Error in initializing ST-LINK device. Reason: Failed to reset target.

[Paul.Lee]

Hi.
I made 3~4 F401RTCU boards and have no problem.
But, last board cannot use STM32CUBEIDE debug mode.

Target reset error is occurred.
I can program hex to this board by st-link utility but stm32cubeide cannot debug this board.
This error comes from H/W problem?
Reset circuit looks no problem, I use normal reset circuit. R/C circuit.
Please help me.

 

[Peter BENSCH]

Can you please show us a photo of your ST-LINK?

Regards
/Peter

[Paul.Lee]

Hi,

I attached my st-link
With this, I can do debug other F401 board now.

But, for last board, I cannot.

[Peter BENSCH]

Please upgrade STM32CubeIDE 1.11.2 and STM32CubeProg to the latest version. It would also make sense to update the firmware on the ST-LINK/V2, which you can do from the CubeProg, alternatively via the CubeIDE.

[Paul.Lee]

Hi,

I update the STM32CubeProg, but same error.
What point do I have to check, H/W?

 

[Paul.Lee]

Hi,

My H/W has problem in R/C reset circuit.
R is 10R, instead of 10K.
Problem has been solved.
BR
Paul

[Peter BENSCH]

Thank you for letting us know!

Regards
/Peter