打开测头校验程序后机器自检有响应， 自检后程序窗口跳出对话框显示有错误 WIRDS Error: Connection not established. Cannot communicate with the arm.Check the follorwing. 确定后出现 1.Is the Arm poweron? 2.Is the cable form the computer connected? 3.Have you selected the correct communication port?(com1-8,usb wifi) 4.Is the another application runing which may be using the arm or comunication port? 可以确定的是电源和数据线都已接通 此问题该如何解决？？