In the VB environment using Mscomm control, sending data to the MCU (each click on the Send button to send a byte immediately SCM), SCM received the data so that immediately after the data and then send them to the VB.

3 VB中Mscomm向下位机发送数据并从Mscomm接受数据\3-1\Class1.cls
...............................................\...\Form1.frm
...............................................\...\MSSCCPRJ.SCC
...............................................\...\usart.frm
...............................................\...\实验内容描述及程序代码.txt
...............................................\...\对应单片机程序.txt
...............................................\...\工程1.exe
...............................................\...\工程1.vbp
...............................................\...\工程1.vbw
...............................................\..2\Class1.cls
...............................................\...\Form1.frm
...............................................\...\MSSCCPRJ.SCC
...............................................\...\usart.frm
...............................................\...\实验内容描述及程序代码.txt
...............................................\...\对应单片机程序.txt
...............................................\...\工程1.exe
...............................................\...\工程1.vbp
...............................................\...\工程1.vbw
...............................................\3-1
...............................................\3-2
3 VB中Mscomm向下位机发送数据并从Mscomm接受数据

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