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STLink-v3Mods Pinout

axeluziel
Associate

‎2025-08-15 11:38 AM

Hello, I just bought a Stlink-v3mods. I was wondering what's the pinout of the cn3 connector. I couldn't find anywhere on the documentation.

 

Thanks.

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AScha.3
Super User

‎2025-08-15 12:53 PM

Hi,

same as on V3 mini : reserved, maybe its the SWD for programming the 723 cpu.

https://community.st.com/t5/stm32-mcus-boards-and-hardware/stlinkv3-mini-cn3-and-reset-usage/m-p/281322

AScha3_0-1755287566884.png

 

If you feel a post has answered your question, please click "Accept as Solution".
Imen.D
ST Employee
In response to AScha.3

‎2025-08-16 3:21 AM

Hello,

CN3 is a system connector not associated to any user's function.

When your question is answered, please close this topic by clicking "Accept as Solution".
Thanks
Imen
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