Spcomm, encounter this problem, specially made a test designed to measure the two serial ports, and the monitoring software to monitor, the following figure, figure 1 monitor comm1, figure 2 monitor comm2.
The left is to use a serial port monitoring software

CodePudding user response:

Online and so on, a little worry! Little women thank you first!!!!!!

CodePudding user response:

Words that a machine 5 a serial port can be open

CodePudding user response:

First to see if there really is a serial port 2, if it's USB transfer, the serial number is not a good idea to regularly,

CodePudding user response:

reference js0001 reply: 3/f

first to see if there really is a serial port 2, if it is a USB transfer, the serial number is not a good idea to regularly,

It's best to enumerate several computer serial port, some virtual serial port or mapping is not necessarily as Com1, 2, 3 row
About the enumeration computer serial port, a lot in the BBS, search

CodePudding user response:

On the formshow events

CodePudding user response:

Comport corresponding port, the two are set to 1, of course only disconnect serial port 1

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refer to 6th floor hxy3100 response:

comport corresponding port, only two are set to 1, of course, disconnect the serial port 1

Positive solution

CodePudding user response:

refer to 6th floor hxy3100 response:

comport corresponding port, the two are set to 1, and of course only disconnect serial port 1

sister must be solved about ha ha