Error: "System cannot find the file specified." opening port when port number is high ex: "COM15"

[Edgar242]

I have windows 10 and when I try to open serial port "COM15" I got:
"System cannot find the file specified."

the issue is solved if I manually changed it to another closer port to COM1 for example: "COM2"

[Edgar242]

Problem is solved here:

goburrow/serial#13

[alikxus]

Hello, Problem is not solved. I use com10 and i recieved - COM10 - The system cannot find the file specified. I need your help

[Edgar242]

Hello, Problem is not solved. I use com10 and i recieved - COM10 - The system cannot find the file specified. I need your help

Check this pull request, it has the changes needed
goburrow/serial#13

[alikxus]

Hello, Problem is not solved. I use com10 and i recieved - COM10 - The system cannot find the file specified. I need your help

Check this pull request, it has the changes needed
goburrow/serial#13

Do I understand correctly? i need use this string, for example:
handler := modbus.NewRTUClientHandler("\\.\com10")

[Edgar242]

Hello, Problem is not solved. I use com10 and i recieved - COM10 - The system cannot find the file specified. I need your help

Check this pull request, it has the changes needed
goburrow/serial#13

Do I understand correctly? i need use this string, for example:
handler := modbus.NewRTUClientHandler("\.\com10")

Yes, I think name must be in uppercase: "\\.\COM10"
Can you try please?

[alikxus]

thank you, editor deleted first 2 back slaches

this way work for me.
and it work without uppercas

[Edgar242]

thank you, editor deleted first 2 back slaches

this way work for me.
and it work without uppercas

Great, nice to know!

[Tamilselvan-sakthivel]

i am using windows 7, if i use the above mentioned method i am getting same error.

CreateFile("\\.\COM2", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING,0, NULL);

can anyone help me on this ?

[Edgar242]

CreateFile("\.\COM2", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING,0, NULL);

You should do it on this way:
CreateFile("\\\\.\\COM2", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING,0, NULL);

[Tamilselvan-sakthivel]

tried that too, but still same