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In comDebug, why do I get the message “failed to open the com port”?

April 26, 2017comDebug message

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10 Posted

In comDebug, why do I get the message “failed to open the com port”?

1 Answer

0

10 Posted

There two possible reasons for this error. • The COM port is already in use. comDebug needs sole control of the port: if other software has already opened the COM port, comDebug will not be able to access it. • You have selected a COM port that isn’t present on your computer – choose a lower COM port number.