DRV8350H-EVM: The MSP430 development board is properly debugged online, but each time the emulator is powered up, reset is required to operate, or the SBWTDIO (EZFET_SBW_RST) interface is touched by other development board interfaces, the program can run a

I have developed a new board used to driver BLDC, It mainly used DRV 8350  and  MSP430F5529,  but I don't use the onboard emulator but use the EZ_FET emulator from LP-MSP430FR2476 DEVEOPMENT kit. when debugging ,I only use the SBWTDIO / SBWTCK  and  GND. During Online debugging it is normal ,the motor can run as I want ,everything is ok. but after disconnect  EZ fet emulator, and repower the board, The board needs to RESET to run. Why?