如何使用Windows 10更改USB

我有一个使用PIC18F2550的USB CDC设备，它已经在XP、Win7和Win8.x上工作，但是在我的Win10笔记本电脑上，它枚举和安装OK，但是当它开始作为COMx端口通信时，软件失败。当Win8平板电脑升级到Win10时，同样的问题也出现了。有时当它被连接时，它会随机断开并重新连接。使用设备管理器，我看到它安装在端口0001和集线器0003上。事件日志显示：“设备USBVID04D8&PID_FDCFEti20090414需要进一步安装”，但是，事件查看器显示：“驱动程序管理结束了安装驱动程序eti-bsa.inf_inf_amd64_d223b509628e08feti-btsa3.inf for Device Instance ID USBVID_04D8&PID_FDCFETI20090414;ETI200414wi的过程。”根据我的搜索，我发现了其他关于这个问题的参考资料，结论是没有问题的。我怀疑当通信开始时，问题可能是对过电流的敏感性，但是设备描述符请求完整的500mA，而设备实际上只画出350妈妈。我可能会尝试使用动力集线器，看看它是否工作得更好。实际上，我检查了软件的调试文件，它显示它从COM端口发送了字符，但是在大约1秒的超时时间内没有收到回复。该设备由一个USB CDC部分组成，它连接到同一板上一个单独的数据采集部分，用Si8241数字隔离器隔离，系统工作在57600波特。谢谢！



      以下为原文

    I have a USB CDC device using a PIC18F2550 that has been working on XP, Win7, and Win8.x, but on my Win10 laptop, it enumerates and installs OK, but when it begins communication as a COMx port, the software fails. The same problem occurred on a Win8 tablet when it was upgraded to Win10. Sometimes while it is attached it will disconnect and reconnect at random.

Using the Device Manager, I see that it is installed on Port#0001 and Hub#0003. The events log reads:

"Device USBVID04D8&PID_FDCFETI20090414 requires further installation"

However, the event viewer shows:

"Driver Management concluded the process to install driver eti-bsa.inf_amd64_6d223b509628e08feti-btsa3.inf for Device Instance ID USBVID_04D8&PID_FDCFETI20090414 with the following stateu: 0x0"

From my searches I found other references to this that concluded it was not a problem.

I suspect that the problem could be sensitivity to overcurrent when the communication starts, but the device descriptors request the full 500 mA and the device actually draws only 350 mA. I may try a powered hub to see if that works better.

Actually, I checked my software's debug file and it shows that it sent characters out of the COM port but did not receive a reply within a timeout period of about 1 second. The device consists of a USB CDC section which connects to a separate data acquisition section on the same board, isolated with an Si8241 digital isolator, and the system operates at 57600 baud.

Any ideas would be much appreciated. Thanks!