uniflash下载程序出现问题， ERROR: No device USB ports were found，SOP的三种模式都设置过了，求助！谢谢

[10:20:39] Begin ServicePackProgramming operation. [10:20:40] INFO: > Executing Operation: Connect [10:20:42] INFO: setting break signal [10:20:43] INFO: detecting FTDI for device reset [10:20:43] ERROR: No device USB ports were found [10:20:43] INFO: --- please restart the device --- [10:20:58] ERROR: ---reading ACK signal failed--- [10:20:58] WARNING: ---seting break signal to false failed--- [10:21:00] INFO: setting break signal [10:21:01] INFO: detecting FTDI for device reset [10:21:01] ERROR: No device USB ports were found [10:21:01] INFO: --- please restart the device --- [10:21:07] Cancelling current process , please wait... [10:21:16] ERROR: ---reading ACK signal failed--- [10:21:16] WARNING: ---seting break signal to false failed--- [10:21:18] INFO: setting break signal [10:21:19] INFO: detecting FTDI for device reset [10:21:19] ERROR: No device USB ports were found [10:21:19] INFO: --- please restart the device --- [10:21:19] INFO: Cancel button pressed [10:21:19] WARNING: ---seting break signal to false failed--- [10:21:19] FATAL: --- Can't connect to device !! --- [10:21:21] FATAL: Error connecting to the device. Please check your COM port settings. Error code: -2 [10:21:21] INFO: > Executing Operation: Disconnect [10:21:21] Operation Canceled: Process canceled.

做一下交叉实验？（比如已知好使的cc3200和好使的仿真器之间）

怎么感觉是仿真器，或者PC软件driver的问题呢。。。。