可以通过串口助手向51单片机发送八个字符并液晶1602显示，单片机收到字符后串口回发给PC，通过串口助手查收，经过实践验证-Assistant through the serial port to send to the microcontroller 51 and the LCD 1602 displays eight characters, the microcontroller serial port back to the issue after receiving character PC, check through the serial port aide, proven