Hardware layout UM1775
14/39 UM1775 Rev 4
6.1.2 ST-LINK/V2-1 firmware upgrade
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 functionalities, bug fixes, support for new microcontroller families), visiting the
www.st.com website is recommended before starting to use the STM32L053 Discovery
board, then periodically to stay up-to-date with the latest firmware version.
6.1.3 VCP configuration
ST-LINK/V2-1 supports the Virtual COM port (VCP). To enable this function, the solder
bridges SB2 and SB3 (See Figure 3: Top layout) for Mbed™ support are closed. Table 7:
Solder bridges indicates this with the ON state.
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