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I'm using STM32F40CCU6 and ST-Link Debugger When I try to enter debug session, IDE say that mcu refused to connect

AMabr.2
Associate

‎2022-10-01 04:53 AM

 
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gbm
Lead III

‎2022-10-01 05:37 AM

A common beginner's problem, addressed dozens of times on this forum. It's easy to find the possible diagnosis and solutions - just use search function.

My STM32 stuff on github - compact USB device stack and more: https://github.com/gbm-ii/gbmUSBdevice
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Imen.D
ST Employee

‎2022-10-02 11:26 AM

Hello @AMabr.2​ and welcome to the Community :)

Have a look at this article which describes the ways to fix debugger connection issues:

How to solve debugger connection issues (st.com)

I hope this helps !

When your question is answered, please close this topic by choosing Select as Best. This will help other users find that answer faster.

Imen

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