MSComm control by PC, dual serial ports to achieve mutual communication, a typical serial communication, serial communication to help you understand the definition of the function

6.1.5.3 利用MSComm控件实现PC机双串口互通信\COM1&COM2.frm
...........................................\COM1&COM2.vbp
...........................................\COM1&COM2.vbw
...........................................\扩展说明.txt
6.1.5.3 利用MSComm控件实现PC机双串口互通信

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