Vhdl 语言设计的 16 根 4 点 FFT

quartus ii 环境下，一个完整的利用TEXTIO仿真的源代码，包括读数据文件和输出数据到文件。(Under quartus ii environment, a complete simulation using TEXTIO source code, including reading data files and output data to a file.)

VHDL编写的4个led灯循环明暗变化，通过改变波形占空比实现，课堂作业自编程序-VHDL prepared by the four led lights cycle shading changes, by changing the waveform duty cycle to achieve, self-compiled class operating procedures

buffer_display是4X4KEYPAD的输出显示模块。可以显示6个连续的按键-buffer_display is 4X4KEYPAD output module. It showed six consecutive Press

实现多路可变时分复用，包括复接器，解复接，比特同步，帧同步，分频器(Implement multi-channel variable time division multiplexing, including multiplexer, demultiplexing, bit synchronization, frame synchronization, frequency divider)

说明：  fpga实现相关滤波算法中的CSK算法，采用仿真的方式验证结果 fpga是xilinx 仿真工具是vivado2018.2 语言是verilog(The CSK algorithm is implemented in FPGA, and the results are verified by simulation FPGA is Xilinx The simulation tool is vivado 2018.2 Language is Verilog)

RS（255，223）编码器，已实际运用到产品中(RS (255,223) encoder has actually applied to products)

以GPS为时间基准，实现多传感器器数据同步采集，整合信息后发送 VERILOG语言编写 QUARTUS II环境(GPS-time basis, synchronized multi-sensor data acquisition, integration of information after sending VERILOG language environment QUARTUS II)

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)

通信中加扰/解扰算法。FPGA源代码，verilogHDL语言实现，包含测试程序。(Perturbation/perturbation algorithm. FPGA source code, verilogHDL language implementation, including test procedures.)

是codic算法实现atan的C程序，包括定点和浮点程序，已经通过验证。(Atan is codic algorithm of C procedures, including fixed-point and floating-point procedures, has been validated.)