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ST-LINK on STM32N6570-DK board warning 0x486 when connecting on STM32CubeProgrammer

Avgerinos
Associate III

‎2025-03-22 11:12 AM

Hello

As I am trying to connect the STM32N6570-DK board on the STM32CubeProgrammer, initially the STM32CubeProgrammer recognises my device as in the following picture:

Avgerinos_2-1742666733824.png

 

When I press Connect on the STM32CubeProgrammer I get a
warning: Connection to device 0x486 is lost
as in the following picture:

Avgerinos_0-1742666416276.png

 

and then an error that says Data read fail
as in the following picture:

Avgerinos_1-1742666602148.png

 

I am using a MacBook Air M3, 2024, but even on windows (running on a virtual machine) I get the same error on the STM32CubeProgrammer windows version.

Is there a way to overcome this issue? What could be the cause?

 

Thank you

 

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10 REPLIES 10
PMera.1
Associate III
In response to Andrew Neil

‎2026-03-28 9:19 AM

Yes.

And even when using an external SWD programmer (via MIPI20 connector, i believe) I still get the same error. I've tried with three different PCs now.

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