Accessing UART on Win10 Enterprise ltsc

Boesling

Hi Folks,
I'm new with my up2 and I have installed Windows 10 enterprise 2019 ltsc. Now I wrote a small test Desktop programm with c#@VS2017 to test the uart communication via the 40 Pin Header (8,10), but I cannot find it with "SerialPort.GetPortNames". The Device Manager shows under Ports 2 COM-Ports UART Sub device (COM2) and UART Sub device(COM4).
If I try to connect the serial port, I get a IOException.
Can anyone help me on this?
Thank you.

camillus

Hi @Boesling ,

Have you also installed the GPIO drivers?

https://downloads.up-community.org/download/up-squared-pro-windows-10-64-bit-drivers/

Boesling

Hi @camillus ,
Yes, the latest drivers from your link are installed - still the same issue.
If I read the "SerialPort.GetNames", I get no results.
I use a normal c# desktop program (console) for it.

Do you have any other suggestions?
Thank You.

camillus

Hi @Boesling ,

Kindly install UP framework SDK if you have not, after that install the demo apps and run them. If they work correctly, then something could be wrong in your C# program. You can find the link to SDK and demo apps here.

Best Regards,

Boesling

Hi @camillus,
I've installed the framework successfully, but still no success by using the UART from Win10. I think the UART-communication is not handled by the framework, right? I've tried to use the Win32api instead of .net serial port, but also no success.
Is there a special driver needed to use the uart-port with Windows 10 2019 ltsc?
best regards,
Daniel

camillus

Hi @Boesling ,

We are looking into this and will get back to you soon.

Best Regards,

g2as

Hi, any update on this?
I can confirm that the serial ports are listed on the device manager but not accessible on Windows 10 IoT Enterprise 64-Bit LTSC 1809.
Tested with a long used and trusted serial terminal application, the list of serial ports available comes up empty!.
Windows is freshly installed and updated. UP2 drivers, and framework SDK were dowloaded and installed as of today.

It is VERY important to have reialble serial ports available this platform!
Please raise priority on this isue!