I am using a STM407VET6 development board, and when I connect it via USB, it is recognized as "STM32 ST-Link" as a USB device, but not as a VCP. How can I solve this problem?

[tacchi]

..

[Tesla DeLorean]

Perhaps connect to the other USB port?

If this is the STM32F407-DISCO board, the TOP/NORTH connector goes to an STM32F1

The BOTTOM/SOUTH Micro-AB connects to the STM32F4, and whatever software you have running on that.

[tacchi]

I connect TOP/NORTH connector to a desktop PC.

also did other connector.

The driver has already been reinstalled.

When other boards (F407G-DISC, NUCLEO-F446RE) are connected, they are recognized as VCP.

[KnarfB]

Try re-installing all drivers.

hth

KnarfB

[tacchi]

The driver has already been reinstalled.

When other boards (F407G-DISC, NUCLEO-F446RE) are connected, they are recognized as VCP.

[tacchi]

TOP/NORTH connector to a desktop PC.

The driver has already been reinstalled.

When other boards (F407G-DISC, NUCLEO-F446RE) are connected, they are recognized as VCP.

[waclawek.jan]

> I am using a STM407VET6 development board

What board? Post photo.

​

JW​

​

​

[tacchi]

I'm using​ this board.

[KnarfB]

This board has a ST-LINK/V2-A which does not include VCP. See

STM32F4DISCOVERY Data brief and

TN1235 Overview of the ST-LINK versions.

hth

KnarfB

[KnarfB]

Can add VCP by soldering 2 wires, see UM1472 Discovery kit with STM32F407VG MCU

hth

KnarfB

[tacchi]

Already made wire connections but It was not recognized as a Virtual COM Port in Device Manager.

Could it be that this device does not allow serial communication using TeraTerm or similar?

[KnarfB]

Have you upgrade the ST-LINK firmware uisng STM32CubeProgrammer or such? The tool should state the link type: Debug+MSC+VCP

hth

KnarfB

[waclawek.jan]

This

• is not a genuine ST board, it's a clone
• as the STLink is STM32F103C8T6, it cannot support the STLinkV2-A firmware which has the VCP (that would require STM32F103CBT6), only the older STLinkV2 firmware without VCP

JW

[tacchi]

Understood.

Thank you very much.