用FPGA实现的跑马灯设计，各种闪烁样式，适合于初学者练习-FPGA designs implemented with the Marquee, all kinds of flashing style, suitable for beginners exercises

跑马灯、串口、矩阵键盘、蜂鸣器、I2C、数码管、拨码开关 vhdl verilog源代码（精华）-Marquees, serial port, matrix keypad, buzzer, I2C, digital control, DIP switch vhdl verilog source code (extract)