fpga的模拟信号发生器

Set a bit and return its old value.

说明：  自己写的CRC的Verilog代码，在网上收集的crc相关的代码以及crc的matlab仿真代码(The CRC Verilog code written by myself, CRC related codes collected on the Internet and CRC matlab simulation code)

用于实现锁相光子计数技术的累加器，verilog语言(Accumulator achieve specific cases for accumulator lock detection of photon counting technique)

说明：  基于ALINX AX7020硬件平台的USB-OTG通信程序。操作系统采用uCOS III v1.41，基本实现了双向USB2.0 块传输（Bulk Transfer）通信，zynq的PS端接收USB数据并回传至主机。经测试，主机端Window10系统采用libUSBK编程时，采用64字节的块时，传输速率可达210Mbps。zynq开发工具为Vivado2015.4，程序包中包含了全部的硬件和软件工程文档。(A USB-OTG communication project where an AX7020 platform is employed as USB device. The embeded operating system is uCOS III of version 1.41, and the FPGA toolchain is Vivado 2015.4. This project implements a full speed bidirectional USB2.0 bulk transfer. A test on Windows 10 host with libUSBK shows that the transfer speed is up to 201Mbps.)

模拟示波器的现实程序，有x，y和光标。采用AD5440输出，现实效果很好。（示波器x-y方式）(Analog oscilloscope reality program, there are x, y and cursor. Using AD5440 output, real good results. (Xy oscilloscope mode))

11阶fir数字滤波器的verilog程序设计，线性相位，系数量化处理(11 order of fir digital filter verilog programming, linear phase, the coefficient quantization)

基于 quartus 2 的 lte 信道估计verilog hdl代码 只有功能仿真 时序仿真自己加sdc文件并且调整testbench的clk才能做出来(Estimated Verilog HDL code based Quartus lte channel only functional simulation timing simulation plus sdc file and adjust the testbench clk to do it)

调整iq幅度不平衡的模块，可以解决载漏和边带问题。(Iq amplitude imbalance adjustment module can be resolved carrier and sideband leakage problems.)

64-point FFT/IFFT processor architecture : Rrdix-SDF

VHDL语言编程简单实例若干，适合于初学者(VHDL language programming simple example, suitable for beginners)