangle wave and square wave. 4) The display mode is 6-bit decimal number display. 5) It has alarm function beyond range. 5) The maximum amplitude of input signal can be expanded. 6) The measurement error is less than +0.1%. 7) After completing all the design, EWB can be used to simulate and test the correctness of the circuit.)

自己编写的DDS发生器，方波、三角波、正弦波、还可以输入任意的波形文件

以太网的FPGA程序实现以太网的FPGA程序实现以太网的FPGA程序实现(enternet verilog fpga)

数字钟vhdl实现，在线测试无误，具有闹钟，对表功能(Digital clock vhdl implementation, online testing is correct, with alarm, the table function)

采用vhdl代码描述自适应滤波器，具有很好的可参考性，和实用性(Vhdl code to describe the use of adaptive filter, can be found with a good nature and usefulness of)