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A
aarom
Associate
March 4, 2024
Solved

I recently bought NUCLEO-G474RE and found a problem.

  • March 4, 2024
  • 2 replies
  • 1161 views

The problem is pin PB4, which is always powered.

It is the same as returning to "STM32CubeG4_Demo_NUCLEO-G474RE.hex".

Do I need to send it in for repair??

How to send??

 

 

Best answer by STTwo-32

Hello @aarom and welcome to the ST Community :smiling_face_with_smiling_eyes:.

The PB4 is internally pulled up after Reset.as you can see on the page 72 of DS12288 Rev 6:

"After reset, these pins are configured as JTAG/SW debug alternate functions, and the internal pull-up on PA15, PA13, PB4 pins and the internal pull-down on PA14 pin are activated."

So, this is normal.

Best Regards.

STTwo-32

2 replies

STTwo-32
STTwo-32Best answer
ST Technical Moderator
March 4, 2024

Hello @aarom and welcome to the ST Community :smiling_face_with_smiling_eyes:.

The PB4 is internally pulled up after Reset.as you can see on the page 72 of DS12288 Rev 6:

"After reset, these pins are configured as JTAG/SW debug alternate functions, and the internal pull-up on PA15, PA13, PB4 pins and the internal pull-down on PA14 pin are activated."

So, this is normal.

Best Regards.

STTwo-32

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A
aaromAuthor
Associate
March 4, 2024

Other functions are currently normal!
It would be better if the pins could be arranged in order!
I can only update the definition using *.h,
Thanks for your reply.

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