Can I Use ST-LINK/V2-1 from Nucleo-F446RE to Program an External STM32 MCU?

[MedSid]

I have an STM32 Nucleo-F446RE, which comes with an integrated ST-LINK/V2-1 debugger. I would like to use this ST-LINK to program an external STM32 MCU that does not have a development board.

• I checked the Nucleo schematics, and I see that ST-LINK/V2-1 can be used for external programming.

• I know that I need to connect SWDIO, SWCLK, GND, and  VDD to the external MCU.

• I removed the two jumpers from CN2 to disconnect ST-LINK from the onboard STM32F446RE.

Before proceeding, I want to confirm if this setup is correct, if I need additional components like resistors or capacitors, or if I should buy a dedicated ST-LINK V2 instead.

I appreciate any guidance to help me solve this problem.

Thank you in advance.

[STTwo-32]

Salam @MedSid and welcome to the ST Community.

Your setup should be working just fine. You can use the ST-LINK/V2-1 from Nucleo-F446RE to Program an External STM32 MCU. More details are available on the answer of this post and UM1724.

Best Regards.

STTwo-32

[Andrew Neil]

Of course - instructions are in the User Manual:

https://www.st.com/resource/en/user_manual/um1724-stm32-nucleo64-boards-mb1136-stmicroelectronics.pdf#page=18

via: https://www.st.com/en/evaluation-tools/nucleo-f446re.html#documentation