hello guys i'm working on STM32F3 board, the port com does not appear when i plug the board on my pc i tried to install the STSW-STM32102 virtual com port driver but still don't work . I don't know what to do, can i get some help please ?

[Mike_ST]

Hello,

is it a custom board ? or an ST board ?

Maybe you simply need to install the ST-Link drivers:

https://www.st.com/en/development-tools/stsw-link009.html

[ANajj.2]

it's an ST board.

i wanna know if the usb st-link and the usb user on the STM32F3 must be the two of them related to the pc or not

[Mike_ST]

To start with your board, you'll see the debug port and virtual COM port on the USB ST-LINK port.

Please check on ST website whether there is a user manual for the board you have.

[Tesla DeLorean]

Sounds like the STM32F3-DISCO, it has two connectors.

To use the USER one you'd need to build a USB Device CDC/VCP

To use the ST-LINK/V2 one you'd need to check the schematic/manual to determine the USART and pins envolved.

For the USER one the STM32 code would need to be functioning correctly otherwise Windows will have all kinds of issues with it, its not tolerant.

[ANajj.2]

i've send data with uart protocol and wanted to visualize this data with this Realterm software but the com port didn't appear and i've used the ST-Link USB.

and i'm out of solutions right now and i can use some help.

[Tesla DeLorean]

Show what you've actually coded, the USART used, and the pins.

[ANajj.2]

nothing it's just a simple code that i want from it to visualise what i just send with the realterm software but the com won't appear