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It turns out that USB ports on the front of the Kingdel show up as available serial ports. Ports on the back do not. That works for me.
Thanks for the responses.
----- Original Message -----
From: "Rick Engebretson" <[email protected]>
To: "tclug-list" <[email protected]>
Sent: Friday, February 21, 2020 1:40:20 PM
Subject: Re: [tclug-list] usb com ports
If you allow me to talk from memory and a very little digging in my Web
Browser Archives, may I say you are very right for looking into this.
First, below is text copied from an ATMEL Application Note PDF file
without a number, but with the shown title. There are many others like
it on the same topic.
USB
Microcontrollers
Application Note
Migrating from RS-232 to USB Bridge
Specification
Doc Control
Rev
Purpose of Modifications
0.0
Creation date
1.0
updates
Date
24 Nov 2003
22 Dec 2003
References
•
Universal Serial Bus Specification, revision 2.0
•
Universal Serial Bus Class Definition for Communication Devices,
version 1.1
•
USB CDC demo firmware
Abbreviations
•
USB: Universal Serial Bus
•
CDC: Communication Device Class
•
ACM: Abstract Control Model
•
VID: Vendor Identifier
•
PID: Product Identifier
The Arduino shows up as "/dev/ttyACM(X) when attached to Linux via USB,
and behaves just like a terminal port. It does not have all 8 serial
lines active , but does use 2 simulated flow control lines to switch the
Arduino into program mode.
Going further to confuse and encourage you, "Bluetooth" wireless devices
were originally invented to remove the wires of the PC serial ports. And
seem to parallel the USB development path.
Look for /dev/ttyACM0. Add your user to the group "dialout" IIRC. And
have a lot of fun with Arduino and Linux.
[email protected] wrote:
> I have a little kingdel box that has 5 actual, 9 pin serial ports. I am
> working with arduino and need my active usb port to show up as a com
> port, but it doesn't.
>
> ls /dev/tty* does not list any usb devices. Is there a way to make the
> usb port a com port in this case?
>
> Ubuntu 18.04.3 LTS
>
> Raymond Norton
> LCTN
> 952.955.7766
>
>
> _______________________________________________
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
> [email protected]
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>
_______________________________________________
TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
[email protected]
http://mailman.mn-linux.org/mailman/listinfo/tclug-list
_______________________________________________
TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
[email protected]
http://mailman.mn-linux.org/mailman/listinfo/tclug-list