Steval-esc001v1 over-current protection(OCP)

[Hw_it]

I bought a Steval-esc001v1 board and use the FW built in version 5.4.1. Everytime i boot the board,it always showed the over-current flag.Even i don't connect the motor，change HW or

 FW. The program exactly triggered the TIM1 BRK2 interrupt.But i found if i delay more than 20s before the peripheral initialization,sometimes it will be fine. please help me analysis the phenomenon.