STM32 COM PORT DRIVER

[ferraro]

Hello everyone,
I'm really in crisis. I have a STM32F303VC discovery microcontroller and I'm developing a program to make it communicate with LABVIEW through USART.
LABVIEW can communicate only through the COM ports of the PC.

The problem is that when I go to connect my board to the pc, it is read as a USB device and not as 'STMicroelectronics STLink Virtual COM port'.
How can I fix? I'm trying in every way, installing drivers etc but the problem persists.

p.s. I have windows 10 and I can debug the program

[Imen.D]

Hello @ferraro,

You may need to update the STLink firmware.

Imen

[Pavel A.]

Here you can find urgent relief for your crisis. https://www.fiverr.com/categories/programming-tech/electronics-engineering/embedded-systems-iot

[Piranha]

The "discovery microcontroller" and the ridiculous text formatting says it all...

What you mean is a virtual COM port by USB CDC, which is not USART. And it doesn't show up as ST device, because it is your device, which you are developing.

[Tesla DeLorean]

The F3-DISCO has TWO USB connectors, one to the ST-LINK, and one to the F3 itself.

For the F3 you'd need to load a USB CDC firmware into the device, you can change the VID, PID and Descriptors that returns, if need be. You'd need something for which you have a matching USB Driver, or that can use USBSER.SYS.

Most would use the USB CDC and USART connectivity afforded by the ST-LINK/V2-1

Edit your post so as not to use the code pasting tool.. makes it hard to read

"Hello everyone,
I'm really in crisis. I have a STM32F303VC discovery microcontroller and I'm developing a program to make it communicate with LABVIEW through USART.
LABVIEW can communicate only through the COM ports of the PC.

The problem is that when I go to connect my board to the pc, it is read as a USB device and not as 'STMicroelectronics STLink Virtual COM port'.
How can I fix? I'm trying in every way, installing drivers etc but the problem persists.

p.s. I have windows 10 and I can debug the program"

[Pavel A.]

>  And it doesn't show up as ST device, because it is your device, which you are developing.

ST allows to reuse their vendor & device IDs for the VCP example (or do they?)  - otherwise  users would have to pay for their own IDs. And there's no much sense in inventing a creative custom name because Windows 10+ won't show it anyway. The  name displayed by Windows 10+ inbox CDC driver is not based on the firmware string descriptors...

[Piranha]

Windows 10+ shows it as a "USB Serial Device (COM3)". So probably the real issue here is that the guy just doesn't have a proper USB CDC device or USB stack on MCU at all.

[Jaigay]

I have a mLRS MAVLink 900MHz TX Module KIT, mR900-30-TX, and successfully converted it to use it with mR24-30 as a TX in SiKTelem mode: tx-matek-mr900-30-g431kb-siktelem-xxx. It works well under Windows 10 64-bit with STM32 COM PORT DRIVER 5.0.0.0 but it fails to work with Windows 11 64-bit  STM32 COM PORT DRIVER version 1.4.0.0.

How do I get it working under Windows 11 64-bit? I have tried this driver and it does not support Windows 11.