Not able to connect to the controller using the st-link v3 mini.

[TejasK]

Hi all,
I am using ST link v3 mini when i try to connect the controller using the st link v3 it is showing as the
Error : unable to get the core ID.

But when i try to connect the controller using the DFU mode.
i am able to connect to the controller and able to program the controller and option bytes are also AA(RDP 0)>.
 

What is issue why i am not able to connect to the mcu using the St link (SWD) but able to connect to the controller using the DFU mode.
is there anything i have to make changes in the cube programmer.
 

[Andrew Neil]

You haven’t said what controller, or what board it’s on

 

 

See also:

 

[TejasK]

I am using the STM32f407vet6 controller.

[Andrew Neil]

and what board is it on?