Hardware layout and configuration UM1724
14/55 DocID025833 Rev 4
5.2.1 Drivers
The ST-LINK/V2-1 requires a dedicated USB driver, which can be found on www.st.com for
Windows Vista, 7 and 8. On Windows XP the ST-LINK/V2-1 driver requires WinUsb to be
installed before using the ST-LINK/V2-1 (either available from Microsoft website or included
in the USB driver for ST-LINK/V2 for XP).
In case the STM32 Nucleo board is connected to the PC before the driver is installed, some
Nucleo interfaces may be declared as “Unknown” in the PC device manager. In this case
the user must install the driver files (
Figure 6), and from the device manager update the
driver of the connected device.
Note: Prefer using the “USB Composite Device” handle for a full recovery.
Figure 6. Updating the list of drivers in Device Manager
5.2.2 ST-LINK/V2-1 firmware upgrade
The ST-LINK/V2-1 embeds a firmware upgrade mechanism for in-situ upgrade through the
USB port. As the firmware may evolve during the life time of the ST-LINK/V2-1 product (for
example new functionality, bug fixes, support for new microcontroller families), it is
recommended to visit www.st.com before starting to use the STM32 Nucleo board and
periodically, in order to stay up-to-date with the latest firmware version.
5.2.3 Using the ST-LINK/V2-1 to program/debug the STM32 on board
To program the STM32 on the board, plug in the two jumpers on CN2, as shown in red in
Figure 7. Do not use the CN4 connector as this could disturb the communication with the
STM32 microcontroller of the STM32 Nucleo board.
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