与单片机可以串行通信，不需要编程，可以直接使用-Serial communication with the microcontroller, without programming, can be used directly

delphi使用串口通信的控件PC向单片机发送6个字节的数据，单片机收到后返回PC显示。注释我都写很清楚了，你自己稍微改下就可以了。-delphi controls PC using serial communication sent to the MCU 6 bytes of data received and returned to PC display microcontroller. Note I have written very clearly, and you can slight

spcomm组件实现pc与单片机通信功能-spcomm components pc and microcontroller communication function

该程序主要实现了个人计算机和C51单片机间的串口通信程序。-The program achieved a major inter-personal computer and the C51 microcontroller serial communication program.

一个使单片机和上位机通过串口通信的子程序-Com output of a subroutine, using a serial port connection makes the MCU and PC communication software