Target not connected and st link not detected

[pushkarmondhe]

"Hello, I am using a NUCLEO-H7A3ZI-Q board. I flashed two programs successfully, but on the third attempt, it stopped flashing because I accidentally forgot to enable Serial Wire Debug. Now, when I connect a charging cable, it shows 'No target found,' and when I connect a data cable, it shows 'No ST-LINK detected.' Please help.

[Andrew Neil]

How to solve connection errors when connecting and programming the STM32 target board.

How to solve debugger connection issues

 

[MHoll.2]

Try setting BOOT0 to High (set Jumper before powering the Board!).

On the NUCLEO-H7A3ZI-Q BOOT0 is on CN11 Pin 7, You can Jump this signal directly to CN11 Pin 5.

 

[pushkarmondhe]

Hi @Andrew Neil  @MHoll.2 Thanks for reply. Now it is working