仿真器XDS510连接目标板F2812报错，好久也没弄好，请各位专家指点迷津~

Error connecting to the target: Error 0x80000240/-121 Fatal Error during: Initialization, OCS, This error was generated by TI's USCIF driver. SC_ERR_CMD_HANDLE <-121> A bad controller handle has been given to a function, either before attempting to open the controller, or after having opened the controller and ignored its error status. Valid controller handles are generated when attempts to open the controller return a clean error status. Sequence ID: 0 Error Code: -121 Error Class: 0x80000240
Error connecting to the target: Error 0x80000200/-1037 Fatal Error during: OCS, PTI_ERR_EMU_CLOSE Error Occured at 0x00000000 Sequence ID: 0 Error Code: -1037 Error Class: 0x80000200