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From Microsoft support:
CreateFile() is successful when you use "COM1" through "COM9" for the name of the file; however, the message "INVALID_HANDLE_VALUE" is returned if you use "COM10" or greater.
The text was updated successfully, but these errors were encountered:
SHK24
changed the title
Serial Port doesn't work with serial ports larger COM9
Serial Port doesn't work with serial ports larger COM9 on Windows
Mar 24, 2021
SHK24
changed the title
Serial Port doesn't work with serial ports larger COM9 on Windows
Serial Port doesn't work with serial ports greater COM9 on Windows
Mar 24, 2021
From Microsoft support:
CreateFile() is successful when you use "COM1" through "COM9" for the name of the file; however, the message "INVALID_HANDLE_VALUE" is returned if you use "COM10" or greater.
If the name of the port is \.\COM10, the correct way to specify the serial port in a call to CreateFile() is as follows:
CreateFile("\\.\COM10"...) .
URL: https://support.microsoft.com/en-us/topic/howto-specify-serial-ports-larger-than-com9-db9078a5-b7b6-bf00-240f-f749ebfd913e
The text was updated successfully, but these errors were encountered: