I have a Barth Electronik STG-850 micro PLC, the ST-LINK/V2 ISOL Programmer and a VK-35 programming cable from Barth.

I did everything according to the docs

But I don’t get a Virtual COM Port, just a USB Device “STM32 STLink”.

That doesn’t show up in the Arduino IDE, so no download is possible.

I tried my normal Win 11 Pro PC as well as another running Windows 10. Same behaviour on both machines.

If I run the “ST-LINK_CLI.exe” with the “-List” Argument as described in the docs, I see that the ST-LINK is found but I guess that works through the USB interface:

.ST-LINK_CLI.exe -List
STM32 ST-LINK CLI v3.0.0.0
STM32 ST-LINK Command Line Interface

--- Available ST-LINK Probes List ---

ST-LINK Probe 0:
     SN: 32FF6C063051563945572143
     FW: V2J45S7

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Does anybody know what I need to do in order to get this up and running?