SW4STM32C datasheet(89/99 Pages) STMICROELECTRONICS

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Use Nucleo “cutted” ST-LINK as stand-alone VCP

Appendix B

Use Nucleo “cutted” ST-LINK as stand-alone

VCP

As stated in Section 7.2: Printf via UART on page 59, it is required to have an adapter

between MCU and PC to setup a proper serial connection.

Design constraints may prevent to use the default UART connected to VCP, or may require

another serial connection with the PC.

In such a case, it is simpler and cheaper to use another Nucleo board instead of getting the

appropriate RS232 level shifter.

The "Cuttable PCB" capabilities of the Nucleo-64 and Nucleo-144 boards represent their

capacity to disconnect on-board ST-LINK from STM32 application part.

The simple way to disconnect the ST-LINK part from the MCU application part is to power off

the MCU by removing jumper J5. This is indicated by the fact that LED LD3 is off when a

USB cable is connected. This configuration is presented in As show in Figure 67.

Figure 67. ST-LINK cuttable part of Nucleo

In this case the ST-LINK part can be used as a stand-alone module.

As debugger interface to program and debug an external application as documented in

the user manual

–

STM32 Nucleo-144 board: section 6.3.4 of Using ST-LINK/V2-1 to program and

debug an external STM32 application (UM1974)

–

STM32 Nucleo-64 board: Using ST-LINK/V2-1 to program and debug an external

STM32 application (UM1724)

As an alternative and/or additional Virtual-COM port

SW4STM32C Datasheet(PDF) 89 Page - STMicroelectronics