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BOARD STM32 NUCLEO-F334R8

macam1
Associate III

‎2024-08-23 12:26 AM

i am using nucleo-f334r8 and when i connect to the laptop the MCU is hot but the voltage on the VDD does not exceed 3.36V. I want to use another MCU therefore I want to use the DEBUGGER (top part) also what should I unplug (jamper) or should I connect?

board nucleo.jpg

 

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STTwo-32
ST Employee

‎2024-08-23 12:52 AM - edited ‎2024-08-23 12:57 AM

Hello @macam1 

I think this post should be helpful for you. On your case, CN2 connecter should be off.

Screenshot_2024-08-23-08-57-12-64_e2d5b3f32b79de1d45acd1fad96fbb0f.jpg

Best Regards.

STTwo-32 

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macam1
Associate III
In response to STTwo-32

‎2024-08-23 01:08 AM

yes, I have done that, but the MCU is still hot, I want to use another MCU outside of the built-in MCU but I need to disconnect the connection between the debugger and the built-in MCU. I have removed the jumper on the ST_link. I wonder if there are still other jumpers that need to be removed?

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STTwo-32
ST Employee
In response to macam1

‎2024-08-23 01:28 AM

Everything you need to do is mentionned on the part 6.2.4 of the UM1724.

Best Regards.

STTwo-32 

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