如果这是Windows操作系统，那么尝试将COM端口名指定为\.\COM 11
我该怎么办呢？电脑显示找了新硬件，utstarcom dc200 modem 但我装不 了驱动。
是不是根本就没有COM2 这个硬件接口。看看你自己电脑有哪个端口就开启哪个
公开他们的应用程序和设备之间进行通信的 COM 端口的 USB 设备使用收件箱 Usbser.sys Windows 8.1、 Windows Server 2012 R2,Windows 7 或 Windows Server 2008 R2 中创建虚拟 COM 端口。如果此类设备中移除,然后重新快速插入它可能未被重新发现正确,以及 COM 端口,如 COM3,可能无法...
'String was not recognized as a valid DateTime.' 'System.Array' does not contain a definition for 'Select' and no extension method 'Select' 'System.Windows.Forms.Button' does not contain a definition 'System.Xml.XmlException' occurred in System.Xml.dll Visual C#? 'Transaction failed. The ...
Microsoft 365 Windows 11 apps Microsoft Store Account profile Download Center Microsoft Store support Returns Order tracking Certified Refurbished Microsoft Store Promise Flexible Payments Education Microsoft in education Devices for education Microsoft Teams for Education ...
If the virtual machine successfully connects to the physical COM port, the virtual machine does not release the physical COM port back to the host operating system until the virtual machine is shut down.ExamplesExample 1: Connect a virtual COM port to a named pipePowerShell 複製 ...
ERROR_HV_INVALID_PORT_ID 0xC0350011 Hypervisor 無法執行作業,因為指定的埠識別碼無效。 ERROR_HV_INVALID_CONNECTION_ID 0xC0350012 Hypervisor 無法執行作業,因為指定的連接識別碼無效。 ERROR_HV_INSUFFICIENT_BUFFERS 0xC0350013 提供的緩衝區不足,無法傳送訊息。
使用Microsoft 必应进行搜索,并利用 AI 的强大功能查找信息、浏览网页、图像、视频、地图等。为永远充满好奇心的人提供的智能搜索引擎。
Windows Server 2012 R2, Windows 7, or Windows Server 2008 R2. If such a device is removed and then reinserted quickly, it may not be rediscovered correctly, and the COM port, such as COM3, may not be re-created. Additionally, you may receive an error message that re...