St-Link/V2 (Or V2-B) Firmware Upgrade; Vcp Configuration; Using St-Link/V2 (Or V2-B) To Program/Debug The On-Board Stm32F303Vct6; Figure 6. Usb Composite Device - ST STM32F3DISCOVERY User Manual

Hardware layout and configuration
6.2.2

ST-LINK/V2 (or V2-B) firmware upgrade

The ST-LINK/V2 (or V2-B) embeds a firmware upgrade mechanism for an in-place upgrade
through the USB port. The firmware might evolve during the lifetime of the ST-LINK/V2 (or
V2-B) product (such as new functionalities, bug fixes, and support for new microcontroller
families). Therefore, it is recommended to visit the
use the Discovery board and periodically, to stay up-to-date with the latest firmware version.
6.2.3

VCP configuration

The ST-LINK/V2-B on STM32F3DISCOVERY supports the Virtual COM port (VCP) on U2
pin 12 (ST-LINK_TX) and U2 pin 13 (ST-LINK_RX), which are connected to the STM32F303
MCU target STM32 USART1 (PC4, PC5), thanks to SB13 and SB15 solder bridges.
The SB13 (PC4) and SB15 (PC5) default configurations for STM32F3DISCOVERY are
given in Table 6: Solder
6.2.4 Using ST-LINK/V2 (or V2-B) to program/debug the on-board
STM32F303VCT6
To program the STM32F303VCT6 MCU on the board, plug in the two jumpers marked in red
on CN4, as shown in
connector as that might disturb the communication with the STM32F303VCT6 of the
STM32F3DISCOVERY.
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Figure 6. USB composite device

bridges.
Figure 7: STM32F3DISCOVERY
UM1570 Rev 7
www.st.com website, before starting to
connections, but do not use the CN3
UM1570