Drivers; Stlink-V3E Firmware Upgrade; Interface; Figure 5. Usb Composite Device - STMicroelectronics STM32H7B3I-EVAL User Manual

6.3.3

Drivers

Before connecting the STM32H7B3I-EVAL board to a Windows PC via USB, the user must install a driver for the
STLINK-V3E (not required for Windows 10). It is available on the
In case the STM32H7B3I-EVAL board is connected to the PC before the driver is installed, some STM32H7B3I-
EVAL interfaces might be declared as Unknown in the PC device manager. In this case, the user must install the
dedicated driver files, and update the driver of the connected device from the device manager as shown in
Figure 5.
Note: Prefer using the USB Composite Device to handle a full recovery.
Note: 37xx:
• 374E for STLINK-V3E without bridges functions
• 374F for STLINK-V3E with bridges functions
6.3.4

STLINK-V3E firmware upgrade

The STLINK-V3E embeds a firmware upgrade mechanism for in-place upgrades through the USB port. The
firmware might evolve during the lifetime of the STLINK-V3E product (for example new functionalities, bug fixes,
support for new microcontroller families). It is recommended to visit the
the STM32H7B3I-EVAL Evaluation board and periodically, to stay up to date with the latest firmware version.
6.3.5

Interface

STLINK-V3E programming connector (CN25)
The CN21 connector is used only for embedded STLINK-V3E programming during board manufacturing. It is not
populated by default and not for the end user.
STLINK-V3E USB Type-B connector (CN21)
The USB Micro-B connector (CN21) is used to connect embedded STLINK-V3E to the PC for debugging of the
board.
UM2662 - Rev 4
www.st.com
Figure 5. USB Composite Device
Hardware layout and configuration
website.
www.st.com website before starting to use
UM2662
page 11/102