FPGA design of the guiding principles, it is classic! Want to give everyone easy

使用STM32官方提供的DSP库进行FFT，虽然在使用上有些不灵活（因为它是基4的FFT，所以FFT的点数必须是4^n），但其执行效率确实非常高效，看图1所示的FFT运算效率测试数据便可见一斑。该数据来自STM32 DSP库使用文档(. Using the official DSP library provided by STM32 for FFT is not flexible in use (because it is the FFT of base 4, so the number of FFT points must be 4 ^ n), but its execution efficiency is really very efficient, as can be seen from the test data of FFT operation efficiency shown in Figure 1. This data comes from STM32 DSP library usage document)

说明：  ethernet mac vhdl verilog basic

说明：  基于FPGA的CAN总线控制器，VERILOGHDL源代码，Q2仿真实现。可用。(FPGA-based CAN Bus Controller, VERILOGHDL source code, Q2 Simulation. Available.)

说明：  介绍如何使用 FPGA 内部的 ROM 以及程序对该 ROM 的数据读操作。(This paper introduces how to use the ROM inside the FPGA and how to read the data of the ROM by the program.)

说明：  制作16位流水灯，实现LED模块对于拨杆0和1的识别(Making 16-bit pipeline lamp to realize the recognition of dial rod 0 and 1 by LED module)

fifo的代码,经过测试可以使用，很有用处，可以放心使用(a fifo module,the code has been tested and it is usefull)

4x4鍵盤使用語法為VHDL，基於cyclone(4 x 4 keyboard using VHDL)

verylog语言编程，为异步flipflop的程序。具有数据传输功能，数据位数可以用户设定(verylog language programming for asynchronous Flipflop procedures. With a data transmission function, data can be user set the median)

matlab file for image contrast..

Simple relay trigger