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[jantje]

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[Catephatic]

Hi, I am running Sloeber Product on W10 and when I go Project->Properties->Arduino I am unable to get any USB ports listed for selection (only COM1) whatever Board or Upload Protocol I try. What do I need to do to get the USB ports offered?
Thanks

[jantje]

If there is only the port "COM1" it means Sloeber only finds "COM1". Sloeber always lists all found ports.
So the selection of the protocol does not change the list of com ports.
The ports are "searched" when the Project->Properties->Arduino view is opened. SO making changes to the connected boards will only be reflected when you close and reopen the Project->Properties

Note that
You can type anything as a com port but if it is not found by Sloeber it is very unlikely it will work out for you

[Catephatic]

Thank you very much for you quick reply. I have gone back to my older PC for the moment for my development, but I would very much like to move to the new PC if I can get uploading working. I am not sure how Sloeber makes the API call to poll the hardware peripherals, but for some reason on this PC (Dell Optiplex 7040 W10) the API call is returning nothing. I will try to do some more research to see if I can find an explanation. From: jantje Sent: Friday, November 26, 2021 5:40 PM To: Sloeber/arduino-eclipse-plugin Cc: Catephatic ; Comment Subject: Re: [Sloeber/arduino-eclipse-plugin] Welcome to arduino-eclipse-plugin Discussions! (Discussion #1288) If there is only the port "COM1" it means Sloeber only finds "COM1". Sloeber always lists all found ports. So the selection of the protocol does not change the list of com ports. The ports are "searched" when the Project->Properties->Arduino view is opened. SO making changes to the connected boards will only be reflected when you close and reopen the Project->Properties Note that You can type anything as a com port but if it is not found by Sloeber it is very unlikely it will work out for you — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe. Triage notifications on the go with GitHub Mobile for iOS or Android.

[jantje]

The list of com ports on windows is fetched here
https://github.com/Sloeber/arduino-eclipse-plugin/blob/master/io.sloeber.core/src/io/sloeber/core/api/Serial.java#L122
As you can see it is a jssc call
The jssc library comes with sloeber https://github.com/Sloeber/arduino-eclipse-plugin/tree/master/io.sloeber.core/lib and is currently version 2.9.2 but the nightly is on 2.9.4 (so may contain fix)
If I would be investigating this issue I would start there.
What is the actual used jssc on my system?
Are there known/reported incompatibilities between jssc and the hardware I run
What are the jssc version 2.9.2 and later bugs
How do jssc versions an java versions relate
...

[ianr34]

the most likely thing is that you haven't installed the right usb driver - ie 340G or cp210X etc. Thus it isn't coming up as a serial port.

ie first thing to check is in device manager to see if you actually have a com port for it to find... I've never know sloeber not to find one if it is there.

[darek-i-rafal-i-zbychu]

Sometimes it happens that despite connecting the programmer to the computer, it is not visible as a COM port. What is the reason?

The reason is usually that the system does not have the correct driver installed to support the programmer. In order for it to be available and visible as a virtual COM, you must install a VCP type driver.