用VHDL实现一个四位十进制计数器来进行计数，并且仿真通过

FPGA测试程序，仅供测试硬件是否能够运行，主要功能是点亮运行指示灯(The main function of the test program of FPGA is to light the running indicator.)

基于FPGA的16QAM调制器设计与实现(Design and implementation of 16QAM modulator based on FPGA)

蓝牙HCI―UART与并口的FPGA控制接口设计-Bluetooth HCI-UART and parallel port control interface of the FPGA design

Convolutional neural network code for fpga

说明：  实现24小时计时，因为位数不够，这里是12进位，可自行调整进位数(Realize 24-hour timing, because the number of digits is not enough, here is 12 carry, you can adjust the carry number by yourself.)

说明：  PID算法用verilog语言实现，实测可用，由三个模块组成(The PID algorithm is implemented in Verilog language. The actual measurement is available. It consists of three modules.)

实现FPGA接收429板卡发送的信号，并根据数据最后两位点亮相应的LED。(FPGA to achieve the 429 board to receive the signal sent, and according to the data of the last two of the corresponding LED.)

说明：  在Xilinx环境下编写的vhdl程序，实现推箱子的游戏任务，界面很漂亮。(Xilinx environment in the preparation of the VHDL program, realized the game viewing tasks, the interface is very beautiful.)

在几乎所有的数字系统，计数器被广泛使用的领域，如频率

单相数字锁相环 鉴相器 环路滤波器 数控振荡器(Single-phase digital phase-locked loop phase detector loop filter numerically controlled oscillator)