STM32H7B3i-DK firmware only starts when programmed with STM32CubeProgrammer

[onio]

When I program my STM32H7B3i-DK board with STM32CubeProgrammer the firmware starts to run immediately. If I power cycle the board the firmware no longer runs.

In other words the firmware would not run after a power cycle.

[Tesla DeLorean]

Firmware likely built for the wrong address, or IS running and locking up.

Instrument Error_Handler() and HardFault_Handler(), and check-point other execution paths.

[onio]

Thanks for the reply. However what I found is happening is that when I disconnect and reconnect the firmware gets erased. I have posted this another query elsewhere on this forum.