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ST-Link V2 Virtual COM Port Not Working

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Bassman59:

--- Quote from: PKTKS on October 03, 2021, 09:49:26 pm ---Fast forward to about  13 minutes when he presents the solution by device itself

--- End quote ---

Who the hell wants to watch a video and wait for 13 minutes for what might be the solution?

A web page one can scroll through is better in all respects: most of us can read faster than the person speaks on the video. We can print the relevant sections, or copy them to a text file.

This fascination with everything being a YooToob video has to end.

Yes, some things are best demonstrated with a video, like how to pull the side panel off of your car door to get to the window mechanism.  But for the most part, gimme text and some useful screen shots or photos.

PKTKS:
indeed special long ones..

But that was my best shot on this issue.. thanks to my memory..
watched that months ago...

The only other reference heard about this weird issue of NO COM PORT..
is by not having the so called .INF windooze weirdos.

On UNIX my STLINK  clone works fine.
Never failed using a USBtoTTL dongle.

I have no other reference
Paul

AndyC_772:
Just by way of a data point, though sadly, not a solution: I've been using the ST-Link V2 and various COM port adapters for years and, until I read this thread, had no idea at all that the ST-link itself could potentially support a virtual COM port.

I think that means it's nothing specific to you or your PC, but maybe instead it's a feature that requires a driver to be explicitly installed - if, indeed, the V2 does actually support VCP.

T3sl4co1l:
I've certainly seen similar functionality before (i.e., in most relevant IDEs, getting a console along with your debug session), though those might be using ARM core debug/IO functions via SWD/JTAG, not a USART.  But I noticed an example program using USART1 on this particular chip, which on this particular board, I noticed is routed to... the ST-LINK chip, almost as if... but wait, if it just...

...But no, it seems.  |O  But then why even bother!?

There also seems to be a variant with RX/TX pins tossed into the 20-pin JTAG header (replacing a couple GNDs), but it also doesn't exist, or something.

Tim

langwadt:

--- Quote from: T3sl4co1l on October 04, 2021, 07:52:39 pm ---I've certainly seen similar functionality before (i.e., in most relevant IDEs, getting a console along with your debug session), though those might be using ARM core debug/IO functions via SWD/JTAG, not a USART.  But I noticed an example program using USART1 on this particular chip, which on this particular board, I noticed is routed to... the ST-LINK chip, almost as if... but wait, if it just...

...But no, it seems.  |O  But then why even bother!?

There also seems to be a variant with RX/TX pins tossed into the 20-pin JTAG header (replacing a couple GNDs), but it also doesn't exist, or something.

Tim

--- End quote ---

there's varius version of the software for stm32f103 that's used, the nucleo boards have swd +comport+mass storage, some are swd only and there is swd+comport

when running the tool to update the software you can sometimes choose which on you want




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