FPGA通过ps2接收键盘数据，然后把接收到的字母A到Z键值转换相应的ASII码，通过串口发送到PC机上。需要接键盘，还要用调试助手，下载程序后，在键盘上按下一个键，比如A，则在PC调试助手上可看到A-FPGA received by ps2 keyboard data, and then received the letters A through Z keys to convert the corresponding ASII code, sent through the serial po